N-CSR

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-04878

SEI Institutional Managed Trust

(Exact name of Registrant as specified in charter)

SEI Investments

One Freedom Valley Drive

Oaks, PA 19456

(Address of principal executive offices) (Zip code)

SEI Investments

One Freedom Valley Drive

Oaks, PA 19456

CT Corporation

101 Federal Street

Boston, MA 02110

(Name and address of agent for service)

Registrant’s telephone number, including area code: 1-800-342-5734

Date of fiscal year end: September 30, 2010

Date of reporting period: September 30, 2010

Item 1. Reports to Stockholders.

SEI Institutional Managed Trust

Annual Report as of September 30, 2010

Large Cap Fund

Large Cap Value Fund

Large Cap Growth Fund

Tax-Managed Large Cap Fund

S&P 500 Index Fund

Small Cap Fund

Small Cap Value Fund

Small Cap Growth Fund

Tax-Managed Small Cap Fund

Mid-Cap Fund

U.S. Managed Volatility Fund

Global Managed Volatility Fund

Tax-Managed Managed Volatility Fund

Real Estate Fund

Enhanced Income Fund

Core Fixed Income Fund

U.S. Fixed Income Fund

High Yield Bond Fund

Real Return Fund

Multi-Strategy Alternative Fund

TABLE OF CONTENTS

Management’s Discussion and Analysis of Fund Performance	1
Summary Schedules of Investments/Schedules of Investments	28
Statements of Assets and Liabilities	134
Statements of Operations	138
Statements of Changes in Net Assets	142
Financial Highlights	148
Notes to Financial Statements	152
Report of Independent Registered Public Accounting Firm	169
Trustees and Officers of the Trust	170
Disclosure of Fund Expenses	173
Board of Trustees Considerations in Approving the Advisory  and Sub-Advisory Agreements	175
Notice to Shareholders	178
Shareholder Voting Results	179

The Trust files its complete schedule of portfolio holdings with the Securities and Exchange Commission (“Commission”) for the first and third quarters of each fiscal year on Form N-Q within sixty days after period end. The Trust’s Form N-Q is available on the Commission’s website at http://www.sec.gov, and may be reviewed and copied at the Commission’s Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330.

A description of the policies and procedures that the Trust uses to determine how to vote proxies relating to portfolio securities, as well as information relating to how a Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, is available (i) without charge, upon request, by calling 1-800-DIAL-SEI; and (ii) on the Commission’s website at http://www.sec.gov.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Large Cap Fund

I. Objective

The Large Cap Fund (the “Fund”) seeks to provide long-term growth of capital and income.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilizes the following sub-advisers as of September 30, 2010: Analytic Investors LLC, Aronson + Johnson + Ortiz, L.P., Brown Investment Advisory Incorporated, Delaware Management Company, Legg Mason Capital Management, Inc., LSV Asset Management, Neuberger Berman LLC, and Quantitative Management Associates, LLC. During the fiscal year, Brown Investment Advisory Incorporated was added to the Fund and Intech Investment Management was terminated.

III. Market Commentary

The markets gained 10.75% for the year ended September 30, 2010, as measured by the Russell 1000 Index (the “Index”). It was a difficult market environment for stocks, driven by macroeconomic factors and accompanied by high correlations and volatility. Gains were established in the latter portion of calendar year 2009 and in the first few months of 2010, but were punctuated by steep declines in late January and early May. The market returned to its October 2009 levels by July. Volatility continued throughout the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

From a style perspective, value and growth stocks tracked each other closely until September, at which point growth outperformed value by more than 3%. Small-cap stocks beat their large-cap counterparts by a few percentage points, again with most of the divergence in the month of September.

IV. Return vs. Benchmark

For the period ended September 30, 2010, the Large Cap Fund, Class A, underperformed the Index, returning 9.00% versus the Index return of 10.75%.

V. Fund Attribution

The Fund’s underperformance was driven largely by negative stock selection across several sectors. More specifically, a sizeable holding in Utility name AES Corp. lagged during the year, as investors sold shares after the company issued poor guidance for the coming quarters. Poor stock selection in the Information Technology sector also proved to be a challenge for the Fund during the year. The portfolio maintained underweights to rallying names such as NetApp and Oracle, while holding overweights to underperformers Yahoo! Inc. and Nokia. Online travel site priceline.com was a positive spot for the Fund, as the company reported much stronger-than-expected profits, which drove the share price significantly higher.

Large Cap Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	Cumulative Inception to Date
Large Cap Fund, Class A		9.00%

Comparison of Change in the Value of a $100,000 Investment in the Large Cap Fund, Class A, versus the Russell 1000 Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class A shares were offered beginning 10/01/09. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for the period reflect fee waivers and/or reimbursements in effect for the period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 1

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Large Cap Value Fund

I. Objective

The Large Cap Value Fund (the “Fund”) seeks to provide long-term growth of capital and income.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Aronson + Johnson + Ortiz, LP, INTECH Investment Management, LLC, Lazard Asset Management LLC, Legg Mason Capital Management, Inc. and LSV Asset Management. During the fiscal year ended September 30, 2010, the Fund added Lazard Asset Management LLC.

III. Market Commentary

The markets gained 8.90% for the year ended September 30, 2010, as measured by the Russell 1000 Value Index (the “Index”). It was a difficult market environment for stocks, driven by macroeconomic factors and accompanied by high correlations and volatility. Gains were established in the latter portion of calendar year 2009 and in the first few months of 2010, but were punctuated by steep declines in late January and early May. The market returned to its October 2009 levels by July. Volatility continued throughout the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the one-year period.

From a style perspective, value and growth stocks tracked each other closely until September, at which point growth outperformed value by more than 3%. Small-cap stocks beat their large-cap counterparts by a few percentage points, again with most of the divergence in the month of September.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Large Cap Value Fund, Class A, underperformed the Index, returning 8.43% versus the Index return of 8.90%.

V. Fund Attribution:

The Fund’s underperformance was driven by a combination of prudent allocation decisions and poor stock selection. A series of

underweights to money center banks such as Citigroup, Bank of America and JPMorgan Chase were contributors to the Fund, as investors sold those shares due to regulatory concerns. Positions within the Consumer Discretionary sector, particularly in retailing stocks, were also contributors to alpha. The Fund maintained a sizeable underweight to the Industrials sector, which was a headwind during a cyclical-oriented rally off the market bottom in 2009. More specifically, underweights to capital goods companies, such as Boeing, hurt performance during the year.

Large Cap Value Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Since Inception
Large Cap Value Fund, Class A		8.43%		(10.22)%		(1.34)%		2.14%		7.61%
Large Cap Value Fund, Class I		8.23%		(10.41)%		(1.55)%		1.89%		7.30%

Comparison of Change in the Value of a $100,000 Investment in the Large Cap Value Fund, Class A and Class I, versus the Russell 1000 Value Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. The performance indicated above for Class A Shares begins on 10/3/94 at which time Mellon Equity Associates acted as investment adviser to the Fund. Previous periods during which the Fund was advised by another investment adviser are not shown. Class I Shares performance for the period prior to 8/6/01 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 10/3/94 and Class I Shares were offered beginning 8/6/01. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Large Cap Growth Fund

I. Objective

The Large Cap Growth Fund (the “Fund”) seeks to provide capital appreciation.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Brown Investment Advisory Incorporated, Delaware Management Company, INTECH Investment Management, LLC, Legg Mason Capital Management Inc. and Neuberger Berman LLC. During the year ended September 30, 2010, the Fund added Brown Investment Advisory Incorporated and terminated Goldman Sachs Asset Management, L.P. and Quantitative Management Associates LLC.

III. Market Commentary

The markets gained 12.65% for the year ended September 30, 2010, as measured by the Russell 1000 Growth Index (the “Index”). It was a difficult market environment for stocks, driven by macroeconomic factors and accompanied by high correlations and volatility. Gains were established in the latter portion of calendar year 2009 and in the first few months of 2010, but were punctuated by steep declines in late January and early May. The market returned to its October 2009 levels by July. Volatility continued throughout the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

From a style perspective, value and growth stocks tracked each other closely until September, at which point growth outperformed value by more than 3%. Small-cap stocks beat their large-cap counterparts by a few percentage points, again with most of the divergence in the month of September.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Large Cap Growth Fund, Class A, underperformed the Index, returning 12.29% versus the Index return of 12.65%.

V. Fund Attribution

The Fund’s underperformance was driven by poor stock selection across multiple sectors; however, holdings in Information Technology added to performance. Avoiding the semiconductor names in favor of software and services companies (such as virtual desktop company Citrix) also added significantly to the Fund. In addition, within the Consumer Discretionary sector, online travel site priceline.com was a strong performer after posting a significantly better-than-expected earnings report. Holdings in the Financials sector weighed on the Fund, as regulation worries provided a reason for investors to sell shares. Underweights to mining and chemical companies, including Praxair Inc. and Newmont Mining, were a headwind during the period, as Materials names performed very well.

Large Cap Growth Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
Large Cap Growth Fund, Class A		12.29%		(5.55)%		0.87%		(5.14)%		6.17%
Large Cap Growth Fund, Class I		12.06%		(5.75)%		0.64%		(5.38)%		5.84%

Comparison of Change in the Value of a $100,000 Investment in the Large Cap Growth Fund, Class A and Class I, versus the Russell 1000 Growth Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 8/6/01 is the performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 12/20/94 and Class I Shares were offered beginning 8/6/01. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 3

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Tax-Managed Large Cap Fund

I. Objective

The Tax-Managed Large Cap Fund (the “Fund”) aims to provide high long-term after-tax returns.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisors as of September 30, 2010: Aronson+Johnson+Ortiz, LP, Brown Investment Advisory Incorporated, Delaware Management Company, Legg Mason Capital Management Inc., LSV Asset Management, Neuberger Berman Management LLC, Parametric Portfolio Associates and Quantitative Management Associates LLC. During the year ended September 30, 2010, the Fund added Brown Investment Advisory Incorporated and terminated Goldman Sachs Asset Management, L.P.

III. Market Commentary

The markets gained 10.75% for the year ended September 30, 2010, as measured by the Russell 1000 Index (the “Index”). It was a difficult market environment for stocks, driven by macroeconomic factors and accompanied by high correlations and volatility. Gains were established in the latter portion of calendar year 2009 and in the first few months of 2010, but were punctuated by steep declines in late January and early May. The market returned to its October 2009 levels by July. Volatility continued throughout the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over fiscal year.

From a style perspective, value and growth stocks tracked each other closely until September, at which point growth outperformed value by more than 3%. Small-cap stocks beat their large-cap counterparts by a few percentage points, again with most of the divergence in the month of September.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Tax-Managed Large Cap Fund, Class A, underperformed the Index, returning 9.26% versus the Index return of 10.75%.

V. Fund Attribution

During the period, the Fund’s underperformance was driven by a combination of allocation and stock selection decisions. The Fund maintained an underweight to the Industrials sector, which performed well during the year. More specifically, an underweight to capital goods companies, such as Caterpillar Inc. and Deere & Co., hurt portfolio performance. Stock selection decisions in the Materials sector also posed a challenge, as an underweight to mining companies weighed on performance. Selections in the Healthcare sector offset further negative attribution. Biotech firm Genzyme received a takeout offer from rival Sanofi-Aventis, which lifted shares higher. Positions in UnitedHealth Group and Novo Nordisk also contributed to alpha.

Tax-Managed Large Cap Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
Tax-Managed Large Cap Fund, Class A		9.26%		(7.98)%		(0.19)%		(1.13)%		1.70%
Tax-Managed Large Cap Fund, Class Y		9.54%		(7.69)%		0.10%		(0.88)%		1.91%

Comparison of Change in the Value of a $100,000 Investment in the Tax-Managed Large Cap Fund, Class A and Class Y, versus the Russell 1000 Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class Y Shares performance for the period prior to 4/8/02 is performance derived from the performance of the Class A Shares. The performance of Class Y Shares may be different from the performance of Class A Shares because of different distribution fees paid by Class Y shareholders. Class A Shares were offered beginning 3/5/98 and Class Y Shares were offered beginning 4/8/02. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

S&P 500 Index Fund

I. Objective

The S&P 500 Index Fund (the “Fund”) seeks to achieve investment results that correspond to the aggregate price and dividend performance of the securities in the S&P 500 Index (the “Index”).

II. Multi-Manager Approach Statement

The Fund uses a sub-adviser to manage the Fund under the supervision of SEI Investments Management Corp. Currently, the sub-adviser is SSgA Funds Management, Inc. No manager changes were made during the fiscal year.

III. Market Commentary

The markets gained 12.65% for the year ended September 30, 2010, as measured by the Russell 1000 Growth Index. Stocks wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May. By July, the market was back at October 2009 levels. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession receded. The month of September provided nearly all of the gains realized over the fiscal year.

From a style perspective, value and growth stocks tracked each other closely until September, at which point growth outperformed value by more than 3%. Small cap beat large cap by a few percentage points, again with most of the divergence coming in the month of September.

IV. Return vs. Benchmark:

For the year ended September 30, 2010, the S&P 500 Index Fund, Class A, underperformed the Index, returning 9.93% versus the Index return of 10.16%. Please note that one cannot invest directly in an index. Unlike a mutual fund, an index does not have an investment adviser and does not pay any commissions or expenses; therefore, its performance is higher than that of a mutual fund that passively invests in the same index.

V. Fund Attribution

The Fund’s performance followed a pattern similar to the performance of the Index, since it invested in the same securities with generally the

same weights. Cyclical-oriented companies led during the period, as investors sought riskier assets and market sentiment improved relative to the prior twelve months. Consumer Discretionary and Industrials stocks led performance during the period, while Financials and Energy stocks lagged. The overhang of pending regulation in the Financials sector kept investors at bay. In Energy, doubts about final demand in light of tepid economic recovery kept shares lower. Energy shares also fell, as the oil spill in the Gulf region brought negative sentiment to the sector. During the fiscal year, small-cap stocks outperformed their large-cap brethren, and growth-oriented stocks outperformed their value-oriented counterparts across all market caps.

S&P 500 Index Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
S&P 500 Index Fund, Class A		9.93%		(7.50)%		0.28%		(0.82)%		5.44%
S&P 500 Index Fund, Class E		10.10%		(7.35)%		0.43%		(0.66)%		9.58%
S&P 500 Index Fund, Class I		9.66%		(7.71)%		0.03%		(1.06)%		5.14%

Comparison of Change in the Value of a $10,000 Investment in the S&P 500 Index Fund, Class A, Class E, and Class I, versus the S&P 500 Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class A shares were offered beginning 2/28/96. Class E shares were offered beginning 7/31/85. Class I shares were offered beginning 6/28/02. Class I shares performance for the period prior to 6/28/02 is performance derived from performance of the Class A shares. The performance of the Class A and Class I shares may be lower than the performance of Class E shares because of different distribution fees paid by Class A and Class I shareholders. Effective 7/31/97, the Board of Trustees approved the renaming of Class A and Class E shares to Class E and Class A shares, respectively. In addition, returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 5

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Small Cap Fund

I. Objective

The Small Cap Fund (the “Fund”) seeks to provide capital appreciation.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Allianz Global Investors Capital, LLC, AQR Capital Management, LLC, Integrity Asset Management, LLC, Los Angeles Capital Management and Equity Research, Inc., Robeco Investment Management, Inc. and Wellington Management Company, LLP. No manager changes were made in the Fund, since its inception on October 1, 2009.

III. Market Commentary

The markets gained 13.35% for the year ended September 30, 2010, as measured by the Russell 2000 Index (“Index”). Small-cap stocks, which had gained 33% in the prior twelve months, wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May, but the market returned to its October 2009 levels by July. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

Real estate securities performed well over the period, as investors searched for yield, with the Wilshire Real Estate Securities Index returning 30.02%. The upward movement in this area was more consistent through the year as compared to the broader market.

From a factor perspective, value and growth stocks tracked closely through the period until September, when growth outperformed value by more than 3%. Small-cap stocks outperformed their large-cap counterparts by a few percentage points, but most of the divergence came in September. Momentum became a positive factor through the period, but many quantitative investors had difficulty with the severe inflection points caused by market volatility.

IV. Return vs. Benchmark

For the period ended September 30, 2010, the Small Cap Fund, Class A, underperformed the Index, returning 11.64% versus the Index return of 13.35%.

V. Fund Attribution

The Fund underperformed the Index due to a combination of poor stock selection and unfavorable asset allocation. The major performance detractor in the period was the Energy sector, where the Fund’s holdings in the oil, gas and consumable fuels industry struggled as natural gas prices plummeted in the early part of the calendar year. Information Technology was also a significant detractor during the period, led by communications equipment, computers and peripherals. On the positive side, the Fund’s underweight to Financials provided relief, as that sector continued to work through challenges.

Small Cap Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	Cumulative Inception to Date
Small Cap Fund, Class A		11.64%

Comparison of Change in the Value of a $100,000 Investment in the Small Cap Fund, Class A, versus the Russell 2000 Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class A shares were offered beginning 10/01/09. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for the period reflect fee waivers and/or reimbursements in effect for the period; absent fee waivers and reimbursements, performance would have been lower.

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Small Cap Value Fund

I. Objective

The Small Cap Value Fund (the “Fund”) seeks to provide capital appreciation.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Artisan Partners Limited Partnership, Lee Munder Capital Group, LLC, LSV Asset Management, Martingale Asset Management, L.P., Robeco Investment Management and Wellington Management Company, LLP. During the fiscal year, Panagora Asset Management, Inc, was terminated.

III. Market Commentary

The markets gained 13.35% for the year ended September 30, 2010, as measured by the Russell 2000 Index. Small-cap stocks, which had gained 33% in the prior twelve months, wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May, but the market returned to its October 2009 levels by July. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

Real estate securities performed well over the period, as investors searched for yield, with the Wilshire Real Estate Securities Index returning 30.02%. The upward movement in this area was more consistent through the year as compared to the broader market.

From a factor perspective, value and growth stocks tracked closely through the period until September, when growth outperformed value by more than 3%. Small-cap stocks outperformed their large-cap counterparts by a few percentage points, but most of the divergence came in September. Momentum became a positive factor through the period, but many quantitative investors had difficulty with the severe inflection points caused by market volatility.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Small Cap Value Fund, Class A, outperformed the Russell 2000 Value Index (the “Index”), returning 13.93% versus the Index return of 11.84%.

V. Fund Attribution

Positive stock selection was the primary driver behind the Fund’s outperformance in the fiscal year. The Financials sector was the largest contributor to performance, driven primarily by stock picking in the real estate and insurance industries. The Fund also benefited from security decisions in the Information Technology sector (particularly in software) and the Materials sector (in chemicals). The only sector that meaningfully detracted from performance during the fiscal year was Energy, particularly in the oil, gas and consumable fuels segment.

Small Cap Value Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
Small Cap Value Fund, Class A		13.93%		(4.62)%		1.17%		7.73%		9.81%
Small Cap Value Fund, Class I		13.73%		(4.85)%		0.93%		7.44%		9.46%

Comparison of Change in the Value of a $100,000 Investment in the Small Cap Value Fund, Class A and Class I, versus the Russell 2000 Value Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 2/11/02 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 12/20/94 and Class I Shares were offered beginning 2/11/02. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 7

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Small Cap Growth Fund

I. Objective

The Small Growth Fund (the “Fund”) seeks to provide long-term capital appreciation.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Allianz Global Investors Capital, LLC, AQR Capital Management, LLC, Janus Capital Management, LLC, Lee Munder Capital Group, LLC and Los Angeles Capital Management and Equity Research Inc. During the fiscal year, Allianz Global Investors Capital, LLC was added to the Fund and Oppenheimer Capital LLC was terminated.

III. Market Commentary

The markets gained 13.35% for the year ended September 30, 2010, as measured by the Russell 2000 Index. Small-cap stocks, which had gained 33% in the prior twelve months, wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May, but the market returned to its October 2009 levels by July. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

Real estate securities performed well over the period, as investors searched for yield, with the Wilshire Real Estate Securities Index returning 30.02%. The upward movement in this area was more consistent through the year as compared to the broader market.

From a factor perspective, value and growth stocks tracked closely through the period until September, when growth outperformed value by more than 3%. Small-cap stocks outperformed their large-cap counterparts by a few percentage points, but most of the divergence came in September. Momentum became a positive factor through the period, but many quantitative investors had difficulty with the severe inflection points caused by market volatility.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Small Cap Growth Fund, Class A, underperformed the Russell 2000 Growth Index (the “Index”), returning 13.36% versus the Index return of 14.79%.

V. Fund Attribution

The Fund underperformed the Index through the period due to poor stock selection, primarily in the Energy and Information Technology (“IT”) sectors. In Energy, the Fund’s holdings in the fuels segment performed poorly due to substantial declines in natural gas prices. Security selection in the IT sector was particularly challenging in software and services, as well as in hardware. On the positive side, the Fund saw favorable stock decisions in the Financials and Consumer Discretionary sectors. Healthcare contributed as well, driven by the Fund’s underweight position, as well as beneficial stock picks.

Small Cap Growth Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
Small Cap Growth Fund, Class A		13.36%		(9.87)%		(2.13)%		(2.93)%		7.90%
Small Cap Growth Fund, Class I		13.09%		(10.11)%		(2.38)%		(3.20)%		7.57%

Comparison of Change in the Value of a $100,000 Investment in the Small Cap Growth Fund, Class A and Class I, versus the Russell 2000 Growth Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 8/6/01 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 4/20/92 and Class I Shares were offered beginning 8/6/01. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

8 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Tax-Managed Small Cap Fund

I. Objective

The Tax-Managed Small Cap Fund (the “Fund”) seeks to provide high long-term after-tax returns.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Century Capital Management, LLC, Lee Munder Capital Group, LLC, Los Angeles Capital Management and Equity Research Inc., LSV Asset Management, Parametric Portfolio Associates, Wellington Management Company, LLP and Wells Capital Management Inc. During the fiscal year, Century Capital Management, LLC was added to the Fund.

III. Market Commentary

The markets gained 13.35% for the year ended September 30, 2010, as measured by the Russell 2000 Index. Small-cap stocks, which had gained 33% in the prior 12 months, wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May, but the market returned to its October 2009 levels by July. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

Real estate securities performed well over the period, as investors searched for yield, with the Wilshire Real Estate Securities Index returning just over 30%. The upward movement in this area was more consistent through the year as compared to the broader market.

From a factor perspective, value and growth stocks tracked closely through the period until September, when growth outperformed value by more than 3%. Small-cap stocks outperformed their large-cap counterparts by a few percentage points, but most of the divergence came in September. Momentum became a positive factor through the period, but many quantitative investors had difficulty with the severe inflection points caused by market volatility.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Tax-Managed Small Cap Fund, Class A, underperformed the Russell 2500 Index (the “Index”), returning 15.05% versus the Index return of 15.92%.

V. Fund Attribution

Unfavorable stock selection contributed to the Funds underperformance of the Index. Securities selection in Telecommunication Services, Materials and Industrials provided a performance tailwind. The main performance detractors in the period were the Financials and Information Technology (“IT”) sectors. In Financials, the Fund was hurt by its underweight to real estate securities, as well as lackluster stock picks within that segment. In IT, security selection was weak in the semiconductors and Internet software & services industries.

Tax-Managed Small Cap Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized Inception to Date
Tax-Managed Small Cap Fund, Class A		15.05%		(6.26)%		0.16%		3.58%

Comparison of Change in the Value of a $100,000 Investment in the Tax-Managed Small Cap Fund, versus the Russell 2500 Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Fund shares were offered beginning 10/31/00. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower

SEI Institutional Managed Trust / Annual Report / September 30, 2010 9

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Mid-Cap Fund

I. Objective

The Mid-Cap Fund (the “Fund”) seeks to provide long-term capital appreciation.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Lee Munder Capital Group, LLC, Quantitative Management Associates LLC and Wells Capital Management Inc.

Wells Capital Management Inc. and Lee Munder Capital Group, LLC were added to the Fund over the fiscal year, while Martingale Asset Management was terminated.

III. Market Commentary

The markets gained 13.35% for the year ended September 30, 2010, as measured by the Russell 2000 Index. Small-cap stocks, which had gained 33% in the prior twelve months, wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May, but the market returned to its October 2009 levels by July. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

Real estate securities performed well over the period, as investors searched for yield, with the Wilshire Real Estate Securities Index returning 30.02%. The upward movement in this area was more consistent through the year as compared to the broader market.

From a factor perspective, value and growth stocks tracked closely through the period until September, when growth outperformed value by more than 3%. Small-cap stocks outperformed their large-cap counterparts by a few percentage points, but most of the divergence came in September. Momentum became a positive factor through the period, but many quantitative investors had difficulty with the severe inflection points caused by market volatility.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Mid-Cap Fund, Class A, underperformed the Russell Midcap Index (the “Index”), returning 14.13% versus the Index return of 17.54%.

V. Fund Attribution

The Fund underperformed the Index due to poor stock selection, especially in the Information Technology, Financials and Consumer Discretionary sectors. In Information Technology, the Fund’s managers struggled in the software and services segment. Real estate investment trusts and banks were problematic in Financials, while hospitality and specialty retail were challenging in Consumer Discretionary. Some offsetting benefit was provided through stock selection in Energy (oil, gas and consumable fuels) and Healthcare (equipment and services).

Mid-Cap Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
Mid-Cap Fund, Class A		14.13%		(6.96)%		0.53%		4.89%		8.87%
Mid-Cap Fund, Class I		13.91%		(7.16)%		0.29%		4.62%		8.57%

Comparison of Change in the Value of a $100,000 Investment in the Mid-Cap Fund, Class A and Class I, versus the Russell Midcap Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 10/01/07 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I Shares. Class A Shares were offered beginning 2/16/93 and Class I Shares were offered beginning 10/01/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

10 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

U.S. Managed Volatility Fund

I. Objective

The U.S. Managed Volatility Fund (the “Fund”) seeks capital appreciation with less volatility than the broad U.S. equity markets.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Analytic Investors, LLC and Aronson + Johnson + Ortiz, LP. For the fiscal year ended September 30, 2010, no manager changes were made in the Fund.

III. Market Commentary

After a nine-month market rally favoring lower-quality companies in 2009 (which is characteristic of an early recovery), the markets paused in 2010. Although economic indicators continued to improve, high unemployment and the housing decline proved to be more persistent than many had anticipated.

Unable to see the sources of further economic and earnings growth for 2011, investors became increasingly uncertain over the sustainability of global economic recovery. With so much hanging on the economy and policy decisions, the company specifics yielded to macroeconomic themes in their importance for stock returns, driving inter-stock correlations to historic highs.

Large swings between risk appetite and risk aversion created sharp movements throughout the year, without a sustained direction. In the beginning of 2010, investors expressed their lack of enthusiasm about Chinese monetary tightening and proposed U.S. financial regulations, causing market volatility to spike and markets to sell off. However, American corporations continued to deliver good earnings results, driving the markets forward. By the end of the first quarter, investors’ sentiment reached euphoric levels. Improving macroeconomic data, robust earnings and subsiding worries about Greece and China propelled the equity markets upwards with an almost daily stream of positive returns. Cyclical, high-beta stocks were rewarded, while quality and defensiveness were ignored.

The markets hastily retreated in May and June, erasing all of the prior gains year to date. In spite of strong economic indicators coming out of most major economies, the pace of improvement has slowed. Investors also focused their attention on European sovereign debt problems and Chinese central-bank tightening, with heightened anxiety about how both situations would affect the global economy. As worries about a potential double-dip recession intensified, market participants became increasingly confident about the prospects of a second round of quantitative easing in the U.S., purchasing Treasuries with the intention of selling them back to the Federal Reserve at a higher price, and buying up risky assets in anticipation of an influx of liquidity.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the U.S. Managed Volatility Fund, Class A, outperformed the Russell 3000 Index (the “Index”), returning 13.61% versus the Index return of 10.96%.

V. Fund Attribution

For the fiscal year, the Fund successfully achieved its primary objective of lowering volatility, with the realized annualized standard deviation of 15.1% (daily frequency), compared to the Index’s results of 19.7%, constituting a 23% relative reduction.

With high-beta names lagging the broad market, the Fund benefited from its low-volatility profile. Amid range-bound markets, the Fund was able to provide downside protection, preserving more capital that allowed further compounding of returns during the positive months.

Industry positioning was also beneficial. In particular, the Fund’s strong underweight to the Diversified Financials industry added 1.45% at the total portfolio level, as worries about increased capital requirements, further write-downs and regulatory concerns drove big banking shares down. Underweighting Energy in an environment of stalling oil prices and broader repercussions of BP’s oil spill added another 0.43%. Overweighting the Food, Beverage and Tobacco industry was also helpful, as the industry proved to be more resilient during periods of increased uncertainty over future economic growth. The effects were partially mitigated by underweight to Capital Goods, as the industry continued improving on the back of increased overseas demand and a recovery in domestic business activity.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 11

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

U.S. Managed Volatility Fund (Concluded)

U.S. Managed Volatility Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized Inception to Date
U.S. Managed Volatility Fund, Class A		13.61%		(4.63)%		1.62%		3.78%
U.S. Managed Volatility Fund, Class I		13.38%		(4.88)%		1.29%		3.42%

Comparison of Change in the Value of a $150,000 Investment in the U.S. Managed Volatility Fund, Class A and Class I, versus the Russell 3000 Index*

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 6/29/07 is performance derived from the performance of the Class A Shares. The performance of the Class I Shares may be lower then the performance of the Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 10/28/04 and Class I Shares were offered beginning 6/29/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

* The Fund has changed its benchmark from the S&P 500 Index to the Russell 3000 Index (“Index”), as the Index is more closely aligned with the strategy and investments of the Fund.

12 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Global Managed Volatility Fund

I. Objective

The Global Managed Volatility Fund (the “Fund”) seeks capital appreciation with less volatility than the broad global equity markets.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Acadian Asset Management LLC and Analytic Investors, LLC. For the fiscal year ending September 30, 2010, no manager changes were made in the Fund.

III. Market Commentary

After a nine-month market rally favoring lower-quality companies in 2009 (which is characteristic of an early recovery), the markets paused in 2010. Although economic indicators continued to improve, high unemployment and the housing decline proved to be more persistent than many had anticipated.

Unable to see the sources of further economic and earnings growth for 2011, investors became increasingly uncertain over the sustainability of global economic recovery. With so much hanging on the economy and policy decisions, the company specifics yielded to macroeconomic themes in their importance for stock returns, driving inter-stock correlations to historic highs.

Large swings between risk appetite and risk aversion created sharp movements throughout the year, without a sustained direction. In the beginning of 2010, investors expressed their lack of enthusiasm about Chinese monetary tightening and proposed U.S. financial regulations, causing market volatility to spike and markets to sell off. However, American corporations continued to deliver good earnings results, driving the markets forward. By the end of the first quarter, investors’ sentiment reached euphoric levels. Improving macroeconomic data, robust earnings and subsiding worries about Greece and China propelled the equity markets upwards with an almost daily stream of positive returns. Cyclical, high-beta stocks were rewarded, while quality and defensiveness were ignored.

The markets hastily retreated in May and June, erasing all of the prior gains year to date. In spite of strong economic indicators coming out of most major economies, the pace of improvement has slowed. Investors also focused their attention on European sovereign debt problems and Chinese central-bank tightening, with heightened anxiety about how both situations would affect the global economy. As worries about a potential double-dip recession intensified, market participants became increasingly confident about the prospects of a second round of quantitative easing in the U.S., purchasing Treasuries with the intention of selling them back to the Federal Reserve at a higher price, and buying up risky assets in anticipation of an influx of liquidity.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Global Managed Volatility Fund, Class A, underperformed the MSCI World Index, Hedged (the “Index”), returning 5.37% versus the Index return of 6.34%.

V. Fund Attribution

For the fiscal year, the Fund successfully reached its objective of smoothing market volatility. In local terms, it realized an annualized intra-year standard deviation more than a third lower than that of the Index. With range-bound markets over the last year, the strategy was able to provide downside protection and keep up with the overall market.

Targeting lower-volatility securities, a majority of the Fund’s holdings are in the lowest 20% of stocks ranked by market beta. For the fiscal year, low-beta names outperformed their high-beta counterparts, markedly helping the Fund’s performance. The Fund’s strong underweight to Financials added 1.8% at the total portfolio level, as worries about increased capital requirements, further write-downs and regulatory concerns drove big banking shares down, particularly in the U.S. Overweighting Consumer Staples was also beneficial, as the sector proved to be more resilient during periods of increased uncertainty over future economic growth. The effects were partially mitigated by an underweight to Materials, which continued its rally on the back of strong commodity prices, and Industrials, as the sector showed strong signs of improvement on the back of increased emerging-market demand and some recovery in domestic business activity.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 13

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Global Managed Volatility Fund (Concluded)

After adjusting for the low-volatility effects and sector positioning, stock selection was disappointing. The Fund suffered from a number of stocks in Japanese Industrials, such as Yamato Holdings Co., Kamigumi Co. and Japan Airlines. In Energy, BP alone detracted 0.30% at the Fund level.

Global Managed Volatility Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized Inception to Date
Global Managed Volatility Fund, Class A		5.37%		(8.80)%		(3.43)%
Global Managed Volatility Fund, Class I		5.32%		(9.01)%		(3.72)%

Comparison of Change in the Value of a $100,000 Investment in the Global Managed Volatility Fund, Class A and Class I, versus the MSCI World Index, Hedged

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 6/29/07 is performance derived from the performance of the Class A Shares. The performance of the Class I Shares may be lower then the performance of the Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 7/27/06 and Class I Shares were offered beginning 6/29/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

14 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Tax-Managed Managed Volatility Fund

I. Objective

The Tax-Managed Managed Volatility Fund (the “Fund”) seeks to maximize after-tax returns, but with a lower level of volatility than the broad U.S. equity markets.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Analytic Investors, LLC, Aronson + Johnson + Ortiz, LP and Parametric Portfolio Associates. For the fiscal year ended September 30, 2010, no manager changes were made in the Fund.

III. Market Commentary

After a nine-month market rally favoring lower-quality companies in 2009 (which is characteristic of an early recovery), the markets paused in 2010. Although economic indicators continued to improve, high unemployment and the housing decline proved to be more persistent than many had anticipated.

Unable to see the sources of further economic and earnings growth for 2011, investors became increasingly uncertain over the sustainability of global economic recovery. With so much hanging on the economy and policy decisions, the company specifics yielded to macroeconomic themes in their importance for stock returns, driving inter-stock correlations to historic highs.

Large swings between risk appetite and risk aversion created sharp movements throughout the year, without a sustained direction. In the beginning of 2010, investors expressed their lack of enthusiasm about Chinese monetary tightening and proposed U.S. financial regulations, causing market volatility to spike and markets to sell off. However, American corporations continued to deliver good earnings results, driving the markets forward. By the end of the first quarter, investors’ sentiment reached euphoric levels. Improving macroeconomic data, robust earnings and subsiding worries about Greece and China propelled the equity markets upwards with an almost daily stream of positive returns. Cyclical, high-beta stocks were rewarded, while quality and defensiveness were ignored.

The markets hastily retreated in May and June, erasing all of the prior gains year to date. In spite of strong economic indicators coming out of most major economies, the pace of improvement has slowed. Investors also focused their attention on European sovereign debt problems and Chinese central-bank tightening, with heightened anxiety about how both situations would affect the global economy. As worries about a potential double-dip recession intensified, market participants became increasingly confident about the prospects of a second round of quantitative easing in the U.S., purchasing Treasuries with the intention of selling them back to the Federal Reserve at a higher price, and buying up risky assets in anticipation of an influx of liquidity.

IV. Return vs. Benchmark:

For the year ended September 30, 2010, the Tax-Managed Managed Volatility Fund, Class A, outperformed the Russell 3000 Index (the “Index”), returning 15.17% versus the Index return of 10.96%.

V. Fund Attribution

For the fiscal year, the Fund successfully achieved its primary objective of lowering volatility, with the realized annualized standard deviation of 15.1% (daily frequency), compared to the Index’s results of 19.7%, constituting a 23% relative reduction.

With high-beta names lagging the broad market, the Fund benefited from its low-volatility profile. Amid range-bound markets, the Fund was able to provide downside protection, preserving more capital that allowed further compounding of returns during the positive months.

Industry positioning was also beneficial. In particular, the Fund’s strong underweight to the Diversified Financials industry added 1.45% at the total portfolio level, as worries about increased capital requirements, further write-downs and regulatory concerns drove big banking shares down. Underweighting Energy in an environment of stalling oil prices and broader repercussions of BP’s oil spill added another 0.43%. Overweighting the Food, Beverage and Tobacco industry was also helpful, as the industry proved to be more resilient during periods of increased uncertainty over future economic growth. The effects were partially mitigated by underweight to Capital Goods, as the industry continued improving on the back of increased overseas demand and a recovery in domestic business activity.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 15

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Tax-Managed Managed Volatility Fund (Concluded)

Tax-Managed Managed Volatility Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized Inception to Date
Tax-Managed Managed Volatility Fund, Class A		15.17%		(1.50)%

Comparison of Change in the Value of a $100,000 Investment in the Tax-Managed Managed Volatility Fund, Class A versus the Russell 3000 Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Fund shares were offered beginning 12/20/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

16 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Real Estate Fund

I. Objective

The Real Estate Fund (the “Fund”) seeks to provide total return, including current income and capital appreciation.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Security Capital Research and Management Inc. and Wellington Management Company, LLP. No manager changes were made during the fiscal year.

III. Market Commentary

The markets gained 13.35% for the year ended September 30, 2010, as measured by the Russell 2000 Index. Small-cap stocks, which had gained 33% in the prior twelve months, wrestled with a market driven by macroeconomic factors and accompanied by high correlations and volatility. Gains established in the latter portion of calendar year 2009 and in the first few months of 2010 were punctuated by steep declines in late January and early May, but the market returned to its October 2009 levels by July. Volatility continued through the summer, and in September the market rallied once again, as concerns over a double-dip recession subsided. The month of September provided nearly all of the gains realized over the fiscal year.

Real estate securities performed well over the period, as investors searched for yield, with the Wilshire Real Estate Securities Index (the “Index”) returning 30.02%. The upward movement in this area was more consistent through the year as compared to the broader market.

From a factor perspective, value and growth stocks tracked closely through the period until September, when growth outperformed value by more than 3%. Small-cap stocks outperformed their large-cap counterparts by a few percentage points, but most of the divergence came in September. Momentum became a positive factor through the period, but many quantitative investors had difficulty with the severe inflection points caused by market volatility.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Real Estate Fund, Class A, underperformed the Index, returning 27.37% versus the Index return of 30.02%.

V. Fund Attribution

The Fund was advantageously positioned from an industry allocation standpoint, but struggled with stock selection. The Fund benefited from its overweight to Apartments, as well the managers’ security choices. Industrials also contributed nicely, as stock-picking more than offset a headwind from the underweight position. The Office segment was the largest performance detractor, as weak stock picks more than offset the benefit of being underweight in this area.

Real Estate Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized Inception to Date
Real Estate Fund, Class A		27.37%		(9.04)%		0.70%		7.32%
Real Estate Fund, Class I		27.12%		(9.23)%		0.47%		7.07%

Comparison of Change in the Value of a $100,000 Investment in the Real Estate Fund, Class A and Class I, versus the Wilshire U.S. Real Estate Securities Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 10/01/07 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I Shares. Class A Shares were offered beginning 11/13/03 and Class I Shares were offered beginning 10/01/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 17

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Enhanced Income Fund

I. Objective

Using multiple sub-advisers, the Enhanced Income Fund (the “Fund”) seeks to provide an enhanced return above 3-month LIBOR (London InterBank Offering Rate).

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with different investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Ares Management LLC and Wellington Management Company, LLP. During the fiscal year, UBS Global Asset Management (Americas) Inc. was terminated.

III. Market Commentary

The fixed income market conditions for the year ended September 30, 2010 reflected a dramatic recovery from the crisis conditions of 2008 and the post Lehman bankruptcy. The period was characterized by an increased investor appetite for risk that drove powerful rallies in most of the non-Treasury sectors of the market. The catalyst for the market recovery was a series of government programs designed to improve credit availability. These programs included the Term Asset-backed Lending Facility (“TALF”), the Public Private Investment Program (“PPIP”) and a $1.25 trillion purchase program of agency mortgage-backed securities (“MBS”) by the U.S. Federal Reserve (the “Fed”). The Fed’s purchase program brought MBS spreads and mortgage rates to historic lows. The TALF and PPIP programs helped drive strong performance in the non-agency MBS market, commercial MBS market, and the asset-backed securities market. The corporate market was supported by a stabilizing economic condition, lower default rates and improved market liquidity. The strong market recovery was interrupted in the spring of 2010 as the European sovereign credit crisis triggered a modest flight to quality that served to bring Treasury yields back to the lower end of their trading range. News surrounding financial reform legislation, the housing sector, and unemployment continued to weigh on the economy. In response, the Federal Reserve signaled further quantitative easing in September to help stimulate the economy, which led Treasury yields even lower.

Despite this more recent market caution, rallies in the non-Treasury sectors provided very strong performance for the fixed income markets for the fiscal year.

IV . Return vs. Benchmark

For the year ended September 30, 2010, the Enhanced Income Fund, Class A, outperformed BofA Merrill Lynch 3-month Constant Maturity LIBOR Index (the “Index”), returning 6.78% versus the Index return of 0.34%.

V. Fund Attribution

During the fiscal year, the Fund’s exposure to non-agency MBS, commercial MBS, investment-grade corporate securities, and bank loans were the key drivers of the performance. Treasury futures were utilized to efficiently assist in managing the Fund’s duration and yield curve exposure. The implementation of PPIP restored confidence in the non-agency MBS market thereby allowing private capital to flow back into the securitized markets. In addition, the sector continued to experience price momentum as a result of the stabilizing collateral performance, the negative net supply, and the relatively attractive loss-adjusted yields. Commercial MBS also benefited from the favorable technical environment although the economic conditions remained uncertain. The investment grade corporate positions, especially financials, also helped performance. The steep yield curve combined with improved access to the capital markets allowed the largest of the U.S. banking institutions to repair their balance sheets and return to profitability throughout the year. Corporate issuance was very robust as issuers took the opportunity to issue paper as interest rates were at historic lows. Bank loans delivered strong performance for the period, as the fundamental credit conditions and market liquidity significantly improved. According to Moody’s, the default rate (by principal amount) of bank loans peaked in Nov 2009 at 14.9%, and since then fell to 3.99% by the end of the fiscal year-end. It is expected to drop further as companies continue to report better financial results, including improving cash flow growth.

18 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Enhanced Income Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized Inception to Date
Enhanced Income Fund, Class A		6.78%		(5.43)%		(3.01)%
Enhanced Income Fund, Class I		6.35%		(5.70)%		(3.39)%

Comparison of Change in the Value of a $100,000 Investment in the Enhanced Income Fund, Class A and Class I, versus the BofA Merrill Lynch 3-Month Constant Maturity LIBOR Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 6/29/07 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 7/27/06 and Class I Shares were offered beginning 6/29/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 19

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Core Fixed Income Fund

I. Objective

The Core Fixed Income Fund (the “Fund”) seeks to provide current income consistent with the preservation of capital. The Fund’s investment strategy focuses on sector rotation, both among and within sectors, and issue selection. Risk is principally controlled by explicitly limiting the Fund’s interest rate exposure relative to the Barclays Capital U.S. Aggregate Bond Index (the “Index”). The Fund’s sub-advisers focus on four key areas in determining portfolio structure: duration weighting, term structure, sector allocation, and issue selection. While the duration and term structure decision underlie the implementation process, the sub-advisers primarily concentrate on sector and issue selection to add value. In addition, the sub-advisers may use derivatives for tactical hedging purposes and to implement portfolio strategies more efficiently.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio, under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Jennison Associates LLC, J.P. Morgan Investment Management, Inc., Metropolitan West Asset Management LLC, Wells Capital Management, Inc., Western Asset Management Company and Western Asset Management Company Limited. Jennison Associates LLC was added during the fiscal year.

III. Market Commentary

The fixed income market conditions for the fiscal year ended September 30, 2010 reflected a dramatic recovery from the crisis conditions of 2008 and the post Lehman bankruptcy. The period was characterized by an increased investor appetite for risk that drove powerful rallies in most of the non-Treasury sectors of the market. The catalyst for the market recovery was a series of government programs designed to improve credit availability. These programs included the Term Asset-backed Lending Facility (“TALF”), the Public Private Investment Program (“PPIP”) and a $1.25 trillion purchase program of agency mortgage-backed securities (“MBS”) by the U.S. Federal Reserve (the “Fed”). The Fed’s purchase program brought MBS spreads and mortgage rates to historic lows. The TALF and PPIP

programs helped drive strong performance in the non-agency MBS market, including commercial MBS, and the asset-backed securities market. The corporate market was supported by a stabilizing economic condition, improving corporate fundamentals, and better market liquidity. The strong market recovery was interrupted in the spring of 2010 as the European sovereign credit crisis triggered a flight to quality that served to bring Treasury yields back to the lower end of their trading range. News surrounding financial reform legislation, the housing sector, and unemployment continued to weigh on the economy. In addition, the Federal Reserve signaled further quantitative easing in September to help stimulate the economy, which led Treasury yields even lower. Despite the decline, rallies in the non-Treasury sectors provided very strong performance for the fixed income markets for the fiscal year.

IV. Return vs. Benchmark

For year ended September 30, 2010 the Core Fixed Income Fund, Class A, outperformed the Barclays Capital U.S. Aggregate Bond Index (the “Index), returning 14.25% versus the Index return of 8.16%.

V. Fund Attribution

The Fund’s overweight position in Corporate Bonds, Non-Agency MBS and Commercial Mortgage Backed Securities were the key drivers of performance. In addition, the Fund entered the year with a positive bias towards Agency MBS due to the Federal Reserve’s purchase program, but as prices relative to treasuries continued to climb, managers moved to an increasingly underweight position. As the Fed discontinued these purchases, prices relative to treasuries weakened modestly and the Fund gradually added exposure toward the end of the measurement period. Duration exposure did not have a meaningful impact on performance as managers chose to utilize their risk budgets on securities within the non-treasury sectors. Treasury futures were utilized to efficiently assist in managing the Fund’s duration and yield curve exposure. Specifically in the fund, an overweight to Corporate Bonds, especially large cap Financials, generated significant outperformance relative to treasuries. The steep yield curve combined with improved access to the capital markets allowed the largest of the U.S. banking institutions to repair their balance sheets and return to

20 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

profitability throughout the year. The Fund utilized credit default swaps to synthetically and efficiently gain exposure to specific corporate issuers. Credit default swaps were also used to buy credit protection on specific companies in order to moderately hedge the portfolio’s broad corporate exposure. A tactical allocation to high yield bonds also helped as expected default rates continued to decline. Non-Agency mortgages recovered dramatically as the forced selling resulting from ratings downgrades and the unwinding of large levered positions abated. The implementation of PPIP restored confidence in the market thereby allowing private capital to flow back into the securitized markets. In addition, the sector continued to experience price improvement as a result of principal paydowns and negative net supply. The Fund did modestly use credit default swaps to synthetically gain exposure to a basket of non-agency mortgage backed securities. Finally the Fund’s overweight to the Commercial MBS market contributed to performance, as Commercial MBS posted the largest outperformance versus treasuries of any sector within the Barclay’s Aggregate index. The Fund bought credit protection via credit default swaps on a basket of commercial mortgage backed securities, which assisted in partially hedging systematic risk associated with the portfolio’s Commercial MBA exposure. Looking forward, although economic conditions remain uncertain, the portfolio offers attractive value. Given a large portion of the capital appreciation versus treasuries has been captured, the Fund is unlikely to experience the same absolute or relative performance in the year ahead as it did in the current period . However, the yield advantage of the Fund should provide investors with a buffer against a possible rise in interest rates in the upcoming year.

Core Fixed Income Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
Core Fixed Income Fund, Class A		14.25%		7.55%		6.04%		6.26%		6.96%
Core Fixed Income Fund, Class I		14.01%		7.28%		5.79%		5.98%		6.52%

Comparison of Change in the Value of a $100,000 Investment in the Core Fixed Income Fund, Class A and Class I, versus the Barclays Capital U.S. Aggregate Bond Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 8/6/01 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I shareholders. Class A Shares were offered beginning 5/1/87 and Class I Shares were offered beginning 8/6/01. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 21

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

U.S. Fixed Income Fund

I. Objective

The U.S. Fixed Income Fund (the “Fund”) seeks to provide current income consistent with the preservation of capital. The Fund’s investment strategy focuses on sector rotation, both among and within sectors, and issue selection. Risk is principally controlled by explicitly limiting the Fund’s interest rate exposure relative to the Barclays Capital U.S. Aggregate Bond Index (the “Index”). The Fund’s sub-advisers focus on four key areas in determining portfolio structure: duration weighting, term structure, sector allocation, and issue selection. While the duration and term structure decision underlie the implementation process, the sub-advisers primarily concentrate on sector and issue selection to add value. In addition, the sub-advisers may use derivatives for tactical hedging purposes and to implement portfolio strategies more efficiently.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio, under the general supervision of SEI Investments Management Corp. The Fund utilized the following sub-advisers as of September 30, 2010: Jennison Associates LLC, J.P. Morgan Investment Management, Inc., Metropolitan West Asset Management LLC, Wells Capital Management, Inc., Western Asset Management Company and Western Asset Management Company Limited. Jennison Associates LLC was added during the fiscal year.

III. Market Commentary

The fixed income market conditions for the year ended September 30, 2010 reflected a dramatic recovery from the crisis conditions of 2008 and the post Lehman bankruptcy. The period was characterized by an increased investor appetite for risk that drove powerful rallies in most of the non-Treasury sectors of the market. The catalyst for the market recovery was a series of government programs designed to improve credit availability. These programs included the Term Asset-backed Lending Facility (“TALF”), the Public Private Investment Program (“PPIP”) and a $1.25 trillion purchase program of agency mortgage-backed securities (“MBS”) by the U.S. Federal Reserve (the “Fed”). The Fed’s purchase program brought MBS spreads and mortgage rates to historic lows. The TALF and PPIP programs helped drive strong performance in the non-agency MBS market, including

commercial MBS, and the asset-backed securities market. The corporate market was supported by a stabilizing economic condition, improving corporate fundamentals, and better market liquidity. The strong market recovery was interrupted in the spring of 2010 as the European sovereign credit crisis triggered a flight to quality that served to bring Treasury yields back to the lower end of their trading range. News surrounding financial reform legislation, the housing sector, and unemployment continued to weigh on the economy. In addition, the Federal Reserve signaled further quantitative easing in September to help stimulate the economy, which led Treasury yields even lower. Despite the decline, rallies in the non-Treasury sectors provided very strong performance for the fixed income markets for the fiscal year.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the U.S. Fixed Income Fund, Class A, outperformed the Index, returning 9.22% versus the Index return of 8.16%.

V. Fund Attribution

The Fund’s overweight position in corporate bonds, non-agency MBS and commercial MBS were the key drivers of performance. In addition, the Fund entered the year with a positive bias towards agency MBS due to the Federal Reserve’s purchase program, but as prices relative to treasuries continued to climb, managers moved to reduce their allocation. As the Fed discontinued these purchases, prices relative to treasuries weakened modestly and the Fund gradually added exposure toward the end of the measurement period. Duration exposure did not have a meaningful impact on performance as managers chose to utilize their risk budgets on securities within the non-treasury sectors. Treasury futures were utilized to efficiently assist in managing the Fund’s duration and yield curve exposure. Specifically in the fund, an overweight to Corporate Bonds, especially large cap Financials, generated significant outperformance relative to treasuries. The steep yield curve combined with improved access to the capital markets allowed the largest of the U.S. banking institutions to repair their balance sheets and return to profitability throughout the year. Non-Agency mortgages recovered dramatically as the forced selling resulting from ratings downgrades and the unwinding of large levered positions abated. The implementation of PPIP restored confidence in the market thereby allowing private capital to flow back

22 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

into the securitized markets. In addition, the sector continued to experience price improvement as a result of principal paydowns and negative net supply. Finally the Fund’s overweight to the commercial MBS market contributed to performance, as commercial MBS posted the largest outperformance versus treasuries of any sector within the Index. The Fund bought credit protection by utilizing credit default swaps on a basket of commercial mortgage backed securities, which assisted in partially hedging systematic risk associated with the portfolio’s commercial MBS exposure. Looking forward, although economic conditions remain uncertain, the portfolio offers attractive value. Given a large portion of the capital appreciation versus treasuries has been captured, the Fund is unlikely to experience the same absolute or relative performance in the year ahead as it did in the current period . However, the yield advantage of the Fund should provide investors with a buffer against a possible rise in interest rates in the upcoming year.

U.S. Fixed Income Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized Inception to Date
U.S. Fixed Income Fund, Class A		9.22%		10.40%

Comparison of Change in the Value of a $100,000 Investment in the U.S. Fixed Income Fund, Class A and Class I, versus the Barclays Capital U.S. Aggregate Bond Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class A shares were offered beginning 7/2/09. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 23

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

High Yield Bond Fund

I. Objective

The High Yield Bond Fund (the “Fund”) seeks to maximize total return.

II. Multi-Manager Approach Statement

The Fund uses a multi-manager approach, relying on a number of sub-advisers with differing investment approaches to manage portions of the Fund’s portfolio under the general supervision of SEI Investments Management Corp (“SIMC”). The Fund utilized the following sub-advisers as of September 30, 2010: Ares Management LLC, Brigade Capital Management, LLC, Delaware Management Company, Guggenheim Investment Management, LLC and J.P. Morgan Investment Management, Inc. No manager changes were made during the fiscal year.

III. Market Commentary

For the year ended September 30, 2010, the high-yield market, as measured by the BofA Merrill Lynch U.S. High Yield Master II Constrained Index (the “Index”), returned 18.38%. This strong return for the fiscal year followed a record calendar-year return of 58.10% in 2009, further confirming the movement of investors away from risk aversion. Returns were broad-based, with only one of the 72 Index sub-sectors generating a negative return for the fiscal year. Credit-quality spreads tightened 190 basis points to finish the period at 605 basis points, down 1,563 basis points from the peak of 2,168 basis points reached in December 2008. With the improved liquidity in the market, high-yield issuers came to market with record amounts of issuance, primarily for refinancing purposes, which was well-received by investors. Mutual fund cash flows were at or above record paces, except for two brief periods in February 2010 and May 2010 because of risk avoidance during the sovereign debt crisis. Ample access to capital markets, combined with improved operations, enabled the Moody’s global high-yield issuer default rate to decline to 3.99% by the end of September, down from 14.06% at the beginning of the reporting period. With U.S. Treasury yields near record lows and an increase in investor risk appetite, CCC-rated securities generated the highest returns at 24.88%, followed by BBs at 17.94% and Bs at 15.46%.

The best-performing sector, on a contribution-to-return basis, was the Basic Industry sector, which returned 17.57%. On an absolute-return

basis, financial-related sectors produced the highest returns, as credit conditions improved and the fear of insolvency dissipated. The Insurance sector produced the highest sector return, returning 45.08%. The worst-performing sector on a contribution-to-return basis was the Utility sector, which returned 7.92%, as regulatory and economic growth concerns weighed on the sector.

IV. Return vs. Benchmark:

For the year ended September 30, 2010, the High Yield Bond Fund, Class A, outperformed the BofA Merrill Lynch U.S. High Yield Master II Constrained Index (the “Index”), returning 21.98% versus the Index return of 18.38%.

V. Fund Attribution

A major contributor for the Fund during the period was the Fund’s allocation to Structured Credit (collateralized loan obligations), which rebounded from sharply distressed levels, given the improved fundamentals and ample access to capital markets for many loan issuers. Declining default rates and increased investor risk appetite also served as a tailwind for leveraged finance investments, including both loans and bonds. Security selection in the Services sector enhanced performance, particularly to the underperforming building and construction issuers that struggled with the sluggish housing market. Within the Financial Services sector, an overweight to Nuveen Investments, which outperformed due to improved operations, added to returns. An underweight to First Data, which underperformed due to declining credit and debit card usage, benefited returns. With the outperformance of CCC-rated securities, the Fund’s overweight was helpful.

Detracting from performance was the Fund’s underweight to the Insurance sector, particularly AIG. The worst fears of insolvency for AIG abated and, combined with improved financial market performance, enabled the company to begin a successful restructuring, propelling its bond prices higher. An underweight to the Banking sector, which also produced strong returns, subtracted form performance. Liquid capital markets, along with steep yield curves, buffered bank earnings. This reversed the negative tone that pushed several of these investment-grade companies into the high-yield universe in the prior year. Security selection in the Energy sector,

24 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

especially in ethanol producer Aventine Renewable Energy, diminished returns. An overweight to B-rated issuers, which underperformed, also served as a slight drag on relative performance.

High Yield Bond Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized 3 Year Return		Annualized 5 Year Return		Annualized 10 Year Return		Annualized Inception to Date
High Yield Bond Fund, Class A		21.98%		6.26%		6.40%		6.86%		7.40%
High Yield Bond Fund, Class I		21.76%		6.08%		6.25%		6.73%		7.28%

Comparison of Change in the Value of a $100,000 Investment in the High Yield Bond Fund, Class A and Class I, versus the BofA Merrill Lynch U.S. High Yield Master II Constrained Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class I Shares performance for the period prior to 10/01/07 is performance derived from the performance of the Class A Shares. The performance of Class I Shares may be lower than the performance of Class A Shares because of different distribution fees paid by Class I Shares. Class A Shares were offered beginning 1/11/95 and Class I Shares were offered beginning 10/01/07. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect fee waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 25

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Real Return Fund

I. Objective

The Real Return Fund’s (the “Fund”) objective is to provide return characteristics similar to Treasury Inflation Protected Securities (“TIPS”) with a maturity range of 1 to 5 years.

II. Multi-Manage Approach Statement

The Fund currently relies on a single sub-advisor to manage the Fund’s portfolio under the general supervision of SEI Investments Management Corp. The Fund utilizes the following sub-adviser as of September 30, 2010: Wellington Management Company, LLP. No manager changes were made during the fiscal year.

III. Market Commentary

The fixed income market conditions for the fiscal year ended September 30, 2010 reflected a dramatic recovery from the crisis conditions of 2008 and the post Lehman bankruptcy. The period was characterized by an increased investor appetite for risk that drove powerful rallies in most of the non-Treasury sectors of the market. The catalyst for the market recovery was a series of government programs designed to improve credit availability. These programs included the Term Asset-backed Lending Facility (“TALF”), the Public Private Investment Program (“PPIP”) and a $1.25 trillion purchase program of agency mortgage-backed securities (“MBS”) by the U.S. Federal Reserve (the “Fed”). The Fed’s purchase program brought MBS spreads and mortgage rates to historic lows. The TALF and PPIP programs helped drive strong performance in the non-agency MBS market, including commercial MBS, and the asset-backed securities market. The corporate market was supported by a stabilizing economic condition, improving corporate fundamentals, and better market liquidity. The strong market recovery was interrupted in the spring of 2010 as the European sovereign credit crisis triggered a flight to quality that served to bring Treasury yields back to the lower end of their trading range. News surrounding financial reform legislation, the housing sector, and unemployment continued to weigh on the economy. In addition, the Federal Reserve signaled further quantitative easing in September to help stimulate the economy, which led Treasury yields even lower. Despite the decline, the rally in TIPS and higher long-term inflation expectations provided strong performance for the fiscal year.

IV. Return vs. Benchmark

For the year ended September 30, 2010, the Fund underperformed the Barclays 1-5 Year U.S. TIPS Index (the “Index”) returning 5.20% versus the Index return of 5.26%.

V. Fund Attribution

Tactical and timely allocation to nominal Treasuries helped the Fund’s performance due to the decline in Treasury yields during the year. The Fund’s yield curve positioning favoring longer dated TIPS was a positive contributor. In addition, the drop in TIPS yields served to support the absolute return of the Fund. Treasury futures were utilized to efficiently assist in managing the Fund’s duration, yield curve, and Treasury exposure.

Real Return Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	One Year Return		Annualized Inception to Date
Real Return Fund, Class A		5.20%		5.75%

Comparison of Change in the Value of a $100,000 Investment in the Real Return Fund, Class A, versus the Barclays 1-5 Year U.S. TIPS Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class A shares were offered beginning 7/2/09. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for certain periods reflect for waivers and/or reimbursements in effect for that period; absent fee waivers and reimbursements, performance would have been lower.

26 SEI Institutional Managed Trust / Annual Report / September 30, 2010

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FUND PERFORMANCE

SEI INSTITUTIONAL MANAGED TRUST — SEPTEMBER 30, 2010

Multi-Strategy Alternative Fund

I. Objective

The Multi-Strategy Alternative Fund (the “Fund”) allocates its assets among a variety of investment strategies to seek to generate an absolute return with reduced correlation to the stock and bond markets.

II. Multi-Manager Approach Statement

The Fund uses a fund-of-funds approach, investing in a number of funds managed by different sub-advisors with differing investment approaches. The fund selection and portfolio construction are conducted by SEI Investments Management Corp.

The Multi-Strategy Alternative Fund had investments in the following 11 funds as of September 30, 2010: Aberdeen Equity Long Short Fund, Institutional Class (GGUIX), AQR Diversified Arbitrage Fund, Class I (ADAIX), AQR Managed Futures Strategy Fund, Class I (AQMIX), Driehaus Active Income Fund (LCMAX), DWS Disciplined Market Neutral Fund, Institutional Class (DDMAX), Eaton Vance Global Macro Absolute Return Fund, Class I (EIGMX), JPMorgan Research Market Neutral Fund, Institutional Class (JPMNX), Managers AMG FW Alternative Fund, Institutional Class (MGAIX), Merger Fund (MERFX), TFS Market Neutral Fund (TFSMX) and Turner Spectrum Fund, Institutional Class (TSPEX).

From the Funds inception on March 31, 2010 through the Fund’s fiscal year end on September 30, 2010, Turner Spectrum Fund, Institutional Class and AQR Managed Futures Strategy Fund, Class I, were added to the Fund, while Rydex Managed Futures Fund and Highbridge Statistical Market Neutral Select Fund were terminated.

III. Market Commentary

Markets were highly volatile during the first six months of the Fund’s inception. The second quarter saw a significant sell-off in risk assets, while the third quarter reversed those losses as most risk assets rallied strongly. Fears of sovereign defaults and the slowing pace of economic recovery drove markets down during the second quarter. In the third quarter, abatement of those concerns, combined with the prospect of continued dovish action by the U.S. Federal Reserve in the form of further quantitative easing, caused risk assets to rally. Throughout this volatility, the Fund achieved its main objective to protect investor capital, experiencing only a modest drawdown during the second quarter. However, the recovery during the third quarter was not as robust as had been hoped, as the choppy market conditions presented challenges for several investment strategies.

IV. Return vs. Benchmark

For the six-month period ended September 30, 2010, the Multi-Strategy Alternative Fund, Class A, underperformed the BofA Merrill Lynch 3-Month U.S Treasury Bill Index (the “Index), returning (0.70)% versus 0.13% for the Index.

V. Fund Attribution

The largest contributor to Fund returns was the Long/Short Equity strategy, followed by Multi-Strategy Arbitrage. Merger Arbitrage delivered a small gain. Losses came from the Tactical Trading and Market-Neutral Equity strategies. The environment proved challenging for tactical managers, as the market oscillated between pessimism and enthusiasm. Market-Neutral managers, which rely on capturing relative stock performance, also struggled, as equity prices were driven by broad macroeconomic concerns rather than stock-specific data.

Multi-Strategy Alternative Fund:

AVERAGE ANNUAL TOTAL RETURN¹

	Since Inception
Multi-Strategy Alternative Fund, Class A		(0.70)%

Comparison of Change in the Value of a $10,000 Investment in the Multi-Strategy Alternative Fund, Class A, versus the BofA Merrill Lynch 3-Month U.S. Treasury Bill Index

¹ For the period ended 9/30/10. Past performance is no indication of future performance. Class A shares were offered beginning 3/31/10. Returns shown do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. The returns for the period reflect fee waivers and/or reimbursements in effect for the period; absent fee waivers and reimbursements, performance would have been lower.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 27

SUMMARY SCHEDULE OF INVESTMENTS

Large Cap Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 96.4%
Consumer Discretionary — 11.8%
Amazon.com*		1.2	%		106,740	$	16,764
Comcast, Cl A		0.5			367,186		6,639
Nike, Cl B (A)		0.5			87,900		7,044
priceline.com*		0.6			26,135		9,104
Time Warner		1.0			474,704		14,550
Other Securities		8.0					110,236
							164,337
Consumer Staples — 8.7%
Coca-Cola		0.7			179,395		10,498
PepsiCo		0.7			139,190		9,248
Philip Morris International		0.5			134,229		7,520
Procter & Gamble		1.7			387,679		23,249
Walgreen		0.5			211,605		7,089
Wal-Mart Stores		0.5			125,372		6,710
Other Securities		4.1					56,865
							121,179
Energy — 8.6%
Chevron		1.6			283,069		22,943
ConocoPhillips		1.1			278,447		15,991
Exxon Mobil		0.8			176,724		10,920
Transocean*		0.5			117,200		7,535
Other Securities		4.6					63,122
							120,511
Financials — 15.0%
American Express		0.7			228,800		9,617
Bank of America		1.1			1,175,212		15,407
Berkshire Hathaway, Cl B*		0.6			106,700		8,822
Citigroup*		0.8			2,726,500		10,633
Goldman Sachs Group		1.0			100,265		14,496
JPMorgan Chase		1.5			565,585		21,532
PNC Financial Services Group		0.6			155,809		8,088

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Wells Fargo		1.2	%		664,100	$	16,689
Other Securities		7.5					103,666
							208,950
Health Care — 13.2%
Abbott Laboratories		0.5			140,706		7,351
Allergan		0.7			135,417		9,009
Amgen*		1.1			276,647		15,246
Johnson & Johnson		1.3			287,939		17,841
Medco Health Solutions*		0.5			133,300		6,940
Medtronic		0.6			249,100		8,365
Merck		0.7			252,182		9,283
Pfizer		1.1			884,763		15,191
UnitedHealth Group		1.0			389,983		13,692
Other Securities		5.7					81,841
							184,759
Industrials — 9.1%
3M (A)		0.8			136,672		11,851
General Electric		1.3			1,080,501		17,558
United Technologies		0.5			103,057		7,341
Other Securities		6.5					90,631
							127,381
Information Technology — 20.6%
Apple*		2.7			131,135		37,210
Cisco Systems*		1.3			815,772		17,865
Citrix Systems*		0.5			103,903		7,090
EMC* (A)		0.8			587,613		11,934
Intel		0.6			428,964		8,249
International Business Machines		1.1			114,133		15,310
Intuit*		0.5			158,200		6,931
Microsoft		1.9			1,071,454		26,240
Oracle		0.6			294,940		7,919
Qualcomm		1.1			329,600		14,872
Texas Instruments (A)		1.0			505,000		13,706
Visa, Cl A		0.8			158,207		11,748
Other Securities		7.7					108,037
							287,111
Materials — 3.0%
Other Securities		3.0					41,653
Telecommunication Services — 3.4%
AT&T		1.5			711,170		20,340
Verizon Communications		0.7			306,671		9,994
Other Securities		1.2					16,820
							47,154

28 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Utilities — 3.0%
Exelon		0.6	%		206,972	$	8,812
Other Securities		2.4					32,983
							41,795
Total Common Stock (Cost $1,262,806) ($ Thousands)							1,344,830
AFFILIATED PARTNERSHIP — 7.0%
SEI Liquidity Fund, L.P. 0.230%**† (B)		7.0			97,897,411		97,897
Total Affiliated Partnership (Cost $97,897) ($ Thousands)							97,897
CASH EQUIVALENT — 3.1%
SEI Daily Income Trust, Prime Obligation Fund, Cl A 0.150%**†		3.1			42,847,864		42,848
Total Cash Equivalent (Cost $42,848) ($ Thousands)							42,848
U.S. TREASURY OBLIGATION (C) — 0.3%
Other Securities		0.3					4,680
Total U.S. Treasury Obligation (Cost $4,679) ($ Thousands)							4,680
Total Investments — 106.8% (Cost $1,408,230) ($ Thousands)						$	1,490,255

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index EMINI		47		Dec-2010	$	49
S&P Composite Index		104		Dec-2010		651
S&P Mid 400 Index E-MINI		60		Dec-2010		190
					$	890

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,395,899 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $94,814 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $97,897 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,344,830	$	—	$	—	$	1,344,830
Affiliated Partnership		—		97,897		—		97,897
Cash Equivalent		42,848		—		—		42,848
U.S. Treasury Obligation		—		4,680		—		4,680
Total Investments in Securities	$	1,387,678	$	102,577	$	—	$	1,490,255

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	890	$	—	$	—	$	890

* Futures contracts are valued at unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 29

SUMMARY SCHEDULE OF INVESTMENTS

Large Cap Value Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 98.1%‡
Consumer Discretionary — 7.4%
Comcast, Cl A		1.2	%		1,001,400	$	17,752
Time Warner		0.6			308,933		9,469
Viacom, Cl B		0.4			171,400		6,203
Walt Disney		0.6			274,000		9,072
Other Securities		4.6					69,399
							111,895
Consumer Staples — 9.8%
Coca-Cola		0.4			104,300		6,104
CVS Caremark		0.9			429,100		13,504
PepsiCo		0.5			109,800		7,295
Procter & Gamble		2.1			517,500		31,035
Wal-Mart Stores		1.0			283,700		15,184
Other Securities		4.9					74,797
							147,919
Energy — 11.8%
Apache (A)		0.7			113,700		11,115
Chevron		3.2			600,800		48,695
ConocoPhillips		1.6			426,086		24,470
Devon Energy		0.4			99,800		6,461
Exxon Mobil		1.0			245,294		15,157
Marathon Oil		0.6			277,700		9,192
Occidental Petroleum		1.0			193,600		15,159
Other Securities		3.3					48,776
							179,025
Financials — 25.5%
Allstate		0.4			216,200		6,821
Ameriprise Financial (A)		0.4			128,900		6,101
Bank of America		2.1			2,482,269		32,543
Bank of New York Mellon		0.5			306,422		8,007
Berkshire Hathaway, Cl B*		1.5			272,600		22,539
Chubb		0.6			148,400		8,457
Citigroup*		1.0			3,809,800		14,858
Everest Re Group		0.5			81,800		7,073
Goldman Sachs Group		1.2			121,000		17,494

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
JPMorgan Chase		2.7	%		1,087,400	$	41,397
MetLife (A)		0.4			162,200		6,237
Morgan Stanley		0.4			269,900		6,661
PNC Financial Services Group		0.7			210,455		10,925
Prudential Financial		0.5			136,700		7,406
Travelers (A)		0.8			224,900		11,717
US Bancorp		0.5			316,300		6,838
Wells Fargo		2.1			1,255,395		31,548
Other Securities		9.2					139,270
							385,892
Health Care — 14.8%
Amgen*		1.2			319,400		17,602
Eli Lilly		0.4			178,700		6,528
Johnson & Johnson		2.0			487,600		30,212
Merck		1.6			667,057		24,554
Pfizer		3.0			2,639,398		45,319
UnitedHealth Group		0.9			398,100		13,977
WellPoint*		0.8			220,300		12,478
Other Securities		4.9					73,753
							224,423
Industrials — 8.4%
General Dynamics		0.7			155,100		9,742
General Electric		2.5			2,334,600		37,937
Northrop Grumman		0.6			145,900		8,846
Raytheon		0.6			199,100		9,101
Other Securities		4.0					60,901
							126,527
Information Technology — 6.2%
Intel		0.8			593,100		11,405
Microsoft		1.5			929,200		22,756
Texas Instruments		0.5			258,500		7,016
Other Securities		3.4					52,571
							93,748
Materials — 3.2%
Other Securities		3.2					48,604
Telecommunication Services — 5.2%
AT&T		3.4			1,794,095		51,311
Verizon Communications (A)		1.1			524,100		17,080
Other Securities		0.7					10,531
							78,922
Utilities — 5.8%
American Electric Power		0.6			259,400		9,398
Other Securities		5.2					78,766
							88,164
Total Common Stock (Cost $1,389,684) ($ Thousands)							1,485,119

30 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 8.5%
SEI Liquidity Fund, L.P. 0.230% (B)**†		8.5	%		134,650,092	$	129,626
Total Affiliated Partnership (Cost $134,650) ($ Thousands)							129,626
CASH EQUIVALENT — 1.9%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		1.9			28,513,155		28,513
Total Cash Equivalent (Cost $28,513) ($ Thousands)							28,513
U.S. TREASURY OBLIGATION (C) — 0.4%
Other Securities		0.4					5,520
Total U.S. Treasury Obligation (Cost $5,519) ($ Thousands)							5,520
Total Investments — 108.9% (Cost $1,558,366) ($ Thousands)						$	1,648,778

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P Composite Index		80		Dec-2010	$	636

For the period ended September 30, 2010, the total number of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,514,440 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $130,963 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $129,626 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,485,119	$	—	$	—	$	1,485,119
Affiliated Partnership		—		129,626		—		129,626
Cash Equivalent		28,513		—		—		28,513
U.S. Treasury Obligation		—		5,520		—		5,520
Total Investments in Securities	$	1,513,632	$	135,146	$	—	$	1,648,778

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	636	$	—	$	—	$	636

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 31

SUMMARY SCHEDULE OF INVESTMENTS

Large Cap Growth Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 92.3%‡
Consumer Discretionary — 13.9%
Amazon.com*		1.3	%		129,216	$	20,295
Lowe’s		0.6			450,916		10,051
McDonald’s		1.1			240,925		17,951
NetFlix* (A)		0.6			57,421		9,311
Nike, Cl B (A)		1.0			207,040		16,592
priceline.com (A)		1.2			57,300		19,960
Staples		0.6			451,700		9,450
Starbucks		0.5			347,326		8,885
Target		0.8			236,747		12,652
Other Securities		6.2					98,890
							224,037
Consumer Staples — 11.3%
Coca-Cola		1.3			358,845		21,000
Kellogg		0.8			257,300		12,996
PepsiCo		1.7			398,391		26,469
Procter & Gamble		1.7			471,306		28,264
Walgreen (A)		0.8			409,877		13,731
Other Securities		5.0					79,341
							181,801
Energy — 5.2%
EOG Resources (A)		0.7			118,500		11,017
Exxon Mobil		0.9			238,600		14,743
Halliburton		0.7			322,910		10,679
Schlumberger		0.6			141,553		8,721
Other Securities		2.3					39,166
							84,326
Financials — 4.5%
American Express		0.9			332,333		13,968
CME Group		0.6			35,855		9,338
Other Securities		3.0					49,628
							72,934

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Health Care — 13.1%
Abbott Laboratories		1.1	%		354,844	$	18,537
Allergan		0.9			220,503		14,670
Johnson & Johnson		1.2			325,578		20,173
Medco Health Solutions*		0.9			269,082		14,008
Medtronic		0.8			396,291		13,308
Other Securities		8.2					129,945
							210,641
Industrials — 9.3%
3M		1.7			309,145		26,806
Boeing		0.8			192,693		12,822
Cummins		0.6			101,662		9,208
United Technologies		1.0			220,031		15,673
Other Securities		5.2					84,695
							149,204
Information Technology — 30.2%
Adobe Systems* (A)		0.6			386,453		10,106
Apple*		4.2			238,955		67,804
Cisco Systems*		2.5			1,814,669		39,741
Citrix Systems*		1.0			235,585		16,076
EMC*		1.2			928,107		18,850
F5 Networks* (A)		0.6			89,900		9,333
Google, Cl A*		1.4			41,116		21,618
Hewlett-Packard		0.6			212,600		8,944
International Business Machines		1.0			120,174		16,120
Intuit*		0.7			254,600		11,154
Mastercard, Cl A		0.7			52,510		11,762
Microsoft		2.4			1,566,969		38,375
NetApp* (A)		0.6			199,405		9,928
Oracle		1.4			854,118		22,933
Qualcomm		1.7			625,595		28,227
Texas Instruments		0.9			515,310		13,985
Visa, Cl A		1.4			299,153		22,215
Other Securities		7.3					119,718
							486,889
Materials — 2.8%
Monsanto (A)		0.6			180,270		8,640
Other Securities		2.2					35,829
							44,469
Telecommunication Services — 1.9%
American Tower, Cl A*		0.8			262,523		13,457
Crown Castle International*		0.9			322,367		14,233
Other Securities		0.2					2,463
							30,153

32 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares/ Face Amount ($ Thousands)		Market Value ($ Thousands)
Utilities — 0.1%
Other Securities		0.1	%			$	1,094
Total Common Stock (Cost $1,190,283) ($ Thousands)							1,485,548
CASH EQUIVALENT — 7.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		7.5			121,376,915		121,377
Total Cash Equivalent (Cost $121,377) ($ Thousands)							121,377
AFFILIATED PARTNERSHIP — 6.2%
SEI Liquidity Fund, L.P. 0.230%**† (B)		6.2			102,417,029		98,938
Total Affiliated Partnership (Cost $102,417) ($ Thousands)							98,938
U.S. TREASURY OBLIGATION (C) (D) — 0.5%
U.S. Treasury Bills, 0.166%, 12/16/2010		0.5		$	8,696		8,694
Total U.S. Treasury Obligation (Cost $8,693) ($ Thousands)							8,694
Total Investments — 106.5% (Cost $1,422,770) ($ Thousands)						$	1,714,557

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P Composite Index		356		Dec-2010	$	1,643

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,610,083 ($Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $99,295 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $98,938 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,485,548	$	—	$	—	$	1,485,548
Cash Equivalent		121,377		—		—		121,377
Affiliated Partnership		—		98,938		—		98,938
U.S. Treasury Obligation		—		8,694		—		8,694
Total Investments in Securities	$	1,606,925	$	107,632	$	—	$	1,714,557

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	1,643	$	—	$	—	$	1,643

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 33

SUMMARY SCHEDULE OF INVESTMENTS

Tax-Managed Large Cap Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 97.5%
Consumer Discretionary — 11.3%
Amazon.com* (A)		1.0	%		94,583	$	14,855
Comcast, Cl A		0.5			441,800		7,988
DIRECTV, Cl A*		0.6			201,007		8,368
McDonald’s		0.6			126,839		9,451
Nike, Cl B (A)		0.5			96,300		7,718
priceline.com* (A)		0.7			28,983		10,096
Time Warner		0.7			341,219		10,458
Other Securities		6.7					105,027
							173,961
Consumer Staples — 9.1%
Coca-Cola		0.9			228,679		13,382
PepsiCo		0.7			154,373		10,257
Procter & Gamble		1.9			495,500		29,715
Walgreen		0.6			251,422		8,423
Wal-Mart Stores		0.5			144,748		7,747
Other Securities		4.5					70,498
							140,022
Energy — 8.8%
Chevron		1.6			304,809		24,705
ConocoPhillips		0.9			240,107		13,789
Exxon Mobil		1.0			248,749		15,370
Other Securities		5.3					81,695
							135,559
Financials — 16.3%
American Express		0.7			244,727		10,286
Bank of America		1.3			1,549,724		20,317
Berkshire Hathaway, Cl B*		0.8			155,800		12,882
Citigroup*		0.8			3,347,900		13,057
Goldman Sachs Group		1.0			101,399		14,660
JPMorgan Chase		1.7			688,107		26,196
Wells Fargo		1.4			841,467		21,146
Other Securities		8.6					132,462
							251,006

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Health Care — 13.3%
Abbott Laboratories		0.6	%		171,458	$	8,957
Allergan		0.6			145,100		9,653
Amgen*		0.8			232,448		12,810
Johnson & Johnson		1.4			354,742		21,980
Medco Health Solutions*		0.5			144,986		7,548
Merck		0.8			334,372		12,308
Pfizer		1.2			1,095,576		18,811
UnitedHealth Group		1.1			462,399		16,235
Other Securities		6.3					95,965
							204,267
Industrials — 9.5%
3M		0.8			148,869		12,908
Boeing (A)		0.5			116,139		7,728
General Electric		1.3			1,227,955		19,954
United Technologies		0.7			146,007		10,400
Other Securities		6.2					94,897
							145,887
Information Technology — 19.5%
Apple*		2.3			126,037		35,763
Cisco Systems*		1.4			964,199		21,116
Citrix Systems* (A)		0.5			121,305		8,278
EMC*		0.8			647,303		13,147
Google, Cl A*		0.6			18,638		9,800
Hewlett-Packard		0.5			191,073		8,038
Intel (A)		0.8			577,736		11,110
International Business Machines		0.8			88,008		11,805
Microsoft		1.5			909,624		22,277
Oracle		0.7			381,802		10,251
Qualcomm		1.1			371,963		16,783
Texas Instruments (A)		1.0			566,700		15,380
Visa, Cl A		0.7			145,514		10,806
Other Securities		6.8					104,410
							298,964
Materials — 2.7%
Other Securities		2.7					41,990
Telecommunication Services — 3.5%
AT&T		1.5			809,646		23,156
Verizon Communications		0.8			350,459		11,421
Other Securities		1.2					19,147
							53,724
Utilities — 3.5%
AES*		0.5			760,450		8,631
Other Securities		3.0					44,638
							53,269
Total Common Stock (Cost $1,258,294) ($ Thousands)							1,498,649

34 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 8.3%
SEI Liquidity Fund, L.P., 0.230%**† (B)		8.3	%		131,826,378	$	127,731
Total Affiliated Partnership (Cost $131,826) ($ Thousands)							127,731
CASH EQUIVALENT — 2.3%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		2.3			35,702,053		35,702
Total Cash Equivalent (Cost $35,702) ($ Thousands)							35,702
U.S. TREASURY OBLIGATION (C) — 0.4%
Other Securities		0.4					6,210
Total U.S. Treasury Obligation (Cost $6,209) ($ Thousands)							6,210
Total Investments — 108.5% (Cost $1,432,031) ($ Thousands)						$	1,668,292

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index EMINI		3		Dec-2010	$	6
S&P Composite Index		101		Dec-2010		556
S&P Mid 400 Index E-MINI		58		Dec-2010		160
					$	722

For the period ended September 30, 2010, the total number of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,537,777 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $127,992 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $127,731 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,498,649	$	—	$	—	$	1,498,649
Affiliated Partnership		—		127,731		—		127,731
Cash Equivalent		35,702		—		—		35,702
U.S. Treasury Obligation		—		6,210		—		6,210
Total Investments in Securities	$	1,534,351	$	133,941	$	—	$	1,668,292

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures*	$	722	$	—	$	—	$	722

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 35

SUMMARY SCHEDULE OF INVESTMENTS

S&P 500 Index Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 97.9%
Consumer Discretionary — 10.2%
Amazon.com*		0.5	%		46,300	$	7,272
Comcast, Cl A		0.5			367,222		6,639
Ford Motor* (A)		0.4			447,580		5,478
Home Depot (A)		0.5			218,696		6,928
McDonald’s		0.7			139,170		10,370
Walt Disney		0.6			250,027		8,278
Other Securities		7.0					96,541
							141,506
Consumer Staples — 11.1%
Altria Group		0.5			271,856		6,530
Coca-Cola		1.3			301,553		17,647
CVS Caremark		0.4			178,835		5,628
Kraft Foods, Cl A		0.5			226,898		7,002
PepsiCo		1.0			207,985		13,819
Philip Morris International		1.0			239,665		13,426
Procter & Gamble		1.6			371,101		22,255
Wal-Mart Stores		1.0			261,544		13,998
Other Securities		3.8					52,619
							152,924
Energy — 10.7%
Chevron		1.5			262,478		21,274
ConocoPhillips		0.8			194,943		11,196
Exxon Mobil		3.0			667,298		41,232
Occidental Petroleum		0.6			105,659		8,273
Schlumberger		0.8			178,843		11,019
Other Securities		4.0					54,961
							147,955
Financials — 15.3%
American Express		0.4			136,815		5,750
Bank of America		1.2			1,311,228		17,190
Berkshire Hathaway, Cl B* (A)		1.4			226,147		18,698
Citigroup*		0.9			3,106,185		12,114
Goldman Sachs Group		0.7			67,456		9,753

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
JPMorgan Chase		1.4	%		519,857	$	19,791
Wells Fargo		1.2			680,963		17,113
Other Securities		8.1					110,434
							210,843
Health Care — 11.4%
Abbott Laboratories		0.8			202,146		10,560
Amgen*		0.5			124,718		6,873
Bristol-Myers Squibb		0.4			225,775		6,121
Johnson & Johnson		1.6			360,282		22,323
Merck		1.1			402,344		14,810
Pfizer		1.3			1,054,176		18,100
Other Securities		5.7					78,839
							157,626
Industrials — 10.5%
3M		0.6			92,782		8,045
Boeing		0.4			95,632		6,363
Caterpillar (A)		0.5			81,897		6,444
General Electric		1.6			1,394,674		22,664
United Parcel Service, Cl B		0.6			128,811		8,590
United Technologies		0.6			121,432		8,650
Other Securities		6.2					84,603
							145,359
Information Technology — 18.5%
Apple*		2.4			119,431		33,888
Cisco Systems*		1.2			746,604		16,351
EMC*		0.4			268,040		5,444
Google, Cl A*		1.2			32,491		17,084
Hewlett-Packard		0.9			296,465		12,472
Intel		1.0			728,315		14,006
International Business Machines		1.6			164,937		22,125
Microsoft		1.8			995,893		24,390
Oracle		1.0			505,988		13,586
Qualcomm		0.7			209,832		9,467
Other Securities		6.3					86,204
							255,017
Materials — 3.5%
Other Securities		3.5					47,779
Telecommunication Services — 3.2%
AT&T		1.6			771,940		22,077
Verizon Communications		0.9			370,098		12,062
Other Securities		0.7					9,660
							43,799
Utilities — 3.5%
Other Securities		3.5					48,998
Total Common Stock (Cost $774,456) ($ Thousands)							1,351,806

36 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 13.4%
SEI Liquidity Fund, L.P. 0.230% (B)**†		13.4	%		187,500,597	$	184,420
Total Affiliated Partnership (Cost $187,501) ($ Thousands)							184,420
CASH EQUIVALENT — 2.6%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		2.6			35,344,525		35,345
Total Cash Equivalent (Cost $35,345) ($ Thousands)							35,345
U.S. TREASURY OBLIGATIONS (C) — 0.2%
Other Securities		0.2					3,145
Total U.S. Treasury Obligations (Cost $3,145) ($ Thousands)							3,145
Total Investments — 114.1% (Cost $1,000,447) ($ Thousands)						$	1,574,716

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index EMINI		687		Dec-2010	$	1,154

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,380,547 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $182,445 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $184,420 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,351,806	$	—	$	—	$	1,351,806
Affiliated Partnership		—		184,420		—		184,420
Cash Equivalent		35,345		—		—		35,345
U.S. Treasury Obligations		—		3,145		—		3,145
Total Investments in Securities	$	1,387,151	$	187,565	$	—	$	1,574,716

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	1,154	$	—	$	—	$	1,154

* Futures contracts are valued at unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 37

SUMMARY SCHEDULE OF INVESTMENTS

Small Cap Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 96.8%
Consumer Discretionary — 15.6%
American Public Education* (A)		0.4	%		30,193	$	992
Capella Education* (A)		0.4			11,400		885
Cato, Cl A		0.3			27,494		736
Dana Holding* (A)		0.3			61,300		755
Deckers Outdoor* (A)		0.3			14,600		729
Finish Line, Cl A		0.4			59,500		828
HSN*		0.3			24,155		722
Iconix Brand Group*		0.4			49,375		864
MDC Partners, Cl A		0.4			69,000		923
Tempur-Pedic International*		0.4			29,202		905
Tenneco*		0.5			36,148		1,047
Other Securities		11.5					25,530
							34,916
Consumer Staples — 3.1%
Ruddick (A)		0.4			24,465		848
Other Securities		2.7					6,094
							6,942
Energy — 6.2%
Comstock Resources* (A)		0.4			42,750		961
Energy XXI Bermuda* (A)		0.3			30,645		708
Goodrich Petroleum* (A)		0.4			65,530		955
PetroHawk Energy*		0.4			59,353		958
Scorpio Tankers*		0.4			72,174		815
Other Securities		4.3					9,598
							13,995
Financials — 16.1%
First Financial Bancorp		0.3			44,490		742
Highwoods Properties†		0.4			25,437		826
MGIC Investment* (A)		0.3			78,585		725
Radian Group (A)		0.3			90,431		707
World Acceptance* (A)		0.4			20,991		927

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Other Securities		14.4	%			$	32,255
							36,182
Health Care — 12.8%
Align Technology*		0.3			36,260		710
AMERIGROUP*		0.3			17,706		752
Chemed		0.4			14,708		838
ICU Medical*		0.5			28,043		1,046
Medicis Pharmaceutical, Cl A		0.4			29,813		884
NuVasive* (A)		0.4			27,874		980
Questcor Pharmaceuticals* (A)		0.4			85,625		849
Savient Pharmaceuticals* (A)		0.4			36,771		841
STERIS		0.4			28,848		958
Other Securities		9.3					20,781
							28,639
Industrials — 13.6%
Aegean Marine Petroleum Network		0.5			64,034		1,066
Geo Group*		0.4			36,250		846
Wabash National* (A)		0.4			103,217		835
Other Securities		12.3					27,666
							30,413
Information Technology — 20.4%
Acme Packet* (A)		0.5			30,420		1,154
Atheros Communications*		0.3			28,244		744
MicroStrategy, Cl A*		0.4			9,509		824
Parametric Technology*		0.4			43,300		846
Plantronics		0.4			24,900		841
Quality Systems (A)		0.3			10,796		716
Quest Software*		0.5			44,938		1,105
Riverbed Technology* (A)		0.4			17,786		811
Teradyne* (A)		0.5			103,078		1,148
TIBCO Software* (A)		0.5			62,900		1,116
Unisys*		0.4			30,250		844
Valueclick*		0.3			56,822		743
VistaPrint* (A)		0.4			20,448		790
Other Securities		15.1					33,965
							45,647
Materials — 5.8%
Carpenter Technology		0.5			31,740		1,070
NewMarket		0.6			12,572		1,429
WR Grace*		0.6			46,928		1,311
Other Securities		4.1					9,135
							12,945
Telecommunication Services — 0.9%
Other Securities		0.9					1,950
Utilities — 2.3%
Other Securities		2.3					5,123
Total Common Stock (Cost $194,448) ($ Thousands)							216,752

38 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
PREFERRED STOCK — 0.1%
Other Securities		0.1	%			$	284
Total Preferred Stock (Cost $302) ($ Thousands)							284
WARRANTS — 0.0%
Other Securities		0.0					—
Total Warrants (Cost $—) ($ Thousands)							—
CONVERTIBLE BOND — 0.1%
Energy — 0.1%
Other Securities		0.1					118
Total Convertible Bond (Cost $119) ($ Thousands)							118
CORPORATE OBLIGATION — 0.0%
Financials — 0.0%
Other Securities		0.0					19
Total Corporate Obligation (Cost $19) ($ Thousands)							19
AFFILIATED PARTNERSHIP — 20.0%
SEI Liquidity Fund, L.P. 0.230%**†† (B)		20.0			44,868,654		44,869
Total Affiliated Partnership (Cost $44,869) ($ Thousands)							44,869
CASH EQUIVALENT — 2.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**††		2.5			5,592,067		5,592
Total Cash Equivalent (Cost $5,592) ($ Thousands)							5,592
U.S. TREASURY OBLIGATION (C) — 0.1%
Other Securities		0.1					240
Total U.S. Treasury Obligation (Cost $240) ($ Thousands)							240
Total Investments — 119.6% (Cost $245,589) ($ Thousands)						$	267,874

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		39		Dec-2010	$	12

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $223,978 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $43,356 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $44,869 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

Amounts designated as “—” are $0 or has been rounded to $0.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	216,734	$	12	$	6	$	216,752
Preferred Stock		—		284		—		284
Warrants		—		—		—		—
Convertible Bond		—		118		—		118
Corporate Obligation		—		—		19		19
Affiliated Partnership		—		44,869		—		44,869
Cash Equivalent		5,592		—		—		5,592
U.S. Treasury Obligation		—		240		—		240
Total Investments in Securities	$	222,326	$	45,523	$	25	$	267,874

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	12	$	—	$	—	$	12

* Futures contracts are valued at unrealized appreciation on the instrument.

The following is a reconciliation on the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock			Corporate Obligation
Beginning balance as of October 1, 2009	$	—		$	—
Accrued discounts/premiums		—			1
Realized gain/(loss)		(53	)		(9	)
Change in unrealized appreciation/(depreciation)		(2	)		—
Net purchases/sales		61			27
Net transfer in and/or out of Level 3		—			—
Ending balance as of September 30, 2010	$	6		$	19
Changes in unrealized gains (losses) included in earnings related to securities still held at reporting date	$	—		$	—

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 39

SUMMARY SCHEDULE OF INVESTMENTS

Small Cap Value Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 97.4%‡
Consumer Discretionary — 8.3%
Cooper Tire & Rubber (A)		0.5	%		141,048	$	2,769
MDC Partners, Cl A		0.5			225,800		3,019
Rent-A-Center (A)		0.4			103,500		2,316
Other Securities		6.9					36,709
							44,813
Consumer Staples — 3.9%
Chiquita Brands International* (A)		0.5			186,300		2,467
Del Monte Foods		0.5			205,887		2,699
Universal		0.4			53,300		2,137
Other Securities		2.5					13,888
							21,191
Energy — 5.3%
Goodrich Petroleum* (A)		0.4			160,285		2,335
Other Securities		4.9					26,711
							29,046
Financials — 36.4%
AMB Property† (A)		0.6			125,100		3,311
Boston Properties† (A)		0.4			26,600		2,211
Brookfield Asset Management, Cl A		0.4			81,900		2,323
Douglas Emmett† (A)		0.6			188,900		3,308
Employers Holdings		0.4			135,321		2,134
Endurance Specialty Holdings		0.6			79,508		3,164
First Financial Bancorp		0.4			142,429		2,376
Forest City Enterprises, Cl A* (A)		0.4			170,779		2,191
Host Hotels & Resorts† (A)		0.4			141,010		2,042
Infinity Property & Casualty (A)		0.5			54,896		2,677
Kimco Realty†		0.6			207,000		3,260
Meadowbrook Insurance Group		0.4			234,300		2,102
Nelnet, Cl A		0.4			104,300		2,387

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Platinum Underwriters Holdings		0.7	%		86,534	$	3,766
Plum Creek Timber† (A)		0.6			94,400		3,332
ProAssurance*		0.4			38,105		2,194
Public Storage†		0.5			29,700		2,882
Regency Centers† (A)		0.5			68,600		2,708
Simon Property Group†		0.4			25,418		2,357
UDR† (A)		0.4			113,000		2,387
Vornado Realty Trust† (A)		0.7			42,097		3,601
Zions Bancorporation (A)		0.4			99,137		2,118
Other Securities		25.7					138,937
							197,768
Health Care — 4.7%
ICU Medical*		0.4			59,800		2,230
Other Securities		4.3					23,454
							25,684
Industrials — 14.9%
EMCOR Group*		0.4			90,700		2,230
FTI Consulting* (A)		0.5			84,900		2,945
Geo Group*		0.5			118,800		2,774
IDEX (A)		0.4			63,223		2,245
Kaydon (A)		0.4			56,953		1,970
Teledyne Technologies*		0.6			75,829		3,019
Teleflex (A)		0.4			41,781		2,372
Towers Watson, Cl A		0.7			75,411		3,709
Other Securities		11.0					59,704
							80,968
Information Technology — 13.4%
CACI International, Cl A* (A)		0.5			61,799		2,797
Diebold (A)		0.5			93,837		2,917
Digital River* (A)		0.7			104,533		3,558
Intermec* (A)		0.5			205,290		2,517
Lawson Software*		0.6			383,686		3,250
Zebra Technologies, Cl A* (A)		0.3			58,325		1,962
Other Securities		10.3					55,819
							72,820
Materials — 4.8%
OM Group* (A)		0.4			73,029		2,200
Other Securities		4.4					23,623
							25,823
Telecommunication Services — 0.3%
Other Securities		0.3					1,372
Utilities — 5.4%
AGL Resources		0.4			57,490		2,205
Great Plains Energy (A)		0.6			161,122		3,045
NorthWestern (A)		0.4			75,500		2,152

40 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares/ Face Amount ($ Thousands)		Market Value ($ Thousands)
Portland General Electric		1.0	%		265,504	$	5,384
Other Securities		3.0					16,360
							29,146
Total Common Stock (Cost $466,397) ($ Thousands)							528,631
PREFERRED STOCK — 0.0%
Other Securities		0.0					171
Total Preferred Stock (Cost $166) ($ Thousands)							171
WARRANTS — 0.0%
Other Securities		0.0					12
Total Warrants (Cost $—) ($ Thousands)							12
AFFILIATED PARTNERSHIP — 24.9%
SEI Liquidity Fund, L.P. 0.230%**†† (B)		24.9			139,060,084		135,061
Total Affiliated Partnership (Cost $139,060) ($ Thousands)							135,061
CASH EQUIVALENT — 2.2%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**††		2.2			12,211,958		12,212
Total Cash Equivalent (Cost $12,212) ($ Thousands)							12,212
U.S. TREASURY OBLIGATION (C) (D) — 0.9%
U.S. Treasury Bills,
0.200%, 12/16/2010		0.9			$         4,755		4,753
Total U.S. Treasury Obligation (Cost $4,753) ($ Thousands)							4,753
Total Investments — 125.4% (Cost $622,588) ($ Thousands)						$	680,840

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		128		Dec-2010	$	502

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the year.

Percentages are based on Net Assets of $542,871 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

† Real Estate Investment Trust.

†† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $135,142 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $135,061 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

Amounts designated as “—” are $0 or have been rounded to $0.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	528,233	$	—	$	398	$	528,631
Preferred Stock		—		171		—		171
Warrants		12		—		—		12
Affiliated Partnership		—		135,061		—		135,061
Cash Equivalent		12,212		—		—		12,212
U.S. Treasury Obligation		—		4,753		—		4,753
Total Investments in Securities	$	540,457	$	139,985	$	398	$	680,840

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	502	$	—	$	—	$	502

* Futures contracts are value at unrealized appreciation on the instrument.

The following is reconciliation on the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock
Beginning balance as of October 1, 2009	$	445
Accrued discounts/premiums		—
Realized gain/(loss)		—
Change in unrealized appreciation/(depreciation)		(47	)
Net purchases/sales		—
Net transfer in and/or out of Level 3		—
Ending balance as of September 30, 2010	$	398
Changes in unrealized gains (losses) included in earnings to securities still held at reporting date	$	(47	)

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 41

SUMMARY SCHEDULE OF INVESTMENTS

Small Cap Growth Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 98.2%‡
Consumer Discretionary — 17.7%
American Public Education* (A)		0.6	%		75,470	$	2,480
Capella Education* (A)		0.5			27,161		2,108
Finish Line, Cl A (A)		0.4			121,239		1,686
J Crew Group*		0.4			44,795		1,506
Life Time Fitness* (A)		0.5			47,896		1,890
Saks*		0.4			177,435		1,526
Sotheby’s (A)		0.5			47,185		1,737
Talbots*		0.7			198,870		2,605
Tempur-Pedic International*		0.5			69,030		2,140
Tractor Supply (A)		0.4			37,937		1,505
Other Securities		12.8					49,033
							68,216
Consumer Staples — 2.4%
Other Securities		2.4					9,130
Energy — 5.5%
CARBO Ceramics (A)		0.4			19,500		1,579
Comstock Resources* (A)		0.7			110,822		2,492
Energy XXI Bermuda* (A)		0.4			70,710		1,634
Goodrich Petroleum* (A)		0.6			153,488		2,236
PetroHawk Energy*		0.6			142,109		2,294
World Fuel Services		0.5			68,297		1,776
Other Securities		2.3					9,028
							21,039
Financials — 6.4%
Affiliated Managers Group*		0.4			19,686		1,536
MarketAxess Holdings		0.5			111,808		1,899
MGIC Investment*		0.5			187,894		1,734
Other Securities		5.0					19,325
							24,494

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Health Care — 16.6%
Abaxis*		0.4	%		73,692	$	1,702
Acorda Therapeutics*		0.6			62,199		2,054
Align Technology* (A)		0.5			101,274		1,983
Healthsouth* (A)		0.4			86,656		1,664
NuVasive* (A)		0.6			69,934		2,458
PDL BioPharma (A)		0.4			291,037		1,531
PSS World Medical* (A)		0.4			70,485		1,507
STERIS		0.5			59,720		1,984
Other Securities		12.8					49,115
							63,998
Industrials — 16.5%
Aegean Marine Petroleum Network		0.7			160,822		2,676
AerCap Holdings*		0.4			139,360		1,649
CoStar Group* (A)		0.6			48,988		2,386
Innerworkings* (A)		0.4			243,246		1,598
Nordson		0.6			29,610		2,182
WESCO International*		0.5			43,615		1,714
Other Securities		13.3					51,092
							63,297
Information Technology — 28.0%
Acme Packet* (A)		0.7			65,801		2,497
Atheros Communications*		0.6			88,796		2,340
DTS*		0.6			59,270		2,262
MicroStrategy, Cl A*		0.5			23,278		2,016
Netlogic Microsystems* (A)		0.5			66,329		1,829
Quality Systems (A)		0.4			23,663		1,569
Quest Software* (A)		0.7			111,282		2,736
Riverbed Technology* (A)		0.5			41,103		1,873
SS&C Technologies Holdings*		0.4			94,980		1,501
Syntel		0.5			40,589		1,806
Teradyne*		0.6			217,250		2,420
TIBCO Software* (A)		0.6			134,800		2,391
Unisys* (A)		0.4			60,999		1,702
Veeco Instruments* (A)		0.5			56,168		1,959
VistaPrint* (A)		1.1			111,180		4,297
Other Securities		19.4					74,633
							107,831
Materials — 3.6%
NewMarket		0.4			14,028		1,595
WR Grace*		0.5			75,431		2,108
Other Securities		2.7					9,985
							13,688
Telecommunication Services — 1.2%
Other Securities		1.2					4,728

42 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Utilities — 0.3%
Other Securities		0.3	%			$	1,355
Total Common Stock (Cost $313,131) ($ Thousands)							377,776
EXCHANGE TRADED FUND — 0.1%
Other Securities		0.1					489
Total Exchange Traded Fund (Cost $472) ($ Thousands)							489
WARRANTS — 0.0%
Other Securities		0.0					—
Total Warrants (Cost $—) ($ Thousands)							—
AFFILIATED PARTNERSHIP — 26.2%
SEI Liquidity Fund, L.P., 0.230%**† (B)		26.2			103,678,869		100,628
Total Affiliated Partnership (Cost $103,679) ($ Thousands)							100,628
CASH EQUIVALENT — 2.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		2.5			9,691,169		9,691
Total Cash Equivalent (Cost $9,691) ($ Thousands)							9,691
U.S. TREASURY OBLIGATION (C) — 0.2%
Other Securities		0.2					803
Total U.S. Treasury Obligation (Cost $803) ($ Thousands)							803
Total Investments — 127.2% (Cost $427,776) ($ Thousands)						$	489,387

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		74		Dec-2010	$	290

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $384,613 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $100,287 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $100,628 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

Amounts designated as “—” are $0 or have been rounded to $0.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	377,231	$	142	$	403	$	377,776
Exchange Traded Fund		489		—		—		489
Warrants		—		—		—		—
Affiliated Partnership		—		100,628		—		100,628
Cash Equivalent		9,691		—		—		9,691
U.S. Treasury Obligation		—		803		—		803
Total Investments in Securities	$	387,411	$	101,573	$	403	$	489,387

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	290	$	—	$	—	$	290

* Futures contracts are valued at unrealized appreciation on the instrument.

The following is a reconciliation of the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock
Beginning balance as of October 1, 2009	$	571
Accrued discounts/premiums		—
Realized gain/(loss)		—
Change in unrealized appreciation/(depreciation)		(156	)
Net purchases/sales		—
Net transfer in and/or out of Level 3		(12	)
Ending balance as of September 30, 2010	$	403
Changes in unrealized gains (losses) included in earnings related to securities still held at reporting date	$	(156	)

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 43

SUMMARY SCHEDULE OF INVESTMENTS

Tax-Managed Small Cap Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 96.7%
Consumer Discretionary — 17.1%
American Eagle Outfitters		0.3	%		62,219	$	931
Bridgepoint Education* (A)		0.3			58,700		908
Dick’s Sporting Goods* (A)		0.4			36,750		1,030
Hanesbrands*		0.4			43,910		1,135
Interpublic Group* (A)		0.4			128,286		1,287
Jarden		0.3			30,520		950
LKQ*		0.3			44,700		930
National CineMedia		0.3			57,963		1,038
Phillips-Van Heusen		0.4			17,880		1,076
Polaris Industries (A)		0.3			13,535		881
Scientific Games, Cl A*		0.4			137,253		1,331
Tempur-Pedic International* (A)		0.3			32,040		993
Other Securities		13.0					38,722
							51,212
Consumer Staples — 3.8%
Del Monte Foods		0.4			87,443		1,146
Green Mountain Coffee Roasters* (A)		0.4			37,247		1,162
Herbalife		0.3			16,030		968
Other Securities		2.7					8,082
							11,358
Energy — 5.3%
Overseas Shipholding Group (A)		0.3			26,220		900
Other Securities		5.0					15,045
							15,945
Financials — 15.5%
Endurance Specialty Holdings		0.3			24,378		970
MFA Financial† (A)		0.3			128,122		978
ProAssurance* (A)		0.3			16,781		966
Unum Group		0.3			40,763		903

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Zions Bancorporation (A)		0.4	%		54,948	$	1,174
Other Securities		13.9					41,558
							46,549
Health Care — 10.8%
Onyx Pharmaceuticals* (A)		0.3			37,250		983
Pharmaceutical Product Development		0.3			38,170		946
Valeant Pharmaceuticals International* (A)		0.3			37,748		946
Other Securities		9.9					29,554
							32,429
Industrials — 15.0%
ArvinMeritor* (A)		0.4			68,680		1,067
Corrections Corp of America*		0.4			52,330		1,292
Gardner Denver		0.4			20,429		1,097
Regal-Beloit		0.4			17,760		1,042
SYKES Enterprises* (A)		0.3			76,617		1,040
Timken		0.3			23,300		894
Towers Watson, Cl A		0.3			17,815		876
Other Securities		12.5					37,715
							45,023
Information Technology — 17.1%
Alliance Data Systems* (A)		0.4			19,300		1,260
Equinix* (A)		0.4			11,810		1,209
GSI Commerce* (A)		0.7			88,240		2,179
Informatica* (A)		0.3			24,450		939
Lexmark International, Cl A*		0.4			24,300		1,084
Microsemi* (A)		0.4			67,972		1,166
Parametric Technology* (A)		0.3			49,859		974
PMC - Sierra*		0.3			131,900		971
Skyworks Solutions*		0.3			48,140		996
VistaPrint* (A)		0.3			25,759		996
Wright Express* (A)		0.3			25,395		907
Other Securities		13.0					38,788
							51,469
Materials — 5.4%
Silgan Holdings		0.3			32,230		1,022
Other Securities		5.1					15,032
							16,054
Telecommunication Services — 2.3%
Frontier Communications		0.3			109,460		894
MetroPCS Communications*		0.5			140,060		1,465
NII Holdings* (A)		0.5			40,500		1,664
SBA Communications, Cl A*		0.4			29,500		1,189
Other Securities		0.6					1,831
							7,043

44 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Utilities — 4.4%
AGL Resources		0.3	%		24,982	$	958
Great Plains Energy (A)		0.4			56,292		1,064
Portland General Electric (A)		0.5			65,881		1,336
Other Securities		3.2					9,866
							13,224
Total Common Stock (Cost $242,613) ($ Thousands)							290,306
CLOSED-END FUND — 0.0%
Other Securities		0.0					13
Total Closed-End Fund (Cost $9) ($ Thousands)							13
AFFILIATED PARTNERSHIP — 38.8%
SEI Liquidity Fund, L.P. 0.230% (B)**††		38.8			117,278,838		116,670
Total Affiliated Partnership (Cost $117,279) ($ Thousands)							116,670
CASH EQUIVALENT — 3.3%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%,**††		3.3			9,908,999		9,909
Total Cash Equivalent (Cost $9,909) ($ Thousands)							9,909
U.S. TREASURY OBLIGATION (C) — 0.2%
Other Securities		0.2					702
Total U.S. Treasury Obligation (Cost $702) ($ Thousands)							702
Total Investments — 139.0% (Cost $370,512) ($ Thousands)						$	417,600

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		79		Dec-2010	$	245
S&P Mid 400 Index E-MINI		44		Dec-2010		129
					$	374

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

A summary of the outstanding forward foreign currency contracts held by the Fund at September 30, 2010, is as follows:

Counterparty	Maturity Date		Currency to Deliver (Thousands)			Currency to Receive (Thousands)			Unrealized Appreciation (Depreciation) ($ Thousands)
Westpac Banking		10/5/10		USD	13		AUD	16	$	3
JP Morgan Chase		10/5/10		USD	19		AUD	23		3
Deutsche Bank AG		10/5/10		USD	24		AUD	28		3
Westpac Banking		10/5/10		USD	18		AUD	19		—
Deutsche Bank AG		10/5/10		AUD	297		USD	246		(41	)
Barclays Capital		10/5/10		AUD	33		USD	28		(4	)
Barclays Capital		10/5/10		AUD	16		USD	15		(1	)
									$	(37	)

Percentages are based on Net Assets of $300,343 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $114,123 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $116,670 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

AUD — Australian Dollar

Cl — Class

L.P. — Limited Partnership

USD — U.S. Dollar

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

Amounts designated as “—” are $0 or have been rounded to $0.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	290,306	$	—	$	—	$	290,306
Closed-End Fund		13		—		—		13
Cash Equivalent		9,909		—		—		9,909
U.S. Treasury Obligation		—		702		—		702
Affiliated Partnership		—		116,670		—		116,670
Total Investments in Securities	$	300,228	$	117,372	$	—	$	417,600

Other Financial Instruments	Level 1		Level 2			Level 3		Total
Futures Contracts*	$	374	$	—		$	—	$	374
Forwards*		—		(37	)		—		(37	)
	$	374	$	(37	)	$	—	$	337

* Futures contracts and Forwards are valued at unrealized appreciation (depreciation) on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 45

SUMMARY SCHEDULE OF INVESTMENTS

Mid-Cap Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 97.1%
Consumer Discretionary — 17.0%
American Eagle Outfitters		0.6	%		50,615	$	757
Darden Restaurants		0.5			15,914		681
Interpublic Group*		0.9			112,401		1,127
National CineMedia		0.6			40,857		731
Phillips-Van Heusen		0.7			14,619		879
Scientific Games, Cl A* (A)		0.7			88,173		855
Other Securities		13.0					16,215
							21,245
Consumer Staples — 4.5%
Molson Coors Brewing, Cl B		0.8			21,044		994
Other Securities		3.7					4,709
							5,703
Energy — 7.4%
Murphy Oil		0.7			14,230		881
Nabors Industries*		0.6			39,785		719
Newfield Exploration*		0.7			14,986		861
Range Resources		0.9			27,533		1,050
Spectra Energy		0.6			33,461		755
Other Securities		3.9					4,962
							9,228
Financials — 15.0%
Ameriprise Financial		0.6			16,974		803
Comerica		0.5			17,764		660
Endurance Specialty Holdings		0.5			16,676		664
Federated Investors, Cl B (A)		0.5			29,640		675
Fifth Third Bancorp		0.7			68,630		826
Host Hotels & Resorts† (A)		0.5			46,695		676
Liberty Property Trust† (A)		0.7			26,638		850
PartnerRe		0.6			8,785		704
People’s United Financial		0.6			62,547		819
Reinsurance Group of America, Cl A		0.6			15,284		738
Unum Group		0.7			40,688		901

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Zions Bancorporation (A)		0.6	%		35,450	$	757
Other Securities		7.9					9,685
							18,758
Health Care — 10.8%
AmerisourceBergen		0.5			21,586		662
Henry Schein*		0.5			11,319		663
Hologic*		0.6			46,875		750
Shire ADR		0.8			15,637		1,052
Other Securities		8.4					10,396
							13,523
Industrials — 13.9%
Avery Dennison		0.5			19,102		709
Cintas (A)		0.6			27,323		753
Dover		0.8			19,575		1,022
ITT		0.6			15,965		748
Timken		0.6			18,493		709
Other Securities		10.8					13,524
							17,465
Information Technology — 14.8%
Alliance Data Systems* (A)		0.7			13,490		880
Analog Devices		0.5			21,474		674
GSI Commerce* (A)		1.0			50,966		1,259
Marvell Technology Group*		0.7			46,670		817
Microsemi* (A)		0.6			42,950		737
Molex (A)		0.6			32,599		682
PMC - Sierra*		0.6			102,765		756
Synopsys*		0.7			36,818		912
Other Securities		9.4					11,794
							18,511
Materials — 5.7%
Allegheny Technologies (A)		0.6			15,613		725
Celanese, Ser A		0.6			21,662		695
Owens-Illinois*		0.7			32,432		910
Other Securities		3.8					4,798
							7,128
Telecommunication Services — 2.4%
NII Holdings* (A)		1.1			31,301		1,287
SBA Communications, Cl A*		0.7			22,314		899
Other Securities		0.6					780
							2,966
Utilities — 5.6%
AGL Resources		0.6			20,280		778
American Water Works		0.6			35,447		825
Edison International		0.6			23,110		795

46 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Xcel Energy (A)		0.6	%		29,784	$	684
Other Securities		3.2					3,938
							7,020
Total Common Stock (Cost $114,855) ($ Thousands)							121,547
AFFILIATED PARTNERSHIP — 20.4%
SEI Liquidity Fund, L.P. 0.230%, (B)**††		20.4			25,976,868		25,599
Total Affiliated Partnership (Cost $25,977) ($ Thousands)							25,599
CASH EQUIVALENT — 2.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**††		2.5			3,119, 529		3,120
Total Cash Equivalent (Cost $3,120) ($ Thousands)							3,120
U.S. TREASURY OBLIGATION (C) — 0.5%
Other Securities		0.5					621
Total U.S. Treasury Obligation (Cost $620) ($ Thousands)							621
Total Investments — 120.5% (Cost $144,572) ($ Thousands)						$	150,887

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P Mid 400 Index E-MINI		40		Dec-2010	$	109

For the year ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $125,192 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $25,217 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $25,599 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

Ser — Series

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	121,547	$	—	$	—	$	121,547
Affiliated Partnership		—		25,599		—		25,599
Cash Equivalent		3,120		—		—		3,120
U.S. Treasury Obligation		—		621		—		621
Total Investments in Securities	$	124,667	$	26,220	$	—	$	150,887

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	109	$	—	$	—	$	109

* Futures contracts are valued at unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 47

SUMMARY SCHEDULE OF INVESTMENTS

U.S. Managed Volatility Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 96.7%
Consumer Discretionary — 9.4%
Amazon.com*		1.4	%		36,240	$	5,692
priceline.com*		1.2			14,044		4,892
Other Securities		6.8					28,372
							38,956
Consumer Staples — 19.1%
Altria Group		1.3			230,976		5,548
Brown-Forman, Cl B		1.2			80,022		4,933
Campbell Soup		0.6			63,608		2,274
Clorox		0.9			56,943		3,801
Hershey		1.6			139,290		6,629
Hormel Foods		1.7			155,318		6,927
Kellogg		1.2			95,312		4,814
Kimberly-Clark		1.5			94,312		6,135
Lorillard		1.3			67,425		5,415
McCormick		1.1			103,307		4,343
Philip Morris International		1.3			98,663		5,527
Reynolds American		1.3			86,629		5,145
SYSCO		0.9			138,645		3,954
Other Securities		3.2					13,866
							79,311
Energy — 3.4%
Other Securities		3.4					14,028
Financials — 12.7%
Allied World Assurance Holdings		0.6			47,656		2,697
Arch Capital Group*		0.7			34,728		2,910
Bank of Hawaii		0.9			86,415		3,882
Commerce Bancshares		1.2			133,173		5,006
Cullen/Frost Bankers		0.9			66,031		3,557
RenaissanceRe Holdings		0.8			55,048		3,301
Other Securities		7.6					31,639
							52,992
Health Care — 20.6%
Abbott Laboratories		1.5			117,780		6,153
Alexion Pharmaceuticals*		0.6			37,161		2,392

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
AmerisourceBergen		1.6	%		215,872	$	6,619
Amgen*		1.4			105,780		5,829
Becton Dickinson		1.2			65,560		4,858
Biogen Idec*		1.1			78,674		4,415
C.R. Bard		1.6			80,915		6,589
Cardinal Health		1.3			165,843		5,479
Eli Lilly		1.2			135,736		4,958
Forest Laboratories*		0.9			123,040		3,806
Genzyme*		0.6			35,274		2,497
Johnson & Johnson		1.0			68,537		4,246
McKesson		1.7			112,345		6,941
Techne		1.0			63,609		3,927
Other Securities		3.9					16,789
							85,498
Industrials — 3.7%
Other Securities		3.7					15,575
Information Technology — 10.1%
Analog Devices		0.9			114,926		3,607
Cognizant Technology Solutions, Cl A*		1.3			84,579		5,453
International Business Machines		1.4			42,655		5,722
Tech Data*		0.9			94,708		3,817
Texas Instruments		1.1			169,858		4,610
Other Securities		4.5					18,878
							42,087
Materials — 3.0%
Newmont Mining		1.3			85,706		5,383
Other Securities		1.7					7,044
							12,427
Telecommunication Services — 2.2%
AT&T		0.5			79,900		2,285
Other Securities		1.7					6,953
							9,238
Utilities — 12.5%
AGL Resources		0.7			82,355		3,159
Atmos Energy		0.8			111,335		3,257
Nicor		0.7			59,996		2,749
NSTAR		1.2			124,608		4,903
SCANA		0.7			75,402		3,040
UGI		0.6			92,584		2,649
Vectren		0.7			105,405		2,727
Wisconsin Energy		1.2			88,024		5,088
Other Securities		5.9					24,198
							51,770
Total Common Stock (Cost $345,651) ($ Thousands)							401,882

48 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
CASH EQUIVALENT — 2.7%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		2.7	%		11,261,888	$	11,262
Total Cash Equivalent (Cost $11,262) ($ Thousands)							11,262
U.S. TREASURY OBLIGATION (A) — 0.2%
Other Securities		0.2					876
Total U.S. Treasury Obligation (Cost $876) ($ Thousands)							876
Total Investments — 99.6% (Cost $357,789) ($ Thousands)						$	414,020

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		124		Dec-2010	$	161

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $415,706 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

(A) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	401,882	$	—	$	—	$	401,882
Cash Equivalent		11,262		—		—		11,262
U.S. Treasury Obligation		—		876		—		876
Total Investments in Securities	$	413,144	$	876	$	—	$	414,020

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	161	$	—	$	—	$	161

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 49

SUMMARY SCHEDULE OF INVESTMENTS

Global Managed Volatility Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 93.5%
Australia — 7.8%
Coca-Cola Amatil		0.8	%		215,260	$	2,497
CSL		0.9			89,418		2,861
Foster’s Group		0.9			516,364		3,065
Metcash		1.0			765,054		3,237
TABCORP Holdings		1.4			690,995		4,683
Tatts Group		0.9			1,251,801		2,897
Other Securities		1.9					6,426
							25,666
Belgium — 2.9%
Colruyt		1.0			12,410		3,285
Mobistar		1.0			54,060		3,315
Other Securities		0.9					3,060
							9,660
Canada — 11.0%
Alimentation Couche Tard, Cl B		0.5			82,500		1,850
BCE		1.8			187,100		6,100
Empire, Cl A		0.8			46,800		2,512
George Weston		0.6			25,800		1,986
Metro, Cl A		1.0			73,500		3,198
Rogers Communications, Cl B		1.5			135,800		5,098
Saputo		1.2			114,600		3,923
Other Securities		3.6					11,667
							36,334
Cayman Islands — 0.0%
Other Securities		0.0					12
Denmark — 1.9%
Coloplast, Cl B		0.9			24,716		2,959
Novo Nordisk, Cl B		0.9			29,483		2,930
Other Securities		0.1					402
							6,291
European Currency Union — 0.0%
Other Securities		0.0					28

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Finland — 0.7%
Other Securities		0.7	%			$	2,144
France — 1.6%
France Telecom		0.5			70,588		1,527
Societe BIC		0.6			26,344		2,118
Other Securities		0.5					1,639
							5,284
Germany — 1.4%
Other Securities		1.4					4,497
Greece — 0.0%
Other Securities		0.0					143
Guernsey — 0.4%
Other Securities		0.4					1,467
Hong Kong — 3.9%
CLP Holdings		1.1			470,500		3,754
HongKong Electric Holdings		1.2			620,000		3,766
Link†		0.9			1,051,500		3,115
Other Securities		0.7					2,205
							12,840
Ireland — 0.1%
Other Securities		0.1					483
Israel — 0.8%
Other Securities		0.8					2,562
Italy — 2.0%
Snam Rete Gas		1.2			769,471		3,903
Other Securities		0.8					2,649
							6,552
Japan — 23.6%
Asahi Breweries		0.8			133,700		2,673
Chubu Electric Power		1.1			147,300		3,638
Idemitsu Kosan		0.7			27,800		2,383
Kansai Electric Power		0.8			108,000		2,621
Kyushu Electric Power		0.8			113,400		2,587
Lawson		0.8			60,200		2,756
Nippon Telegraph & Telephone		0.4			28,100		1,226
NTT DoCoMo		1.3			2,647		4,404
Oriental Land		1.1			38,600		3,595
Takeda Pharmaceutical		0.9			61,400		2,819
Tokyo Electric Power		0.7			98,900		2,410
Tokyo Gas		1.2			895,000		4,061
Unicharm		1.0			82,800		3,330
Other Securities		12.0					39,650
							78,153

50 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Jersey — 0.3%
Other Securities		0.3	%			$	1,068
Netherlands — 1.5%
Other Securities		1.5					4,809
New Zealand — 0.1%
Other Securities		0.1					171
Portugal — 0.0%
Other Securities		0.0					73
Singapore — 0.1%
Other Securities		0.1					311
Spain — 0.8%
Other Securities		0.8					2,729
Sweden — 0.6%
Other Securities		0.6					1,973
Switzerland — 1.9%
Swisscom		0.6			4,878		1,979
Other Securities		1.3					4,352
							6,331
United Kingdom — 3.7%
AstraZeneca		1.7			111,785		5,696
Other Securities		2.0					6,426
							12,122
United States — 26.4%
Abbott Laboratories		0.8			49,000		2,560
AmerisourceBergen		1.2			124,800		3,826
Annaly Capital Management†		1.4			253,000		4,453
C.R. Bard		0.8			30,700		2,500
Campbell Soup		1.1			99,337		3,551
Cephalon*		1.5			76,108		4,752
Clorox		0.8			40,200		2,684
Family Dollar Stores		1.1			80,949		3,575
General Mills		1.0			91,800		3,354
Hormel Foods		0.9			64,281		2,867
Kimberly-Clark		1.4			72,426		4,711
Lorillard		0.6			25,590		2,055
Raytheon		0.7			50,800		2,322
TJX		1.1			79,144		3,532
Other Securities		12.0					40,448
							87,190
Total Common Stock (Cost $278,866) ($ Thousands)							308,893

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
CASH EQUIVALENT — 4.8%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**††		4.8	%		15,950,954	$	15,951
Total Cash Equivalent (Cost $15,951) ($ Thousands)							15,951
U.S. TREASURY OBLIGATION (A) — 0.4%
Other Securities		0.4					1,401
Total U.S. Treasury Obligation (Cost $1,402) ($ Thousands)							1,401
Total Investments — 98.7% (Cost $296,219) ($ Thousands)						$	326,245

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation (Depreciation) ($ Thousands)
DJ Euro Stoxx 50 Index		56		Dec-2010	$	(30	)
FTSE Index		18		Dec-2010		(6	)
Hang Seng Index		6		Oct-2010		—
S&P 500 Index E-MINI		124		Dec-2010		190
SPI 200 Index		7		Dec-2010		(11	)
					$	143

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for the derivative type during the period.

A summary of the outstanding forward foreign currency contracts held by the Fund at September 30, 2010, is as follows:

Counterparty	Maturity Date	Currency to Deliver (Thousands)			Currency to Receive (Thousands)			Unrealized Appreciation (Depreciation) ($ Thousands)
Brown Brother Harriman	10/28/10		AUD	25,446		USD	24,385	$	(174	)
Brown Brother Harriman	10/28/10		CAD	39,659		USD	38,612		(34	)
Brown Brother Harriman	10/28/10		EUR	32,695		USD	44,044		(577	)
Brown Brother Harriman	10/28/10		GBP	9,438		USD	14,945		76
Brown Brother Harriman	10/28/10		JPY	7,517,496		USD	89,259		(764	)
Brown Brother Harriman	10/28/10		USD	139		AUD	145		—
Brown Brother Harriman	10/28/10		USD	73		CAD	75		—
Brown Brother Harriman	10/28/10		USD	377		EUR	278		2
Brown Brother Harriman	10/28/10		USD	651		JPY	54,579		2
								$	(1,469	)

Percentages are based on Net Assets of $330,590 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security (see Note 5).

(A) Security, or portion thereof, has been pledged as collateral on open futures contracts.

AUD — Australia Dollar

CAD — Canadian Dollar

Cl — Class

EUR — Euro

SEI Institutional Managed Trust / Annual Report / September 30, 2010 51

SUMMARY SCHEDULE OF INVESTMENTS

Global Managed Volatility Fund (Concluded)

September 30, 2010

GBP — British Pound

JPY — Japanese Yen

USD — U.S. Dollar

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

Amounts designated as “—” are $0 or have been rounded to $0.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	308,893	$	—	$	—	$	308,893
Cash Equivalent		15,951		—		—		15,951
U.S. Treasury Obligation		—		1,401		—		1,401
Total Investments in Securities	$	324,844	$	1,401	$	—	$	326,245

Other Financial Instruments	Level 1		Level 2			Level 3		Total
Futures Contracts*	$	143	$	—		$	—	$	143
Forwards*		—		(1,469	)		—		(1,469	)
Total Other Financial Instruments	$	143	$	(1,469	)	$	—	$	(1,326	)

* Futures contracts and Forwards are valued at the unrealized appreciation (depreciation) on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

52 SEI Institutional Managed Trust / Annual Report / September 30, 2010

SUMMARY SCHEDULE OF INVESTMENTS

Tax-Managed Managed Volatility Fund

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
COMMON STOCK — 95.8%
Consumer Discretionary — 10.1%
Discovery Communications, Cl C*		1.6	%		100,967	$	3,856
Discovery Communications, Cl A*		0.5			24,600		1,071
priceline.com*		2.0			13,419		4,674
Other Securities		6.0					14,212
							23,813
Consumer Staples — 24.9%
Altria Group		1.5			146,060		3,508
Brown-Forman, Cl B		0.9			34,571		2,131
Church & Dwight		1.4			52,657		3,420
Clorox		0.7			24,049		1,605
Coca-Cola		1.1			44,799		2,622
Colgate-Palmolive		1.2			37,890		2,912
General Mills		1.6			102,638		3,750
Hershey		0.6			29,694		1,413
HJ Heinz		0.6			30,420		1,441
Hormel Foods		1.4			72,027		3,213
JM Smucker		0.9			33,729		2,042
Kellogg		1.4			66,226		3,345
Kimberly-Clark		1.4			49,057		3,191
Lorillard		1.3			39,781		3,195
McCormick		1.0			56,064		2,357
PepsiCo		0.7			26,231		1,743
Philip Morris International		1.5			65,353		3,661
Procter & Gamble		1.0			38,153		2,288
Reynolds American		1.5			58,175		3,455
Wal-Mart Stores		1.3			57,884		3,098
Other Securities		1.9					4,529
							58,919
Energy — 3.2%
Other Securities		3.2					7,667
Financials — 11.6%
Capitol Federal Financial		1.1			106,124		2,621
Commerce Bancshares		0.9			57,523		2,162
People’s United Financial		1.2			211,032		2,762
TFS Financial		0.9			224,667		2,065

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
Wesco Financial		0.9	%		5,938	$	2,127
Other Securities		6.6					15,602
							27,339
Health Care — 16.4%
Abbott Laboratories		1.2			53,396		2,789
Alexion Pharmaceuticals*		1.4			49,940		3,214
Allscripts Healthcare Solutions*		1.0			133,383		2,464
AmerisourceBergen		1.3			101,478		3,111
C.R. Bard		0.9			26,277		2,140
Dentsply International		0.9			63,758		2,038
Edwards Lifesciences*		0.8			28,788		1,930
Henry Schein*		1.2			48,387		2,835
Johnson & Johnson		1.2			47,946		2,971
Laboratory Corp of America Holdings*		0.8			23,899		1,874
Techne		0.9			33,624		2,076
Other Securities		4.8					11,286
							38,728
Industrials — 4.6%
Stericycle*		1.3			43,078		2,993
Other Securities		3.3					8,006
							10,999
Information Technology — 9.2%
Google, Cl A*		1.4			6,136		3,226
IAC*		1.5			135,677		3,564
International Business Machines		1.5			26,347		3,534
WebMD Health, Cl A*		0.6			28,403		1,417
Zebra Technologies, Cl A*		0.7			48,247		1,623
Other Securities		3.5					8,342
							21,706
Materials — 2.8%
Newmont Mining		0.8			31,443		1,975
Other Securities		2.0					4,631
							6,606
Telecommunication Services — 2.3%
Other Securities		2.3					5,448
Utilities — 10.7%
NSTAR		1.5			92,552		3,642
OGE Energy		1.1			64,112		2,556
SCANA		0.8			45,750		1,845
Vectren		0.8			69,471		1,797
Wisconsin Energy		0.9			35,013		2,024
Other Securities		5.6					13,378
							25,242
Total Common Stock (Cost $192,560) ($ Thousands)							226,467

SEI Institutional Managed Trust / Annual Report / September 30, 2010 53

SUMMARY SCHEDULE OF INVESTMENTS

Tax-Managed Managed Volatility Fund (Concluded)

September 30, 2010

Description	Percentage of Net Assets (%)			Shares		Market Value ($ Thousands)
CASH EQUIVALENT — 5.9%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**†		5.9	%		13,946,906	$	13,947
Total Cash Equivalent (Cost $13,947) ($ Thousands)							13,947
U.S. TREASURY OBLIGATION (A) — 0.3%
Other Securities		0.3					622
Total U.S. Treasury Obligation (Cost $622) ($ Thousands)							622
Total Investments — 102.0% (Cost $207,129) ($ Thousands)						$	241,036

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		71		Dec-2010	$	101

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $236,402 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

(A) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

The Summary Schedule of Investments does not reflect the complete portfolio holdings. It includes the Fund’s 50 largest holdings and each investment of any issuer that exceeds 1% of the Fund’s net assets. “Other Securities” represent all other securities owned by the Fund. In certain instances, securities for which footnotes listed above may otherwise apply are included in the Other Securities caption. The complete schedule of portfolio holdings is available (i) without charge, upon request, by calling (800) 342-5734; and (ii) on the SEC’s website at http://www.sec.gov.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	226,467	$	—	$	—	$	226,467
Cash Equivalent		13,947		—		—		13,947
U.S. Treasury Obligation		—		622		—		622
Total Investments in Securities	$	240,414	$	622	$	—	$	241,036

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	101	$	—	$	—	$	101

* Futures contracts are valued at unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

54 SEI Institutional Managed Trust / Annual Report / September 30, 2010

SCHEDULE OF INVESTMENTS

Real Estate Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 95.5%
Financials — 94.1%
Alexandria Real Estate Equities† (A)		40,600	$	2,842
AMB Property† (A)		440,450		11,659
Apartment Investment & Management, Cl A† (A)		200,784		4,293
AvalonBay Communities† (A)		58,298		6,059
Boston Properties† (A)		117,983		9,807
Brandywine Realty Trust†		186,200		2,281
Brookfield Asset Management, Cl A		147,800		4,193
Camden Property Trust† (A)		69,300		3,324
CommonWealth REIT†		101,113		2,588
Corporate Office Properties Trust† (A)		87,750		3,274
CreXus Investment†		55,100		663
Dexus Property Group†		724,906		600
Douglas Emmett† (A)		462,549		8,099
Duke Realty† (A)		282,400		3,273
Equity Residential†		238,500		11,345
Essex Property Trust† (A)		50,900		5,571
Federal Realty Investment Trust† (A)		28,300		2,311
Forest City Enterprises, Cl A* (A)		301,500		3,868
Hammerson (United Kingdom)†		173,784		1,080
HCP† (A)		219,050		7,881
Host Hotels & Resorts† (A)		613,629		8,885
Hudson Pacific Properties†		35,525		582
Kimco Realty† (A)		374,300		5,895
Land Securities Group (United Kingdom)†		160,915		1,624
Liberty Property Trust† (A)		57,700		1,841
Macerich† (A)		124,482		5,347
Mack-Cali Realty†		65,700		2,149
Pebblebrook Hotel Trust*†		29,100		524
Plum Creek Timber† (A)		170,200		6,008
Prologis† (A)		289,450		3,410
Public Storage† (A)		143,004		13,877
Regency Centers† (A)		221,150		8,729
RioCan Real Estate Investment Trust†		52,800		1,180
Saul Centers†		62,100		2,605
Senior Housing Properties Trust†		125,550		2,950
Simon Property Group† (A)		146,963		13,629
SL Green Realty† (A)		53,300		3,376
Sunstone Hotel Investors*†		172,309		1,563
Taubman Centers† (A)		65,900		2,940
Terreno Realty*† (A)		30,900		563
UDR† (A)		199,500		4,213
Unibail (France)†		13,452		2,987
Ventas† (A)		123,700		6,379

Description	Shares		Market Value ($ Thousands)
Verde Realty PIPE* (B) (C)		21,400	$	404
Vornado Realty Trust† (A)		106,231		9,086
Westfield Group†		203,584		2,416
				208,173
Health Care — 1.4%
Brookdale Senior Living*		130,800		2,133
Sun Healthcare Group*		95,700		811
				2,944
Total Common Stock (Cost $146,449) ($ Thousands)				211,117
AFFILIATED PARTNERSHIP — 39.9%
SEI Liquidity Fund, L.P., 0.230%**†† (D)		89,831,482		88,228
Total Affiliated Partnership (Cost $89,831) ($ Thousands)				88,228
CASH EQUIVALENT — 4.9%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%**††		10,931,925		10,932
Total Cash Equivalent (Cost $10,932) ($ Thousands)				10,932
Total Investments — 140.3% (Cost $247,212) ($ Thousands)			$	310,277

Percentages are based on Net Assets of $221,172 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security (see Note 5).

(A) This Security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $88,062 ($ Thousands).

(B) Securities considered restricted. The total market value of such securities as of September 30, 2010 was $404 ($ Thousands) and represented 0.18% of Net Assets.

(C) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of September 30, 2010 was $404 ($ Thousands) and represented 0.18% of Net Assets.

(D) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $88,228 ($ Thousands).

Cl — Class

L.P. — Limited Partnership

PIPE — Private Investment in Public Entity

SEI Institutional Managed Trust / Annual Report / September 30, 2010 55

SCHEDULE OF INVESTMENTS

Real Estate Fund (Concluded)

September 30, 2010

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	210,713	$	—	$	404	$	211,117
Affiliated Partnership		—		88,228		—		88,228
Cash Equivalent		10,932		—		—		10,932
Total Investments in Securities	$	221,645	$	88,228	$	404	$	310,277

The following is a reconciliation on the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock
Beginning balance as of October 1, 2009	$	451
Accrued discounts/premiums		—
Realized gain/(loss)		—
Change in unrealized appreciation/(depreciation)		(47	)
Net purchases/sales		—
Net transfer in and/or out of Level 3		—
Ending balance as of September 30, 2010	$	404
Changes in unrealized gains (losses) included in earnings related to securities still held at reporting date	$	(47	)

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

56 SEI Institutional Managed Trust / Annual Report / September 30, 2010

SCHEDULE OF INVESTMENTS

Enhanced Income Fund

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS — 23.6%
Consumer Discretionary — 0.8%
President and Fellows of Harvard College 3.700%, 04/01/13	$	1,060	$	1,133
Financials — 19.0%
Ally Financial
0.291%, 12/19/12 (A)		1,250		1,251
Bank of America MTN
0.490%, 06/22/12 (A)		1,500		1,506
Citigroup
0.867%, 08/25/36 (A)		1,500		954
Citigroup Funding
0.805%, 04/30/12 (A)		375		377
0.246%, 06/03/11 (A)		375		375
General Electric Capital MTN
1.800%, 03/11/11		2,500		2,517
0.292%, 12/21/12 (A)		5,150		5,152
Goldman Sachs Group
1.700%, 03/15/11		3,180		3,201
ILFC E-Capital Trust I
5.900%, 12/21/65 (A) (B)		1,000		655
JPMorgan Chase Capital XXI, Ser U
1.416%, 02/02/37 (A)		1,300		930
Liberty Property L.P.
7.250%, 03/15/11‡		1,000		1,023
Mellon Funding
0.526%, 05/15/14 (A)		900		886
Merrill Lynch
1.052%, 09/15/36 (A)		700		490
Monumental Global Funding III
0.726%, 01/15/14 (A) (B)		900		862
Morgan Stanley
0.691%, 02/10/12 (A)		1,150		1,155
State Street
0.575%, 04/30/12 (A)		615		615
State Street Bank and Trust
0.492%, 09/15/11 (A)		960		963
State Street Capital Trust IV
1.292%, 06/15/37 (A)		375		270
Unitrin
6.000%, 05/15/17		670		690
4.875%, 11/01/10		1,000		1,002

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Western Union
5.400%, 11/17/11	$	1,175	$	1,227
				26,101
Health Care — 0.7%
UnitedHealth Group
1.718%, 02/07/11 (A)		1,000		1,005
Industrials — 0.4%
Continental Airlines, Ser 061G
0.646%, 06/02/13 (A)		569		518
Materials — 1.0%
Berry Plastics
5.276%, 02/15/15 (A)		540		509
NewPage
11.375%, 12/31/14		480		434
Verso Paper Holdings
11.500%, 07/01/14		400		438
				1,381
Telecommunication Services — 1.2%
Corning
6.050%, 06/15/15		400		403
Telecom Italia Capital
1.135%, 07/18/11 (A)		550		548
Vodafone Group PLC
0.584%, 02/27/12 (A)		650		650
				1,601
Utilities — 0.5%
Southern, Ser A
5.300%, 01/15/12		665		701
Total Corporate Obligations (Cost $33,848) ($ Thousands)				32,440
LOAN PARTICIPATIONS — 23.5%
Affinion Group Holdings
5.000%, 10/08/16		498		487
Allison Transmission
3.050%, 08/07/14		224		210
3.010%, 08/07/14		639		598
Aramark
2.164%, 01/26/14		445		423
Aramark LC-1 Facility Deposits
0.106%, 01/26/14		32		31
Asurion, 1st Lien Term Loan
3.398%, 07/03/14		96		92
3.258%, 07/03/14		262		251
3.257%, 07/03/14		310		297
BBN Acquisitions
5.000%, 09/14/15		456		457

SEI Institutional Managed Trust / Annual Report / September 30, 2010 57

SCHEDULE OF INVESTMENTS

Enhanced Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Biomet
3.262%, 03/25/15	$	57	$	55
3.260%, 03/25/15		470		456
3.260%, 03/25/15		24		23
Blount International
6.250%, 07/29/16		350		349
Booz Allen Hamilton, Tranche B
7.500%, 07/31/15		136		136
Burlington Coat Factory
2.540%, 05/28/13		394		378
2.530%, 05/28/13		390		374
Calpine Corporation
3.415%, 03/29/14		467		456
CDW Corporation
4.257%, 10/12/14		349		321
Cedar Fair
5.500%, 12/15/16		439		442
Celanese Holdings
2.284%, 04/02/14		377		370
Cengage Learning Holdings
3.030%, 06/28/14		739		662
Ceridian
3.260%, 11/08/14		500		449
CF Industries Holdings, Term Loan B-1
4.500%, 04/05/15		145		146
Charter Communications Holding, Term B Loan
2.260%, 03/15/14		76		74
Charter Communications Holding, Term C Loan
3.540%, 09/06/16		614		598
Cinemark
2.150%, 10/05/13		152		147
2.050%, 10/05/13		295		287
2.010%, 10/05/13		87		85
CIT Group, Term Loan 2-A
0.000%, 08/11/15 (H)		200		201
Clear Channel
3.910%, 01/29/16		466		366
Community Health Systems
2.549%, 07/25/14		671		637
Community Health Systems, Delayed Draw
2.549%, 07/25/14		23		22
Dana Corporation
4.790%, 01/31/15		8		8
4.780%, 01/31/15		117		116
4.740%, 01/31/15		69		68
4.700%, 01/31/15		146		144
4.510%, 01/31/15		87		86
Dynegy Holdings
4.020%, 04/02/13		814		804
Federal Mogul
2.198%, 12/29/14		588		517

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Federal Mogul, Term C Loan
2.198%, 12/28/15	$	300	$	264
Fidelity National Information Services
5.250%, 07/18/16		420		423
Flextronics International, Term Loan A-2
2.510%, 10/01/14		330		310
Flextronics International, Term Loan A-3
2.509%, 10/01/14		384		362
Graham Packaging
6.000%, 08/09/16		250		252
Graphic Packaging International, Incremental Term Loan
3.283%, 05/16/14		281		276
3.278%, 05/16/14		170		168
3.276%, 05/16/14		47		47
Hanesbrands, Term B Loan
5.250%, 12/10/15		232		234
Harrah’s Operation, Tranche B-2
3.498%, 01/28/15		807		694
HCA, Tranche B
2.783%, 11/18/13		564		542
Hertz LOC
2.020%, 12/21/12		85		83
Hertz, Term B Loan
2.020%, 12/21/12		109		106
2.010%, 12/21/12		351		344
Hexion Specialty Chemical, Term Loan C-1
2.813%, 05/05/13		317		303
Hexion Specialty Chemical, Term Loan C-2
2.813%, 05/05/13		140		134
Hub International Ltd., Delayed Draw
3.033%, 06/13/14		131		124
Hub International Ltd., Initial Term Loan
3.033%, 06/13/14		583		549
Iasis Healthcare LOC
2.347%, 03/15/14		15		15
Iasis Healthcare, Delayed Draw
2.256%, 03/15/14		56		54
Iasis Healthcare, Term B Loan
2.256%, 03/15/14		162		156
IMS Health, Term B Loan
5.250%, 02/26/16		198		199
Infor Enterprise Solutions
6.020%, 07/28/12		324		290
Infor Global Enterprise Solutions
6.510%, 03/02/14		33		21
Infor Global Enterprise Solutions, Tranche 1
6.510%, 03/02/14		169		109
Infor Global Solutions
6.020%, 07/28/15		169		151

58 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Infor Global Solutions, 2nd Lien
6.510%, 03/02/14	$	329	$	213
Integra Telecom, Term B Loan
9.250%, 04/07/15		678		678
Intelsat Bermuda
3.533%, 02/01/14		500		469
Intersil, Term B Loan
4.750%, 04/26/16		250		251
Inventiv Health
6.500%, 05/07/16		249		249
Inverness Medical
4.510%, 06/26/15		560		540
JHT Holding, 2nd Lien
12.500%, 12/21/12 (C) (D)		39		38
Lamar Media
4.250%, 10/01/16		448		449
Live Nation, Term B Loan
4.500%, 10/20/16		249		246
Meg Energy
6.000%, 04/03/16		553		554
Nalco, Term B Loan
6.500%, 05/06/16		553		551
Nielson Finance
2.258%, 12/31/17		778		744
NRG Holdings LOC
0.433%, 02/01/13		195		189
NRG Holdings, Term B Loan
2.033%, 02/01/13		293		285
Reable Therapeutics, Term B Loan
3.260%, 05/20/14		497		474
Regal Cinemas
3.789%, 11/19/16		406		404
Re/Max International, LLC
5.500%, 04/16/16		499		496
Reynolds Group
5.750%, 05/16/16		497		498
Sally Holdings, Term B Loan
2.510%, 11/16/13		488		478
Sensata Technology
2.231%, 04/27/13		534		516
Sirva Revolving Credit Loan Exit Finance
13.000%, 05/12/12		79		53
10.530%, 05/12/12		201		134
Sirva Worldwide
0.500%, 05/12/12 (E)		506		167
Solutia, 1st Lien Term Loan
4.750%, 03/02/17		164		164
Styron
7.500%, 05/21/16		494		500
Sungard Data Systems
4.043%, 02/28/16		498		488
3.970%, 02/28/16		35		34
Supervalu
1.510%, 06/02/12		349		337

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Telesat Canada U.S., Term I Loan
3.260%, 10/31/14	$	321	$	312
Telesat Canada U.S., Term II Loan
3.260%, 10/31/14		28		27
Texas Competitive Electric Holdings, Tranche B-2
4.066%, 10/10/14		386		300
3.789%, 10/10/14		2		1
3.758%, 10/10/14		330		256
Travelport LLC, LOC
3.033%, 08/23/13		57		55
Travelport LLC, Term B Loan
2.760%, 08/23/13		500		480
Universal Health Services, Term B Loan
0.000%, 05/16/16 (H)		350		351
Univision Communications
2.506%, 09/29/14		391		344
UPC Broadband Holding B.V.
4.250%, 12/31/17		250		242
Valeant Pharmaceuticals, Term B Loan
0.000%, 06/21/16 (H)		100		101
Vanguard Health
5.000%, 01/15/16		399		396
Verint Systems
5.250%, 05/25/14		639		626
Waiccs Las Vegas 3 LLC, 2nd Lien
0.000%, 07/30/10 (H) (I)		2,000		—
Warner Chilcott, Term Loan A-1
6.000%, 10/30/14		125		124
Warner Chilcott, Term Loan B-1
6.250%, 04/30/15		61		61
Warner Chilcott, Term Loan B-2
6.250%, 04/30/15		101		101
WideOpenWest Finance, 1st Lien
2.757%, 06/30/14		435		393
Total Loan Participations (Cost $33,245) ($ Thousands)				32,202
U.S. GOVERNMENT AGENCY OBLIGATIONS — 22.2%
FHLB
5.375%, 08/19/11		3,575		3,733
1.375%, 05/16/11		7,000		7,047
0.760%, 07/19/11		5,000		5,017
0.750%, 03/18/11		2,000		2,005
FNMA
5.125%, 04/15/11		750		770
1.750%, 03/23/11		7,500		7,554
1.375%, 04/28/11		1,560		1,570
0.422%, 07/12/11 (F)		2,750		2,741
Total U.S. Government Agency Obligations (Cost $30,356) ($ Thousands)				30,437

SEI Institutional Managed Trust / Annual Report / September 30, 2010 59

SCHEDULE OF INVESTMENTS

Enhanced Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
MORTGAGE-BACKED SECURITIES — 14.9%
Agency Mortgage-Backed Obligations — 8.8%
FHLMC
6.000%, 09/01/26	$	499	$	539
5.625%, 03/15/11		2,000		2,049
2.750%, 04/11/11		1,813		1,837
FNMA
6.500%, 09/01/26		311		341
6.000%, 01/01/27		1,354		1,467
FNMA TBA
6.500%, 10/01/37		2,500		2,726
6.000%, 11/01/14 to 11/01/26		2,938		3,176
				12,135
Non-Agency Mortgage-Backed Obligations — 6.1%
American Tower Trust, Ser 1A, Cl D
5.957%, 04/15/37 (B)		625		666
Banc of America Mortgage Securities, Ser 2004-J, Cl 2A1
3.580%, 11/25/34 (A)		217		206
Banc of America Mortgage Securities, Ser 2005-C, Cl 2A2
2.992%, 04/25/35 (A)		664		521
Banc of America Mortgage Securities, Ser 2005-I, Cl 2A1
4.780%, 10/25/35 (A)		483		403
Bayview Commercial Asset Trust, Ser 2006-4A, Cl A2
0.530%, 12/25/36 (A) (B)		430		287
Citigroup Mortgage Loan Trust, Ser 2004-HYB3, Cl 1A
2.987%, 09/25/34 (A)		151		133
Commercial Mortgage Pass—Through Certificates, Ser 2006-FL12, Cl A2
0.357%, 12/15/20 (A) (B)		944		898
Greenwich Capital Commercial Funding, Ser 2006-FL4A, Cl C
0.488%, 11/15/21 (A) (B)		810		584
Impac CMB Trust, Ser 2005-1, Cl 1A1
0.780%, 04/25/35 (A)		311		239
JPMorgan Mortgage Trust, Ser 2006-A6, Cl 4A1
4.540%, 10/25/36 (A)		815		647
Merrill Lynch Mortgage Investors, Ser 2005-A1, Cl 1A
3.147%, 12/25/34 (A)		310		260
MortgageIT Trust, Ser 2005-5, Cl A1
0.516%, 12/25/35 (A)		1,008		721
Prudential Commercial Mortgage Trust, Ser 2003-PWR1, Cl A1
3.669%, 02/11/36		452		455

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Sequoia Mortgage Trust, Ser 2004-10, Cl A2
0.577%, 11/20/34 (A)	$	228	$	196
Sequoia Mortgage Trust, Ser 2004-11, Cl A1
0.557%, 12/20/34 (A)		188		162
Sequoia Mortgage Trust, Ser 2005-2, Cl A1
0.477%, 03/20/35 (A)		101		84
Washington Mutual Mortgage Pass—Through Certificates, Ser 2006-AR2, Cl 1A1
5.231%, 03/25/37 (A)		466		382
Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-BB, Cl A2
2.897%, 01/25/35 (A)		479		456
Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR1, Cl 2A1
2.867%, 02/25/35 (A)		598		553
Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR2, Cl 2A2
2.875%, 03/25/35 (A)		512		474
				8,327
Total Mortgage-Backed Securities (Cost $21,459) ($ Thousands)				20,462
ASSET-BACKED SECURITIES — 10.9%
Automotive — 3.5%
Americredit Prime Automobile Receivable, Ser 2007-1, Cl D
5.620%, 09/08/14		775		778
Carmax Auto Owner Trust, Ser 2007-1, Cl C
5.530%, 07/15/13		190		194
Chrysler Financial Auto Securitization Trust, Ser 2010-A, Cl A2
0.690%, 01/08/13		345		345
Daimler Chrysler Auto Trust, Ser 2007-A, Cl A3A
5.000%, 02/08/12		107		107
Ford Credit Auto Owner Trust, Ser 2007-A, Cl C
5.800%, 02/15/13		515		542
Ford Credit Auto Owner Trust, Ser 2009-B, Cl A3
2.790%, 08/15/13		500		509
Harley-Davidson Motorcycle Trust, Ser 2006-1, Cl B
5.240%, 11/15/13 (B)		1,550		1,560
Hyundai Auto Receivables Trust, Ser 2007-A, Cl A3A
5.040%, 01/17/12		30		30

60 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Merrill Auto Trust Securitization, Ser 2007-1, Cl C
5.960%, 12/15/13	$	203	$	204
World Omni Automobile Lease Securitization Trust, Ser 2009-A, Cl A2
1.020%, 01/16/12		540		541
				4,810
Credit Cards — 3.1%
Capital One Multi-Asset Execution Trust, Ser 2006-A10, Cl A10
5.150%, 06/16/14		490		510
Chase Issuance Trust, Ser 2009-A3, Cl A3
2.400%, 06/17/13		480		486
Citibank Credit Card Issuance Trust, Ser 2007-B5, Cl B5
0.878%, 11/07/14 (A)		1,100		1,093
GE Capital Credit Card Master Note Trust, Ser 2007-4, Cl B
0.457%, 06/15/15 (A)		1,150		1,105
MBNA Master Credit Card Trust, Ser 1997-B, Cl B
0.607%, 08/15/14 (A)		1,000		986
				4,180
Mortgage Related Securities — 0.1%
New Century Home Equity Loan Trust, Ser 2005-1, Cl A1MZ
0.550%, 03/25/35 (A)		35		32
Option One Mortgage Loan Trust, Ser 2007-FXD1, Cl 3A3
5.611%, 01/25/37 (A)		285		120
				152
Other Asset-Backed Securities — 4.2%
Ally Master Owner Trust, Ser 2010-1, Cl A
2.007%, 01/15/15 (A) (B)		500		510
Babson CLO, Ser 2007-1A, Cl A1
0.750%, 01/18/21 (A) (B)		1,060		961
Dominos Pizza Master Issuer LLC, Ser 2007-1, Cl A2
5.261%, 04/25/37 (B)		2,200		2,200
GE Business Loan Trust, Ser 2003-2A, Cl B
1.257%, 11/15/31 (A) (B)		77		62
GE Business Loan Trust, Ser 2004-2A, Cl A
0.477%, 12/15/32 (A) (B)		115		99
GE Business Loan Trust, Ser 2004-2A, Cl B
0.737%, 12/15/32 (A) (B)		86		53

Description	Face Amount ($ Thousands)/Shares		Market Value ($ Thousands)
GE Dealer Floorplan Master Note Trust, Ser 09-2A, Cl A
1.807%, 10/20/14	$	500	$	508
Katonah, Ser 2005-7A, Cl B
0.796%, 11/15/17 (A) (B)		700		509
Marriott Vacation Club Owner Trust, Ser 2006-2A, Cl A
5.362%, 10/20/28 (B)		73		76
Marriott Vacation Club Owner Trust, Ser 2007-1A, Cl D
6.135%, 05/20/29 (B)		447		364
Triton Container Finance LLC, Ser 2006-1A, Cl N
0.426%, 11/26/21 (A) (B)		462		416
				5,758
Total Asset-Backed Securities (Cost $15,573) ($ Thousands)				14,900
U.S. TREASURY OBLIGATION — 2.2%
U.S. Treasury Notes
0.875%, 03/31/11		3,000		3,010
Total U.S. Treasury Obligation (Cost $3,006) ($ Thousands)				3,010
COMMON STOCK — 0.0%
JHT Holding*		4,002		—
Total Common Stock (Cost $—) ($ Thousands)				—
CASH EQUIVALENT — 4.1%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%†**		5,615,858		5,616
Total Cash Equivalent (Cost $5,616) ($ Thousands)				5,616
REPURCHASE AGREEMENT — 0.9%
Bank of America (G) 0.300%, dated 09/30/10, to be repurchased on 10/01/2010, repurchase amount $1,300,011 (collateralized by FHLB and FMAC obligations, par values $10,000 and $1,206,000, 1.750% and 4.500%, 09/11/2015 and 01/15/2013, total market value $1,331,056)		1,300		1,300
Total Repurchase Agreement (Cost $1,300) ($ Thousands)				1,300
Total Investments — 102.3% (Cost $144,403) ($ Thousands)			$	140,367

SEI Institutional Managed Trust / Annual Report / September 30, 2010 61

SCHEDULE OF INVESTMENTS

Enhanced Income Fund (Concluded)

September 30, 2010

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)			Expiration Date		Unrealized Depreciation ($ Thousands)
U.S. 10-Year Treasury Note		(23	)		Dec-2010	$	(4	)
U.S. 2-Year Treasury Note		(40	)		Dec-2010		(19	)
U.S. 5-Year Treasury Note		9			Dec-2010		—
U.S. Long Treasury Bond		(1	)		Dec-2010		—
						$	(23	)

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for the derivative type during the period.

Percentages are based on a Net Assets of $137,239 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

‡ Real Estate Investment Trust.

† Investment in Affiliated Security (see Note 5).

(A) Variable Rate Security — The rate reported on the Schedule of Investments is the rate in effect as of September 30, 2010. The date reported on the Schedule of Investments is the next reset date.

(B) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other “accredited investors.” These securities have been determined to be liquid under guidelines established by the board of Trustees.

(C) Securities considered restricted. The total value of such securities as of September 30, 2010 was $38 ($ Thousands) and represented 0.03% of Net Assets.

(D) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of September 30, 2010 was $38 ($ Thousands) and represented 0.03% of Net Assets.

(E) Unfunded bank loan. Interest rate not available.

(F) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase.

(G) Tri-Party Repurchase Agreement

(H) Unsettled bank loan.

(I) Security in default on interest payments.

Cl — Class

CLO — Collateralized Loan Obligation

FHLB — Federal Home Loan Bank

FHLMC — Federal Home Loan Mortgage Corporation

FMAC — Freddie Mac

FNMA — Federal National Mortgage Association

Ltd. — Limited

LLC — Limited Liability Company

LOC — Letter of Credit

L.P. — Limited Partnership

MTN — Medium Term Note

PLC — Public Limited Company

Ser — Series

TBA — To Be Announced

Amounts designated as “—” are $O or have been rounded to $O

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Corporate Obligations	$	—	$	32,440	$	—	$	32,440
Loan Participations		—		31,863		339		32,202
U.S. Government Agency Obligations		—		30,437		—		30,437
Mortgage-Backed Securities		—		20,462		—		20,462
Asset-Backed Securities		—		14,391		509		14,900
U.S. Treasury Obligation		3,010		—		—		3,010
Cash Equivalent		5,616		—		—		5,616
Repurchase Agreement		—		1,300		—		1,300
Total Investments in Securities	$	8,626	$	130,893	$	848	$	140,367

Other Financial Instruments	Level 1			Level 2		Level 3		Total
Futures Contracts*	$	(23	)	$	—	$	—	$	(23	)

* Futures contracts are valued at unrealized depreciation on the instrument.

The following is a reconciliation of the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Loan Participations			Asset- Backed Securities
Beginning balance as of October 1, 2009	$	29		$	425
Accrued discounts/premiums		(3	)		—
Realized gain/(loss)		623			(501	)
Change in unrealized appreciation/(depreciation)		(56	)		604
Net purchases/sales		(254	)		(19	)
Net transfer in and/or out of Level 3		—			—
Ending balance as of September 30, 2010	$	339		$	509
Changes in unrealized gains (losses) included in earnings related to securities still held at reporting date	$	16		$	110

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

62 SEI Institutional Managed Trust / Annual Report / September 30, 2010

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
MORTGAGE-BACKED SECURITIES — 46.4%
Agency Mortgage-Backed Obligations — 33.7%
FHLMC
7.500%, 11/01/29 to 09/01/32	$	1,432	$	1,635
7.000%, 01/01/11 to 01/01/32		293		330
6.500%, 06/01/17 to 09/01/38		13,294		14,594
6.000%, 03/01/20 to 09/01/38		40,495		44,008
5.500%, 02/01/14 to 04/01/38		34,877		37,382
5.000%, 10/01/18 to 02/01/39		57,085		60,521
4.500%, 04/01/35 to 11/01/35		2,079		2,177
4.000%, 04/01/19 to 10/01/33		1,581		1,627
FHLMC ARM (A)
6.429%, 11/01/37		5		5
6.143%, 06/01/37		145		156
5.967%, 06/01/38		933		1,004
5.953%, 01/01/37		942		1,013
5.902%, 03/01/37		126		136
5.768%, 07/01/38		1,984		2,131
5.717%, 03/01/36		309		332
5.691%, 03/01/36		231		248
5.642%, 10/01/38		245		262
FHLMC CMO, Ser 1988-1, Cl Z
9.300%, 04/15/19		95		116
FHLMC CMO, Ser 1997-1983, Cl Z
6.500%, 12/15/23		1,772		2,000
FHLMC CMO, Ser 1998-2043, Cl CJ
6.500%, 04/15/28		1,123		1,257
FHLMC CMO, Ser 2001-2277, Cl B
7.500%, 01/15/31		320		343
FHLMC CMO, Ser 2002-2399, Cl XG
6.500%, 01/15/32		2,989		3,279
FHLMC CMO, Ser 2002-2479, Cl PG
6.000%, 08/15/32		856		933

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FHLMC CMO, Ser 2002-2542, Cl ES
5.000%, 12/15/17	$	79	$	86
FHLMC CMO, Ser 2003-2558, Cl BD
5.000%, 01/15/18		612		681
FHLMC CMO, Ser 2003-2590, Cl BY
5.000%, 03/15/18		251		280
FHLMC CMO, Ser 2003-2676, Cl NG
5.500%, 09/15/31		387		405
FHLMC CMO, Ser 2003-2676, Cl CY
4.000%, 09/15/18		716		770
FHLMC CMO, Ser 2003-2694, Cl QG
4.500%, 01/15/29		95		99
FHLMC CMO, Ser 2004-2727, Cl PW
3.570%, 06/15/29		96		98
FHLMC CMO, Ser 2004-2765, Cl CT
4.000%, 03/15/19		414		451
FHLMC CMO, Ser 2004-2843, Cl BC
5.000%, 08/15/19		921		1,029
FHLMC CMO, Ser 2004-2875, Cl HB
4.000%, 10/15/19		163		179
FHLMC CMO, Ser 2005-2945, Cl SA
11.665%, 03/15/20 (A)		2,641		3,090
FHLMC CMO, Ser 2005-2980, Cl QA
6.000%, 05/15/35		1,236		1,349
FHLMC CMO, Ser 2005-3028, Cl PG
5.500%, 09/15/35		554		598
FHLMC CMO, Ser 2005-3035, Cl PA
5.500%, 09/15/35		250		280
FHLMC CMO, Ser 2008-3473, Cl DH
5.500%, 07/15/38		2,051		2,267
FHLMC CMO, Ser 2009-3598, Cl MA
4.500%, 11/15/38		797		845
FHLMC CMO, Ser 2010-3704, Cl CA
4.000%, 12/15/36		473		505
FHLMC CMO, Ser 2957, Cl PT
5.500%, 11/15/33		4,051		4,342
FHLMC CMO, Ser 3631, Cl PA
4.000%, 02/15/40		1,784		1,902
FHLMC CMO, Ser 3652, Cl AP
4.500%, 03/15/40		3,615		3,868
FHLMC Multifamily Structured Pass Through Certificates CMO, Ser 2009-K003, Cl AAB
4.768%, 05/25/18		857		943
FHLMC Multifamily Structured Pass Through Certificates CMO, Ser 2010-K005, Cl A2
4.317%, 11/25/19		569		618

SEI Institutional Managed Trust / Annual Report / September 30, 2010 63

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FHLMC Multifamily Structured Pass Through Certificates CMO, Ser 2010-K007, Cl A1
3.342%, 12/25/19	$	904	$	954
FHLMC Multifamily Structured Pass Through Certificates CMO, Ser 2010-K008, Cl A1
2.746%, 12/25/19		1,625		1,659
FHLMC TBA
5.500%, 10/15/37		2,500		2,652
4.500%, 11/14/35 to 10/11/37		21,500		22,339
4.000%, 10/14/40		5,400		5,537
FNMA
7.000%, 09/01/26 to 01/01/39		4,640		5,247
6.500%, 05/01/17 to 09/01/38		6,126		6,699
6.000%, 10/01/19 to 12/01/37		89,922		98,198
5.500%, 06/01/14 to 10/25/40		108,587		116,866
5.000%, 01/01/20 to 02/01/39		22,114		23,415
4.500%, 05/01/24 to 04/01/38		21,850		22,989
4.000%, 08/01/20		1,704		1,797
3.500%, 07/01/25 to 11/20/40		2,088		2,150
3.000%, 10/20/40		578		598
FNMA ARM (A)
6.266%, 09/01/37		222		240
6.257%, 10/01/36		185		199
6.124%, 12/01/36		224		241
6.074%, 11/01/37		215		232
6.042%, 09/01/37		112		120
6.028%, 01/01/37		357		384
6.013%, 10/01/37		147		158
5.979%, 07/01/37		291		313
5.977%, 04/01/37		334		359
5.962%, 10/01/37		601		646
5.957%, 01/01/37		483		519
5.920%, 07/01/37		473		509
5.910%, 03/01/37		269		289
5.906%, 09/01/37		228		246
5.878%, 02/01/37		272		292
5.837%, 09/01/37		445		478
5.681%, 10/01/37		243		261
5.610%, 02/01/39		640		686
2.441%, 11/01/35		914		937
2.440%, 10/01/35		5,831		5,980
2.428%, 11/01/35		826		847
2.425%, 11/01/35		896		918
2.419%, 11/01/35		811		831
2.415%, 11/01/35		3,062		3,135
2.411%, 10/01/35		505		520
2.404%, 10/01/35 to 11/01/35		5,219		5,337
FNMA CMO STRIPS, Ser 360, Cl 2, IO
5.000%, 08/01/35		14,631		1,954
FNMA CMO, Ser 1999-11, Cl Z
5.500%, 03/25/29		2,298		2,466

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FNMA CMO, Ser 2001-81, Cl HE
6.500%, 01/25/32	$	5,020	$	5,661
FNMA CMO, Ser 2001-T2, Cl B
6.022%, 11/25/10		4,500		4,518
FNMA CMO, Ser 2002-94, Cl HQ
4.500%, 01/25/18		782		842
FNMA CMO, Ser 2003-108, Cl BE
4.000%, 11/25/18		554		599
FNMA CMO, Ser 2003-125, Cl AY
4.000%, 12/25/18		178		193
FNMA CMO, Ser 2003-3, Cl HJ
5.000%, 02/25/18		6		7
FNMA CMO, Ser 2004-3, Cl HT
4.000%, 02/25/19		3		3
FNMA CMO, Ser 2004-60, Cl PA
5.500%, 04/25/34		490		527
FNMA CMO, Ser 2004-81, Cl KE
4.500%, 11/25/19		177		198
FNMA CMO, Ser 2005-58, Cl MA
5.500%, 07/25/35		435		490
FNMA CMO, Ser 2006-10, Cl FD
0.693%, 03/25/36 (A)		1,041		1,038
FNMA CMO, Ser 2006-112, Cl ST, IO
6.357%, 11/25/36 (A)		11,431		1,355
FNMA CMO, Ser 2007-113, Cl DB
4.500%, 12/25/22		1,197		1,340
FNMA CMO, Ser 2007-30, Cl MA
4.250%, 02/25/37		3		3
FNMA CMO, Ser 2007-39, Cl NA
4.250%, 01/25/37		10		10
FNMA CMO, Ser 2007-74, Cl A
5.000%, 04/25/34		463		480
FNMA CMO, Ser 2007-77, Cl MH
6.000%, 12/25/36		1,910		2,052
FNMA CMO, Ser 2008-22, Cl SI, IO
6.174%, 03/25/37 (A)		13,715		1,787
FNMA CMO, Ser 2009-110, Cl DA
4.500%, 01/25/40		957		1,038
FNMA CMO, Ser 2009-31, Cl A2
4.287%, 07/25/19		1,339		1,451
FNMA CMO, Ser 2009-71, Cl JT
6.000%, 06/25/36		584		636
FNMA CMO, Ser 2009-78, Cl J
5.000%, 09/25/19		1,677		1,795
FNMA CMO, Ser 2009-86, Cl BO, PO
0.000%, 03/25/37 (B)		8,370		7,307
FNMA CMO, Ser 2009-93, Cl PD
4.500%, 09/25/39		1,049		1,127
FNMA CMO, Ser 2009-M2, Cl A3
4.001%, 01/25/19		1,437		1,519
FNMA CMO, Ser 2010-15, Cl KA
4.000%, 03/25/39		1,145		1,212

64 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FNMA CMO, Ser 2010-54, Cl EA
4.500%, 06/25/40	$	2,834	$	2,977
FNMA CMO, Ser 2010-58, Cl MA
5.500%, 12/25/38		2,735		3,003
FNMA CMO, Ser 2010-M3, Cl A2
4.450%, 09/25/19		467		509
FNMA CMO, Ser 2010-M3, Cl A3
4.332%, 03/25/20 (A)		3,359		3,630
FNMA TBA
6.000%, 10/01/37		23,100		24,811
5.500%, 10/01/38		6,000		6,378
5.000%, 10/01/38		500		526
4.500%, 10/20/21 to 10/01/39		17,250		18,020
3.500%, 10/25/25 to 11/01/40		51,375		52,921
GNMA
8.000%, 11/15/29 to 09/15/30		113		133
7.500%, 03/15/29 to 01/15/32		274		314
7.000%, 08/15/13		41		43
6.500%, 04/15/26 to 09/15/35		10,506		11,817
6.000%, 03/15/14 to 10/15/35		16,126		17,669
5.000%, 07/20/40 to 09/20/40		17,760		18,975
3.000%, 11/20/40 to 01/20/41		739		760
GNMA ARM (A)
4.000%, 07/20/40		1,154		1,220
3.000%, 08/20/40		1,086		1,123
GNMA CMO, Ser 2006-37, Cl JG
5.000%, 07/20/36		685		750
GNMA CMO, Ser 2009-61, Cl WQ
5.993%, 11/16/35 (A)		1,482		226
GNMA CMO, Ser 2010-4, Cl NS, IO
6.133%, 01/16/40 (A)		24,817		3,580
GNMA CMO, Ser 2010-47, Cl VS
5.993%, 11/16/37 (A)		1,048		144
GNMA CMO, Ser 2010-87, Cl SK
6.243%, 07/16/40 (A)		2,029		313
GNMA TBA
6.000%, 12/01/33		100		108
5.000%, 10/01/40		100		106
4.500%, 10/15/39 to 12/15/39		12,500		13,129
4.000%, 11/01/35 to 10/15/40		31,025		32,050
3.500%, 11/15/40		600		604
				793,398
Non-Agency Mortgage-Backed Obligations — 12.7%
American Home Mortgage Assets, Ser 2007-2, Cl A1
0.472%, 03/25/47 (A)		8,698		4,732
American Home Mortgage Investment Trust, Ser 2005-1, Cl 6A
2.696%, 06/25/45 (A)		4,143		3,541

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
American Home Mortgage Investment Trust, Ser 2005-4, Cl 5A
5.350%, 11/25/45 (A)	$	3,835	$	2,995
Asset Securitization, Ser 1996-D3, Cl A2
7.778%, 10/13/26 (A)		682		703
Banc of America Commercial Mortgage Securities, Ser 2002-PB2, Cl B
6.309%, 06/11/35		414		435
Banc of America Commercial Mortgage Securities, Ser 2005-3, Cl A4
4.668%, 07/10/43		4,000		4,201
Banc of America Commercial Mortgage Securities, Ser 2005-6, Cl A4
5.350%, 09/10/47 (A)		410		451
Banc of America Commercial Mortgage Securities, Ser 2006-2, Cl A1
5.611%, 05/10/45		641		648
Banc of America Commercial Mortgage, Ser 2002-2, Cl B
5.271%, 07/11/43		225		233
Banc of America Commercial Mortgage, Ser 2002-2, Cl E
7.634%, 09/15/32 (A)		263		262
Banc of America Commercial Mortgage, Ser 2004-6, Cl A3
4.512%, 12/10/42		315		325
Banc of America Commercial Mortgage, Ser 2005-4, Cl A5A
4.933%, 07/10/45		764		811
Banc of America Commercial Mortgage, Ser 2005-5, Cl A4
5.115%, 10/10/45 (A)		380		417
Banc of America Commercial Mortgage, Ser 2006-5, Cl A4
5.414%, 09/10/47		1,359		1,448
Banc of America Commercial Mortgage, Ser 2007-3, Cl A3
5.837%, 06/10/49 (A)		1,360		1,439
Banc of America Funding, Ser 2003-1, Cl A1
6.000%, 05/20/33		38		40
Banc of America Funding, Ser 2005-B, Cl 2A1
3.018%, 04/20/35 (A)		4,202		3,091
Bear Stearns Adjustable Rate Mortgage Trust, Ser 2004-2, Cl 24A
5.268%, 05/25/34 (A)		2,841		2,808

SEI Institutional Managed Trust / Annual Report / September 30, 2010 65

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Bear Stearns Commercial Mortgage Securities, Ser 2001-TOP2, Cl A2
6.480%, 02/15/35	$	76	$	77
Bear Stearns Commercial Mortgage Securities, Ser 2002-PBW1, Cl A2
4.720%, 11/11/35 (A)		537		564
Bear Stearns Commercial Mortgage Securities, Ser 2002-TOP8, Cl A2
4.830%, 08/15/38		129		136
Bear Stearns Commercial Mortgage Securities, Ser 2003-T12, Cl A3
4.240%, 08/13/39 (A)		146		150
Bear Stearns Commercial Mortgage Securities, Ser 2004-PWR4, Cl A3
5.468%, 06/11/41 (A)		1,133		1,245
Bear Stearns Commercial Mortgage Securities, Ser 2005-PWR7, Cl A2
4.945%, 02/11/41		390		399
Bear Stearns Commercial Mortgage Securities, Ser 2005-PWR7, Cl A3
5.116%, 02/11/41 (A)		823		888
Bear Stearns Commercial Mortgage Securities, Ser 2005-T20, Cl A4A
5.149%, 10/12/42 (A)		3,250		3,593
Bear Stearns Commercial Mortgage Securities, Ser 2007-PW16, Cl A1
5.593%, 06/11/40		219		225
Chase Mortgage Finance, Ser 2005-A1, Cl 2A3
5.229%, 12/25/35 (A)		12,400		11,037
Citigroup Mortgage Loan Trust, Ser 2005-11, Cl A3
4.900%, 12/25/35 (A)		6,706		6,244
Commercial Mortgage Asset Trust, Ser 1999-C1, Cl A4
6.975%, 01/17/32 (A)		1,267		1,383
Commercial Mortgage Pass-Through Certificates, Ser 2001-J2A, Cl A2
6.096%, 07/16/34 (C)		82		85
Commercial Mortgage Pass-Through Certificates, Ser 2001-J2A, Cl B
6.304%, 07/16/34 (C)		826		918
Commercial Mortgage Pass-Through Certificates, Ser 2004-LB2A, Cl A4
4.715%, 03/10/39		479		506
Countrywide Alternative Loan Trust, Ser 2003-20CB, Cl 1A1
5.500%, 10/25/33		1,256		1,310
Countrywide Alternative Loan Trust, Ser 2004-J1, Cl 1A1
6.000%, 02/25/34		390		407
Countrywide Alternative Loan Trust, Ser 2005-27, Cl 3A2
1.521%, 08/25/35 (A)		487		258

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Countrywide Alternative Loan Trust, Ser 2005-56, Cl 4A1
0.657%, 11/25/35 (A)	$	6,441	$	3,620
Countrywide Alternative Loan Trust, Ser 2005-59, Cl 1A1
0.670%, 11/20/35 (A)		8,861		5,035
Countrywide Home Loan Mortgage Pass-Through Trust, Ser 2005-R3, Cl AF
0.747%, 09/25/35 (A) (C)		4,056		3,433
Credit Suisse First Boston Mortgage Securities, Ser 2003-C4, Cl B
5.253%, 08/15/36 (A)		518		545
Credit Suisse Mortgage Capital Certificates, Ser 2006-C5, Cl A3
5.311%, 12/15/39		1,850		1,924
Credit Suisse Mortgage Capital Certificates, Ser 2007-C1, Cl AAB
5.336%, 02/15/40		306		318
Credit Suisse Mortgage Capital Certificates, Ser 2007-C2, Cl A2
5.448%, 01/15/49 (A)		450		462
Credit Suisse Mortgage Capital Certificates, Ser 2007-C5, Cl A3
5.694%, 09/15/40 (A)		688		718
CS First Boston Mortgage Securities, Ser 2002-CKS4, Cl A2
5.183%, 11/15/36		1,008		1,066
CS First Boston Mortgage Securities, Ser 2002-CKS4, Cl A1
4.485%, 11/15/36		10		11
CS First Boston Mortgage Securities, Ser 2003-AR24, Cl 2A4
3.030%, 10/25/33 (A)		3,088		2,883
CS First Boston Mortgage Securities, Ser 2003-CPN1, Cl A2
4.597%, 03/15/35		509		538
CS First Boston Mortgage Securities, Ser 2005-C1, Cl A4
5.014%, 02/15/38 (A)		576		619
CS First Boston Mortgage Securities, Ser 2005-C1, Cl A3
4.813%, 02/15/38		106		110
CS First Boston Mortgage Securities, Ser C2, Cl A4
4.832%, 04/15/37		703		736
Deutsche Mortgage Securities, Ser 2004-4, Cl 7AR2
0.793%, 06/20/34 (A)		856		693
Developers Diversified Realty, Ser 2009-DDR1, Cl A
3.807%, 10/14/22 (C)		985		1,045
Downey Savings & Loan Association Mortgage Loan Trust, Ser 2004-AR2, Cl A2B
0.748%, 11/19/44 (A)		2,227		849

66 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FFCA Secured Lending, Ser 1999-1A, Cl M18, IO
1.190%, 09/18/25 (A) (C)	$	863	$	8
First Union National Bank Commercial Mortgage, Ser 2001-C4, Cl B
6.417%, 12/12/33		540		562
Fund America Investors II, Ser 1993-A, Cl A2
5.481%, 06/25/23 (A)		160		155
GE Capital Assurance, Ser 1, Cl A4
5.254%, 05/12/35 (A) (C)		5,280		5,650
GE Capital Commercial Mortgage, Ser 2001-3, Cl A1
5.560%, 06/10/38		38		38
GE Capital Commercial Mortgage, Ser 2002-1A, Cl A3
6.269%, 12/10/35		4,791		5,057
GE Capital Commercial Mortgage, Ser 2002-3A, Cl A2
4.996%, 12/10/37		10,500		11,150
GE Capital Commercial Mortgage, Ser 2006-C1, Cl A3
5.335%, 03/10/44 (A)		2,845		3,078
GMAC Commercial Mortgage Securities, Ser 2001-C2, Cl B
6.790%, 04/15/34		136		140
GMAC Commercial Mortgage Securities, Ser 2003-C2, Cl A2
5.658%, 05/10/40 (A)		357		392
GMAC Commercial Mortgage Securities, Ser 2003-C2, Cl B
5.675%, 05/10/40		531		566
GMAC Commercial Mortgage Securities, Ser 2003-C2, Cl D
5.675%, 05/10/40 (A)		233		237
GMAC Commercial Mortgage Securities, Ser 2003-C3, Cl A4
5.023%, 04/10/40		352		382
GMAC Commercial Mortgage Securities, Ser 2004-C2, Cl A4
5.301%, 08/10/38 (A)		442		483
Greenwich Capital Commercial Funding, Ser 2004-GG1, Cl A6
5.135%, 06/10/36 (A)		579		622
Greenwich Capital Commercial Funding, Ser 2004-GG1, Cl A7
5.317%, 06/10/36 (A)		3,600		3,946
Greenwich Capital Commercial Funding, Ser 2005-GG3, Cl AAB
4.619%, 08/10/42		4,689		4,898
Greenwich Capital Commercial Funding, Ser 2005-GG5, Cl A5
5.224%, 04/10/37 (A)		974		1,050

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Greenwich Capital Commercial Funding, Ser 2006-GG7, Cl A4
5.888%, 07/10/38 (A)	$	7,600	$	8,327
Greenwich Capital Commercial Funding, Ser 2007-GG9, Cl A4
5.444%, 03/10/39		8,645		9,113
GS Mortgage Securities II, Ser 2001-GL3A, Cl A2
6.449%, 08/15/18 (A) (C)		215		223
GS Mortgage Securities II, Ser 2004-C1, Cl A2
4.319%, 10/10/28		306		306
GS Mortgage Securities II, Ser 2005-GG4, Cl AABA
4.680%, 07/10/39		307		322
GS Mortgage Securities II, Ser 2006-GG8, Cl A4
5.560%, 11/10/39		833		887
GSMPS Mortgage Loan Trust, Ser 1998-1, Cl A
8.000%, 09/19/27 (A) (C)		62		64
GSR Mortgage Loan Trust, Ser 2003-13, Cl 1A1
4.461%, 10/25/33 (A)		2,602		2,665
GSR Mortgage Loan Trust, Ser 2005-AR4, Cl 3A5
3.253%, 07/25/35 (A)		7,000		5,226
Impac Funding, Ser 2010-1, Cl A1
5.314%, 01/25/51 (C)		1,558		1,633
Impac Secured Assets CMO Owner Trust, Ser 2006-2, Cl 2A1
0.697%, 08/25/36 (A)		779		683
Indymac INDA Mortgage Loan Trust, Ser 2007-AR7, Cl 1A1
6.127%, 11/01/37 (A)		1,388		1,194
Indymac Index Mortgage Loan Trust, Ser 2007-AR15, Cl 2A1
5.996%, 08/25/37 (A)		7,553		4,810
JP Morgan Alternative Loan Trust, Ser 2006-A7, Cl 2A6
5.750%, 12/25/36 (A)		12,253		4,940
JP Morgan Chase Commercial Mortgage Securities, Ser 2001-CIB2, Cl D
6.847%, 04/15/35 (A)		306		311
JP Morgan Chase Commercial Mortgage Securities, Ser 2001-CIB2, Cl A3
6.429%, 04/15/35		3,634		3,717
JP Morgan Chase Commercial Mortgage Securities, Ser 2002-C2, Cl B
5.211%, 12/12/34 (A)		144		151

SEI Institutional Managed Trust / Annual Report / September 30, 2010 67

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
JP Morgan Chase Commercial Mortgage Securities, Ser 2002-CIB4, Cl C
6.450%, 05/12/34 (A)	$	403	$	421
JP Morgan Chase Commercial Mortgage Securities, Ser 2002-CIB5, Cl A2
5.161%, 10/12/37		394		420
JP Morgan Chase Commercial Mortgage Securities, Ser 2004-C2, Cl A3
5.407%, 05/15/41 (A)		712		770
JP Morgan Chase Commercial Mortgage Securities, Ser 2004-CB9, Cl A4
5.371%, 06/12/41 (A)		230		247
JP Morgan Chase Commercial Mortgage Securities, Ser 2005-LDP2, Cl A3A
4.678%, 07/15/42		231		241
JP Morgan Chase Commercial Mortgage Securities, Ser 2005-LDP4, Cl A4
4.918%, 10/15/42 (A)		215		232
JP Morgan Chase Commercial Mortgage Securities, Ser 2005-LDP5, Cl A4
5.363%, 12/15/44 (A)		2,018		2,222
JP Morgan Chase Commercial Mortgage Securities, Ser 2006-CB16, Cl A4
5.552%, 05/12/45		311		337
JP Morgan Chase Commercial Mortgage Securities, Ser 2006-LDP9, Cl A2
5.134%, 05/15/47		832		880
JP Morgan Chase Commercial Mortgage Securities, Ser 2006-LDP9, Cl A3
5.336%, 05/15/47		599		623
JP Morgan Chase Commercial Mortgage Securities, Ser 2007-LD11, Cl ASB
6.006%, 06/15/49 (A)		452		488
JP Morgan Chase Commercial Mortgage Securities, Ser 2007-LD12, Cl A4
5.882%, 02/15/51 (A)		1,375		1,442
JP Morgan Chase Commercial Mortgage Securities, Ser 2007-LD12, Cl A3
6.188%, 02/15/51 (A)		1,875		1,992

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
JP Morgan Chase Commercial Mortgage Securities, Ser 2008-C2, Cl A1
5.017%, 02/12/51	$	4	$	4
JP Morgan Chase Commercial Mortgage Securities, Ser 2009-IWST, Cl A2
5.633%, 12/05/27 (C)		1,562		1,780
JP Morgan Chase Commercial Mortgage Securities, Ser 2010-C1, Cl A1
3.853%, 06/15/43 (C)		1,182		1,237
JP Morgan Chase Commercial Mortgage, Ser 2006-CB17, Cl A4
5.429%, 12/12/43		1,650		1,757
JP Morgan Commercial Mortgage Finance, Ser 2000-C10, Cl C
7.911%, 08/15/32 (A)		248		248
JPMorgan Chase Commercial Mortgage Securities, Ser 2003-CB7, Cl A4
4.879%, 01/12/38 (A)		540		579
LB Commercial Conduit Mortgage Trust, Ser 2007-C3, Cl A3
6.142%, 07/15/44 (A)		303		326
LB-UBS Commercial Mortgage Trust, Ser 2001-C2, Cl A2
6.653%, 11/15/27		295		299
LB-UBS Commercial Mortgage Trust, Ser 2002-C2, Cl A4
5.594%, 06/15/31		1,009		1,071
LB-UBS Commercial Mortgage Trust, Ser 2002-C4, Cl A4
4.563%, 09/15/26		214		219
LB-UBS Commercial Mortgage Trust, Ser 2003-C8, Cl A4
5.124%, 11/15/32 (A)		176		192
LB-UBS Commercial Mortgage Trust, Ser 2004-C1, Cl A4
4.568%, 01/15/31		304		323
LB-UBS Commercial Mortgage Trust, Ser 2004-C2, Cl A4
4.367%, 03/15/36		603		629
LB-UBS Commercial Mortgage Trust, Ser 2004-C7, Cl A5
4.628%, 10/15/29		294		309
LB-UBS Commercial Mortgage Trust, Ser 2005-C1, Cl A4
4.742%, 02/15/30		297		317
LB-UBS Commercial Mortgage Trust, Ser 2007-C1, Cl AAB
5.403%, 02/15/40		138		148
LB-UBS Commercial Mortgage Trust, Ser 2007-C1, Cl A3
5.398%, 02/15/40		80		85

68 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
LB-UBS Commercial Mortgage Trust, Ser 2008-C1, Cl AAB
6.324%, 04/15/41 (A)	$	362	$	402
LB-UBS Commercial Mortgage Trust, Ser 2008-C1, Cl A2
6.324%, 04/15/41 (A)		1,957		2,169
Master Reperforming Loan Trust, Ser 2005-1, Cl 1A1
6.000%, 08/25/34 (C)		3,458		3,418
Master Seasoned Securities Trust, Ser 2004-2, Cl A2
6.500%, 08/25/32		1,517		1,577
Merrill Lynch Mortgage Investors, Ser 2004-A1, Cl 4A
5.261%, 02/25/34 (A)		3,135		3,051
Merrill Lynch Mortgage Trust, Ser 2003-KEY1, Cl A4
5.236%, 11/12/35 (A)		949		1,026
Merrill Lynch Mortgage Trust, Ser 2005-CIP1, Cl A3A
4.949%, 07/12/38 (A)		371		394
Merrill Lynch Mortgage Trust, Ser 2005-MCP1, Cl A4
4.747%, 06/12/43 (A)		2,594		2,799
Merrill Lynch Mortgage Trust, Ser KEY2, Cl A4
4.864%, 08/12/39 (A)		928		975
Merrill Lynch/Countrywide Commercial Mortgage, Ser 2006-4, Cl A3
5.172%, 12/12/49 (A)		7,556		7,827
MLCC Mortgage Investors, Ser 2004-B, Cl A3
2.009%, 05/25/29 (A)		775		771
Morgan Stanley Capital I, Ser 2003-IQ6, Cl A4
4.970%, 12/15/41		596		643
Morgan Stanley Capital I, Ser 2003-T11, Cl A4
5.150%, 06/13/41		426		460
Morgan Stanley Capital I, Ser 2004-IQ8, Cl A4
4.900%, 06/15/40		886		923
Morgan Stanley Capital I, Ser 2004-T15, Cl A4
5.270%, 06/13/41 (A)		377		411
Morgan Stanley Capital I, Ser 2005-HQ5, Cl A4
5.168%, 01/14/42		475		513
Morgan Stanley Capital I, Ser 2005-HQ5, Cl AAB
5.037%, 01/14/42		197		207
Morgan Stanley Capital I, Ser 2005-HQ6, Cl A4A
4.989%, 08/13/42		3,793		4,116

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Morgan Stanley Capital I, Ser 2005-HQ7, Cl AAB
5.185%, 11/14/42 (A)	$	116	$	123
Morgan Stanley Capital I, Ser 2005-HQ7, Cl A4
5.376%, 11/14/42 (A)		927		1,023
Morgan Stanley Capital I, Ser 2005-IQ9, Cl A5
4.700%, 07/15/56		577		615
Morgan Stanley Capital I, Ser 2005-T17, Cl A4
4.520%, 12/13/41		72		74
Morgan Stanley Capital I, Ser 2006-T21, Cl A4
5.162%, 10/12/52 (A)		2,500		2,717
Morgan Stanley Capital I, Ser 2007-HQ13, Cl A1
5.357%, 12/15/44		305		313
Morgan Stanley Capital I, Ser 2007-IQ14, Cl A4
5.692%, 04/15/49 (A)		4,200		4,360
Morgan Stanley Capital I, Ser HQ3, Cl A4
4.800%, 01/13/41		312		335
Morgan Stanley Dean Witter Capital I, Ser 2001-TOP3, Cl B
6.550%, 07/15/33		325		338
Morgan Stanley Dean Witter Capital I, Ser 2002-HQ, Cl B
6.640%, 04/15/34		226		240
Morgan Stanley Dean Witter Capital I, Ser 2003-HQ2, Cl B
5.040%, 03/12/35		248		257
Morgan Stanley Dean Witter Capital I, Ser 2003-HQ2, Cl A2
4.920%, 03/12/35		208		222
Morgan Stanley Mortgage Loan Trust, Ser 2007-6XS, Cl 2A1S
0.457%, 02/25/47 (A)		223		177
Nomura Asset Securities, Ser 1998-D6, Cl A2
7.287%, 03/15/30 (A)		921		1,034
PNC Mortgage Acceptance, Ser 2001-C1, Cl A2
6.360%, 03/12/34		290		294
Prudential Mortgage Capital Funding, Ser 2001-ROCK, Cl B
6.760%, 05/10/34		295		303
RBS Greenwhich Capital Mortgage Pass-Through Certificates, Ser 2007-B, Cl 1A4
0.797%, 01/25/37 (A)		4,212		2,464
Residential Asset Mortgage Products, Ser 2004-SL1, Cl A8
6.500%, 11/25/31		474		472

SEI Institutional Managed Trust / Annual Report / September 30, 2010 69

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Residential Asset Securitization Trust, Ser 2004-A6, Cl A1
5.000%, 08/25/19	$	685	$	680
Residential Asset Securitization Trust, Ser 2004-IP2, Cl 2A1
2.897%, 12/25/34 (A)		1,011		965
Salomon Brothers Mortgage Securities VII, Ser 2000-C2, Cl C
7.727%, 07/18/33 (A)		107		107
Salomon Brothers Mortgage Securities VII, Ser 2001-C2, Cl A3
6.499%, 10/13/11		4,681		4,849
Salomon Brothers Mortgage Securities VII, Ser 2002-KEY2, Cl A2
4.467%, 03/18/36		56		58
Sequoia Mortgage Trust, Ser 2010-H1, Cl A1
3.750%, 02/25/40 (A)		455		460
Structured Adjustable Rate Mortgage Loan Trust, Ser 2005-19, Cl 1A1
0.667%, 10/25/35 (A)		1,539		1,027
Structured Adjustable Rate Mortgage Loan Trust, Ser 2007-7, Cl 2AS2
5.433%, 08/25/15 (A)		9,468		5,899
Structured Asset Mortgage Investments, Ser 2006-AR8, Cl A1A
0.547%, 10/25/36 (A)		4,359		2,582
Structured Asset Securities, Ser 2005-17, Cl 5A1
5.500%, 10/25/35		2,770		2,376
Thornburg Mortgage Securities Trust, Ser 2007-4, Cl 3A1
6.205%, 09/25/37 (A)		2,146		2,089
US Bank, Ser 2007-1, Cl A
5.920%, 05/25/12		1,681		1,758
Wachovia Bank Commercial Mortgage Trust, Ser 2002-C1, Cl A4
6.287%, 04/15/34		174		184
Wachovia Bank Commercial Mortgage Trust, Ser 2003-C7, Cl A1
4.241%, 10/15/35 (C)		127		128
Wachovia Bank Commercial Mortgage Trust, Ser 2003-C8, Cl A3
4.445%, 11/15/35		583		601
Washington Mutual Mortgage Pass-Through Certificates, Ser 2003-MS1, Cl 1A
5.000%, 02/25/18		775		789

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR13, Cl A1A1
0.637%, 10/25/47 (A)	$	3,811	$	3,090
Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR15, Cl A1A2
0.627%, 11/25/47 (A)		5,733		4,202
Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR16, Cl 1A4A
5.070%, 12/25/35 (A)		12,955		10,281
Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR19, Cl A1A2
0.637%, 12/25/45 (A)		5,401		4,135
Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR5, Cl A6
2.700%, 05/25/35 (A)		9,220		7,187
Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR13, Cl 1A
1.321%, 10/25/46 (A)		3,722		2,326
Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY1, Cl 1A1
5.610%, 02/25/37 (A)		3,087		2,277
Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-OA6, Cl 1A
1.251%, 07/25/47 (A)		8,245		5,118
Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-H, Cl 1A1
4.534%, 06/25/34 (A)		2,901		2,859
				298,504
Total Mortgage-Backed Securities (Cost $1,079,702) ($ Thousands)				1,091,902
CORPORATE OBLIGATIONS — 31.9%
Consumer Discretionary — 1.8%
Boyd Gaming
7.125%, 02/01/16 (D)		350		292
British Sky Broadcasting Group
9.500%, 11/15/18 (C)		652		890
Comcast
6.500%, 01/15/15		985		1,155
6.500%, 01/15/17		2,695		3,206
6.400%, 03/01/40		550		611
5.450%, 11/15/10		525		528
5.300%, 01/15/14		2,340		2,615
5.150%, 03/01/20		145		158

70 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Comcast Cable Communications
8.375%, 03/15/13	$	1,154	$	1,340
6.750%, 01/30/11 (D)		2,310		2,355
COX Communications
5.450%, 12/15/14		660		747
Daimler Finance LLC
7.300%, 01/15/12		1,400		1,506
6.500%, 11/15/13		1,320		1,510
DIRECTV Holdings
6.000%, 08/15/40		1,527		1,577
DISH DBS
7.875%, 09/01/19		690		743
Eastman Kodak
7.250%, 11/15/13		1,080		1,037
Echostar DBS
7.750%, 05/31/15		220		235
General Motors
8.250%, 07/15/23 (D) (E)		3,100		1,000
Grupo Televisa
6.625%, 01/15/40		289		329
Inn of the Mountain Gods Resort & Casino
12.000%, 11/15/10 (E)		1,010		414
Mattel
6.200%, 10/01/40		595		604
4.350%, 10/01/20		385		389
MGM Mirage
7.625%, 01/15/17 (D)		440		371
NBC Universal
5.950%, 04/01/41		785		807
4.375%, 04/01/21		1,205		1,220
2.875%, 04/01/16		949		949
News America
6.650%, 11/15/37		180		207
6.200%, 12/15/34		65		70
6.150%, 03/01/37		1,215		1,308
Omnicom Group
4.450%, 08/15/20		699		719
Sears Holdings
6.625%, 10/15/18		340		340
Station Casinos
7.750%, 08/15/16 (E)		1,495		—
Sun Media
7.625%, 02/15/13		470		472
Thomson Reuters
5.950%, 07/15/13		477		535
Time Warner
6.100%, 07/15/40		360		388
4.700%, 01/15/21		1,450		1,536
3.150%, 07/15/15		1,100		1,140
Time Warner Cable
8.750%, 02/14/19		210		278
8.250%, 04/01/19 (D)		4,895		6,320
6.750%, 06/15/39 (D)		920		1,062
6.550%, 05/01/37		1,645		1,855

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Time Warner Entertainment
8.375%, 07/15/33	$	60	$	78
				42,896
Consumer Staples — 1.6%
Altria Group
10.200%, 02/06/39		300		443
9.700%, 11/10/18		712		965
9.250%, 08/06/19		1,250		1,676
Anheuser-Busch
5.050%, 10/15/16		940		1,061
Anheuser-Busch InBev Worldwide
7.750%, 01/15/19 (C)		2,570		3,334
5.375%, 11/15/14 (C)		255		286
5.375%, 01/15/20		1,580		1,783
5.000%, 04/15/20		560		617
4.125%, 01/15/15		1,305		1,405
CVS Caremark
9.350%, 01/10/23 (C)		4,300		4,534
Diageo Capital
4.828%, 07/15/20		2,430		2,729
Dr Pepper Snapple Group
6.820%, 05/01/18		2,505		3,099
HJ Heinz
5.350%, 07/15/13		510		563
Kraft Foods
6.500%, 02/09/40		2,745		3,214
5.375%, 02/10/20		2,820		3,150
PepsiCo
5.500%, 01/15/40		361		414
Reynolds American
6.750%, 06/15/17		1,260		1,417
Wal-Mart Stores
5.625%, 04/01/40		1,350		1,529
5.250%, 09/01/35		520		557
4.875%, 07/08/40		965		986
WM Wrigley Jr
3.700%, 06/30/14 (C)		535		554
Woolworths
4.000%, 09/22/20		1,140		1,162
2.550%, 09/22/15		810		820
				36,298
Energy — 3.6%
Anadarko Finance, Ser B
7.500%, 05/01/31		370		400
Anadarko Petroleum
6.450%, 09/15/36		1,300		1,302
6.375%, 09/15/17 (D)		1,227		1,352
Apache
6.000%, 09/15/13		2,570		2,886
5.100%, 09/01/40		640		644
Baker Hughes
7.500%, 11/15/18		2,530		3,229

SEI Institutional Managed Trust / Annual Report / September 30, 2010 71

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
BP Capital Markets
5.250%, 11/07/13	$	1,790	$	1,950
3.875%, 03/10/15		210		219
3.125%, 03/10/12		240		245
Chesapeake Energy
7.250%, 12/15/18		660		711
6.625%, 08/15/20		130		136
6.500%, 08/15/17		275		285
Cie Generale de Geophysique-Veritas
7.750%, 05/15/17		110		113
7.500%, 05/15/15		1,205		1,226
Conoco Funding
7.250%, 10/15/31		50		64
ConocoPhillips
5.900%, 10/15/32		10		11
5.900%, 05/15/38		2,640		3,068
ConocoPhillips Holding
6.950%, 04/15/29		190		244
Consol Energy
8.250%, 04/01/20 (C)		660		721
El Paso
6.950%, 06/01/28		6,750		6,365
EnCana
6.500%, 02/01/38		1,345		1,568
Energy Transfer Partners
9.000%, 04/15/19		505		647
6.700%, 07/01/18		1,250		1,456
ENI SPA (C)
4.150%, 10/01/20		1,315		1,333
Enterprise Products Operating
9.750%, 01/31/14		1,910		2,339
GAZ Capital
6.212%, 11/22/16 (C)		220		235
Hess
7.875%, 10/01/29		1,070		1,385
7.300%, 08/15/31		1,220		1,501
5.600%, 02/15/41		386		403
Husky Energy
5.900%, 06/15/14		567		631
Kerr-McGee
7.875%, 09/15/31		460		523
6.950%, 07/01/24		450		491
Kinder Morgan Energy Partners
7.125%, 03/15/12		90		97
6.750%, 03/15/11		450		461
6.550%, 09/15/40		277		303
6.000%, 02/01/17		505		570
5.850%, 09/15/12		130		140
5.000%, 12/15/13		720		786
Motiva Enterprises
6.850%, 01/15/40 (C)		1,100		1,318
Noble Holding International
6.200%, 08/01/40		561		620

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Occidental Petroleum
7.000%, 11/01/13	$	1,330	$	1,565
OPTI Canada
7.875%, 12/15/14		70		52
Peabody Energy
6.500%, 09/15/20		610		657
Pemex Project Funding Master Trust
6.625%, 06/15/35		1,667		1,821
Petrobras International Finance
6.875%, 01/20/40		562		643
6.125%, 10/06/16		655		733
5.750%, 01/20/20		574		636
Petro-Canada
6.800%, 05/15/38		1,925		2,282
Petroleos Mexicanos
5.500%, 01/21/21		175		186
Plains all American Pipeline
3.950%, 09/15/15		716		751
QEP Resources
6.875%, 03/01/21		650		704
Range Resources
6.750%, 08/01/20		620		645
Ras Laffan Liquefied Natural Gas III
5.500%, 09/30/14 (C)		250		274
Rockies Express Pipeline
3.900%, 04/15/15 (C)		1,533		1,534
SandRidge Energy
9.875%, 05/15/16 (C)		870		898
Shell International Finance BV
4.375%, 03/25/20		1,980		2,180
3.100%, 06/28/15		1,268		1,335
Southern Natural Gas
8.000%, 03/01/32		170		200
Southern Union
8.250%, 11/15/29		1,315		1,527
Statoil ASA
3.125%, 08/17/17		530		551
Suncor Energy
6.500%, 06/15/38		725		832
Tennessee Gas Pipeline
7.625%, 04/01/37		830		955
Tosco
8.125%, 02/15/30		400		548
Total Capital
3.000%, 06/24/15		1,085		1,138
TransCanada PipeLines
3.800%, 10/01/20		1,050		1,073
Transocean
4.950%, 11/15/15		1,720		1,789
Valero Energy
10.500%, 03/15/39		1,750		2,366
9.375%, 03/15/19		2,656		3,392
Williams
8.750%, 03/15/32		1,732		2,170
7.875%, 09/01/21		3,480		4,226
7.750%, 06/15/31		1,392		1,590

72 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Williams, Ser A
7.500%, 01/15/31	$	808	$	914
XTO Energy
7.500%, 04/15/12		850		937
5.500%, 06/15/18		2,030		2,432
				85,514
Financials — 16.6%
Achmea Hypotheekbank
3.200%, 11/03/14 (C)		2,310		2,455
AEP Texas Central Transition Funding
5.090%, 07/01/15		3,600		4,082
4.980%, 07/01/13		2,282		2,415
Allstate
7.450%, 05/16/19		1,085		1,356
Allstate Life Global Funding Trusts MTN
5.375%, 04/30/13		100		111
Ally Financial
8.300%, 02/12/15 (C)		180		196
8.000%, 03/15/20		740		808
6.875%, 09/15/11		2,325		2,398
2.497%, 12/01/14 (A)		2,234		1,997
American Express
7.250%, 05/20/14		120		141
6.800%, 09/01/66 (A)		2,010		2,010
American Express Credit MTN
5.125%, 08/25/14		1,670		1,850
2.750%, 09/15/15		1,280		1,288
American General Finance MTN
6.900%, 12/15/17		520		434
American Honda Finance MTN
3.875%, 09/21/20 (C)		1,065		1,079
American International Group
6.250%, 03/15/37		2,560		2,195
5.850%, 01/16/18 (D)		3,460		3,581
ASIF Global Financing XIX
4.900%, 01/17/13 (C)		390		399
Australia & New Zealand Banking Group
3.700%, 01/13/15 (C)		1,445		1,522
BAC Capital Trust XIV
5.630%, 03/15/12 (A)		130		93
BAC Capital Trust XV
1.338%, 06/01/56 (A)		5,715		3,605
Bank of America
7.375%, 05/15/14		1,090		1,253
6.500%, 08/01/16		3,375		3,795
6.000%, 09/01/17		740		801
5.750%, 12/01/17		2,880		3,079
5.625%, 07/01/20		1,290		1,363
5.420%, 03/15/17		4,400		4,506
4.500%, 04/01/15		180		189
3.700%, 09/01/15		890		899

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Bank of Tokyo-Mitsubishi UFJ
3.850%, 01/22/15 (C)	$	690	$	744
Barclays Bank
6.050%, 12/04/17 (C)		1,230		1,334
5.200%, 07/10/14		630		698
5.125%, 01/08/20		1,310		1,416
5.000%, 09/22/16		170		186
Barnett Capital III
0.969%, 02/01/27 (A)		425		296
Bear Stearns
7.250%, 02/01/18		1,120		1,364
6.400%, 10/02/17		70		81
5.350%, 02/01/12		3,280		3,467
4.650%, 07/02/18		995		1,047
4.500%, 10/28/10		1,470		1,474
Berkshire Hathaway
3.200%, 02/11/15		1,610		1,708
Berkshire Hathaway Finance
5.400%, 05/15/18		830		949
Boeing Capital
4.700%, 10/27/19		490		547
BPCE
2.375%, 10/04/13 (C)		1,118		1,117
Capital One Bank USA
8.800%, 07/15/19		855		1,093
CDP Financial
3.000%, 11/25/14 (C)		2,450		2,544
Chase Capital VI
0.969%, 08/01/28 (A)		2,500		1,898
Cie de Financement Foncier
2.500%, 09/16/15 (C)		800		805
2.125%, 04/22/13 (C)		700		713
Citigroup
6.875%, 03/05/38		2,626		2,933
6.375%, 08/12/14		781		867
6.125%, 05/15/18		3,970		4,331
6.010%, 01/15/15		660		726
6.000%, 12/13/13		2,250		2,467
6.000%, 08/15/17		750		810
5.875%, 02/22/33		4,485		4,294
5.500%, 02/15/17		2,350		2,427
5.375%, 08/09/20 (D)		1,205		1,247
5.000%, 09/15/14		3,245		3,370
4.750%, 05/19/15		672		707
0.807%, 06/09/16 (A)		3,650		3,093
Citigroup Capital III
7.625%, 12/01/36		1,500		1,599
Citigroup Funding
1.875%, 10/22/12		2,165		2,220
Commonwealth Bank of Australia MTN
5.000%, 10/15/19 (C)		450		488
3.750%, 10/15/14 (C)		1,060		1,133

SEI Institutional Managed Trust / Annual Report / September 30, 2010 73

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Countrywide Financial
6.250%, 05/15/16	$	1,080	$	1,162
5.800%, 06/07/12		2,745		2,916
Countrywide Financial, Ser 2002-E, Cl A
0.597%, 10/15/28 (A)		82		73
Countrywide Home Loans MTN
4.000%, 03/22/11		2,100		2,133
Credit Agricole
8.375%, 12/31/49 (A) (C)		2,460		2,632
Credit Suisse New York
6.000%, 02/15/18		3,258		3,598
Depfa ACS Bank
5.125%, 03/16/37 (C)		890		657
Deutsche Bank MTN
4.875%, 05/20/13		1,830		1,988
Deutsche Bank Capital Funding Trust VII
5.628%, 01/19/49 (A) (C)		2,760		2,387
Dexia Credit Local
2.750%, 04/29/14 (C)		4,895		5,031
East Lane Re
6.344%, 05/06/11 (A) (C)		650		653
Export-Import Bank of Korea
5.500%, 10/17/12		542		580
Farmer Mac Guaranteed Notes Trust 2007-1
5.125%, 04/19/17 (C)		3,540		3,983
Farmers Exchange Capital
7.050%, 07/15/28 (C)		1,434		1,417
Farmers Insurance Exchange
8.625%, 05/01/24 (C)		3,017		3,495
FIH Erhvervsbank
2.000%, 06/12/13 (C)		1,320		1,350
First Industrial L.P. MTN
7.500%, 12/01/17		970		817
Fleet Capital Trust II
7.920%, 12/11/26		1,050		1,079
Ford Motor Credit LLC
8.000%, 12/15/16		480		543
General Electric Capital MTN
6.375%, 11/15/19 (A)		5,870		5,855
6.000%, 08/07/19		710		799
5.900%, 05/13/14		2,800		3,171
5.875%, 01/14/38		1,300		1,320
5.625%, 05/01/18		6,135		6,820
5.500%, 01/08/20 (D)		220		241
5.450%, 01/15/13		20		22
4.375%, 09/16/20		2,460		2,469
2.625%, 12/28/12		3,780		3,941
2.000%, 09/28/12		7,640		7,850
0.727%, 05/05/26 (A)		3,500		2,731
0.595%, 03/20/14 (A)		1,900		1,798

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Glitnir Banki HF
7.451%, 09/14/16 (C) (E)	$	400	$	—
6.693%, 06/15/16 (C) (E)		3,960		—
6.375%, 09/25/12 (C) (E)		2,330		710
6.330%, 07/28/11 (C) (E)		1,980		604
Goldman Sachs Capital II
5.793%, 12/29/49 (A)		200		170
Goldman Sachs Group
7.500%, 02/15/19		2,329		2,771
6.750%, 10/01/37		541		562
6.600%, 01/15/12		180		192
6.150%, 04/01/18		3,780		4,193
6.000%, 06/15/20		2,733		3,006
5.950%, 01/18/18		260		285
5.450%, 11/01/12		4,040		4,357
5.375%, 03/15/20		3,230		3,404
5.350%, 01/15/16		660		726
5.300%, 02/14/12		80		84
5.250%, 10/15/13 (D)		390		424
4.750%, 07/15/13		130		140
3.700%, 08/01/15		845		865
3.625%, 08/01/12		270		281
0.794%, 01/12/15 (A)		1,750		1,674
0.707%, 07/22/15 (A)		500		470
Hartford Financial Services Group
5.500%, 03/30/20		1,020		1,037
HBOS Capital Funding
6.071%, 06/30/49 (A) (C)		1,330		1,170
HBOS PLC
6.750%, 05/21/18 (C)		2,100		2,110
HCP MTN
6.700%, 01/30/18‡		316		348
6.300%, 09/15/16‡		1,191		1,294
6.000%, 01/30/17‡		4,186		4,468
5.650%, 12/15/13‡		934		1,004
Highwoods Properties
7.500%, 04/15/18‡		1,142		1,279
HSBC Bank USA, N.A.
4.875%, 08/24/20		1,075		1,121
HSBC Holdings PLC
6.800%, 06/01/38		1,040		1,206
ICICI Bank
6.375%, 04/30/22 (A) (C)		1,260		1,267
ILFC E-Capital Trust II
6.250%, 12/21/65 (A) (C)		900		607
International Lease Finance
6.500%, 09/01/14		2,530		2,713
Intesa Sanpaolo SPA
3.625%, 08/12/15		900		911
Itau Unibanco Holding MTN
6.200%, 04/15/20 (C) (D)		935		974
JP Morgan Chase Capital XIII
1.239%, 09/30/34 (A)		1,000		755
JP Morgan Chase Capital XXIII
1.376%, 05/15/47 (A)		1,900		1,368

74 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
JP Morgan Chase Capital XXV
6.800%, 10/01/37	$	909	$	927
JPMorgan Chase
6.000%, 01/15/18		225		257
5.750%, 01/02/13		1,710		1,861
4.950%, 03/25/20		150		160
4.750%, 05/01/13		510		554
3.700%, 01/20/15		125		132
JPMorgan Chase Bank
6.000%, 10/01/17		1,323		1,502
6.000%, 07/05/17		2,250		2,547
0.866%, 06/13/16 (A)		1,300		1,232
Kaupthing Bank MTN
7.625%, 02/28/15 (C) (E)		8,810		2,357
7.125%, 05/19/16 (C) (E)		1,350		—
5.750%, 10/04/11 (C) (E)		960		257
Kilroy Realty
6.625%, 06/01/20‡ (C)		455		462
Korea Development Bank
4.375%, 08/10/15 (D)		725		769
3.250%, 03/09/16 (D)		1,192		1,193
Landsbanki Islands
6.100%, 08/25/11 (C) (E)		5,570		599
Lazard Group
7.125%, 05/15/15		967		1,055
6.850%, 06/15/17		1,332		1,426
LBG Capital No.1 MTN
8.000%, 12/15/49 (A)		2,090		1,923
Lehman Brothers Holdings MTN
14.500%, 06/20/16 (A) (E)		3,977		795
11.000%, 11/07/16 (A) (E)		4,283		857
8.910%, 02/16/17 (E)		2,370		474
6.750%, 12/28/17 (E)		4,320		—
6.200%, 09/26/14 (E)		1,160		257
5.250%, 02/06/12 (E)		1,220		270
Lehman Brothers Holdings Capital Trust V MTN
5.857%, 11/29/49 (E)		4,280		—
Liberty Mutual Group
7.500%, 08/15/36 (C)		549		558
Lloyds TSB Bank MTN
6.500%, 09/14/20		635		641
5.800%, 01/13/20 (C)		240		251
4.375%, 01/12/15 (C)		1,070		1,096
Massachusetts Mutual Life Insurance
8.875%, 06/01/39 (C)		1,825		2,494
MBNA Capital A
8.278%, 12/01/26		1,450		1,486
Merrill Lynch MTN
8.950%, 05/18/17 (A)		1,790		1,980
8.680%, 05/02/17 (A)		3,160		3,468
7.430%, 09/01/22		3		3
6.050%, 05/16/16		350		372

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
5.700%, 05/02/17	$	1,300	$	1,344
5.450%, 02/05/13		2,080		2,234
MetLife
7.717%, 02/15/19		210		267
6.750%, 06/01/16		1,060		1,265
6.400%, 12/15/36		570		533
5.875%, 02/06/41		60		65
4.750%, 02/08/21		540		573
MetLife Capital Trust IV
7.875%, 12/15/37 (C)		800		840
MetLife Capital Trust X
9.250%, 04/08/38 (A) (C)		1,800		2,124
Metropolitan Life Global Funding I
5.125%, 04/10/13 (C)		110		120
5.125%, 06/10/14 (C)		2,750		3,051
2.500%, 09/29/15		1,090		1,092
Morgan Stanley
7.300%, 05/13/19		100		115
6.750%, 04/15/11		30		31
6.625%, 04/01/18		3,570		3,958
6.000%, 05/13/14		5,710		6,269
6.000%, 04/28/15		630		693
5.950%, 12/28/17		605		650
5.625%, 09/23/19		160		167
5.550%, 04/27/17		2,415		2,559
5.500%, 07/24/20		1,570		1,617
0.754%, 10/18/16 (A)		5,020		4,412
0.595%, 01/09/14 (A)		3,120		2,949
MUFG Capital Finance 1
6.346%, 07/25/49 (A)		870		872
National Australia Bank
5.350%, 06/12/13 (C)		2,500		2,739
National Capital Trust II
5.486%, 12/29/49 (A) (C)		2,231		2,153
Nationwide Mutual Insurance
6.600%, 04/15/34 (C)		2,440		2,177
5.810%, 06/15/09 (A) (C)		1,975		1,709
NB Capital Trust IV
8.250%, 04/15/27		1,055		1,081
New York Life Global Funding
3.000%, 05/04/15 (C)		1,840		1,919
NIBC Bank MTN
2.800%, 12/02/14 (C)		1,475		1,539
Nordea Bank
4.875%, 01/27/20 (C) (D)		140		152
3.700%, 11/13/14 (C)		2,400		2,535
Northwestern Mutual Life Insurance
6.063%, 03/30/40 (C)		955		1,109
Power Receivables Financial
6.290%, 01/01/12		1,275		1,301
Pricoa Global Funding I
5.450%, 06/11/14 (C)		3,400		3,791
Prime Property Fund
5.600%, 06/15/11 (C)		1,384		1,410
5.500%, 01/15/14‡ (C)		1,850		1,874

SEI Institutional Managed Trust / Annual Report / September 30, 2010 75

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Prudential Holdings
8.695%, 12/18/23 (C)	$	1,300	$	1,648
Qatari Diar Finance QSC
5.000%, 07/21/20		1,220		1,281
Rabobank Nederland
11.000%, 12/31/49 (A) (C)		1,810		2,353
Reckson Operating Partnership
7.750%, 03/15/20‡ (C)		506		512
Residential Capital
9.625%, 05/15/15		15		15
Resona Preferred Global Securities
7.191%, 07/30/49 (A) (C)		580		568
Royal Bank of Scotland Group
7.640%, 09/29/17		1,000		742
6.400%, 10/21/19		2,230		2,427
5.000%, 11/12/13		250		252
5.000%, 10/01/14		990		992
4.875%, 03/16/15		400		421
3.950%, 09/21/15		400		404
Santander US Debt Unipersonal
3.724%, 01/20/15 (C)		1,600		1,623
Shinsei Finance Cayman
6.418%, 01/25/49 (A) (C) (D)		2,710		1,778
Simon Property Group L.P.
5.750%, 12/01/15‡		910		1,036
SLM MTN
5.625%, 08/01/33		695		534
5.375%, 05/15/14 (D)		2,655		2,584
5.050%, 11/14/14		690		657
5.000%, 10/01/13		1,840		1,803
5.000%, 04/15/15		120		115
Sumitomo Mitsui Banking
3.150%, 07/22/15		1,360		1,427
SunTrust Preferred Capital I
5.853%, 12/15/11 (A)		259		193
Svensk Exportkredit
3.250%, 09/16/14		1,489		1,587
Tanger Properties
6.125%, 06/01/20‡		455		497
Teachers Insurance & Annuity Association of America
6.850%, 12/16/39 (C)		2,160		2,658
TNK-BP Finance
7.500%, 07/18/16 (C)		230		255
Travelers
6.250%, 03/15/37 (A)		1,470		1,411
5.375%, 06/15/12		370		395
UBS MTN
4.875%, 08/04/20		320		337
3.875%, 01/15/15		1,320		1,378
UDR MTN
5.000%, 01/15/12‡		2,000		2,035

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Wachovia MTN
5.500%, 05/01/13	$	2,100	$	2,310
5.250%, 08/01/14		2,570		2,794
4.875%, 02/15/14		875		935
Wachovia Bank
6.600%, 01/15/38		705		800
Wachovia Capital Trust III
5.800%, 03/15/11 (A)		1,930		1,694
WEA Finance
7.500%, 06/02/14 (C)		490		570
7.125%, 04/15/18 (C)		3,321		3,906
6.750%, 09/02/19 (C)		1,230		1,457
Wells Fargo Capital X
5.950%, 12/15/36		760		740
Wells Fargo Capital XV
9.750%, 12/31/49 (A)		3,790		4,169
Westfield Capital
4.375%, 11/15/10 (C)		2,103		2,111
Westfield Group
5.400%, 10/01/12 (C)		703		750
Westpac Banking
4.875%, 11/19/19		755		809
3.000%, 08/04/15		1,627		1,662
2.250%, 11/19/12		1,715		1,748
Woodbourne Capital Trust II
1.328%, 04/08/49 (A) (C)		625		269
Woodbourne Capital Trust III
1.328%, 04/08/49 (A) (C)		625		269
Woodbourne Capital Trust IV
1.328%, 04/08/49 (A) (C)		625		269
WR Berkley
5.375%, 09/15/20		415		424
ZFS Finance USA Trust I
6.150%, 12/15/65 (A) (C)		4,272		4,208
				391,470
Government — 0.2%
Chile Government International Bond
3.875%, 08/05/20		1,175		1,219
Kommunalbanken AS
1.750%, 10/05/15		1,138		1,137
Poland Government International Bond
3.875%, 07/16/15		575		598
Province of Quebec
3.500%, 07/29/20		436		447
				3,401
Health Care — 1.0%
Abbott Laboratories
5.300%, 05/27/40		1,195		1,297
Allergan
3.375%, 09/15/20		1,300		1,299

76 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Amgen
5.750%, 03/15/40	$	150	$	170
3.450%, 10/01/20		1,205		1,213
CareFusion
4.125%, 08/01/12		550		575
Coventry Health Care
5.950%, 03/15/17		914		914
FMC Finance III
6.875%, 07/15/17		600		642
GlaxoSmithKline Capital
5.650%, 05/15/18		1,870		2,222
HCA
9.625%, 11/15/16		1		1
7.500%, 11/15/95		3,800		3,002
Hospira
5.600%, 09/15/40		385		399
Humana
7.200%, 06/15/18		1,150		1,331
Life Technologies
6.000%, 03/01/20		368		417
4.400%, 03/01/15		506		540
Medtronic
4.450%, 03/15/20		730		800
Pfizer
5.350%, 03/15/15		140		162
Roche Holdings
6.000%, 03/01/19 (C)		1,410		1,708
Tenet Healthcare
8.875%, 07/01/19		1,695		1,871
UnitedHealth Group
6.875%, 02/15/38		170		203
6.000%, 06/15/17		51		60
WellPoint
6.800%, 08/01/12		1,000		1,097
6.375%, 06/15/37		535		597
5.875%, 06/15/17		2,190		2,524
Wyeth
5.950%, 04/01/37		1,100		1,298
				24,342
Industrials — 1.2%
Allied Waste North America
6.875%, 06/01/17		260		287
Boeing
4.875%, 02/15/20		1,380		1,576
Burlington Northern Santa Fe
5.750%, 05/01/40		997		1,100
Cedar Brakes I LLC
8.500%, 02/15/14 (C)		941		972
Complete Production Services
8.000%, 12/15/16		1,005		1,035
Continental Airlines
9.000%, 07/08/16 (D)		2,879		3,282

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Continental Airlines, Ser 1999-2
7.256%, 03/15/20	$	2,805	$	2,938
Continental Airlines, Ser A
5.983%, 04/19/22 (D)		2,000		2,065
Delta Air Lines
6.821%, 08/10/22 (D)		1,544		1,619
Delta Air Lines, Ser 2001-1
7.111%, 09/18/11		1,575		1,646
General Electric
5.000%, 02/01/13		140		152
Hutchison Whampoa International 09
4.625%, 09/11/15 (C)		1,805		1,930
JetBlue Airways 2004-2 G-1 Pass Through Trust
0.811%, 08/15/16 (A)		3,270		2,955
Kansas City Southern de Mexico
12.500%, 04/01/16		522		625
L-3 Communications
5.875%, 01/15/15		300		307
RailAmerica
9.250%, 07/01/17		1,008		1,105
Reynolds Group Issuer
7.750%, 10/15/16 (C) (D)		1,720		1,750
Systems 2001 Asset Trust
6.664%, 09/15/13 (C)		956		1,055
United Air Lines
9.750%, 01/15/17		609		672
United Parcel Service
4.500%, 01/15/13		980		1,061
				28,132
Information Technology — 0.3%
Adobe Systems
4.750%, 02/01/20		402		433
Cisco Systems
5.900%, 02/15/39		205		237
5.500%, 01/15/40		570		626
4.450%, 01/15/20		1,295		1,423
Freescale Semiconductor
10.125%, 12/15/16		60		55
Hewlett-Packard
2.125%, 09/13/15		1,580		1,594
National Semiconductor
6.600%, 06/15/17		170		198
Oracle
5.375%, 07/15/40 (C)		2,014		2,166
				6,732
Materials — 0.9%
Alcoa
6.000%, 07/15/13		170		185
Ball
6.750%, 09/15/20		1,060		1,124

SEI Institutional Managed Trust / Annual Report / September 30, 2010 77

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
CodelCo
4.750%, 10/15/14 (C)	$	470	$	512
Dow Chemical
8.550%, 05/15/19		2,235		2,822
5.900%, 02/15/15		625		697
4.850%, 08/15/12		1,140		1,207
Freeport-McMoRan Copper & Gold
8.375%, 04/01/17		4,790		5,347
PPG Industries
6.650%, 03/15/18		435		527
5.750%, 03/15/13		435		476
Rio Tinto Finance USA
6.500%, 07/15/18		3,480		4,197
5.875%, 07/15/13		813		906
Steel Dynamics
6.750%, 04/01/15		810		828
Teck Resources
10.750%, 05/15/19		83		105
10.250%, 05/15/16		52		63
Vale Overseas
8.250%, 01/17/34		195		248
6.875%, 11/21/36		1,300		1,485
6.875%, 11/10/39		327		375
4.625%, 09/15/20		600		620
				21,724
Sovereign — 0.3%
Province of Ontario Canada
4.400%, 04/14/20		115		127
4.100%, 06/16/14		270		297
2.950%, 02/05/15		2,080		2,202
Qatar Govt International Bond
4.000%, 01/20/15 (C)		1,940		2,047
RSHB Capital
6.299%, 05/15/17 (C)		700		730
Russian Foreign Bond - Eurobond
7.500%, 03/31/30		152		182
3.625%, 04/29/15 (C)		600		604
United Mexican States MTN
6.050%, 01/11/40		248		284
United Mexican States MTN, Ser A
7.500%, 04/08/33		176		233
6.750%, 09/27/34		748		930
				7,636
Telecommunication Services — 1.9%
America Movil
6.125%, 03/30/40		159		177
5.625%, 11/15/17		440		496
5.000%, 10/16/19		849		910
5.000%, 03/30/20		750		809
American Tower
5.050%, 09/01/20		304		312

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
AT&T
6.500%, 09/01/37	$	1,380	$	1,597
6.450%, 06/15/34		625		704
6.300%, 01/15/38		1,190		1,344
5.500%, 02/01/18		1,360		1,577
5.100%, 09/15/14		2,200		2,470
AT&T Mobility LLC
6.500%, 12/15/11		1,455		1,552
BellSouth
4.750%, 11/15/12 (D)		170		183
British Telecommunications PLC
9.625%, 12/15/30		357		497
9.125%, 12/15/10		1,250		1,270
Cellco Partnership
8.500%, 11/15/18		610		831
7.375%, 11/15/13		275		325
3.750%, 05/20/11		1,300		1,326
Cricket Communications
7.750%, 05/15/16		840		891
Deutsche Telekom International Finance
5.750%, 03/23/16		1,920		2,215
France Telecom
7.750%, 03/01/11		554		570
Frontier Communications
8.500%, 04/15/20		520		574
8.250%, 04/15/17		585		640
8.125%, 10/01/18		355		388
Intelsat Jackson Holdings
9.500%, 06/15/16		180		192
8.500%, 11/01/19 (C)		250		271
Koninklijke
8.000%, 10/01/10		650		650
New Cingular Wireless Services
8.125%, 05/01/12		1,595		1,772
Qwest
7.500%, 10/01/14		741		837
Rogers Communications
7.875%, 05/01/12		550		607
6.800%, 08/15/18		450		557
6.750%, 03/15/15		1,015		1,207
6.375%, 03/01/14		1,476		1,700
5.500%, 03/15/14		201		225
Sprint Capital
8.750%, 03/15/32		660		693
8.375%, 03/15/12		245		263
Telecom Italia Capital
6.999%, 06/04/18		370		425
6.200%, 07/18/11		1,730		1,792
5.250%, 11/15/13		790		849
5.250%, 10/01/15		90		97
4.950%, 09/30/14		1,250		1,331
Telefonica Emisiones SAU
6.221%, 07/03/17		110		129
5.984%, 06/20/11		720		747
5.134%, 04/27/20		2,177		2,368

78 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Telemar Norte Leste SA
5.500%, 10/23/20 (C)	$	1,135	$	1,149
Verizon Communications
6.400%, 02/15/38		540		627
6.250%, 04/01/37		335		379
6.100%, 04/15/18		465		553
5.500%, 02/15/18		1,920		2,209
Verizon Global Funding
7.750%, 12/01/30		1,060		1,369
Verizon New York, Ser A
6.875%, 04/01/12		660		712
Virgin Media Finance PLC
9.125%, 08/15/16		70		75
				45,443
Utilities — 2.5%
Aquila
11.875%, 07/01/12		2,535		2,917
Calpine Construction Finance
8.000%, 06/01/16 (C)		975		1,043
Cedar Brakes II LLC
9.875%, 09/01/13 (C)		1,394		1,455
Dominion Resources
8.875%, 01/15/19		1,635		2,224
4.750%, 12/15/10		935		943
DPL
6.875%, 09/01/11		1,098		1,156
Duke Energy
6.300%, 02/01/14		978		1,117
Duke Energy Carolinas
5.625%, 11/30/12		1,470		1,607
Edison Mission Energy
7.625%, 05/15/27		420		282
Enel Finance International
6.000%, 10/07/39 (C)		1,740		1,799
Energy Future Holdings
10.000%, 12/01/20		4,766		4,730
11.250%, 11/01/17		1,990		950
Exelon
5.625%, 06/15/35		1,100		1,113
Exelon Generation
6.250%, 10/01/39		360		386
5.750%, 10/01/41		295		296
5.200%, 10/01/19		40		44
4.000%, 10/01/20		945		946
FirstEnergy Solutions
6.800%, 08/15/39		430		433
6.050%, 08/15/21		795		849
FirstEnergy, Ser B
6.450%, 11/15/11		23		24
FirstEnergy, Ser C
7.375%, 11/15/31		3,255		3,537
Florida Power
6.400%, 06/15/38		240		297

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
KCP&L Greater Missouri Operations
8.270%, 11/15/21	$	2,700	$	3,163
Korea Hydro & Nuclear Power
3.125%, 09/16/15 (D)		720		719
Midamerican Energy Holdings
6.500%, 09/15/37		1,575		1,891
Nevada Power, Ser A
8.250%, 06/01/11		1,655		1,731
Nisource Finance
6.800%, 01/15/19		2,261		2,682
Oncor Electric Delivery
6.800%, 09/01/18		1,075		1,317
Pacific Gas & Electric
8.250%, 10/15/18		210		279
6.050%, 03/01/34		660		748
5.800%, 03/01/37		800		888
3.500%, 10/01/20		655		649
Pacificorp
6.250%, 10/15/37		300		363
Panhandle Eastern Pipeline
8.125%, 06/01/19		2,500		3,030
Progress Energy
6.850%, 04/15/12		516		559
Public Service of New Mexico
7.950%, 05/15/18		1,805		1,992
PVNGS II Funding
8.000%, 12/30/15		2,188		2,306
South Carolina Electric & Gas
6.500%, 11/01/18		215		267
Southern California Edison
4.500%, 09/01/40		485		474
Tennessee Valley Authority
5.250%, 09/15/39		880		1,021
4.625%, 09/15/60		1,370		1,427
Texas-New Mexico Power
9.500%, 04/01/19 (C)		2,880		3,787
				57,441
Total Corporate Obligations (Cost $734,566) ($ Thousands)				751,029
ASSET-BACKED SECURITIES — 6.9%
Automotive — 0.2%
Avis Budget Rental Car Funding AESOP, Ser 2010-3A, Cl A
4.640%, 05/20/16 (C)		860		916
Harley-Davidson Motorcycle Trust, Ser 2009-2, Cl A4
3.320%, 02/15/17		102		106
Hertz Vehicle Financing, Ser 2009-2A, Cl A2
5.290%, 03/25/16 (C)		1,470		1,622

SEI Institutional Managed Trust / Annual Report / September 30, 2010 79

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Honda Auto Receivables Owner Trust, Ser 2009-3, Cl A3
2.310%, 05/15/13	$	1,055	$	1,071
				3,715
Credit Cards — 0.8%
BA Credit Card Trust, Ser 2006-A14, Cl A14
0.317%, 04/15/16 (A)		788		781
Capital One Multi-Asset Execution Trust, Ser 2005-A10, Cl A
0.337%, 09/15/15 (A)		505		502
Capital One Multi-Asset Execution Trust, Ser 2006-A12, Cl A
0.317%, 07/15/16 (A)		1,466		1,449
Capital One Multi-Asset Execution Trust, Ser 2006-A4, Cl A4
0.297%, 12/16/13 (A)		1,938		1,937
Capital One Multi-Asset Execution Trust, Ser 2006-A5, Cl A5
0.616%, 01/15/16 (A)		602		596
Chase Issuance Trust, Ser 2007-A17, Cl A
5.120%, 10/15/14		2,510		2,731
Citibank Credit Card Issuance Trust, Ser 2005-A2, Cl A2
4.850%, 03/10/17		200		226
Citibank Credit Card Issuance Trust, Ser 2009-A5, Cl A5
2.250%, 12/23/14		2,520		2,593
Discover Card Master Trust, Ser 2009-A2, Cl A
1.557%, 02/17/15 (A)		4,551		4,631
Discover Card Master Trust, Ser 2010-A2, Cl A2
0.837%, 03/15/18 (A)		838		838
MBNA Credit Card Master Note Trust, Ser 2006-A5, Cl A5
0.317%, 10/15/15 (A)		2,043		2,027
				18,311
Mortgage Related Securities — 1.2%
ABS Home Equity Loan Trust, Ser 2001-HE3, Cl A1
0.890%, 11/25/31 (A)		356		306
AFC Home Equity Loan Trust, Ser 1998-1, Cl 1A2
0.613%, 04/25/28 (A)		70		50
AFC Home Equity Loan Trust, Ser 2000-1, Cl 2A
0.587%, 03/25/30 (A)		3,339		1,066
Asset-Backed Securities Home Equity, Ser 2003-HE4, Cl M2
3.337%, 08/15/33 (A)		150		62

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Bear Stearns Asset-Backed Securities Trust, Ser 2000-2, Cl M2
8.280%, 08/25/30	$	3,824	$	3,725
Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE2, Cl 1A1
0.443%, 03/25/37 (A)		2,549		2,353
BNC Mortgage Loan Trust, Ser 2007-1, Cl M1
0.583%, 03/25/37 (A)		6,300		235
Centex Home Equity, Ser 2006-A, Cl AV4
0.593%, 06/25/36 (A)		4,917		3,089
Citigroup Mortgage Loan Trust, Ser 2007-AHL1, Cl A2A
0.387%, 12/25/36 (A)		208		195
Conseco Finance, Ser 2001-D, Cl A5
6.190%, 11/15/32 (A)		1,053		1,081
Contimortgage Home Equity Trust, Ser 1997-1, Cl A9
7.050%, 03/15/28		4		4
Contimortgage Home Equity Trust, Ser 1997-2, Cl A9
7.090%, 04/15/28		8		8
EMC Mortgage Loan Trust, Ser 2002-AA, Cl A1
0.817%, 05/25/39 (A) (C)		1,474		1,204
Morgan Stanley Capital I, Ser 2007-HE2, Cl A2A
0.387%, 01/25/37 (A)		88		87
Morgan Stanley Dean Witter Capital I, Ser 2003-NC4, Cl M2
3.347%, 04/25/33 (A)		75		34
Morgan Stanley Home Equity Loans, Ser 2007-1, Cl A1
0.397%, 12/25/36 (A)		76		74
Nationstar Home Equity Loan Trust, Ser 2007-C, Cl 2AV2
0.473%, 06/25/37 (A)		5,500		4,139
Option One Mortgage Loan Trust, Ser 2001-4, Cl A
0.947%, 01/25/32 (A)		309		266
Option One Mortgage Loan Trust, Ser 2007-1, Cl 2A3
0.487%, 01/25/37 (A)		9,500		3,929
Option One Mortgage Loan Trust, Ser 2007-6, Cl 2A4
0.593%, 07/25/37 (A)		4,574		1,933
Residential Funding Mortgage Securities II, Ser 2000-HI1, Cl AI7
8.790%, 02/25/25		1,168		1,095
Soundview Home Equity Loan Trust, Ser 2006-EQ2, Cl A3
0.503%, 01/25/37 (A)		6,450		2,794

80 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Terwin Mortgage Trust, Ser 2005-9HG3, Cl A1
4.000%, 08/25/35 (A) (C)	$	375	$	364
Truman Capital Mortgage Loan Trust, Ser 2006-1, Cl A
0.603%, 03/25/36 (A) (C)		413		248
Wells Fargo Home Equity Trust, Ser 2004-2, Cl M8B
5.000%, 05/25/34 (A) (C)		290		87
				28,428
Other Asset-Backed Securities — 4.7%
Aircastle Aircraft Lease Backed Trust, Ser 2007-1A, Cl G1
0.517%, 06/14/37 (A) (C)		2,792		2,359
Babcock & Brown Air Funding I, Ser 2007-1A, Cl G1
0.650%, 11/14/33 (A) (C)		3,438		2,849
Bank America Manufactured Housing Contract Trust, Ser 1997-1, Cl M
6.800%, 01/10/28		3,310		4,152
CenterPoint Energy Transition Bond, Ser 2001-1, Cl A4
5.630%, 09/15/15		1,878		2,048
Chase Funding Mortgage Loan Asset-Backed Certificates, Ser 2002-1, Cl 2A2
0.847%, 03/25/32 (A)		1,276		853
Citicorp Residential Mortgage Securities, Ser 2007-1, Cl A5
6.046%, 03/25/37		1,970		1,640
Conseco Finance Home Loan Trust, Ser 2000-E, Cl M1
8.130%, 08/15/31 (A)		834		823
Conseco Finance Securitizations, Ser 2000-4, Cl A6
8.310%, 05/01/32 (A)		1,177		965
Countrywide Asset-Backed Certificates, Ser 2003-BC2, Cl 2A1
0.947%, 06/25/33 (A)		38		34
Countrywide Asset-Backed Certificates, Ser 2005-17, Cl 1AF3
5.711%, 05/25/36 (A)		6,450		2,652
Countrywide Asset-Backed Certificates, Ser 2005-4, Cl MV1
0.803%, 10/25/35 (A)		5,026		4,878
Countrywide Asset-Backed Certificates, Ser 2006-10, Cl MV1
0.603%, 09/25/46 (A)		10,450		500
Countrywide Asset-Backed Certificates, Ser 2007-13, Cl 2A2
1.143%, 10/25/47 (A)		5,134		3,724

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Countrywide Asset-Backed Certificates, Ser 2007-S2, Cl A2
5.649%, 05/25/37 (A)	$	1,789	$	1,190
Countrywide Home Equity Loan Trust, Ser 2004-K, Cl A2
1.136%, 02/15/34 (A)		985		466
Countrywide Home Equity Loan Trust, Ser 2005-F, Cl 2A
0.590%, 12/15/35 (A)		1,836		501
Countrywide Home Equity Loan Trust, Ser 2006-HW, Cl 2A1B
0.404%, 11/15/36 (A)		245		178
Countrywide Home Equity Loan Trust, Ser 2007-GW, Cl A
0.887%, 11/15/28 (A)		9,897		7,946
Credit Suisse First Boston Mortgage Securities, Ser 2001-MH29, Cl A
5.600%, 09/25/31		571		584
Credit-Based Asset Servicing and Securitization, Ser 2007-CB4, Cl A1A
0.437%, 04/25/37 (A)		1,490		1,190
EFS Volunteer, Ser 2010-1, Cl A2
1.389%, 10/25/35 (A) (C)		900		885
Embarcadero Aircraft Securitization Trust, Ser 2000-A, Cl A1
0.817%, 08/15/25 (A) (C)		2,578		1,289
First Franklin Mortgage Loan Asset-Backed Certificates, Ser 2005-FF10, Cl A4
0.663%, 11/25/35 (A)		5,287		4,469
First Franklin Mortgage Loan Asset-Backed Certificates, Ser 2006-FFA, Cl A3
0.467%, 09/25/26 (A)		4,148		527
First Horizon ABS Trust, Ser 2004-HE2, Cl A
0.567%, 02/25/34 (A)		1,165		699
GE Seaco Finance Srl, Ser 2005-1A, Cl A
0.600%, 11/17/20 (A) (C)		4,069		3,789
Genesis Funding, Ser 2006-1A, Cl G1
0.497%, 12/19/32 (A) (C)		2,983		2,513
Green Tree Financial, Ser 1993-4, Cl A5
7.050%, 01/15/19		196		201
Green Tree Financial, Ser 1996-5, Cl A6
7.750%, 07/15/27		614		631
GSAMP Trust, Ser 2003-SEA, Cl A1
0.747%, 02/25/33 (A)		2,722		2,031
GSAMP Trust, Ser 2006-SEA1, Cl A
0.643%, 05/25/36 (A) (C)		579		480

SEI Institutional Managed Trust / Annual Report / September 30, 2010 81

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
HSI Asset Securitization Trust, Ser 2005-I1, Cl 2A3
0.637%, 11/25/35 (A)	$	4,571	$	3,326
Lehman XS Trust, Ser 2005-5N, Cl 1A1
0.647%, 11/25/35 (A)		1,745		1,236
Lehman XS Trust, Ser 2006-GP1, Cl A4A
0.677%, 05/25/46 (A)		5,488		1,818
Lehman XS Trust, Ser 2007-1, Cl WF1
7.000%, 01/25/37		2,199		1,293
Lehman XS Trust, Ser 2007-9, Cl 1A1
0.463%, 05/25/37 (A)		6,443		3,756
Master Specialized Loan Trust, Ser 2007-2, Cl A
0.693%, 05/25/37 (A) (C)		7,532		3,712
Merrill Lynch Mortgage Investors, Ser 2005-SL3, Cl A1
0.573%, 07/25/36 (A)		115		111
Merrill Lynch Mortgage Investors, Ser 2006-WMC2, Cl A2D
5.895%, 03/25/37		4,927		2,239
Merrill Lynch Mortgage Investors, Ser 2007-MLN1, Cl M1
0.743%, 03/25/37 (A)		3,010		29
Merrill Lynch Mortgage Investors, Ser 2007-SL1, Cl A1
0.643%, 02/25/37 (A)		6,022		185
Mid-State Trust, Ser 2003-11, Cl A1
4.864%, 07/15/38		3,262		3,284
Morgan Stanley Dean Witter Capital Heloc Trust, Ser 2005-1, Cl A
0.537%, 07/25/17 (A)		492		347
Nelnet Student Loan Trust, Ser 2008-3, Cl A4
1.968%, 11/25/24 (A)		3,013		3,126
Nelnet Student Loan Trust, Ser 2008-4, Cl A4
1.796%, 04/25/24 (A)		2,740		2,824
PG&E Energy Recovery Funding, Ser 2005-1, Cl A5
4.470%, 12/25/14		830		889
PG&E Energy Recovery Funding, Ser 2005-1, Cl A4
4.370%, 06/25/14		580		601
Residential Asset Mortgage Products, Ser 2003-RS11, Cl MII1
1.438%, 12/25/33 (A)		188		143
Residential Asset Mortgage Products, Ser 2003-RS2, Cl AII
1.023%, 03/25/33 (A)		53		33
Saco I, Ser 2005-9, Cl A1
0.597%, 12/25/35 (A)		731		248
Saco I, Ser 2005-WM3, Cl A1
0.867%, 09/25/35 (A)		759		322

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Saco I, Ser 2006-6, Cl A1
0.477%, 06/25/36 (A)	$	1,895	$	426
SLC Student Loan Trust, Ser 2008-1, Cl A4A
2.137%, 12/15/32 (A)		4,348		4,518
SLM Student Loan Trust, Ser 2003-11, Cl A6
0.582%, 12/15/25 (A) (C)		1,100		1,096
SLM Student Loan Trust, Ser 2005-10, Cl A4
0.608%, 10/25/19 (A)		1,489		1,478
SLM Student Loan Trust, Ser 2006-5, Cl A5
0.608%, 01/25/27 (A)		1,540		1,455
SLM Student Loan Trust, Ser 2008-4, Cl A4
1.966%, 07/25/22 (A)		620		648
SLM Student Loan Trust, Ser 2008-5, Cl A4
2.016%, 07/25/23 (A)		1,803		1,889
Small Business Administration, Ser 2003-P10A, Cl 1
4.524%, 02/01/13		479		502
Structured Asset Investment Loan Trust, Ser 2003-BC4, Cl M2
3.343%, 06/25/33 (A)		79		55
Structured Asset Securities, Ser 2007-BC2, Cl A2
0.433%, 03/25/37 (A)		2,487		2,425
Structured Asset Securities, Ser 2007-TC1, Cl A
0.643%, 04/25/31 (A) (C)		390		284
Structured Asset Securities, Ser 2008-BC4, Cl A3
0.512%, 11/25/37 (A)		3,477		3,322
Student Loan Consolidation Center, Ser 2002-2, Cl A13
0.000%, 07/01/42 (A) (C)		1,000		915
Textainer Marine Containers, Ser 2005-1A, Cl A
0.507%, 05/15/20 (A) (C)		2,112		1,954
Triton Container Finance, Ser 2006-1A, Cl N
0.517%, 11/26/21 (A) (C)		2,713		2,441
Triton Container Finance, Ser 2007-1A, Cl N
0.396%, 02/26/19 (A) (C)		1,711		1,581
				111,557
Total Asset-Backed Securities (Cost $216,532) ($ Thousands)				162,011
U.S. GOVERNMENT AGENCY OBLIGATIONS — 1.9%
FICO
9.800%, 04/06/18		850		1,276
9.700%, 04/05/19		1,050		1,596
8.600%, 09/26/19		2,490		3,599

82 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FICO STRIPS
2.598%, 12/27/15 (B)	$	1,745	$	1,583
1.847%, 02/08/13 (B)		2,225		2,176
0.000%, 02/08/18 to 09/26/19 (B)		11,780		9,604
FNMA
7.918%, 10/09/19 (B)		1,520		1,004
7.250%, 05/15/30		2,372		3,452
7.125%, 01/15/30		2,100		3,004
6.250%, 05/15/29		2,949		3,855
5.500%, 11/01/37		9,000		9,558
5.250%, 08/01/12		1,860		2,007
0.240%, 05/09/11 (B)		400		400
Resolution Funding STRIPS
3.235%, 01/15/16 (B)		2,730		2,485
Total U.S. Government Agency Obligations (Cost $42,472) ($ Thousands)				45,599
LOAN PARTICIPATIONS — 0.9%
Allison Transmission
3.110%, 08/07/14		901		844
3.050%, 08/07/14		34		32
Aramark
2.164%, 01/26/14		135		128
0.192%, 01/26/14		17		16
Aramark LOC
0.106%, 01/26/14		12		11
Aramark, Term B Loan
3.783%, 07/26/16		267		262
Charter Communications, Term C Loan
3.790%, 09/06/16		1,302		1,269
DAE Aviation, Tranche B-1
4.090%, 07/31/14		287		268
DAE Aviation, Tranche B-2
4.090%, 09/27/14		278		260
3.990%, 09/27/14		1		1
Enterprise GP Holdings
2.600%, 11/10/14		392		389
2.545%, 11/10/14		588		584
First Data, Term Loan B-2
3.097%, 09/24/14		3,580		3,149
Harrah’s Operating, Term Loan B-2
3.316%, 01/28/15		605		521
HCR Healthcare, Initial Term Loan
2.756%, 12/22/14		854		820
IASIS, Delayed Draw
2.256%, 03/15/14		234		225
IASIS, Sythentic LOC
2.347%, 03/15/14		64		61
IASIS, Term B Loan
2.256%, 03/15/14		676		650
Insight Midwest
2.280%, 04/07/14		204		196

Description	Face Amount ($ Thousands)/Shares		Market Value ($ Thousands)
Insight Midwest Holdings, Term B Loan
2.010%, 04/07/14	$	416	$	399
Las Vegas Sands, Delayed Draw
2.100%, 05/17/14		236		218
Las Vegas Sands, Term B Loan
2.100%, 05/17/14		1,042		965
Regal Cinemas
3.789%, 11/19/16		376		374
Sunguard
4.060%, 02/28/16		80		78
3.999%, 02/28/16		1,094		1,073
SuperMedia
11.000%, 12/31/15		363		283
Telesat Canada, U.S. Term I Loan
3.260%, 10/31/14		1,041		1,012
Telesat Canada, U.S. Term II Loan
3.260%, 10/31/14		89		87
Texas Competitive
3.850%, 10/10/14		164		127
3.758%, 10/10/14		729		566
Texas Competitive, Term Loan B-2
4.066%, 10/10/14		1,043		810
4.033%, 10/10/14		10		8
Tomkins PLC, Term B Loan
0.000%, 09/07/16 (G)		500		504
Tribune
0.000%, 06/04/10 (G)		366		232
United Air Lines, Tranche B
2.312%, 02/01/14		691		648
Univision Communications
2.597%, 09/29/14		2,468		2,168
UPC Financing Partnership
4.251%, 12/30/16		352		341
2.501%, 12/31/14		648		621
Total Loan Participations (Cost $21,747) ($ Thousands)				20,200
MUNICIPAL BONDS — 0.7%
Brazos Higher Education Authority, Ser 2006-2, RB
1.757%, 06/25/42 (A)		1,250		1,075
County of Clark Nevada, Ser C-BUILD, RB
6.820%, 07/01/45		710		787
Kentucky Higher Education Student Loan, Ser 1-CL, RB
1.450%, 05/01/34 (A)		1,100		1,104
Los Angeles Community College District, GO
6.750%, 08/01/49		600		671
Municipal Electric Authority of Georgia, RB
6.655%, 04/01/57		320		339
6.637%, 04/01/57		570		613

SEI Institutional Managed Trust / Annual Report / September 30, 2010 83

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Continued)

September 30, 2010

Description Face Amount
($ Thousand)/Shares Market Value
($ Thousands)

North Texas Tollway Authority, RB
6.718%, 01/01/49	$	660	$	721
Pennsylvania Higher Education Assistance Agency, Sub-Ser, RB
1.130%, 05/01/46 (A)		5,375		4,757
State of California, GO
7.300%, 10/01/39		4,110		4,350
State of Illinois, GO
7.350%, 07/01/35		2,500		2,624
Total Municipal Bonds (Cost $16,461) ($ Thousands)				17,041
PREFERRED STOCK — 0.1%
Citigroup Capital XII 8.500%, 03/30/15 (A)		53		1,402
Citigroup Capital XIII 7.875%, 10/30/15 (A)		20		502
Total Preferred Stock (Cost $1,829) ($ Thousands)				1,904
	Number of Warrants
WARRANT — 0.0%
Semgroup Warrants, Expires 2014*		1		7
Total Warrant (Cost $—) ($ Thousands)				7
COMMON STOCK — 0.0%
SemGroup, Cl A*		1,294		30
SuperMedia* (D)		1,802		19
Total Common Stock (Cost $98) ($ Thousands)				49
U.S. TREASURY OBLIGATIONS — 14.7%
U.S. Treasury Bills
0.179%, 02/10/11		890		890
U.S. Treasury Bonds
8.000%, 11/15/21		11,105		16,749
7.625%, 02/15/25		4,515		6,931
7.125%, 02/15/23 (D)		534		770
6.250%, 08/15/23		1,640		2,221
5.375%, 02/15/31		3,466		4,462
4.625%, 02/15/40		2,818		3,293
4.500%, 02/15/36		4,573		5,258
4.375%, 11/15/39 to 05/15/40 (D)		30,185		33,892
4.250%, 05/15/39		1,418		1,559
3.875%, 08/15/40 (D)		15,696		16,226
U.S. Treasury Bond TIPS
3.875%, 04/15/29		504		701
3.625%, 04/15/28		2,331		2,717
3.500%, 01/15/11		3,883		3,918
2.375%, 01/15/25 to 01/15/27		16,343		18,795
2.125%, 02/15/40		6,319		7,061

Description Face Amount
($ Thousand)/
Shares/Contracts Market Value
($ Thousands)

2.000%, 01/15/16 to 01/15/26	$	5,867		$	6,431
1.750%, 01/15/28		52			55
U.S. Treasury Note
4.875%, 08/15/16		1,726			2,049
3.500%, 05/15/20 (D)		7,339			7,966
2.625%, 08/15/20 (D)		6,883			6,948
2.125%, 11/30/14		30,085			31,443
1.875%, 06/30/15 to 09/30/17		40,764			41,698
1.750%, 07/31/15		3,020			3,093
1.375%, 01/15/13		5,850			5,966
1.250%, 08/31/15 to 09/30/15 (D)		33,608			33,562
1.000%, 08/31/11 to 04/30/12		41,025			41,388
0.875%, 04/30/11		11,605			11,649
0.750%, 05/31/12 to 09/15/13		11,036			11,096
U.S. Treasury STRIPS
4.712%, 11/15/27 (B)		16,990			9,317
4.610%, 02/15/25 (B)		11,400			7,050
Total U.S. Treasury Obligations (Cost $331,225) ($ Thousands)					345,154
CASH EQUIVALENT — 5.4%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% †**		127,107,961			127,108
Total Cash Equivalent (Cost $127,108) ($ Thousands)					127,108
AFFILIATED PARTNERSHIP — 1.7%
SEI Liquidity Fund, L.P., 0.230%†** (F)		43,589,328			40,213
Total Affiliated Partnership (Cost $43,589) ($ Thousands)					40,213
Total Investments — 110.6% (Cost $2,615,329) ($ Thousands)				$	2,602,217
WRITTEN OPTIONS — 0.0%
December 2010 U.S. 10 Year Note Call, Expires 11/27/10, Strike Price $127.00*		(210	)	$	(200	)
December 2010 U.S. 10 Year Note Future Put, Expires 11/29/10, Strike Price $122.00*		(72	)		(16	)
December 2010 U.S. 10 Year Note Future Put, Expires 11/29/10, Strike Price 121.00*		(55	)		(7	)
December 2010 U.S. Long Bond Future Call, Expires 11/29/10, Strike Price $134.00*		(80	)		(216	)
November 2010 U.S. Bond Future Call, Expires 10/25/10, Strike Price 134.00*		(30	)		(45	)
Total Written Options (Premiums Received $(401)) ($ Thousands)				$	(484	)

84 SEI Institutional Managed Trust / Annual Report / September 30, 2010

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)			Expiration Date		Unrealized Appreciation (Depreciation) ($ Thousands)
90-Day Euro$		(17	)		Dec-2010	$	(183	)
90-Day Euro$		139			Dec-2011		60
90-Day Euro$		(139	)		Dec-2012		(119	)
90-Day Euro$		(17	)		Jun-2011		(183	)
90-Day Euro$		(17	)		Mar-2011		(183	)
U.S. 10-Year Treasury Note		(543	)		Dec-2010		(289	)
U.S. 2-Year Treasury Note		(78	)		Dec-2010		(18	)
U.S. 5-Year Treasury Note		651			Dec-2010		698
U.S. Long Treasury Bond		(174	)		Dec-2010		(382	)
U.S. Ultra Long Treasury Bond		298			Jan-2011		436
						$	(163	)

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

A summary of the outstanding forward foreign currency contracts held by the Fund at September 30, 2010, is as follows:

Counterparty	Maturity Date		Currency to Deliver (Thousands)			Currency to Receive (Thousands)			Unrealized Depreciation ($ Thousands)
UBS Securities		11/24/10		EUR	2,027		USD	2,683	$	(82	)
Citigroup Global Markets		11/24/10		EUR	14,780		USD	19,420		(746	)
									$	(828	)

A summary of outstanding swap agreements held by the Fund at September 30, 2010, is as follows:

Credit Default Swaps
Counterparty	Reference Entity/Obligation	Buy/Sell Protection	(Pays)/ Receives Rate			Termination Date		Notional Amount (Thousands)			Net Unrealized Appreciation (Depreciation) ($Thousands)
Bank of America	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		245		$	(115	)
Bank of America	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		2,750			(1,313	)
Bank of America	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		2,900			(1,385	)
Barclays Bank PLC	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		2,590			(1,251	)
Citigroup	Darden Restaurants Inc., 6.000% 08/15/35	BUY		(2.73	)		03/20/14		440			(28	)
Citigroup	Darden Restaurants Inc., 7.125% 02/01/16	BUY		(2.40	)		03/20/15		800			(46	)
Citigroup	DR Horton Inc., 5.375% 6/15/12	BUY		(1.00	)		09/20/16		520			32
Citigroup	DR Horton Inc., 5.375% 6/15/12	BUY		(1.00	)		09/20/16		480			30
Citigroup	Home Depot, 5.875% 12/16/36	BUY		(2.67	)		03/20/14		2,900			(210	)
Citigroup	Lowes Cos. Inc., 8.250% 06/01/10	BUY		(1.20	)		03/20/14		3,025			(64	)
Credit Suisse	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		7,735			(3,643	)
Credit Suisse	General Electric Corp., 5.625% 09/15/17	SELL		6.55			12/20/10		(1,480	)		21
Credit Suisse	Pulte Homes, Inc., 5.250% 1/15/14	BUY		(1.00	)		09/20/16		1,500			119
Credit Suisse	Toll Brothers Inc., 5.150% 05/15/15	BUY		(1.00	)		09/20/16		1,210			81
Credit Suisse	Toll Brothers Inc., 5.150% 05/15/15	BUY		(1.00	)		09/20/16		4,885			325
Deutsche Bank	Centex Corporation, 5.250% 06/15/15	BUY		(4.40	)		12/20/13		125			(11	)
Deutsche Bank	Darden Restaurants Inc., 6.000% 08/15/35	BUY		(2.25	)		03/20/14		1,075			(50	)
Deutsche Bank	Darden Restaurants Inc., 7.125% 02/01/16	BUY		(2.25	)		03/20/13		400			(15	)
Deutsche Bank	DR Horton Inc., 5.375% 6/15/12	BUY		(1.00	)		09/20/16		410			20
Deutsche Bank	DR Horton Inc., 5.375% 6/15/12	BUY		(1.00	)		09/20/16		375			18
Deutsche Bank	Pulte Homes, Inc., 5.250% 1/15/14	BUY		(1.00	)		09/20/16		2,200			178
Deutsche Bank	Pulte Homes, Inc., 5.250% 1/15/14	BUY		(1.00	)		09/20/16		1,500			143
Deutsche Bank	Target Corporation, 4.000% 6/15/13	BUY		(1.00	)		12/20/14		655			(5	)
Deutsche Bank	Target Corporation, 4.000% 6/15/13	BUY		(1.00	)		12/20/14		655			(5	)
Deutsche Bank	Target Corporation, 4.000% 6/15/13	BUY		(1.00	)		12/20/14		600			(4	)
Deutsche Bank	Target Corporation, 4.000% 6/15/13	BUY		(1.00	)		12/20/14		600			(4	)
Goldman Sachs	DR Horton, Inc., 5.375% 6/15/12	BUY		(1.00	)		09/20/16		405			20
Goldman Sachs	DR Horton, Inc., 5.375% 6/15/12	BUY		(1.00	)		09/20/16		370			18
Goldman Sachs	Pulte Homes, Inc., 5.250% 1/15/14	BUY		(1.00	)		09/20/16		1,150			96
Merrill Lynch	Centex Corporation, 5.250% 06/15/15	BUY		(3.56	)		12/20/12		1,350			(70	)
Merrill Lynch	Centex Corporation, 5.250% 06/15/15	BUY		(3.65	)		12/20/12		925			(50	)
Morgan Stanley	Berkshire Hathaway Inc., 4.625% 10/15/13	SELL		4.00			03/20/11		(2,800	)		45
Morgan Stanley	CMBX 1 2006-1 AAA	SELL		0.10			10/12/52		(522	)		19
Morgan Stanley	CMBX 1 2006-1 AAA	BUY		0.10			10/12/52		880			(22	)
Morgan Stanley	CMBX 2 2006-1 AAA	BUY		(0.07	)		03/15/49		512			(16	)
Morgan Stanley	CMBX 4 2007-2 AAA	SELL		0.35			02/17/51		(500	)		26
Morgan Stanley	Darden Restaurants Inc., 7.125% 02/01/16	BUY		(2.25	)		03/20/13		400			(15	)
											$	(7,131	)

SEI Institutional Managed Trust / Annual Report / September 30, 2010 85

SCHEDULE OF INVESTMENTS

Core Fixed Income Fund (Concluded)

September 30, 2010

Interest Rate Swaps
Counterparty	Fund Pays	Fund Receives	Termination Date	Notional Amount (Thousands)		Net Unrealized Depreciation ($Thousands)
Morgan Stanley	0.00%	3MLIBOR (PAYMENT AT MATURITY)	11/15/27		16,210	$	(1,954	)
Morgan Stanley	0.00%	3MLIBOR (PAYMENT AT MATURITY)	02/15/25		10,530		(1,295	)
						$	(3,249	)

Percentages are based on a Net Assets of $2,352,759 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

‡ Real Estate Investment Trust

(A) Variable Rate Security—The rate reported on the Schedule of Investments is the rate in effect as of September 30, 2010. The date reported on the Schedule of Investments is the next reset date.

(B) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase.

(C) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other “accredited investors.” These securities have been determined to be liquid under guidelines established by the board of Trustees.

(D) This security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total market value of securities on loan at September 30, 2010 was $42,281 ($ Thousands).

(E) Security in default on interest payments.

(F) This security was purchased with cash collateral held from securities on loan (see Note 9). The total market value of such securities as of September 30, 2010 was $40,213 ($ Thousands).

(G) Unsettled bank loan. Interest not available.

ABS — Asset-Based Security

ARM — Adjustable Rate Mortgage

Cl — Class

CMO — Collateralized Mortgage Obligation

EUR — Euro

FHLMC — Federal Home Loan Mortgage Corporation

FICO — Financing Corporation

FNMA — Federal National Mortgage Association

GNMA — Government National Mortgage Association

GO — General Obligation

IO — Interest Only—face amount represents notional amount

LLC — Limited Liability Company

LOC — Line of Credit

L.P. — Limited Partnership

MTN — Medium Term Note

PLC — Public Limited Company

PO — Principal Only

RB — Revenue Bond

Ser — Series

STRIPS — Separately Traded Registered Interest and Principal Securities

TBA — To Be Announced

TIPS — Treasury Inflation Protected Security

USD — United States Dollar

Amounts designated as “—” are $O or have been rounded to $O

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Mortgage-Backed Securities	$	—	$	1,086,784	$	5,118	$	1,091,902
Corporate Obligations		—		747,744		3,285		751,029
Asset-Backed Securities		—		162,011		—		162,011
U.S. Government Agency Obligations		—		45,599		—		45,599
Loan Participations		—		19,382		818		20,200
Municipal Bonds		—		17,041		—		17,041
Preferred Stock		1,402		502		—		1,904
Warrant		—		7		—		7
Common Stock		49		—		—		49
U.S. Treasury Obligations		—		345,154		—		345,154
Cash Equivalent		127,108		—		—		127,108
Affiliated Partnership		—		40,213		—		40,213
Total Investments in Securities	$	128,559	$	2,464,437	$	9,221	$	2,602,217

Other Financial Instruments	Level 1			Level 2			Level 3		Total
Futures Contracts*	$	(163	)	$	—		$	—	$	(163	)
Forwards*		—			(828	)		—		(828	)
Written Options		(484	)		—			—		(484	)
Credit Default Swaps*		—			(7,131	)		—		(7,131	)
Interest Rate Swaps*		—			(3,249	)		—		(3,249	)
Total Other Financial Instruments	$	(647	)	$	(11,208	)	$	—	$	(11,855	)

* Futures contracts, forwards and swaps are valued at the unrealized depreciation on the instruments.

The following is a reconciliation of the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Mortgage-Backed Securities			Corporate Obligations			Loan Participations			Swaptions
Beginning balance as of October 1, 2009	$	4,779		$	3,150		$	—		$	(2,359	)
Accrued discounts/premiums		76			—			1			—
Realized gain/(loss)		220			—			1,065			448
Change in unrealized appreciation/(depreciation)		711			256			(233	)		(112	)
Net purchases/ sales		(668	)		(121	)		(15	)		2,023
Net transfer in and/or out of Level 3		—			—			—			—
Ending balance as of September 30, 2010	$	5,118		$	3,285		$	818		$	—
Changes in unrealized gains (losses) included in earnings related to securities held at reporting date	$	(442	)	$	403		$	—		$	—

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

86 SEI Institutional Managed Trust / Annual Report / September 30, 2010

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
MORTGAGE-BACKED SECURITIES — 51.5%
Agency Mortgage-Backed Obligations — 40.4%
FHLB
0.750%, 10/05/11	$	4,040	$	4,040
FHLB CMO, Ser 2007-1067, Cl 1
5.300%, 06/15/12		261		280
FHLMC
11.000%, 02/17/21		557		618
10.000%, 03/17/26 to 10/01/30		1,620		1,915
7.500%, 01/01/32 to 09/01/38		2,075		2,341
6.500%, 10/01/31 to 09/01/38		3,873		4,261
6.000%, 08/01/15 to 09/01/38		9,650		10,486
5.500%, 08/23/17 to 04/01/38		14,573		15,665
5.000%, 09/01/23 to 02/01/39		9,572		10,133
4.500%, 04/01/35 to 04/01/39		3,880		4,081
4.000%, 10/01/33		668		687
1.250%, 01/26/12		2,940		2,947
0.469%, 02/03/12 (A)		6,485		6,488
0.180%, 10/25/10 (B)		3,050		3,050
0.177%, 10/13/10 (B)		9,060		9,060
0.050%, 03/16/11		2,230		2,229
FHLMC ARM (A)
6.455%, 02/01/37		419		450
6.365%, 10/01/37		764		820
6.364%, 12/01/36		614		656
6.306%, 10/01/36		567		603
6.247%, 10/01/36		1,623		1,717
6.183%, 12/01/36		810		859
6.143%, 06/01/37		71		76
6.040%, 10/01/37		213		227
6.012%, 04/01/37		175		188
5.992%, 04/01/37		285		304
5.967%, 06/01/38		412		443
5.965%, 11/01/36		103		110
5.956%, 03/01/37		643		684

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
5.953%, 01/01/37	$	989	$	1,064
5.902%, 03/01/37		38		41
5.874%, 11/01/36		901		959
5.794%, 05/01/37		470		502
5.768%, 07/01/38		359		385
5.765%, 05/01/37		856		910
5.739%, 05/01/37		604		642
5.717%, 03/01/36		152		164
5.693%, 04/01/37		176		188
5.688%, 03/01/36		141		151
5.686%, 06/01/37		528		567
5.642%, 10/01/38		117		125
5.322%, 05/01/38		443		471
5.243%, 03/01/36		1,058		1,116
FHLMC CMO, Ser 1591, Cl PV
6.250%, 10/15/23		1,572		1,675
FHLMC CMO, Ser 1998-2043, Cl CJ
6.500%, 04/15/28		749		838
FHLMC CMO, Ser 2002-2399, Cl XG
6.500%, 01/15/32		748		821
FHLMC CMO, Ser 2002-2479, Cl PG
6.000%, 08/15/32		383		418
FHLMC CMO, Ser 2002-2542, Cl ES
5.000%, 12/15/17		39		42
FHLMC CMO, Ser 2003-2558, Cl BD
5.000%, 01/15/18		173		192
FHLMC CMO, Ser 2003-2590, Cl BY
5.000%, 03/15/18		71		79
FHLMC CMO, Ser 2003-2676, Cl CY
4.000%, 09/15/18		202		217
FHLMC CMO, Ser 2003-2694, Cl QG
4.500%, 01/15/29		46		48
FHLMC CMO, Ser 2004-2727, Cl PW
3.570%, 06/15/29		27		28
FHLMC CMO, Ser 2004-2765, Cl CT
4.000%, 03/15/19		117		127
FHLMC CMO, Ser 2004-2843, Cl BC
5.000%, 08/15/19		261		291
FHLMC CMO, Ser 2004-2875, Cl HB
4.000%, 10/15/19		45		49
FHLMC CMO, Ser 2005-2945, Cl SA
11.665%, 03/15/20 (A)		140		164
FHLMC CMO, Ser 2005-2980, Cl QA
6.000%, 05/15/35		245		268
FHLMC CMO, Ser 2005-3028, Cl PG
5.500%, 09/15/35		167		181
FHLMC CMO, Ser 2005-3035, Cl PA
5.500%, 09/15/35		71		79
FHLMC CMO, Ser 2007-3347, Cl PO, PO
0.000%, 07/15/37		206		206
FHLMC CMO, Ser 2007-3385, Cl SN, IO
5.743%, 11/15/37 (A)		537		57

SEI Institutional Managed Trust / Annual Report / September 30, 2010 87

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FHLMC CMO, Ser 2008-3451, Cl SA, IO
5.793%, 05/15/38 (A)	$	615	$	77
FHLMC CMO, Ser 2008-3455, Cl AC
5.000%, 06/15/38		620		669
FHLMC CMO, Ser 2008-3461, Cl LZ
6.000%, 06/15/38		229		253
FHLMC CMO, Ser 2009-3598, Cl MA
4.500%, 11/15/38		358		379
FHLMC CMO, Ser 2009-3607, Cl TO, PO
0.000%, 10/15/39		272		253
FHLMC CMO, Ser 2010-3704, Cl CA
4.000%, 12/15/36		2,470		2,637
FHLMC CMO, Ser 2010-3704, Cl CT
7.000%, 12/15/36		985		1,091
FHLMC CMO, Ser 2010-K005, Cl A2
4.317%, 11/25/19		528		574
FHLMC CMO, Ser 2010-K007, Cl A1
3.342%, 12/25/19		413		435
FHLMC CMO, Ser 2033, Cl HC
6.500%, 02/15/28		263		274
FHLMC CMO, Ser 2075, Cl D
6.500%, 08/15/28		541		576
FHLMC CMO, Ser 239, Cl S30, IO
7.443%, 08/15/36 (A)		1,242		183
FHLMC CMO, Ser 2434, Cl ZA
6.500%, 04/15/32		593		670
FHLMC CMO, Ser 2458, Cl ZM
6.500%, 06/15/32		468		517
FHLMC CMO, Ser 2587, Cl CO, PO
0.000%, 03/15/32		348		342
FHLMC CMO, Ser 2591, Cl QO
4.500%, 03/15/18		300		328
FHLMC CMO, Ser 2631, Cl SA
14.209%, 06/15/33 (A)		317		371
FHLMC CMO, Ser 2691, Cl SE
9.065%, 12/15/28 (A)		173		190
FHLMC CMO, Ser 2695, Cl SX
15.665%, 10/15/33 (A)		85		99
FHLMC CMO, Ser 2695, Cl OB, PO
0.000%, 10/15/33		115		106
FHLMC CMO, Ser 2698, Cl SV
8.475%, 11/15/33 (A)		159		164
FHLMC CMO, Ser 2725, Cl SC
8.544%, 11/15/33 (A)		81		85
FHLMC CMO, Ser 2754, Cl JG
4.500%, 03/15/33		150		153
FHLMC CMO, Ser 2812, Cl NO, PO
0.000%, 10/15/33		131		111
FHLMC CMO, Ser 2833, Cl KO, PO
0.000%, 08/15/34		43		43
FHLMC CMO, Ser 2864, Cl NB
5.500%, 07/15/33		1,007		1,122

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FHLMC CMO, Ser 2865, Cl GO, PO
0.000%, 10/15/33	$	72	$	70
FHLMC CMO, Ser 2897, Cl EO, PO
0.000%, 10/15/31		144		140
FHLMC CMO, Ser 2903, Cl UZ
5.500%, 07/15/31		123		127
FHLMC CMO, Ser 2934, Cl CI
5.000%, 01/15/34		2,510		2,712
FHLMC CMO, Ser 2950, Cl JO, PO
0.000%, 03/15/20		207		196
FHLMC CMO, Ser 2990, Cl LK
0.720%, 10/15/34 (A)		494		494
FHLMC CMO, Ser 3001, Cl HP
20.601%, 05/15/35 (A)		129		178
FHLMC CMO, Ser 3006, Cl QS
19.171%, 07/15/35 (A)		354		473
FHLMC CMO, Ser 3012, Cl GK
23.176%, 06/15/35 (A)		134		217
FHLMC CMO, Ser 3137, Cl XP
6.000%, 04/15/36		286		316
FHLMC CMO, Ser 3217, Cl CX, IO
6.240%, 09/15/36 (A)		1,051		155
FHLMC CMO, Ser 3225, Cl EO, PO
0.000%, 10/15/36		436		383
FHLMC CMO, Ser 3262, Cl SG, IO
6.143%, 01/15/37 (A)		1,014		139
FHLMC CMO, Ser 3342, Cl VG
6.000%, 11/15/23		300		334
FHLMC CMO, Ser 3346, Cl FA
0.580%, 02/15/19 (A)		3,733		3,728
FHLMC CMO, Ser 3373, Cl TO, PO
0.000%, 04/15/37		149		136
FHLMC CMO, Ser 3383, Cl SA, IO
6.100%, 11/15/37 (A)		1,095		147
FHLMC CMO, Ser 3422, Cl SE
16.576%, 02/15/38 (A)		105		131
FHLMC CMO, Ser 3515, Cl PI, IO
5.500%, 07/15/37		415		54
FHLMC CMO, Ser 3607, Cl BO, PO
0.000%, 04/15/36		100		88
FHLMC CMO, Ser 3611, Cl PO, PO
0.000%, 07/15/34		242		223
FHLMC CMO, Ser 3626, Cl MA
5.000%, 02/15/30		3,211		3,408
FHLMC CMO, Ser 3631, Cl PA
4.000%, 02/15/40		758		808
FHLMC CMO, Ser 3632, Cl BS
16.334%, 02/15/40 (A)		100		144
FHLMC CMO, Ser 3652, Cl AP
4.500%, 03/15/40		1,536		1,643
FHLMC CMO, Ser 3688, Cl NI, IO
5.000%, 04/15/32		982		121
FHLMC CMO, Ser 6960, Cl SJ
8.625%, 10/15/33 (A)		326		340

88 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FHLMC CMO, Ser T-42, Cl A5
7.500%, 02/25/42	$	946	$	1,108
FHLMC CMO, Ser T-51, Cl 1A
6.500%, 09/25/43 (A)		230		260
FHLMC CMO, Ser T-54, Cl 2A
6.500%, 02/25/43		158		178
FHLMC CMO, Ser T-54, Cl 3A
7.000%, 02/25/43		506		580
FHLMC CMO, Ser T-57, Cl 1A2
7.000%, 07/25/43		566		656
FHLMC CMO, Ser T-58, Cl 4A
7.500%, 09/25/43		749		878
FHLMC CMO, Ser T-60, Cl 1A2
7.000%, 03/25/44		244		283
FHLMC CMO, Ser T-76, Cl 2A
4.822%, 10/25/37 (A)		371		384
FHLMC Multifamily Structured Pass Through Certificates CMO, Ser 2009-K003, Cl AAB
4.768%, 05/25/18		342		376
FHLMC Multifamily Structured Pass Through Certificates CMO, Ser 2010-K008, Cl A1
2.746%, 12/25/19		737		753
FHLMC Reference REMIC CMO, Ser 2006-R007, Cl ZA
6.000%, 05/15/36		324		367
FHLMC-GNMA CMO, Ser 1993-21, Cl L
6.250%, 10/25/23		512		541
FHLMC TBA
5.500%, 10/15/37		2,500		2,652
4.500%, 11/14/35 to 10/11/37		7,500		7,791
FNMA
7.500%, 10/01/37 to 04/01/39		1,560		1,745
7.000%, 04/01/32 to 01/01/39		1,745		1,966
6.500%, 05/01/27 to 10/01/38		5,026		5,524
6.000%, 03/01/19 to 08/01/37		34,561		37,826
5.500%, 01/01/19 to 10/25/40		39,824		42,925
5.000%, 01/01/20 to 02/01/39		7,118		7,536
4.500%, 04/01/25 to 06/01/35		3,991		4,205
3.500%, 07/01/25 to 11/20/40		631		657
3.000%, 10/20/40		264		273
FNMA ARM (A)
6.526%, 09/01/36		375		399
6.308%, 09/01/37		43		46
6.274%, 09/01/37		109		117
6.257%, 10/01/36		73		79
6.237%, 09/01/36		502		535
6.227%, 11/01/37		394		416
6.200%, 08/01/36		161		173
6.195%, 06/01/36		761		806
6.150%, 02/01/37		890		943
6.138%, 07/01/37		629		671
6.124%, 12/01/36		69		75

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
6.042%, 09/01/37	$	54	$	58
6.028%, 01/01/37		110		118
6.021%, 10/01/37		71		77
6.000%, 11/01/37		105		113
5.993%, 05/01/36		678		716
5.986%, 09/01/37		419		450
5.977%, 04/01/37		103		111
5.962%, 07/01/37 to 10/01/37		317		341
5.957%, 01/01/37		148		159
5.922%, 04/01/37		174		185
5.921%, 07/01/37		298		317
5.910%, 03/01/37		85		92
5.904%, 04/01/36		533		570
5.900%, 07/01/37		231		249
5.896%, 09/01/37		112		120
5.882%, 11/01/36		320		341
5.878%, 02/01/37		84		90
5.845%, 12/01/36		317		337
5.841%, 09/01/37		203		218
5.831%, 10/01/37		72		77
5.686%, 01/01/23		283		303
5.679%, 11/01/36		456		484
5.659%, 10/01/37		119		128
5.656%, 09/01/36		223		236
5.612%, 12/01/36		639		678
5.610%, 02/01/39		313		336
5.601%, 11/01/37		712		757
5.500%, 07/01/37		698		743
5.213%, 03/01/36		396		416
FNMA CMO STRIPS, Ser 2005-360, Cl 2, IO
5.000%, 08/01/35		1,626		217
FNMA CMO, Ser 1999-11, Cl Z
5.500%, 03/25/29		575		617
FNMA CMO, Ser 2000-18, Cl EC, PO
0.000%, 10/25/23		161		144
FNMA CMO, Ser 2001-79, Cl BA
7.000%, 03/25/45		266		298
FNMA CMO, Ser 2001-81, Cl HE
6.500%, 01/25/32		2,517		2,838
FNMA CMO, Ser 2002-81, Cl JO, PO
0.000%, 04/25/32		202		196
FNMA CMO, Ser 2002-94, Cl HQ
4.500%, 01/25/18		222		239
FNMA CMO, Ser 2003-108, Cl BE
4.000%, 11/25/18		158		171
FNMA CMO, Ser 2003-125, Cl AY
4.000%, 12/25/18		50		54
FNMA CMO, Ser 2003-131, Cl SK
15.506%, 01/25/34 (A)		290		356
FNMA CMO, Ser 2003-3, Cl HJ
5.000%, 02/25/18		3		3
FNMA CMO, Ser 2003-35, Cl EA, PO
0.000%, 05/25/33		228		219

SEI Institutional Managed Trust / Annual Report / September 30, 2010 89

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FNMA CMO, Ser 2003-91, Cl XT
4.500%, 12/25/17	$	630	$	638
FNMA CMO, Ser 2004-3, Cl HT
4.000%, 02/25/19		1		1
FNMA CMO, Ser 2004-46, Cl EP, PO
0.000%, 03/25/34		245		218
FNMA CMO, Ser 2004-52, Cl PX, PO
0.000%, 09/25/32		173		166
FNMA CMO, Ser 2004-60, Cl PA
5.500%, 04/25/34		139		150
FNMA CMO, Ser 2004-61, Cl CO, PO
0.000%, 10/25/31		200		198
FNMA CMO, Ser 2004-81, Cl KE
4.500%, 11/25/19		49		55
FNMA CMO, Ser 2004-89, Cl SM
16.932%, 09/25/24 (A)		568		854
FNMA CMO, Ser 2005-106, Cl US
23.294%, 11/25/35 (A)		1,013		1,496
FNMA CMO, Ser 2005-38, Cl DP
5.000%, 06/25/19		1,000		1,064
FNMA CMO, Ser 2005-58, Cl MA
5.500%, 07/25/35		129		145
FNMA CMO, Ser 2005-68, Cl BA
5.250%, 11/25/33		331		341
FNMA CMO, Ser 2005-72, Cl SB
16.007%, 08/25/35 (A)		336		417
FNMA CMO, Ser 2005-88, Cl QO, PO
0.000%, 11/25/33		72		69
FNMA CMO, Ser 2005-90, Cl ES
16.007%, 10/25/35 (A)		247		309
FNMA CMO, Ser 2005-96, Cl BP
5.900%, 02/25/15		794		798
FNMA CMO, Ser 2006-117, Cl GS, IO
6.394%, 12/25/36 (A)		429		39
FNMA CMO, Ser 2006-118, Cl A2
0.407%, 12/25/36 (A)		311		306
FNMA CMO, Ser 2006-15, Cl OP, PO
0.000%, 03/25/36		162		141
FNMA CMO, Ser 2006-27, Cl OH, PO
0.000%, 04/25/36		198		178
FNMA CMO, Ser 2006-43, Cl VB
6.500%, 10/25/17		350		376
FNMA CMO, Ser 2006-59, Cl CO, PO
0.000%, 08/25/35		57		56
FNMA CMO, Ser 2006-59, Cl QO, PO
0.000%, 01/25/33		171		162
FNMA CMO, Ser 2006-63, Cl ZH
6.500%, 07/25/36		527		616
FNMA CMO, Ser 2006-75, Cl VD
6.500%, 05/25/17		690		724
FNMA CMO, Ser 2006-78, Cl BZ
6.500%, 08/25/36		131		145
FNMA CMO, Ser 2007-100, Cl SM, IO
6.103%, 10/25/37 (A)		808		101

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FNMA CMO, Ser 2007-101, Cl A2
0.506%, 06/27/36 (A)	$	282	$	281
FNMA CMO, Ser 2007-112, Cl SA, IO
6.103%, 12/25/37 (A)		630		86
FNMA CMO, Ser 2007-113, Cl DB
4.500%, 12/25/22		341		382
FNMA CMO, Ser 2007-114, Cl A6
0.547%, 10/27/37 (A)		500		499
FNMA CMO, Ser 2007-116, Cl PB
5.500%, 08/25/35		1,000		1,118
FNMA CMO, Ser 2007-116, Cl HI, IO
6.209%, 01/25/38 (A)		485		32
FNMA CMO, Ser 2007-27, Cl MA
5.500%, 11/25/29		113		116
FNMA CMO, Ser 2007-29, Cl SG
21.509%, 04/25/37 (A)		97		135
FNMA CMO, Ser 2007-30, Cl MA
4.250%, 02/25/37		1,419		1,522
FNMA CMO, Ser 2007-39, Cl NA
4.250%, 01/25/37		4		4
FNMA CMO, Ser 2007-54, Cl FA
0.747%, 06/25/37 (A)		542		543
FNMA CMO, Ser 2007-65, Cl KI, IO
6.273%, 07/25/37 (A)		854		75
FNMA CMO, Ser 2007-72, Cl EK, IO
6.144%, 07/25/37 (A)		727		79
FNMA CMO, Ser 2007-75, Cl EO, PO
0.000%, 01/25/36		354		344
FNMA CMO, Ser 2007-77, Cl MH
6.000%, 12/25/36		542		582
FNMA CMO, Ser 2007-77, Cl PD
6.000%, 10/25/36		1,000		1,126
FNMA CMO, Ser 2007-83, Cl PC
6.000%, 10/25/33		1,000		1,070
FNMA CMO, Ser 2008-35, Cl IM, IO
0.642%, 10/25/16 (A)		1,203		13
FNMA CMO, Ser 2008-4, Cl SD, IO
5.653%, 02/25/38 (A)		1,215		143
FNMA CMO, Ser 2008-95, Cl BA
5.000%, 01/25/24		250		288
FNMA CMO, Ser 2009-103, Cl MB
4.000%, 12/25/39		566		600
FNMA CMO, Ser 2009-31, Cl A2
4.287%, 07/25/19		651		706
FNMA CMO, Ser 2009-52, Cl PI, IO
5.000%, 07/25/39		613		100
FNMA CMO, Ser 2009-71, Cl JT
6.000%, 06/25/36		261		284
FNMA CMO, Ser 2009-78, Cl J
5.000%, 09/25/19		841		901
FNMA CMO, Ser 2009-84, Cl WS, IO
5.553%, 10/25/39 (A)		568		46
FNMA CMO, Ser 2009-86, Cl BO, PO
0.000%, 03/25/37		2,979		2,600

90 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FNMA CMO, Ser 2009-93, Cl PD
4.500%, 09/25/39	$	341	$	366
FNMA CMO, Ser 2009-99, Cl SC, IO
5.833%, 12/25/39 (A)		647		58
FNMA CMO, Ser 2009-99, Cl WA
6.286%, 12/25/39 (A)		457		498
FNMA CMO, Ser 2009-M2, Cl A3
4.001%, 01/25/19		680		719
FNMA CMO, Ser 2010-1, Cl WA
6.130%, 02/25/40 (A)		226		249
FNMA CMO, Ser 2010-15, Cl KA
4.000%, 03/25/39		517		547
FNMA CMO, Ser 2010-16, Cl WA
6.428%, 03/25/40		231		253
FNMA CMO, Ser 2010-23, Cl KS, IO
6.753%, 02/25/40 (A)		905		124
FNMA CMO, Ser 2010-35, Cl SB, IO
6.164%, 04/25/40 (A)		821		78
FNMA CMO, Ser 2010-39, Cl OT, PO
0.000%, 10/25/35		219		195
FNMA CMO, Ser 2010-64, Cl DM
5.000%, 06/25/40		478		517
FNMA CMO, Ser 2010-68, Cl SA, IO
4.650%, 07/25/40 (A)		1,486		162
FNMA CMO, Ser 2010-M1, Cl A2
4.450%, 09/25/19		228		249
FNMA CMO, Ser 2010-M3, Cl A3
4.332%, 03/25/20 (A)		1,049		1,133
FNMA Grantor Trust CMO, Ser 2001-T10, Cl A1
7.000%, 12/25/41		800		929
FNMA Grantor Trust CMO, Ser 2001-T10, Cl A2
7.500%, 12/25/41		497		566
FNMA Grantor Trust CMO, Ser 2002-T1, Cl A1
6.500%, 11/25/31		610		688
FNMA Grantor Trust CMO, Ser 2002-T19, Cl A2
7.000%, 07/25/42		507		589
FNMA Grantor Trust CMO, Ser 2004-T3, Cl 1A3
7.000%, 02/25/44		482		560
FNMA Whole Loan CMO, Ser 2002-W6, Cl 2SI, IO
7.757%, 06/25/42 (A)		601		97
FNMA Whole Loan CMO, Ser 2003-W1, Cl 2A
7.500%, 12/25/42 (A)		314		370
FNMA Whole Loan CMO, Ser 2003-W12, Cl 1A8
4.550%, 06/25/43		389		410
FNMA Whole Loan CMO, Ser 2003-W8, Cl 2A
7.000%, 10/25/42		424		492

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
FNMA Whole Loan CMO, Ser 2004-W1, Cl 2A2
7.000%, 12/25/33	$	652	$	757
FNMA Whole Loan CMO, Ser 2004-W2, Cl 2A2
7.000%, 02/25/44		830		964
FNMA Whole Loan CMO, Ser 2005-W3, Cl 2AF
0.563%, 03/25/45 (A)		391		390
FNMA Whole Loan CMO, Ser 2006-W1, Cl 1A3
7.500%, 12/25/45		412		493
FNMA Whole Loan CMO, Ser 2006-W2, Cl 1AF1
0.567%, 02/25/36 (A)		422		418
FNMA Whole Loan CMO, Ser 2007-W1, Cl 1AF1
0.607%, 11/25/46 (A)		648		646
FNMA TBA
5.000%, 10/01/38		500		526
4.500%, 11/15/34 to 10/01/39		2,650		2,701
3.500%, 10/25/25 to 11/25/25		13,215		13,625
GNMA
7.500%, 10/15/37		495		550
7.000%, 09/15/31		129		147
6.500%, 12/15/32 to 12/15/35		2,095		2,342
4.500%, 11/15/39		3,785		3,990
3.000%, 11/20/40 to 01/20/41		325		334
GNMA ARM (A)
4.000%, 07/20/40		528		558
3.500%, 02/20/34		676		704
3.000%, 08/20/40		497		514
GNMA CMO, Ser 1999-47, Cl Z
7.500%, 12/20/29		659		771
GNMA CMO, Ser 2001-61, Cl Z
6.500%, 12/20/31		882		965
GNMA CMO, Ser 2003-97, Cl SA, IO
6.200%, 11/16/33 (A)		727		128
GNMA CMO, Ser 2004-11, Cl SX
16.490%, 02/20/34 (A)		37		47
GNMA CMO, Ser 2004-28, Cl SV
8.652%, 04/20/34 (A)		464		497
GNMA CMO, Ser 2004-34, Cl JO, PO
0.000%, 02/20/34		141		134
GNMA CMO, Ser 2004-71, Cl ST
7.000%, 09/20/34 (A)		235		251
GNMA CMO, Ser 2004-85, Cl PO, PO
0.000%, 01/17/33		87		81
GNMA CMO, Ser 2004-87, Cl SB
7.270%, 03/17/33 (A)		378		394
GNMA CMO, Ser 2005-92, Cl PB
6.000%, 12/20/35		400		454
GNMA CMO, Ser 2006-34, Cl PO, PO
0.000%, 07/20/36		132		117

SEI Institutional Managed Trust / Annual Report / September 30, 2010 91

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
GNMA CMO, Ser 2006-37, Cl JG
5.000%, 07/20/36	$	194	$	212
GNMA CMO, Ser 2007-17, Cl AF
0.550%, 04/16/37 (A)		612		610
GNMA CMO, Ser 2007-26, Cl SW, IO
5.853%, 05/20/37 (A)		1,148		118
GNMA CMO, Ser 2007-27, Cl SD, IO
5.852%, 05/20/37 (A)		633		63
GNMA CMO, Ser 2007-72, Cl US, IO
6.203%, 11/20/37 (A)		431		47
GNMA CMO, Ser 2007-78, Cl SA, IO
6.273%, 12/16/37 (A)		3,688		514
GNMA CMO, Ser 2007-82, Cl SA, IO
6.182%, 12/20/37 (A)		578		66
GNMA CMO, Ser 2007-9, Cl CI, IO
5.852%, 03/20/37 (A)		887		87
GNMA CMO, Ser 2008-10, Cl S, IO
5.483%, 02/20/38 (A)		894		72
GNMA CMO, Ser 2008-29, Cl PO, PO
0.000%, 02/17/33		196		179
GNMA CMO, Ser 2008-33, Cl XS, IO
7.350%, 04/16/38 (A)		429		46
GNMA CMO, Ser 2008-55, Cl SA, IO
5.852%, 06/20/38 (A)		1,025		98
GNMA CMO, Ser 2009-106, Cl AS, IO
6.050%, 11/16/39 (A)		921		75
GNMA CMO, Ser 2009-14, Cl KI, IO
6.500%, 03/20/39		582		76
GNMA CMO, Ser 2009-24, Cl DS, IO
5.952%, 03/20/39 (A)		1,599		147
GNMA CMO, Ser 2009-25, Cl SE, IO
7.252%, 09/20/38 (A)		729		89
GNMA CMO, Ser 2009-43, Cl SA, IO
5.603%, 06/20/39 (A)		864		82
GNMA CMO, Ser 2009-44, Cl MV
6.000%, 04/20/20		1,829		2,081
GNMA CMO, Ser 2009-6, Cl SH, IO
5.693%, 02/20/39 (A)		717		70
GNMA CMO, Ser 2009-65, Cl TS, IO
6.053%, 12/20/38 (A)		1,422		132
GNMA CMO, Ser 2009-65, Cl IQ, IO
6.000%, 12/20/38		356		40
GNMA CMO, Ser 2009-67, Cl SA, IO
5.793%, 08/16/39 (A)		606		58
GNMA CMO, Ser 2009-75, Cl MN
5.500%, 09/20/39		500		562
GNMA CMO, Ser 2009-79, Cl OK, PO
0.000%, 11/16/37		674		622
GNMA CMO, Ser 2009-83, Cl TS, IO
5.843%, 08/20/39 (A)		1,063		110
GNMA CMO, Ser 2010-14, Cl CO, PO
0.000%, 08/20/35		125		103
GNMA CMO, Ser 2010-4, Cl NS, IO
6.040%, 01/16/40 (A)		8,066		1,163

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
GNMA TBA
4.500%, 11/15/39 to 12/15/39	$	4,000	$	4,198
4.000%, 10/15/40		11,330		11,713
				355,204
Non-Agency Mortgage-Backed Obligations — 11.1%
American General Mortgage Loan Trust, Ser 2009-1, Cl A5
5.750%, 09/25/48 (A) (D)		200		209
American General Mortgage Loan Trust, Ser 2009-1, Cl A4
5.750%, 09/25/48 (A) (D)		325		338
American General Mortgage Loan Trust, Ser 2009-1, Cl A7
5.750%, 09/25/48 (A) (D)		300		300
American General Mortgage Loan Trust, Ser 2010-1A, Cl A1
5.650%, 03/25/58 (A) (D)		270		277
American Home Mortgage Investment Trust, Ser 2004-4, Cl 4A
2.442%, 02/25/45 (A)		1,331		1,153
ASG Resecuritization Trust, Ser 2009-2, Cl A55
5.755%, 05/24/36 (A) (D)		339		341
ASG Resecuritization Trust, Ser 2009-3, Cl A65
5.594%, 03/26/37 (A) (D)		1,155		1,164
ASG Resecuritization Trust, Ser 2010-3, Cl 2A22
0.523%, 10/28/36 (A) (D)		233		227
Asset Securitization, Ser 1996-D3, Cl A2
7.778%, 10/13/26 (A)		268		276
Banc of America Alternative Loan Trust, Ser 2003-11, Cl 2A1
6.000%, 01/25/34		465		487
Banc of America Alternative Loan Trust, Ser 2003-11, Cl 1A1
6.000%, 01/25/34		201		210
Banc of America Alternative Loan Trust, Ser 2003-7, Cl 2A4
5.000%, 09/25/18		235		242
Banc of America Alternative Loan Trust, Ser 2003-9, Cl 1CB2
5.500%, 11/25/33		276		282
Banc of America Alternative Loan Trust, Ser 2004-1, Cl 5A1
5.500%, 02/25/19		127		127
Banc of America Alternative Loan Trust, Ser 2004-8, Cl 3A1
5.500%, 09/25/19		172		178
Banc of America Commercial Mortgage Securities, Ser 2002-PB2, Cl B
6.309%, 06/11/35		145		152

92 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Banc of America Commercial Mortgage Securities, Ser 2005-3, Cl A4
4.668%, 07/10/43	$	100	$	105
Banc of America Commercial Mortgage Securities, Ser 2005-6, Cl A4
5.179%, 09/10/47 (A)		181		199
Banc of America Commercial Mortgage, Ser 2002-2, Cl B
5.271%, 07/11/43		111		115
Banc of America Commercial Mortgage, Ser 2002-2, Cl E
7.634%, 09/15/32 (A)		128		128
Banc of America Commercial Mortgage, Ser 2002-PB2, Cl A4
6.186%, 06/11/35		1,084		1,137
Banc of America Commercial Mortgage, Ser 2004-6, Cl A3
4.512%, 12/10/42		149		154
Banc of America Commercial Mortgage, Ser 2005-3, Cl AM
4.727%, 07/10/43		300		276
Banc of America Commercial Mortgage, Ser 2005-4, Cl A5A
4.933%, 07/10/45		364		386
Banc of America Commercial Mortgage, Ser 2005-5, Cl A4
5.115%, 10/10/45 (A)		270		296
Banc of America Commercial Mortgage, Ser 2006-3, Cl A4
5.889%, 07/10/44 (A)		215		229
Banc of America Commercial Mortgage, Ser 2006-4, Cl A4
5.634%, 07/10/46		225		244
Banc of America Commercial Mortgage, Ser 2006-5, Cl A4
5.414%, 09/10/47		622		663
Banc of America Funding, Ser 2004-3, Cl 1A7
5.500%, 10/25/34		158		162
Banc of America Funding, Ser 2004-C, Cl 1A1
5.052%, 12/20/34 (A)		164		169
Banc of America Mortgage Securities, Ser 2003-3, Cl 2A1
0.897%, 05/25/18 (A)		205		198
Banc of America Mortgage Securities, Ser 2003-6, Cl 2A1
0.797%, 08/25/18 (A)		89		87
Banc of America Mortgage Securities, Ser 2004-3, Cl 3A1
5.000%, 04/25/19		144		148
Banc of America Mortgage Securities, Ser 2004-3, Cl 1A23
4.500%, 04/25/34		127		127

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Banc of America Mortgage Securities, Ser 2004-5, Cl 4A1
4.750%, 06/25/19	$	221	$	226
BCAP Trust, Ser 2009-RR10, Cl 17A1
5.750%, 06/26/37 (D)		389		393
BCAP Trust, Ser 2009-RR13, Cl 11A1
5.250%, 05/26/37 (A) (D)		172		171
BCAP Trust, Ser 2009-RR5, Cl 8A1
5.500%, 11/26/34 (D)		849		841
BCAP Trust, Ser 2010-RR5, Cl 2A5
5.183%, 04/26/37 (A) (D)		400		397
BCAP Trust, Ser 2010-RR6, Cl 5A1
5.500%, 11/26/37 (A) (D)		199		200
BCAP Trust, Ser 2010-RR7, Cl 16A1
1.086%, 02/26/47 (A) (D)		96		89
BCAP Trust, Ser 2010-RR7, Cl 15A1
1.056%, 01/26/36 (A) (D)		446		411
BCAP Trust, Ser 2010-RR7, Cl 1A5
5.025%, 04/26/35 (A) (D)		250		251
BCAP Trust, Ser 2010-RR7, Cl 2A1
5.105%, 07/26/45 (A) (D)		489		494
Bear Stearns Adjustable Rate Mortgage Trust, Ser 2004-2, Cl 14A
5.130%, 05/25/34 (A)		179		184
Bear Stearns Adjustable Rate Mortgage Trust, Ser 2005-5, Cl A1
2.530%, 08/25/35 (A)		244		234
Bear Stearns Commercial Mortgage Securities, Ser 2001-TOP2, Cl A2
6.480%, 02/15/35		66		67
Bear Stearns Commercial Mortgage Securities, Ser 2002-PBW1, Cl A2
4.720%, 11/11/35 (A)		132		139
Bear Stearns Commercial Mortgage Securities, Ser 2002-TOP8, Cl A2
4.830%, 08/15/38		65		69
Bear Stearns Commercial Mortgage Securities, Ser 2003-T12, Cl A3
4.240%, 08/13/39 (A)		55		56
Bear Stearns Commercial Mortgage Securities, Ser 2004-PWR4, Cl A3
5.468%, 06/11/41 (A)		120		132
Bear Stearns Commercial Mortgage Securities, Ser 2005-PWR7, Cl A2
4.945%, 02/11/41		159		162
Bear Stearns Commercial Mortgage Securities, Ser 2005-PWR7, Cl A3
5.116%, 02/11/41 (A)		371		400
Bear Stearns Commercial Mortgage Securities, Ser 2005-T20, Cl A4A
5.149%, 10/12/42 (A)		450		498
Bear Stearns Commercial Mortgage Securities, Ser 2006-PW11, Cl A
5.624%, 03/11/39 (A)		100		110

SEI Institutional Managed Trust / Annual Report / September 30, 2010 93

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Bear Stearns Commercial Mortgage Securities, Ser 2007-PW16, Cl A1
5.593%, 06/11/40	$	100	$	103
Chase Mortgage Finance, Ser 2003-S15, Cl 2A10
0.797%, 01/25/34 (A)		182		181
Chase Mortgage Finance, Ser 2003-S9, Cl AP, PO
0.000%, 10/25/18		146		124
Chase Mortgage Finance, Ser 2007-A1, Cl 9A1
4.549%, 02/25/37 (A)		108		110
Chase Mortgage Finance, Ser 2007-A1, Cl 2A1
3.815%, 02/25/37 (A)		177		177
Chase Mortgage Finance, Ser 2007-A2, Cl 1A1
3.252%, 07/25/37 (A)		202		200
Citicorp Mortgage Securities, Ser 2003-6, Cl 1A2
4.500%, 05/25/33		74		76
Citigroup Commercial Mortgage Trust, Ser 2005-C3, Cl AM
4.830%, 05/15/43 (A)		120		121
Citigroup Mortgage Loan Trust, Ser 2010-7, Cl 10A1
2.866%, 02/25/35 (A) (D)		147		147
Commercial Mortgage Asset Trust, Ser 1999-C1, Cl A4
6.975%, 01/17/32 (A)		680		742
Commercial Mortgage Pass Through Certificates, Ser 2001-J2a, Cl B
6.304%, 07/16/34 (D)		393		437
Commercial Mortgage Pass Through Certificates, Ser 2001-J2A, Cl A2
6.096%, 07/16/34 (D)		71		74
Commercial Mortgage Pass Through Certificates, Ser 2004-LB2A, Cl A4
4.715%, 03/10/39		205		217
Countrywide Home Loan Mortgage Pass Through Trust, Ser 2003-34, Cl A6
5.250%, 09/25/33		350		361
Countrywide Home Loan Mortgage Pass Through Trust, Ser 2003-39, Cl A6
5.000%, 10/25/33		284		289
Countrywide Home Loan Mortgage Pass Through Trust, Ser 2003-J13, Cl 1A7
5.250%, 01/25/34		498		511
Countrywide Home Loan Mortgage Pass Through Trust, Ser 2003-J7, Cl 4A3
9.325%, 08/25/18 (A)		95		99
Countrywide Home Loan Mortgage Pass Through Trust, Ser 2004-8, Cl 2A1
4.500%, 06/25/19		266		271

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Credit Suisse First Boston Mortgage Securities, Ser 2003-27, Cl 5A3
5.250%, 11/25/33	$	356	$	366
Credit Suisse First Boston Mortgage Securities, Ser 2003-29, Cl 5A1
7.000%, 12/25/33		151		157
Credit Suisse First Boston Mortgage Securities, Ser 2003-C4, Cl B
5.253%, 08/15/36 (A)		236		249
Credit Suisse Mortgage Capital Certificates, Ser 2006-C2, Cl A3
5.846%, 03/15/39 (A)		215		228
Credit Suisse Mortgage Capital Certificates, Ser 2006-C5, Cl A3
5.311%, 12/15/39		1,500		1,560
Credit Suisse Mortgage Capital Certificates, Ser 2007-C1, Cl AAB
5.336%, 02/15/40		140		146
Credit Suisse Mortgage Capital Certificates, Ser 2007-C2, Cl A2
5.448%, 01/15/49 (A)		206		212
Credit Suisse Mortgage Capital Certificates, Ser 2007-C5, Cl A3
5.694%, 09/15/40 (A)		284		296
Credit Suisse Mortgage Capital Certificates, Ser 2009-12R, Cl 7A1
5.500%, 10/27/35 (D)		124		125
Credit Suisse Mortgage Capital Certificates, Ser 2010-11R, Cl A1
1.260%, 06/28/47 (A) (D)		442		443
Credit Suisse Mortgage Capital Certificates, Ser 2010-15R, Cl 7A1
5.340%, 10/26/37 (A) (D)		150		151
CS First Boston Mortgage Securities, Ser 2002-CKS4, Cl A1
4.485%, 11/15/36		6		6
CS First Boston Mortgage Securities, Ser 2002-CKS4, Cl A2
5.183%, 11/15/36		433		458
CS First Boston Mortgage Securities, Ser 2003-29, Cl 8A1
6.000%, 11/25/18		213		220
CS First Boston Mortgage Securities, Ser 2003-AR24, Cl 2A4
3.030%, 10/25/33 (A)		1,323		1,235
CS First Boston Mortgage Securities, Ser 2003-CPN1, Cl A2
4.597%, 03/15/35		213		225
CS First Boston Mortgage Securities, Ser 2005-C1, Cl A4
5.014%, 02/15/38 (A)		263		282
CS First Boston Mortgage Securities, Ser 2005-C1, Cl A3
4.813%, 02/15/38		758		785

94 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
CS First Boston Mortgage Securities, Ser 2005-C2, Cl A4
4.832%, 04/15/37	$	290	$	304
CW Capital Cobalt, Ser 2006-C1, Cl A4
5.223%, 08/15/48		215		220
Deutsche ALT-A Securities Alternate Loan Trust, Ser 2005-1, Cl 2A1
5.587%, 02/25/20 (A)		138		139
Developers Diversified Realty, Ser 2009-DDR1, Cl A
3.807%, 10/14/22 (D)		440		467
First Horizon Asset Securities, Ser 2003-8, Cl 2A1
4.500%, 09/25/18		276		286
First Union National Bank Commercial Mortgage, Ser 2001-C4, Cl B
6.417%, 12/12/33		132		137
GE Capital Assurance, Ser 2003-1, Cl A4
5.254%, 05/12/35 (A) (D)		1,081		1,157
GE Capital Commercial Mortgage, Ser 2001-3, Cl A1
5.560%, 06/10/38		31		31
GE Capital Commercial Mortgage, Ser 2002-1A, Cl A3
6.269%, 12/10/35		1,512		1,597
GE Capital Commercial Mortgage, Ser 2002-3A, Cl A2
4.996%, 12/10/37		2,000		2,124
GMAC Commercial Mortgage Securities, Ser 2001-C2, Cl B
6.790%, 04/15/34		53		55
GMAC Commercial Mortgage Securities, Ser 2003-C2, Cl D
5.675%, 05/10/40 (A)		94		96
GMAC Commercial Mortgage Securities, Ser 2003-C2, Cl B
5.675%, 05/10/40 (A)		241		257
GMAC Commercial Mortgage Securities, Ser 2003-C2, Cl A2
5.485%, 05/10/40 (A)		122		134
GMAC Commercial Mortgage Securities, Ser 2003-C3, Cl A4
5.023%, 04/10/40		179		194
GMAC Commercial Mortgage Securities, Ser 2004-C2, Cl A4
5.301%, 08/10/38 (A)		187		205
GMAC Mortgage Loan Trust, Ser 2003-AR1, Cl A4
4.067%, 10/19/33 (A)		294		292
GMAC Mortgage Loan Trust, Ser 2003-GH2, Cl A4
5.000%, 10/25/33		230		229

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
GMAC Mortgage Loan Trust, Ser 2003-J7, Cl A7
5.000%, 11/25/33	$	352	$	338
GMAC Mortgage Loan Trust, Ser 2004-J5, Cl A7
6.500%, 01/25/35		330		338
GMAC Mortgage Loan Trust, Ser 2004-J6, Cl 1A1
5.000%, 01/25/20		225		232
GMAC Mortgage Loan Trust, Ser 2010-1, Cl A
4.250%, 07/25/40 (D)		158		161
Greenwich Capital Commercial Funding, Ser 2002-C1, Cl A4
4.948%, 01/11/35		1,340		1,423
Greenwich Capital Commercial Funding, Ser 2004-GG1, Cl A7
5.317%, 06/10/36 (A)		1,460		1,600
Greenwich Capital Commercial Funding, Ser 2004-GG1, Cl A6
5.135%, 06/10/36 (A)		266		286
Greenwich Capital Commercial Funding, Ser 2005-GG3, Cl AAB
4.619%, 08/10/42		686		717
Greenwich Capital Commercial Funding, Ser 2005-GG5, Cl A5
5.224%, 04/10/37 (A)		441		476
Greenwich Capital Commercial Funding, Ser 2006-GG7, Cl A4
5.888%, 07/10/38 (A)		2,250		2,465
Greenwich Capital Commercial Funding, Ser 2007-GG9, Cl A4
5.444%, 03/10/39		1,900		2,003
GS Mortgage Securities II, Ser 2001-GL3A, Cl A2
6.449%, 08/05/18 (A) (D)		186		193
GS Mortgage Securities II, Ser 2004-C1, Cl A2
4.319%, 10/10/28		155		155
GS Mortgage Securities II, Ser 2006-GG8, Cl A4
5.560%, 11/10/39		367		391
GSR Mortgage Loan Trust, Ser 2003-13, Cl 1A1
4.461%, 10/25/33 (A)		867		888
GSR Mortgage Loan Trust, Ser 2004-8F, Cl 2A3
6.000%, 09/25/34		228		240
GSR Mortgage Loan Trust, Ser 2005-5F, Cl 8A3
0.847%, 06/25/35 (A)		243		219
GSR Mortgage Loan Trust, Ser 2005-5F, Cl 2A3
5.500%, 06/25/35		246		249

SEI Institutional Managed Trust / Annual Report / September 30, 2010 95

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
GSR Mortgage Loan Trust, Ser 2007-1F, Cl 2A4
5.500%, 01/25/37	$	50	$	46
Homestar Mortgage Acceptance, Ser 2004-5, Cl A1
0.793%, 10/25/34 (A)		1,935		1,738
Impac Funding, Ser 2010-1, Cl A1
5.314%, 01/25/51 (D)		749		785
Impac Secured Assets CMN Owner Trust, Ser 2003-2, Cl A1
5.500%, 08/25/33		179		186
JP Morgan Chase Commercial Mortgage Securities, Ser 2001-CIB2, Cl D
6.847%, 04/15/35 (A)		134		136
JP Morgan Chase Commercial Mortgage Securities, Ser 2002-C2, Cl B
5.211%, 12/12/34 (A)		46		48
JP Morgan Chase Commercial Mortgage Securities, Ser 2002-CIB4, Cl C
6.450%, 05/12/34 (A)		182		190
JP Morgan Chase Commercial Mortgage Securities, Ser 2004-C2, Cl A3
5.407%, 05/15/41 (A)		314		340
JP Morgan Chase Commercial Mortgage Securities, Ser 2005-LDP2, Cl A3A
4.678%, 07/15/42		201		209
JP Morgan Chase Commercial Mortgage Securities, Ser 2005-LDP5, Cl A4
5.363%, 12/15/44 (A)		903		994
JP Morgan Chase Commercial Mortgage Securities, Ser 2006-CB16, Cl A4
5.552%, 05/12/45		140		152
JP Morgan Chase Commercial Mortgage Securities, Ser 2006-CB17, Cl A4
5.429%, 12/12/43		728		775
JP Morgan Chase Commercial Mortgage Securities, Ser 2006-LDP9, Cl A2
5.134%, 05/15/47		380		402
JP Morgan Chase Commercial Mortgage Securities, Ser 2007-LD11, Cl ASB
6.006%, 06/15/49 (A)		207		223
JP Morgan Chase Commercial Mortgage Securities, Ser 2007-LD12, Cl A3
6.188%, 02/15/51 (A)		840		893

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
JP Morgan Chase Commercial Mortgage Securities, Ser 2010-C1, Cl A1
3.853%, 06/15/43 (D)	$	561	$	588
JP Morgan Mortgage Trust, Ser 2005-A1, Cl 5A1
4.485%, 02/25/35 (A)		112		115
JP Morgan Reremic, Ser 2010-4, Cl 7A1
4.337%, 08/26/35 (A) (D)		214		214
JPMorgan Chase Commercial Mortgage Securities, Ser 2001-CIB2, Cl A3
6.429%, 04/15/35		1,063		1,087
JPMorgan Chase Commercial Mortgage Securities, Ser 2002-CIB5, Cl A2
5.161%, 10/12/37		97		103
JPMorgan Chase Commercial Mortgage Securities, Ser 2003-CB7, Cl A4
4.879%, 01/12/38 (A)		238		255
JPMorgan Chase Commercial Mortgage Securities, Ser 2004-CB9, Cl A4
5.371%, 06/12/41 (A)		95		102
JPMorgan Chase Commercial Mortgage Securities, Ser 2005-LDP4, Cl A4
4.918%, 10/15/42 (A)		103		111
JPMorgan Chase Commercial Mortgage Securities, Ser 2006-LDP9, Cl A3
5.336%, 05/15/47		273		284
JPMorgan Chase Commercial Mortgage Securities, Ser 2007-CB18, Cl A4
5.440%, 06/12/47		1,200		1,258
JPMorgan Chase Commercial Mortgage Securities, Ser 2007-LD12, Cl A4
5.882%, 02/15/51 (A)		1,485		1,557
JPMorgan Chase Commercial Mortgage Securities, Ser 2007-LDPX, Cl A3
5.420%, 01/15/49		855		890
JPMorgan Chase Commercial Mortgage Securities, Ser 2008-C2, Cl A1
5.017%, 02/12/51		2		2
JPMorgan Chase Commercial Mortgage Securities, Ser 2009-IWST, Cl A2
5.633%, 12/05/27 (D)		649		740
JPMorgan Commercial Mortgage Finance, Ser 2000-C10, Cl C
7.918%, 08/15/32 (A)		122		121
JPMorgan Mortgage Trust, Ser 2004-A3, Cl 4A1
4.280%, 07/25/34 (A)		90		92
JPMorgan Mortgage Trust, Ser 2004-A4, Cl 1A1
4.609%, 09/25/34 (A)		113		117
JPMorgan Mortgage Trust, Ser 2006-A2, Cl 4A1
3.900%, 08/25/34 (A)		718		710

96 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
JPMorgan Mortgage Trust, Ser 2006-A3, Cl 6A1
3.894%, 08/25/34 (A)	$	377	$	350
LB Commercial Conduit Mortgage Trust, Ser 2007-C3, Cl A3
6.132%, 07/15/44 (A)		129		139
LB-UBS Commercial Mortgage Trust, Ser 2001-C2, Cl A2
6.653%, 11/15/27		122		124
LB-UBS Commercial Mortgage Trust, Ser 2002-C2, Cl A4
5.594%, 06/15/31		248		263
LB-UBS Commercial Mortgage Trust, Ser 2002-C4, Cl A4
4.563%, 09/15/26		78		80
LB-UBS Commercial Mortgage Trust, Ser 2003-C8, Cl A4
5.124%, 11/15/32 (A)		75		82
LB-UBS Commercial Mortgage Trust, Ser 2004-C1, Cl A4
4.568%, 01/15/31		146		155
LB-UBS Commercial Mortgage Trust, Ser 2004-C2, Cl A4
4.367%, 03/15/36		244		254
LB-UBS Commercial Mortgage Trust, Ser 2004-C7, Cl A5
4.628%, 10/15/29		101		106
LB-UBS Commercial Mortgage Trust, Ser 2005-C1, Cl A4
4.742%, 02/15/30		133		142
LB-UBS Commercial Mortgage Trust, Ser 2006-C1, Cl A4
5.156%, 02/15/31		200		218
LB-UBS Commercial Mortgage Trust, Ser 2006-C4, Cl A4
6.080%, 06/15/38 (A)		125		138
LB-UBS Commercial Mortgage Trust, Ser 2007-C1, Cl A3
5.398%, 02/15/40		40		43
LB-UBS Commercial Mortgage Trust, Ser 2007-C1, Cl AAB
5.403%, 02/15/40		64		69
LB-UBS Commercial Mortgage Trust, Ser 2008-C1, Cl AAB
6.324%, 04/15/41 (A)		166		184
LB-UBS Commercial Mortgage Trust, Ser 2008-C1, Cl A2
6.324%, 04/15/41 (A)		877		972
LVII Resecuritization Trust, Ser 2009-1, Cl A1
5.949%, 11/27/37 (A) (D)		137		140
LVII Resecuritization Trust, Ser 2009-2, Cl A4
3.000%, 09/27/37 (A) (D)		246		246

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
LVII Resecuritization Trust, Ser 2009-2, Cl A3
3.000%, 09/27/37 (A) (D)	$	300	$	299
Master Adjustable Rate Mortgages Trust, Ser 2004-13, Cl 3A6
3.075%, 11/21/34 (A)		466		468
Master Alternative Loans Trust, Ser 2003-9, Cl 2A1
6.000%, 12/25/33		255		263
Master Asset Securitization Trust, Ser 2003-2, Cl 1A1
5.000%, 03/25/18		89		91
Master Resecuritization Trust, Ser 2005, Cl PO, PO
0.000%, 05/28/35 (D)		186		119
Master Seasoned Securities Trust, Ser 2004-2, Cl A2
6.500%, 08/25/32		817		849
MASTR Asset Securitization Trust, Ser 2003-3, Cl 3A18
5.500%, 04/25/33		181		180
Merrill Lynch Mortgage Investors, Ser 2003-A4, Cl 2A
2.876%, 07/25/33 (A)		72		73
Merrill Lynch Mortgage Investors, Ser 2004-A1, Cl 4A
5.261%, 02/25/34 (A)		1,044		1,016
Merrill Lynch Mortgage Trust, Ser 2004-KEY2, Cl A4
4.864%, 08/12/39 (A)		420		441
Merrill Lynch Mortgage Trust, Ser 2005-CIP1, Cl A3A
4.949%, 07/12/38 (A)		127		135
Merrill Lynch Mortgage Trust, Ser 2005-KEY, Cl A4
5.236%, 11/12/35 (A)		418		452
Merrill Lynch Mortgage Trust, Ser 2005-LC1, Cl AJ
5.500%, 01/12/44 (A)		120		114
Merrill Lynch Mortgage Trust, Ser 2005-MCP1, Cl A4
4.747%, 06/12/43 (A)		52		56
Merrill Lynch Mortgage Trust, Ser 2006-C1, Cl A4
5.838%, 05/12/39 (A)		150		164
Merrill Lynch, Ser 2007-7, Cl A4
5.810%, 06/12/50 (A)		810		826
Merrill Lynch/Countrywide Commercial Mortgage, Ser 2006-4, Cl A3
5.172%, 12/12/49 (A)		1,654		1,713
MLCC Mortgage Investors, Ser 2004-A, Cl A2
0.684%, 04/25/29 (A)		111		102

SEI Institutional Managed Trust / Annual Report / September 30, 2010 97

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Morgan Stanley Capital I, Ser 2003-IQ6, Cl A
4.970%, 12/15/41	$	266	$	287
Morgan Stanley Capital I, Ser 2003-T11, Cl A4
5.150%, 06/13/41		190		205
Morgan Stanley Capital I, Ser 2004-HQ3, Cl A4
4.800%, 01/13/41		129		139
Morgan Stanley Capital I, Ser 2004-IQ8, Cl A4
4.900%, 06/15/40		427		445
Morgan Stanley Capital I, Ser 2004-T15, Cl A4
5.270%, 06/13/41 (A)		156		170
Morgan Stanley Capital I, Ser 2005-HQ5, Cl AAB
5.037%, 01/14/42		120		126
Morgan Stanley Capital I, Ser 2005-HQ5, Cl A4
5.168%, 01/14/42		215		232
Morgan Stanley Capital I, Ser 2005-HQ6, Cl A4A
4.989%, 08/13/42		786		853
Morgan Stanley Capital I, Ser 2005-HQ7, Cl AAB
5.185%, 11/14/42 (A)		59		63
Morgan Stanley Capital I, Ser 2005-HQ7, Cl A4
5.376%, 11/14/42 (A)		416		459
Morgan Stanley Capital I, Ser 2005-IQ9, Cl A5
4.700%, 07/15/56		264		281
Morgan Stanley Capital I, Ser 2005-T17, Cl A4
4.520%, 12/13/41		35		35
Morgan Stanley Capital I, Ser 2006-T21, Cl A4
5.162%, 10/12/52 (A)		300		326
Morgan Stanley Capital I, Ser 2007-HQ13, Cl A1
5.357%, 12/15/44		139		143
Morgan Stanley Capital I, Ser 2007-IQ16, Cl A4
5.809%, 12/12/49		846		896
Morgan Stanley Capital I, Ser 2007-T27, Cl A4
5.802%, 06/11/42 (A) (E)		100		111
Morgan Stanley Dean Witter Capital I, Ser 2001-TOP3, Cl B
6.550%, 07/15/33		159		165
Morgan Stanley Dean Witter Capital I, Ser 2002-HQ, Cl B
6.640%, 04/15/34		111		118

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Morgan Stanley Dean Witter Capital I, Ser 2003-HQ2, Cl A2
4.920%, 03/12/35	$	306	$	327
Morgan Stanley Dean Witter Capital I, Ser 2003-HQ2, Cl B
5.040%, 03/12/35		111		115
Nomura Asset Securities, Ser 1998-D6, Cl A2
7.319%, 03/15/30 (A)		406		456
PNC Mortgage Acceptance, Ser 2001-C1, Cl A2
6.360%, 03/12/34		132		134
Prime Mortgage Trust, Ser 2004-CL1, Cl 1PO, PO
0.000%, 02/25/34		71		55
Prime Mortgage Trust, Ser 2004-CL1, Cl 1A1
6.000%, 02/25/34		152		158
Prudential Mortgage Capital Funding, Ser 2001-ROCK, Cl B
6.760%, 05/10/34		144		148
RBSSP Resecuritization Trust, Ser 2010-4, Cl 12A1
4.500%, 03/26/21 (D)		334		340
Residential Accredit Loans, Ser 2003-QS15, Cl A7
5.500%, 08/25/33		210		217
Residential Accredit Loans, Ser 2003-QS18, Cl A1
5.000%, 09/25/18		241		245
Residential Accredit Loans, Ser 2004-QA7, Cl A4
5.500%, 05/25/34		282		242
Residential Asset Mortgage Products, Ser 2004-SL1, Cl A8
6.500%, 11/25/31		880		876
Residential Asset Securitization Trust, Ser 2002-A13, Cl A4
5.250%, 12/25/17		185		186
Residential Asset Securitization Trust, Ser 2003-A5, Cl A1
5.500%, 06/25/33		169		171
Residential Asset Securitization Trust, Ser 2004-IP2, Cl 2A1
2.897%, 12/25/34 (A)		1,011		965
Salomon Brothers Mortgage Securities VII, Ser 2000-C2, Cl C
7.727%, 07/18/33 (A)		53		53
Salomon Brothers Mortgage Securities VII, Ser 2002-KEY2, Cl A2
4.467%, 03/18/36		45		46
Salomon Brothers Mortgage Securities VII, Ser 2003-HYB1, Cl A
3.690%, 09/25/33 (A)		238		237

98 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Sequoia Mortgage Trust, Ser 2010-H1, Cl A1
3.750%, 02/25/40 (A)	$	182	$	185
Station Place Securitization Trust, Ser 2009-1, Cl A
1.847%, 01/25/40 (A) (D)		250		251
Structured Asset Securities, Ser 2003-16, Cl A3
0.847%, 06/25/33 (A)		234		214
Structured Asset Securities, Ser 2003-24A, Cl 3A2
2.679%, 07/25/33 (A)		376		371
Structured Asset Securities, Ser 2003-32, Cl 1A1
5.147%, 11/25/33 (A)		158		160
Structured Asset Securities, Ser 2003-33H, Cl 1A1
5.500%, 10/25/33		283		284
Structured Asset Securities, Ser 2003-37A, Cl 2A
4.998%, 12/25/33 (A)		172		179
Structured Asset Securities, Ser 2004-5H, Cl A4
5.540%, 12/25/33		400		411
TIAA Seasoned Commercial Mortgage Trust, Ser 2007-C4, Cl A3
6.071%, 08/15/39 (A)		1,000		1,118
US Bank, Ser 2007-1, Cl A
5.920%, 05/25/12		477		498
Vendee Mortgage Trust CMO, Ser 1993-1, Cl ZB
7.250%, 02/15/23		1,034		1,209
Wachovia Bank Commercial Mortgage Trust, Ser 2002-C1, Cl A4
6.287%, 04/15/34		88		93
Wachovia Bank Commercial Mortgage Trust, Ser 2003-C7, Cl A1
4.241%, 10/15/35 (D)		31		31
Wachovia Bank Commercial Mortgage Trust, Ser 2003-C8, Cl A3
4.445%, 11/15/35		143		147
WaMu Mortgage Pass Through Certificates, Ser 2003-AR10, Cl A7
2.825%, 10/25/33 (A)		320		310
WaMu Mortgage Pass Through Certificates, Ser 2003-AR7, Cl A7
2.831%, 08/25/33 (A)		191		186
WaMu Mortgage Pass Through Certificates, Ser 2003-AR8, Cl A
2.834%, 08/25/33 (A)		84		85
WaMu Mortgage Pass Through Certificates, Ser 2003-AR9, Cl 1A6
2.829%, 09/25/33 (A)		296		287

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
WaMu Mortgage Pass Through Certificates, Ser 2003-S13, Cl 21A1
4.500%, 12/25/18	$	181	$	188
WaMu Mortgage Pass Through Certificates, Ser 2003-S4, Cl 2A10
16.508%, 06/25/33 (A)		80		80
WaMu Mortgage Pass Through Certificates, Ser 2003-S9, Cl A8
5.250%, 10/25/33		718		712
WaMu Mortgage Pass Through Certificates, Ser 2004-AR3, Cl A1
2.712%, 06/25/34 (A)		132		127
WaMu Mortgage Pass Through Certificates, Ser 2004-AR3, Cl A2
4.243%, 06/25/34 (A)		198		197
WaMu Mortgage Pass Through Certificates, Ser 2004-CB2, Cl 7A
5.500%, 08/25/19		277		288
WaMu Mortgage Pass Through Certificates, Ser 2004-RA4, Cl 3A
7.500%, 07/25/34		699		720
WaMu Mortgage Pass Through Certificates, Ser 2004-S2, Cl 2A4
5.500%, 06/25/34		225		234
Wells Fargo Mortgage Backed Securities Trust, Ser 2003-15, Cl 1A1
4.750%, 12/25/18		477		495
Wells Fargo Mortgage Backed Securities Trust, Ser 2003-C, Cl A6
3.292%, 02/25/33 (A)		176		178
Wells Fargo Mortgage Backed Securities Trust, Ser 2003-J, Cl 2A5
4.438%, 10/25/33 (A)		170		174
Wells Fargo Mortgage Backed Securities Trust, Ser 2003-K, Cl 1A1
4.472%, 11/25/33 (A)		269		267
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-E, Cl A2
4.500%, 05/25/34 (A)		107		108
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-E, Cl A8
4.858%, 05/25/34 (A)		250		253
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-EE, Cl 2A2
3.050%, 12/25/34 (A)		327		323
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-EE, Cl 3A1
3.596%, 12/25/34 (A)		154		151
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-EE, Cl 2A1
3.050%, 12/25/34 (A)		327		319
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-I, Cl 1A1
3.322%, 07/25/34 (A)		286		285

SEI Institutional Managed Trust / Annual Report / September 30, 2010 99

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-P, Cl 2A1
3.060%, 09/25/34 (A)	$	160	$	159
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-V, Cl 1A2
3.143%, 10/25/34 (A)		341		343
Wells Fargo Mortgage Backed Securities Trust, Ser 2004-V, Cl 1A1
3.143%, 10/25/34 (A)		171		169
Wells Fargo Mortgage Backed Securities Trust, Ser 2005-AR8, Cl 2A1
3.098%, 06/25/35 (A)		286		279
Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-H, Cl 1A1
4.534%, 06/25/34 (A)		637		628
				97,242
Total Mortgage-Backed Securities (Cost $438,339) ($ Thousands)				452,446
CORPORATE OBLIGATIONS — 24.8%
Consumer Discretionary — 1.3%
British Sky Broadcasting Group
9.500%, 11/15/18 (D)		298		407
CBS
7.875%, 07/30/30		50		60
5.750%, 04/15/20		25		28
Comcast
6.500%, 01/15/17		725		862
6.400%, 03/01/40		250		278
5.850%, 11/15/15 (E)		465		539
5.150%, 03/01/20		125		137
Comcast Cable Communications
8.375%, 03/15/13		592		687
Comcast Cable Holdings
10.125%, 04/15/22		45		65
COX Communications
5.450%, 12/15/14		70		79
Cox Enterprises
7.375%, 07/15/27 (D)		50		59
Daimler Finance LLC
7.300%, 01/15/12		170		183
6.500%, 11/15/13		80		92
DIRECTV Holdings
6.000%, 08/15/40		779		805
4.600%, 02/15/21		100		103
Grupo Televisa
6.625%, 01/15/40 (E)		124		141
Historic TW
9.150%, 02/01/23		200		273
Lowe’s MTN
7.110%, 05/15/37		110		145

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Mattel
6.200%, 10/01/40	$	260	$	264
4.350%, 10/01/20 (E)		170		172
NBC Universal
5.950%, 04/01/41 (D)		396		407
4.375%, 04/01/21 (D)		346		350
2.875%, 04/01/16 (D)		417		417
Newell Rubbermaid
4.700%, 08/15/20		47		49
News America
7.300%, 04/30/28		100		116
7.250%, 05/18/18		50		62
6.150%, 03/01/37		445		479
Omnicom Group
4.450%, 08/15/20		309		318
Staples
9.750%, 01/15/14		80		99
TCI Communications
8.750%, 08/01/15		210		264
7.125%, 02/15/28		200		229
Thomson Reuters
5.950%, 07/15/13 (E)		213		239
4.700%, 10/15/19		75		83
Time Warner
7.625%, 04/15/31		620		769
6.100%, 07/15/40		159		171
Time Warner Cable
8.250%, 04/01/19 (E)		200		258
7.300%, 07/01/38 (E)		110		135
6.750%, 07/01/18		800		954
Viacom
6.250%, 04/30/16		100		117
				10,895
Consumer Staples — 1.0%
Altria Group
10.200%, 02/06/39		135		199
9.700%, 11/10/18 (E)		315		427
Anheuser-Busch InBev Worldwide
7.750%, 01/15/19 (D) (E)		1,095		1,421
7.200%, 01/15/14 (D)		120		140
5.375%, 11/15/14 (D)		220		247
4.125%, 01/15/15		590		635
Bunge Finance
8.500%, 06/15/19 (E)		120		145
CVS Caremark
6.125%, 09/15/39		40		44
Diageo Capital
4.828%, 07/15/20		90		101
Diageo Finance BV
5.500%, 04/01/13		90		99
Dr Pepper Snapple Group
6.820%, 05/01/18		380		470

100 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
General Mills
5.250%, 08/15/13	$	90	$	100
Kraft Foods
6.500%, 02/09/40 (E)		960		1,124
6.125%, 08/23/18		225		266
5.375%, 02/10/20		546		610
Kroger
7.500%, 04/01/31		30		39
5.400%, 07/15/40		14		15
PepsiCo
7.900%, 11/01/18		50		67
5.500%, 01/15/40 (E)		234		268
SABMiller
5.500%, 08/15/13 (D)		90		99
Wal-Mart Stores
5.625%, 04/01/40		240		272
5.250%, 09/01/35		195		209
4.875%, 07/08/40		435		444
WM Wrigley Jr
3.700%, 06/30/14 (D)		260		269
Woolworths
4.000%, 09/22/20 (D)		510		520
2.550%, 09/22/15 (D)		365		369
				8,599
Energy — 2.1%
Anadarko Petroleum
7.625%, 03/15/14 (E)		180		204
Apache
5.100%, 09/01/40		240		241
BP Capital Markets
3.875%, 03/10/15 (E)		185		193
Cenovus Energy
6.750%, 11/15/39		480		580
5.700%, 10/15/19		55		64
CenterPoint Energy Resources
7.875%, 04/01/13		25		29
5.950%, 01/15/14		70		78
ConocoPhillips
6.000%, 01/15/20 (E)		100		123
5.900%, 05/15/38		415		482
Encana
6.500%, 05/15/19 (E)		150		184
6.500%, 02/01/38		675		787
Energy Transfer Partners
9.000%, 04/15/19		225		288
ENI
5.700%, 10/01/40 (D)		300		307
4.150%, 10/01/20 (D)		600		608
Halliburton
6.150%, 09/15/19		80		95
Hess
5.600%, 02/15/41 (E)		173		181
Husky Energy
5.900%, 06/15/14		293		326

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Kinder Morgan Energy Partners
6.550%, 09/15/40	$	133	$	146
Marathon Oil
7.500%, 02/15/19 (E)		100		128
Motiva Enterprises
6.850%, 01/15/40 (D)		400		480
Noble Holding International
6.200%, 08/01/40		255		282
Petrobras International Finance - Pifco
6.875%, 01/20/40		251		287
Petro-Canada
6.800%, 05/15/38		595		705
6.050%, 05/15/18		115		134
Petroleos Mexicanos MTN
5.500%, 01/21/21 (D)		80		85
Plains All American Pipeline
3.950%, 09/15/15		323		339
Ras Laffan Liquefied Natural Gas III
5.500%, 09/30/14 (D)		250		274
Rockies Express Pipeline
3.900%, 04/15/15 (D)		695		695
Shell International Finance BV
4.300%, 09/22/19		300		329
3.100%, 06/28/15 (E)		636		670
Southern Union
8.250%, 11/15/29		875		1,016
Spectra Energy Capital
8.000%, 10/01/19		200		253
Statoil
3.125%, 08/17/17		205		213
Suncor Energy
6.500%, 06/15/38 (E)		380		436
Talisman Energy
7.750%, 06/01/19		100		128
Tennessee Gas Pipeline
8.000%, 02/01/16		1,000		1,190
Tosco
7.800%, 01/01/27		65		84
Total Capital
3.000%, 06/24/15		370		388
TransCanada Pipelines
6.500%, 08/15/18		175		214
TransCanada PipeLines
7.125%, 01/15/19		50		63
3.800%, 10/01/20		470		480
Transocean
6.500%, 11/15/20		120		131
4.950%, 11/15/15		785		816
Union Pacific Resources Group
7.150%, 05/15/28		52		53
Valero Energy
9.375%, 03/15/19		404		516
6.625%, 06/15/37		935		939

SEI Institutional Managed Trust / Annual Report / September 30, 2010 101

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Williams
7.875%, 09/01/21	$	1,022	$	1,241
7.750%, 06/15/31		550		628
XTO Energy
6.250%, 08/01/17		100		124
4.625%, 06/15/13		30		33
				18,270
Financials — 14.7%
ACE INA Holdings
5.600%, 05/15/15		100		113
Achmea Hypotheekbank
3.200%, 11/03/14 (D)		1,020		1,084
AEP Texas Central Transition Funding
5.090%, 07/01/15		1,300		1,474
4.980%, 07/01/13		332		351
Aflac
6.450%, 08/15/40		25		26
Allstate
5.000%, 08/15/14		70		78
Allstate Life Global Funding Trusts MTN
5.375%, 04/30/13		610		674
American Express
7.250%, 05/20/14		105		123
7.000%, 03/19/18 (E)		170		205
American Express Credit MTN
7.300%, 08/20/13		680		781
2.750%, 09/15/15 (E)		580		584
American Honda Finance MTN
3.875%, 09/21/20 (D)		495		501
ANZ National Int’l
2.375%, 12/21/12 (D)		100		101
AON
6.250%, 09/30/40		19		20
3.500%, 09/30/15		11		11
Associates Corp of North America
6.950%, 11/01/18		200		221
Australia & New Zealand Banking Group
3.700%, 01/13/15 (D)		530		558
AvalonBay Communities MTN
5.700%, 03/15/17‡		1,300		1,463
Bank of America
7.375%, 05/15/14		1,160		1,333
6.500%, 08/01/16		1,325		1,490
6.100%, 06/15/17		1,875		2,004
6.000%, 09/01/17 (E)		375		406
5.750%, 12/01/17		110		118
5.650%, 05/01/18		1,370		1,452
5.625%, 07/01/20		570		602
5.420%, 03/15/17		100		102
4.500%, 04/01/15		150		157
3.700%, 09/01/15 (E)		405		409

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Bank of New York Mellon MTN
4.600%, 01/15/20	$	40	$	44
2.950%, 06/18/15 (E)		125		131
Bank of Nova Scotia
3.400%, 01/22/15		94		100
Bank of Tokyo-Mitsubishi UFJ
3.850%, 01/22/15 (D) (E)		100		108
Barclays Bank
5.200%, 07/10/14		150		166
5.125%, 01/08/20 (E)		515		557
5.000%, 09/22/16 (E)		1,450		1,587
2.500%, 01/23/13 (E)		150		153
BB&T
4.900%, 06/30/17		200		212
3.950%, 04/29/16 (E)		160		169
3.850%, 07/27/12		150		157
3.375%, 09/25/13		195		205
Bear Stearns
7.250%, 02/01/18		1,500		1,827
Berkshire Hathaway Finance
5.400%, 05/15/18 (E)		110		126
BlackRock
6.250%, 09/15/17		145		173
Blackstone Holdings Finance
5.875%, 03/15/21 (D)		295		299
BPCE
2.375%, 10/04/13 (D)		493		493
Canadian Imperial Bank of Commerce
2.600%, 07/02/15 (D)		250		260
Capital One Bank USA
8.800%, 07/15/19		325		415
Capital One Financial
7.375%, 05/23/14		225		263
6.750%, 09/15/17		70		84
Caterpillar Financial Services MTN
7.150%, 02/15/19 (E)		110		142
5.850%, 09/01/17		140		165
CDP Financial
3.000%, 11/25/14 (D)		900		935
Charles Schwab
4.950%, 06/01/14		20		22
Chase Capital II
0.844%, 02/01/27 (A)		560		426
Cie de Financement Foncier
2.500%, 09/16/15 (D)		400		402
2.125%, 04/22/13 (D)		300		305
Citigroup
8.500%, 05/22/19		364		450
8.125%, 07/15/39		2,361		2,982
6.500%, 08/19/13		250		276
6.375%, 08/12/14 (E)		710		788
6.125%, 05/15/18		115		126
6.010%, 01/15/15		325		357
6.000%, 08/15/17 (E)		620		670

102 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
5.875%, 02/22/33	$	710	$	680
5.375%, 08/09/20 (E)		535		554
5.300%, 01/07/16		775		826
4.750%, 05/19/15 (E)		305		321
1.150%, 12/09/11 (A)		885		894
1.047%, 08/25/36 (A)		1,500		954
Citigroup Funding
1.875%, 10/22/12 (E)		915		938
City National Capital Trust I
9.625%, 02/01/40		1,300		1,350
CME Group
5.750%, 02/15/14		46		52
CNA Financial
5.875%, 08/15/20		72		73
Comerica
3.000%, 09/16/15		35		35
CommonWealth REIT
6.650%, 01/15/18‡		60		65
6.250%, 08/15/16‡		100		107
Credit Suisse New York
6.000%, 02/15/18		370		409
Credit Suisse NY MTN
5.300%, 08/13/19		250		277
Credit Suisse USA
5.125%, 08/15/15 (E)		170		191
Deutsche Bank MTN
4.875%, 05/20/13		750		815
3.875%, 08/18/14 (E)		100		107
2.375%, 01/11/13 (E)		1,355		1,386
Dexia Credit Local
2.750%, 04/29/14 (D)		1,795		1,845
Discover Financial Services
6.450%, 06/12/17		250		269
ERP Operating
5.750%, 06/15/17‡		125		141
5.125%, 03/15/16‡		830		909
Export-Import Bank of Korea
5.500%, 10/17/12		233		249
Farmers Exchange Capital
7.200%, 07/15/48 (D)		1,721		1,648
7.050%, 07/15/28 (D)		480		474
FIH Erhvervsbank
2.000%, 06/12/13 (D)		640		655
General Electric Capital MTN
6.750%, 03/15/32		1,665		1,851
6.000%, 08/07/19		645		726
5.900%, 05/13/14		850		963
5.875%, 01/14/38		1,950		1,980
5.625%, 09/15/17		700		783
5.500%, 01/08/20 (E)		180		197
5.400%, 02/15/17		200		220
2.625%, 12/28/12		1,460		1,522
2.000%, 09/28/12		2,955		3,036
1.384%, 05/22/13 (A)		760		758
0.414%, 04/10/12 (A)		500		498

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Goldman Sachs Group MTN
7.500%, 02/15/19	$	700	$	833
6.750%, 10/01/37 (E)		305		317
6.250%, 09/01/17		650		730
6.150%, 04/01/18		780		865
6.000%, 05/01/14		2,800		3,124
6.000%, 06/15/20 (E)		835		918
5.375%, 03/15/20		950		1,001
5.250%, 10/15/13 (E)		140		152
3.700%, 08/01/15 (E)		381		390
1.151%, 12/05/11 (A)		2,030		2,049
Guardian Life Insurance of America
7.375%, 09/30/39 (D)		1,250		1,483
Hartford Financial Services Group
5.500%, 03/30/20 (E)		450		458
HCP MTN
6.700%, 01/30/18‡		1,119		1,231
6.300%, 09/15/16‡		430		467
6.000%, 01/30/17‡		89		95
5.950%, 09/15/11‡		1,155		1,201
5.650%, 12/15/13‡(E)		401		431
Health Care REIT
6.125%, 04/15/20‡		1,775		1,900
Healthcare Realty Trust
6.500%, 01/17/17‡		1,400		1,516
HSBC Bank
4.125%, 08/12/20 (D)		100		102
HSBC Bank USA
4.875%, 08/24/20 (E)		360		376
HSBC Bank USA NY
4.625%, 04/01/14		175		188
HSBC Finance
5.500%, 01/19/16		140		154
4.750%, 07/15/13		160		170
HSBC Holdings PLC
6.800%, 06/01/38		465		539
International Lease Finance MTN
5.250%, 01/10/13		100		99
Itau Unibanco Holding MTN
6.200%, 04/15/20 (D) (E)		380		396
Jackson National Life Global Funding MTN
5.375%, 05/08/13 (D)		200		217
Jefferies Group
6.450%, 06/08/27		160		157
6.250%, 01/15/36		120		110
John Deere Capital MTN
5.750%, 09/10/18		100		118
JP Morgan Chase Capital XIII
1.239%, 09/30/34 (A)		500		377
JPMorgan Chase
4.950%, 03/25/20		130		139
3.700%, 01/20/15		110		116

SEI Institutional Managed Trust / Annual Report / September 30, 2010 103

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
JPMorgan Chase Bank
6.000%, 10/01/17 (E)	$	2,634	$	2,990
JPMorgan Chase Capital XV
5.875%, 03/15/35		1,645		1,605
JPMorgan Chase Capital XXV
6.800%, 10/01/37		416		424
KeyBank
5.800%, 07/01/14 (E)		250		273
Kilroy Realty
6.625%, 06/01/20‡(D)		195		198
Korea Development Bank
4.375%, 08/10/15 (E)		350		371
3.250%, 03/09/16 (E)		534		535
Lazard Group
7.125%, 05/15/15		438		478
6.850%, 06/15/17		599		641
Liberty Mutual Group
7.500%, 08/15/36 (D)		242		246
Lloyds TSB Bank MTN
6.500%, 09/14/20 (D)		285		288
M&T Bank
5.375%, 05/24/12		80		85
Macquarie Group
7.300%, 08/01/14		1,475		1,668
Massachusetts Mutual Life Insurance
8.875%, 06/01/39 (D)		890		1,216
MassMutual Global Funding II
2.875%, 04/21/14 (D)		100		105
Merrill Lynch
6.875%, 04/25/18		100		112
6.400%, 08/28/17		150		164
6.150%, 04/25/13		140		153
6.050%, 05/16/16		920		979
MetLife
6.750%, 06/01/16		390		466
6.400%, 12/15/36		695		650
Metropolitan Life Global Funding I
5.125%, 06/10/14 (D)		100		111
2.875%, 09/17/12 (D)		200		206
2.500%, 01/11/13 (D)		110		113
2.500%, 09/29/15 (D)		520		521
Monumental Global Funding
5.500%, 04/22/13 (D)		65		70
Morgan Stanley
7.300%, 05/13/19		100		115
6.625%, 04/01/18		1,770		1,962
6.250%, 08/28/17 (E)		200		219
5.950%, 12/28/17 (E)		297		319
5.750%, 08/31/12 (E)		180		193
5.625%, 09/23/19		285		297
5.550%, 04/27/17		985		1,044
5.500%, 01/26/20		700		720
5.500%, 07/24/20		260		268
5.450%, 01/09/17		470		496

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
4.750%, 04/01/14 (E)	$	620	$	648
4.200%, 11/20/14		156		162
0.889%, 06/20/12 (A)		2,385		2,404
0.554%, 01/18/11 (A) (E)		325		325
National Australia Bank
3.750%, 03/02/15 (D)		120		127
2.500%, 01/08/13 (D)		150		153
National City
6.875%, 05/15/19		50		59
4.900%, 01/15/15		200		221
National City Bank
0.908%, 06/07/17 (A)		1,300		1,167
National Rural Utilities Cooperative Finance
10.375%, 11/01/18		60		86
2.625%, 09/16/12		25		26
New York Life Global Funding
4.650%, 05/09/13 (D)		150		162
3.000%, 05/04/15 (D)		720		751
NIBC Bank MTN
2.800%, 12/02/14 (D)		615		642
Nomura Holdings
6.700%, 03/04/20 (E)		115		131
5.000%, 03/04/15		40		43
Nordea Bank
3.700%, 11/13/14 (D)		630		666
Northern Trust
5.500%, 08/15/13		200		225
Northwestern Mutual Life Insurance
6.063%, 03/30/40 (D)		350		407
Pacific Life Global Funding MTN
5.150%, 04/15/13 (D)		100		108
5.000%, 05/15/17 (D)		50		53
Pipeline Funding
7.500%, 01/15/30 (D)		1,500		1,588
PNC Funding
5.125%, 02/08/20		90		97
Power Receivables Financial
6.290%, 01/01/12 (D)		105		105
Principal Life Income Funding Trusts MTN
5.300%, 12/14/12		125		134
5.300%, 04/24/13 (E)		125		135
5.100%, 04/15/14		225		245
Prudential Holdings
8.695%, 12/18/23 (D)		1,200		1,521
1.414%, 12/18/17 (A) (D)		750		648
Qatari Diar Finance QSC
5.000%, 07/21/20 (D)		550		577
Rabobank Nederland MTN
3.200%, 03/11/15 (D)		200		209
Simon Property Group
10.350%, 04/01/19‡		130		182
6.750%, 05/15/14‡		50		58
5.650%, 02/01/20‡		38		42

104 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Stadshypotek
1.450%, 09/30/13 (D)	$	349	$	350
Svensk Exportkredit
3.250%, 09/16/14		652		695
Tanger Properties
6.125%, 06/01/20‡		215		235
Teachers Insurance & Annuity Association of America
6.850%, 12/16/39 (D)		315		388
Toronto-Dominion Bank
2.200%, 07/29/15 (D) (E)		100		101
Toyota Motor Credit MTN
3.200%, 06/17/15		87		92
Travelers Property Casualty
7.750%, 04/15/26		100		128
UBS MTN
5.875%, 12/20/17 (E)		120		136
US Bancorp MTN
2.875%, 11/20/14		138		144
2.000%, 06/14/13		75		77
Wachovia
5.750%, 06/15/17 (E)		485		554
Wachovia Bank
6.600%, 01/15/38		380		431
6.000%, 11/15/17		875		1,000
0.867%, 03/15/16 (A)		400		367
WEA Finance
7.500%, 06/02/14 (D)		1,361		1,584
7.125%, 04/15/18 (D) (E)		200		235
6.750%, 09/02/19 (D)		70		83
Wells Fargo MTN
5.625%, 12/11/17 (E)		180		205
3.750%, 10/01/14		390		413
Westfield Group
5.400%, 10/01/12 (D)		319		340
Westpac Banking
4.875%, 11/19/19 (E)		550		590
3.000%, 08/04/15		739		755
2.250%, 11/19/12 (E)		880		897
WR Berkley
5.375%, 09/15/20		185		189
ZFS Finance USA Trust IV
5.875%, 05/09/32 (A) (D)		1,750		1,642
				129,232
Government — 0.4%
Chile Government International Bond
3.875%, 08/05/20		595		617
Kommunalbanken
1.750%, 10/05/15 (D)		502		501
Mexico Government International Bond MTN
6.375%, 01/16/13		200		223
Poland Government International Bond
3.875%, 07/16/15		265		276

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Province of Ontario Canada
4.400%, 04/14/20	$	100	$	110
2.950%, 02/05/15		240		254
Province of Quebec Canada
6.350%, 01/30/26		70		95
3.500%, 07/29/20		191		196
Qatar Govt International Bond
4.000%, 01/20/15 (D)		885		934
Russian Foreign Bond - Eurobond
3.625%, 04/29/15 (D)		300		302
				3,508
Health Care — 0.4%
Allergan
3.375%, 09/15/20		575		575
Amgen
5.750%, 03/15/40		192		218
4.500%, 03/15/20		22		24
3.450%, 10/01/20		585		589
Bristol-Myers Squibb
5.450%, 05/01/18		245		291
CareFusion
4.125%, 08/01/12 (E)		205		215
Coventry Health Care
5.950%, 03/15/17 (E)		391		391
Hospira
5.600%, 09/15/40		175		181
5.550%, 03/30/12		100		107
Life Technologies
6.000%, 03/01/20		166		188
4.400%, 03/01/15		233		249
Medco Health Solutions
2.750%, 09/15/15		35		36
Pfizer
5.350%, 03/15/15		120		139
Pharmacia
6.500%, 12/01/18		120		150
UnitedHealth Group
6.875%, 02/15/38		150		179
WellPoint
6.375%, 06/15/37 (E)		244		272
				3,804
Industrials — 0.8%
BAE Systems Holdings
5.200%, 08/15/15 (D)		90		99
Browning-Ferris Industries
9.250%, 05/01/21		45		57
Burlington Northern Santa Fe
7.290%, 06/01/36		90		116
5.750%, 03/15/18		950		1,102
5.750%, 05/01/40		456		503
4.700%, 10/01/19		75		82

SEI Institutional Managed Trust / Annual Report / September 30, 2010 105

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Canadian National Railway
5.850%, 11/15/17	$	50	$	59
Cargill
7.350%, 03/06/19 (D)		250		317
Continental Airlines 2000-1 Class A-1 Pass Through Trust
8.048%, 11/01/20		373		403
Continental Airlines 2009-2 Class A Pass Through Trust
7.250%, 11/10/19		500		545
CSX
6.250%, 03/15/18 (E)		155		184
Delta Air Lines 2010-1 Class A Pass Through Trust
6.200%, 07/02/18 (E)		1,400		1,456
Hutchison Whampoa International 09
4.625%, 09/11/15 (D)		820		877
JetBlue Airways 2004-1 G-1 Pass Through Trust
0.912%, 12/15/13 (A)		597		543
Lockheed Martin
5.720%, 06/01/40 (D)		82		94
Ryder System MTN
3.600%, 03/01/16		35		36
Tyco International Finance
8.500%, 01/15/19		50		66
Union Pacific
7.000%, 02/01/16		150		183
United Parcel Service of America
8.375%, 04/01/20		50		71
United Technologies
8.875%, 11/15/19		110		156
Waste Management
4.750%, 06/30/20		93		100
				7,049
Information Technology — 0.5%
Adobe Systems
4.750%, 02/01/20		175		188
Arrow Electronics
6.875%, 07/01/13		25		28
6.875%, 06/01/18		95		109
6.000%, 04/01/20		45		48
Cisco Systems
5.900%, 02/15/39 (E)		330		381
5.500%, 01/15/40		423		465
4.450%, 01/15/20		575		632
Dell
5.650%, 04/15/18		90		104
Hewlett-Packard
2.125%, 09/13/15 (E)		715		721
HP Enterprise Services
7.450%, 10/15/29		125		167

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
International Business Machines
8.000%, 10/15/38	$	100	$	147
Intuit
5.750%, 03/15/17		75		85
Microsoft
4.500%, 10/01/40		14		14
1.625%, 09/25/15		90		90
Oracle
5.375%, 07/15/40 (D) (E)		514		553
5.000%, 07/08/19		200		230
Xerox
8.250%, 05/15/14		90		108
				4,070
Materials — 0.4%
BHP Billiton Finance USA
6.500%, 04/01/19 (E)		125		153
Dow Chemical
8.550%, 05/15/19 (E)		734		927
5.900%, 02/15/15		320		357
4.850%, 08/15/12 (E)		745		788
EI du Pont de Nemours
4.900%, 01/15/41		25		25
1.950%, 01/15/16		40		40
PPG Industries
9.000%, 05/01/21		145		192
Praxair
5.200%, 03/15/17		70		80
4.375%, 03/31/14		75		82
Rio Tinto Finance USA
5.875%, 07/15/13		367		409
Rio Tinto Finance USA Ltd.
8.950%, 05/01/14		80		99
Vale Overseas
6.875%, 11/10/39		144		165
4.625%, 09/15/20		265		274
				3,591
Sovereign — 0.0%
Province of Manitoba Canada
2.125%, 04/22/13		46		48
Province of Ontario Canada
4.100%, 06/16/14		235		258
Tennessee Valley Authority
5.250%, 09/15/39		40		46
				352
Telecommunication Services — 1.2%
America Movil
6.125%, 03/30/40		100		111
5.000%, 10/16/19		355		381
American Tower
5.050%, 09/01/20 (E)		139		142

106 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
AT&T
8.000%, 11/15/31	$	13	$	17
6.300%, 01/15/38		435		491
5.875%, 02/01/12		200		213
5.500%, 02/01/18		100		116
5.350%, 09/01/40 (D)		423		425
BellSouth Telecommunications
6.300%, 12/15/15		163		178
British Telecommunications
9.625%, 12/15/30		188		261
5.950%, 01/15/18		200		223
Cellco Partnership
8.500%, 11/15/18 (E)		310		422
7.375%, 11/15/13		240		284
Deutsche Telekom International Finance BV
6.000%, 07/08/19 (E)		175		208
France Telecom
8.500%, 03/01/31		50		72
7.750%, 03/01/11		236		243
GTE
8.750%, 11/01/21		300		423
6.840%, 04/15/18		150		178
Qwest
7.875%, 09/01/11		1,640		1,736
7.500%, 10/01/14		339		383
Rogers Communications
6.375%, 03/01/14		619		713
5.500%, 03/15/14		89		100
Telecom Italia Capital
6.999%, 06/04/18 (E)		150		172
Telefonica Emisiones
5.984%, 06/20/11		260		270
Telefonica Emisiones SAU
6.221%, 07/03/17		145		169
5.134%, 04/27/20		251		273
2.582%, 04/26/13		695		708
Telemar Norte Leste
5.500%, 10/23/20 (D)		510		517
Verizon Communications
8.950%, 03/01/39		50		74
6.400%, 02/15/38		95		110
6.250%, 04/01/37		145		164
5.850%, 09/15/35		40		43
Verizon Global Funding
7.750%, 12/01/30		610		788
Vodafone Group
5.450%, 06/10/19		75		87
				10,695
Utilities — 2.0%
AGL Capital
5.250%, 08/15/19		50		53
4.450%, 04/15/13		120		127

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Alabama Power
5.875%, 12/01/22	$	95	$	114
Appalachian Power
5.950%, 05/15/33		100		107
Aquila
11.875%, 07/01/12		1,210		1,392
Atmos Energy
4.950%, 10/15/14		75		83
Carolina Power & Light
5.300%, 01/15/19		175		203
Cleveland Electric Illuminating
7.880%, 11/01/17		170		213
Consolidated Edison of New York
5.700%, 06/15/40		38		43
Consumers Energy
6.700%, 09/15/19		100		125
Dominion Resources
8.875%, 01/15/19		875		1,190
6.400%, 06/15/18		180		220
DPL
6.875%, 09/01/11		467		492
Duke Energy
6.300%, 02/01/14		502		574
Duke Energy Carolinas
4.300%, 06/15/20		39		43
Duke Energy Indiana
3.750%, 07/15/20		52		54
Enel Finance International
6.000%, 10/07/39 (D)		730		755
5.125%, 10/07/19 (D) (E)		100		106
Exelon Generation
6.250%, 10/01/39		175		188
5.750%, 10/01/41		130		130
5.200%, 10/01/19		35		39
4.000%, 10/01/20		535		536
FirstEnergy Solutions
6.800%, 08/15/39 (E)		195		197
6.050%, 08/15/21		355		379
Georgia Power
4.750%, 09/01/40		18		18
Jersey Central Power & Light
7.350%, 02/01/19		100		124
Korea Hydro & Nuclear Power
3.125%, 09/16/15 (D) (E)		245		245
Massachusetts Electric
5.900%, 11/15/39 (D)		55		63
MidAmerican Energy
5.300%, 03/15/18		200		230
Midamerican Energy Holdings
6.500%, 09/15/37		200		240
Nevada Power
7.125%, 03/15/19		110		137
5.375%, 09/15/40		12		12

SEI Institutional Managed Trust / Annual Report / September 30, 2010 107

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Nevada Power, Ser A
8.250%, 06/01/11	$	770	$	805
Niagara Mohawk Power
4.881%, 08/15/19 (D)		80		88
Nisource Finance
10.750%, 03/15/16		165		218
6.125%, 03/01/22		1,400		1,585
Northern States Power
6.250%, 06/01/36		100		122
5.350%, 11/01/39		19		21
Oncor Electric Delivery
6.800%, 09/01/18		460		563
Pacific Gas & Electric
8.250%, 10/15/18		60		80
5.625%, 11/30/17		525		609
5.400%, 01/15/40		42		44
3.500%, 10/01/20		295		292
Pacificorp
6.250%, 10/15/37		225		273
5.650%, 07/15/18		175		208
Panhandle Eastern Pipeline
6.200%, 11/01/17		625		694
Progress Energy
6.850%, 04/15/12		229		248
PSEG Power
5.500%, 12/01/15		100		113
5.320%, 09/15/16		40		45
5.125%, 04/15/20		45		50
Public Service Electric & Gas MTN
5.375%, 11/01/39		28		31
2.700%, 05/01/15		45		47
Public Service of Oklahoma
5.150%, 12/01/19		33		36
Sempra Energy
8.900%, 11/15/13		180		216
6.000%, 10/15/39		50		57
Southern California Edison
5.500%, 03/15/40		50		57
4.500%, 09/01/40		190		186
Southwestern Public Service
8.750%, 12/01/18		90		116
Tennessee Valley Authority
4.625%, 09/15/60		60		62
Texas-New Mexico Power
9.500%, 04/01/19 (D)		1,290		1,696
Virginia Electric and Power
5.400%, 04/30/18		545		635
				17,629
Total Corporate Obligations (Cost $202,997) ($ Thousands)				217,694

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
ASSET-BACKED SECURITIES — 5.0%
Automotive — 0.4%
Ally Auto Receivables Trust, Ser 2009-A, Cl A3
2.330%, 06/17/13 (D)	$	100	$	102
Ally Auto Receivables Trust, Ser 2010-1, Cl A3
1.450%, 05/15/14		100		101
Ally Auto Receivables Trust, Ser 2010-3, Cl A4
1.550%, 08/17/15		89		90
Ally Auto Receivables Trust, Ser 2010-3, Cl A3
1.110%, 10/15/14		225		226
AmeriCredit Automobile Receivables Trust, Ser 2010-1, Cl A2
0.970%, 01/15/13		55		55
AmeriCredit Automobile Receivables Trust, Ser 2010-1, Cl A3
1.660%, 03/17/14		40		41
AmeriCredit Automobile Receivables Trust, Ser 2010-3, Cl A3
1.140%, 04/08/15		110		110
Bank of America Auto Trust, Ser 2009-2A, Cl A3
2.130%, 09/15/13 (D)		100		101
Bank of America Auto Trust, Ser 2009-3A, Cl A3
1.670%, 12/15/13 (D)		105		106
Bank of America Auto Trust, Ser 2010-1A, Cl A4
2.180%, 02/15/17 (D)		100		103
Bank of America Auto Trust, Ser 2010-1A, Cl A3
1.390%, 03/15/14 (D)		130		131
Bank of America Auto Trust, Ser 2010-2, Cl A3
1.310%, 07/15/14		25		25
CarMax Auto Owner Trust, Ser 2010-1, Cl A3
1.560%, 07/15/14		80		81
Chrysler Financial Auto Securitization Trust, Ser 2010-A, Cl A3
0.910%, 08/08/13		250		250
CitiFinancial Auto Issuance Trust, Ser 2009-1, Cl A3
2.590%, 10/15/13 (D)		235		239
Harley-Davidson Motorcycle Trust, Ser 2009-2, Cl A4
3.320%, 02/15/17		100		104
Honda Auto Receivables Owner Trust, Ser 2009-3, Cl A3
2.310%, 05/15/13		335		340

108 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Hyundai Auto Receivables Trust, Ser 2010-B, Cl A3
0.970%, 04/15/15	$	80	$	80
Hyundai Auto Receivables Trust, Ser 2010-B, Cl A4
1.630%, 03/15/17		90		91
Mercedes-Benz Auto Receivables Trust, Ser 2010-1A, Cl A3
1.420%, 08/15/14		180		182
Nissan Auto Receivables Owner Trust, Ser 2010-A, Cl A3
0.870%, 07/15/14		95		95
Nissan Auto Receivables Owner Trust, Ser 2010-A, Cl A4
1.310%, 09/15/16		75		75
Toyota Auto Receivables Owner Trust, Ser 2010-C, Cl A3
0.770%, 04/15/14		190		190
USAA Auto Owner Trust, Ser 2009-2, Cl A3
1.540%, 02/18/14		140		141
USAA Auto Owner Trust, Ser 2009-2, Cl A4
2.530%, 07/15/15		145		150
World Omni Auto Receivables Trust, Ser 2010-A, Cl A4
2.210%, 05/15/15		135		139
				3,348
Credit Cards — 0.9%
BA Credit Card Trust, Ser 2006-A14, Cl A14
0.317%, 04/15/16 (A)		347		344
Capital One Multi-Asset Execution Trust, Ser 2005-A10, Cl A
0.337%, 09/15/15 (A)		243		241
Capital One Multi-Asset Execution Trust, Ser 2006-A12, Cl A
0.317%, 07/15/16 (A)		666		658
Capital One Multi-Asset Execution Trust, Ser 2006-A4, Cl A4
0.297%, 12/16/13 (A)		848		847
Capital One Multi-Asset Execution Trust, Ser 2006-A5, Cl A5
0.317%, 01/15/16 (A)		265		263
Chase Issuance Trust, Ser 2007-A17, Cl A
5.120%, 10/15/14		915		996
Citibank Credit Card Issuance Trust, Ser 2005-A2, Cl A2
4.850%, 03/10/17		175		198
Citibank Credit Card Issuance Trust, Ser 2009-A4, Cl A4
4.900%, 06/23/16		220		247

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Citibank Credit Card Issuance Trust, Ser 2009-A5, Cl A5
2.250%, 12/23/14	$	675	$	695
Discover Card Master Trust, Ser 2009-A2, Cl A
1.650%, 02/17/15 (A)		1,939		1,973
Discover Card Master Trust, Ser 2010-A2, Cl A2
0.837%, 03/15/18 (A)		369		369
GE Capital Credit Card Master Note Trust, Ser 2009-2, Cl A
3.690%, 07/15/15		150		157
MBNA Credit Card Master Note Trust, Ser 2006-A5, Cl A5
0.317%, 10/15/15 (A)		901		894
				7,882
Mortgage Related Securities — 1.7%
Aegis Asset Backed Securities Trust, Ser 2003-3, Cl M1
1.393%, 01/25/34 (A)		505		444
Aegis Asset Backed Securities Trust, Ser 2004-5, Cl M1
0.993%, 12/25/34 (A)		1,248		1,173
Aegis Asset Backed Securities Trust, Ser 2004-6, Cl M1
0.883%, 03/25/35 (A)		1,277		1,245
Argent Securities, Ser 2003-W5, Cl M1
1.043%, 10/25/33 (A)		498		379
Asset Backed Securities Home Equity, Ser 2005-HE6, Cl M1
0.833%, 07/25/35 (A)		1,235		1,208
Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE2, Cl 1A1
0.443%, 03/25/37 (A)		901		831
BNC Mortgage Loan Trust, Ser 2008-4, Cl A3A
0.506%, 11/25/37 (A)		1,394		1,373
Citigroup Mortgage Loan Trust, Ser 2003-HE4, Cl A
0.753%, 12/25/33 (A) (D)		1,112		916
Contimortgage Home Equity Trust, Ser 1997-1, Cl A9
7.050%, 03/15/28		1		1
Contimortgage Home Equity Trust, Ser 1997-2, Cl A9
7.090%, 04/15/28		2		2
HSBC Home Equity Loan Trust, Ser 2005-2, Cl A1
0.618%, 01/20/35 (A)		106		93
HSBC Home Equity Loan Trust, Ser 2005-2, Cl M2
0.838%, 01/20/35 (A)		132		119

SEI Institutional Managed Trust / Annual Report / September 30, 2010 109

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
HSBC Home Equity Loan Trust, Ser 2006-1, Cl A1
0.507%, 01/20/36 (A)	$	388	$	352
HSBC Home Equity Loan Trust, Ser 2006-2, Cl A1
0.497%, 03/20/36 (A)		118		110
HSBC Home Equity Loan Trust, Ser 2007-1, Cl AS
0.548%, 03/20/36 (A)		129		120
HSBC Home Equity Loan Trust, Ser 2007-1, Cl A2F
5.600%, 03/20/36		200		207
HSBC Home Equity Loan Trust, Ser 2007-1, Cl M2
0.827%, 03/20/36 (A)		2,000		967
HSBC Home Equity Loan Trust, Ser 2007-3, Cl APT
1.547%, 11/20/36 (A)		302		275
IXIS Real Estate Capital Trust, Ser 2005-HE1, Cl M2
1.078%, 06/25/35 (A)		863		816
Morgan Stanley ABS Capital I, Ser 2004-WMC3, Cl M1
1.097%, 01/25/35 (A)		79		78
Morgan Stanley Capital I, Ser 2003-NC8, Cl M1
1.397%, 09/25/33 (A)		1,602		1,224
Morgan Stanley Capital I, Ser 2007-HE2, Cl A2A
0.387%, 01/25/37 (A)		25		24
Morgan Stanley Home Equity Loans, Ser 2007-1, Cl A1
0.397%, 12/25/36 (A)		21		21
Option One Mortgage Loan Trust, Ser 2003-5, Cl M1
1.318%, 08/25/33 (A)		257		139
Residential Asset Securities, Ser 2005-EMX3, Cl AI4
0.713%, 09/25/35 (A)		823		806
Salomon Brothers Mortgage Securities VII, Ser 2003-UP1, Cl A
3.450%, 04/25/32 (D)		176		151
Saxon Asset Securities Trust, Ser 2004-1, Cl M1
1.051%, 03/25/35 (A)		1,975		1,620
				14,694
Other Asset-Backed Securities — 2.0%
AH Mortgage Advance Trust, Ser 2010-ADV1, Cl A1
3.968%, 08/15/22 (D)		210		210
CenterPoint Energy Transition Bond, Ser 2001-1, Cl A4
5.630%, 09/15/15		882		961

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Chase Funding Mortgage Loan Asset-Backed Certificates, Ser 2003-6, Cl 1A5
5.350%, 11/25/34	$	125	$	114
Chase Funding Mortgage Loan Asset-Backed Certificates, Ser 2003-6, Cl 1A4
4.499%, 11/25/34		171		170
CNH Equipment Trust, Ser 2009-C, Cl A3
1.850%, 12/16/13		40		40
CNH Equipment Trust, Ser 2010-A, Cl A3
1.540%, 07/15/14		380		385
Countrywide Asset-Backed Certificates, Ser 2005-4, Cl MV1
0.803%, 10/25/35 (A)		1,074		1,042
Indymac Residential Asset Backed Trust, Ser 2007-B, Cl 2A1
0.423%, 07/25/37 (A)		304		303
JP Morgan Mortgage Acquisition, Ser 2007-CH1, Cl AV2
0.403%, 10/25/36 (A)		1,023		1,004
Mid-State Trust, Ser 2003-11, Cl A1
4.864%, 07/15/38		1,063		1,070
Nelnet Student Loan Trust, Ser 2008-3, Cl A4
1.967%, 11/25/24 (A)		1,318		1,367
Park Place Securities, Ser 200-MHQ1, Cl M1
0.956%, 12/25/34 (A)		1,515		1,493
PennyMac Loan Trust, Ser 2010-NPL1, Cl A
4.250%, 05/25/50 (A) (D)		162		162
PG&E Energy Recovery Funding, Ser 2005-1, Cl A5
4.470%, 12/25/14		305		327
PG&E Energy Recovery Funding, Ser 2005-1, Cl A4
4.370%, 06/25/14		395		409
RSB Bondco, Ser 2007-A, Cl A1
5.470%, 10/01/14		139		146
SLC Student Loan Trust, Ser 2008-1, Cl A4A
2.137%, 12/15/32 (A)		2,016		2,095
SLM Student Loan Trust, Ser 2005-10, Cl A4
0.608%, 10/25/19 (A)		657		652
SLM Student Loan Trust, Ser 2008-4, Cl A4
1.966%, 07/25/22 (A)		245		256
SLM Student Loan Trust, Ser 2008-5, Cl A4
2.016%, 07/25/23 (A)		834		874

110 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Soundview Home Equity Loan Trust, Ser 2005-OPT3, Cl A4
0.643%, 11/25/35 (A)	$	1,309	$	1,244
Structured Asset Investment Loan Trust, Ser 2005-5, Cl A9
0.617%, 06/25/35 (A)		100		92
Structured Asset Securities, Ser 2002-AL1, Cl A2
3.450%, 02/25/32		102		97
Structured Asset Securities, Ser 2005-NC1, Cl A11
4.690%, 02/25/35		187		190
Structured Asset Securities, Ser 2006-BC5, Cl A2
0.306%, 12/25/36 (A)		1,333		1,296
Structured Asset Securities, Ser 2006-GEL4, Cl A1
0.467%, 10/25/36 (A) (D)		865		850
Structured Asset Securities, Ser 2007-BC2, Cl A2
0.433%, 03/25/37 (A)		819		799
				17,648
Total Asset-Backed Securities (Cost $41,910) ($ Thousands)				43,572
U.S. GOVERNMENT AGENCY OBLIGATIONS — 2.5%
FICO
9.800%, 11/30/17		875		1,297
9.700%, 04/05/19		320		486
8.600%, 09/26/19		845		1,221
FICO STRIPS
3.208%, 12/06/17 (B)		660		551
2.863%, 05/02/16 (B)		515		461
1.847%, 02/08/13 (B)		815		797
0.000%, 09/26/19		100		77
FNMA
7.250%, 05/15/30		618		1,096
6.250%, 05/15/29		375		490
5.375%, 06/12/17		50		60
0.291%, 07/01/11 (B)		1,665		1,662
0.276%, 08/23/12 (A)		5,970		5,968
0.245%, 01/19/11 (B)		3,010		3,009
0.170%, 10/18/10 (B)		2,005		2,005
0.000%, 10/14/11		2,900		2,900
Total U.S. Government Agency Obligations (Cost $21,797) ($ Thousands)				22,080
MUNICIPAL BONDS — 0.5%
Bay Area Toll Authority, RB
6.263%, 04/01/49		1,330		1,484
County of Clark Nevada, Ser C-BUILD, RB
6.820%, 07/01/45		305		338

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Los Angeles Community College District, GO
6.750%, 08/01/49	$	260	$	291
North Texas Tollway Authority, RB
6.718%, 01/01/49		300		328
State of California, GO
7.300%, 10/01/39		820		868
6.650%, 03/01/22		175		195
State of Illinois, GO
7.350%, 07/01/35		750		787
5.100%, 06/01/33		60		50
Total Municipal Bonds (Cost $4,025) ($ Thousands)				4,341
U.S. TREASURY OBLIGATIONS — 19.1%
U.S. Treasury Bills
0.000%, 02/10/11 (B)		212		212
U.S. Treasury Bonds
8.875%, 08/15/17 to 02/15/19		18,277		26,713
8.750%, 05/15/17 to 08/15/20		5,575		8,035
8.500%, 02/15/20		425		642
8.125%, 08/15/19		498		728
8.000%, 11/15/21		3,855		5,814
7.625%, 02/15/25		1,535		2,356
7.500%, 11/15/16 (E)		1,300		1,741
7.125%, 02/15/23		131		189
6.750%, 08/15/26		250		364
6.500%, 11/15/26		200		285
6.375%, 08/15/27		50		71
6.250%, 08/15/23		295		400
6.125%, 11/15/27		500		690
5.500%, 08/15/28		100		130
5.375%, 02/15/31		91		117
4.917%, 05/15/26 (B)		100		58
4.863%, 11/15/31 (B)		50		22
4.625%, 02/15/40		1,907		2,228
4.500%, 02/15/36		2,071		2,381
4.375%, 11/15/39 to 05/15/40		3,220		3,615
4.250%, 05/15/39		4,079		4,484
3.875%, 08/15/40		5,617		5,807
3.375%, 11/15/19		2,590		2,790
3.235%, 01/15/16 (B)		1,000		910
2.971%, 02/15/16 (B)		100		92
2.375%, 10/31/14		500		528
U.S. Treasury Bond TIPS
3.500%, 01/15/11		1,459		1,472
2.375%, 01/15/25		2,198		2,527
2.125%, 02/15/40		1,311		1,465
2.000%, 01/15/16		2,197		2,408
U.S. Treasury Note
4.875%, 08/15/16		1,220		1,448
3.500%, 05/15/20 (E)		1,454		1,578
3.250%, 12/31/16		100		109
3.125%, 10/31/16		550		597

SEI Institutional Managed Trust / Annual Report / September 30, 2010 111

SCHEDULE OF INVESTMENTS

U.S. Fixed Income Fund (Concluded)

September 30, 2010

Description	Face Amount ($ Thousands)/Shares		Market Value ($ Thousands)
2.625%, 08/15/20	$	5,323	$	5,373
2.125%, 11/30/14		12,970		13,556
1.875%, 09/30/17		1,824		1,819
1.750%, 07/31/15		6,725		6,887
1.375%, 01/15/13		350		357
1.250%, 09/30/15		10,634		10,617
1.000%, 08/31/11 to 04/30/12		21,985		22,185
0.875%, 04/30/11		5,380		5,400
0.750%, 05/31/12 to 09/15/13		5,496		5,528
U.S. Treasury STRIPS (B)
6.292%, 05/15/24		200		127
4.978%, 11/15/27		200		107
4.968%, 08/15/27		250		136
4.850%, 05/15/28		50		26
4.801%, 11/15/24		150		93
4.780%, 08/15/25		100		60
4.754%, 02/15/27		100		56
4.591%, 05/15/36		100		36
4.587%, 02/15/24		75		48
4.555%, 05/15/29		100		50
4.462%, 08/15/20		1,350		1,021
4.446%, 08/15/24		500		313
4.388%, 02/15/32		150		65
4.320%, 11/15/20		1,050		786
4.287%, 02/15/17		3,660		3,243
4.160%, 02/15/22		100		71
4.050%, 05/15/19		875		705
4.029%, 08/15/19		1,350		1,071
3.960%, 05/15/20		200		153
3.780%, 08/15/17		500		435
3.704%, 08/15/18		400		335
3.675%, 11/15/17		1,550		1,334
3.501%, 02/15/18		725		619
3.301%, 11/15/16		200		179
2.721%, 02/15/15		100		95
2.546%, 02/15/14		1,900		1,847
Total U.S. Treasury Obligations (Cost $160,315) ($ Thousands)				167,739
CASH EQUIVALENT — 3.0%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%†*		26,639,017		26,639
Total Cash Equivalent (Cost $26,639) ($ Thousands)				26,639

Description	Shares/Contracts			Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 2.1%
SEI Liquidity Fund, L.P., 0.230%†* (C)		18,124,328		$	18,124
Total Affiliated Partnership (Cost $18,124) ($ Thousands)					18,124
Total Investments — 108.5% (Cost $914,146) ($ Thousands)				$	952,635
WRITTEN OPTIONS — 0.0%
December 2010 U.S. 10 Year Note Future Call, Expires 11/27/10, Strike Price $127.00*		(90	)	$	(86	)
December 2010 U.S. 10 Year Note Future Put, Expires 11/29/10, Strike Price $121.00*		(20	)		(2	)
Total Written Options (Premiums Received $(73)) ($ Thousands)				$	(88	)

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)			Expiration Date		Unrealized Appreciation (Depreciation) ($ Thousands)
U.S. 10-Year Treasury Note		(26	)		Dec-2010	$	(29	)
U.S. 2-Year Treasury Note		(7	)		Dec-2010		(2	)
U.S. 5-Year Treasury Note		(14	)		Dec-2010		(10	)
U.S. 5-Year Treasury Note		7			Dec-2010		8
U.S. Long Treasury Bond		(60	)		Dec-2010		(66	)
U.S. Ultra Long Treasury Bond		3			Jan-2011		(1	)
						$	(100	)

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

A summary of outstanding swap agreements held by the Fund at September 30, 2010, is as follows:

Credit Default Swaps
Counterparty	Reference Entity/Obligation	Buy/Sell Protection	(Pays)/ Receives Rate			Termination Date		Notional Amount (Thousands)		Net Unrealized Depreciation ($ Thousands)
Bank of America	CMBX-NA-AJ 1 Index	BUY		(0.84	)%		10/12/52		1,500	$	(451	)
Bank of America	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		3,030		(475	)
Bank of America	CMBX-NA-AJ 1 Index	BUY		(0.84	)		10/12/52		1,050		(137	)
										$	(1,063	)

112 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Percentages are based on a Net Assets of $877,709 ($ Thousands).

* Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

‡ Real Estate Investment Trust

(A) Variable Rate Security — The rate reported on the Schedule of Investments is the rate in effect as of September 30, 2010. The date reported on the Schedule of Investments is the maturity date. The effective date may be shorter.

(B) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase.

(C) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of September 30, 2010 was $18,124 ($ Thousands).

(D) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other “accredited investors.” These securities have been determined to be liquid under guidelines established by the board of Trustees.

(E) This security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total value of securities on loan at September 30, 2010 was $17,499 ($ Thousands).

ABS — Asset-Based Security

ARM — Adjustable Rate Mortgage

Cl — Class

CMO — Collateralized Mortgage Obligation

FHLB — Federal Home Loan Bank

FHLMC — Federal Home Loan Mortgage Corporation

FICO — Financing Corporation

FNMA — Federal National Mortgage Association

GNMA — Government National Mortgage Association

GO — General Obligation

IO — Interest Only — face amount represents notional amount

LTD — Limited

LLC — Limited Liability Company

L.P. — Limited Partnership

MTN — Medium Term Note

NY — New York

PLC — Public Limited Company

PO — Principal Only

RB — Revenue Bond

REIT — Real Estate Investment Trust

REMIC — Real Estate Mortgage Investment Conduit

Ser — Series

STRIPS — Separately Traded Registered Interest and Principal Securities

TBA — To Be Announced

TIPS — Treasury Inflation Protected Security

Amounts designated as “—” are $O or have been rounded to $O.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Mortgage-Backed Securities	$	—	$	452,446	$	—	$	452,446
Corporate Obligations		—		217,694		—		217,694
Asset-Backed Securities		—		43,572		—		43,572
U.S. Government Agency Obligations		—		22,080		—		22,080
Municipal Bonds		—		4,341		—		4,341
U.S. Treasury Obligations		—		167,739		—		167,739
Cash Equivalent		26,639		—		—		26,639
Affiliated Partnership		—		18,124		—		18,124
Total Investments in Securities	$	26,639	$	925,996	$	—	$	952,635

Other Financial Instruments	Level 1			Level 2			Level 3		Total
Futures Contracts*	$	(100	)	$	—		$	—	$	(100	)
Credit Default Swaps*		—			(1,063	)		—		(1,063	)
Written Options		(88	)		—			—		(88	)
Total Other Financial Instruments	$	(188	)	$	(1,063	)	$	—	$	(1,251	)

* Future and Swap contracts are valued at unrealized depreciation on the instruments.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 113

SCHEDULE OF INVESTMENTS

High Yield Bond Fund

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
CORPORATE OBLIGATIONS — 81.5%
Consumer Discretionary — 19.5%
Adelphia Communications (Escrow Security)
10.250%, 06/15/11 (A)	$	150	$	2
0.000%, 01/15/09 (A)		225		3
Adelphia Communications (Escrow Security), Ser B
0.000%, 02/15/04 (A)		25		—
Affinion Group
11.500%, 10/15/15		420		444
10.125%, 10/15/13		1,050		1,077
Affinion Group Holdings
11.625%, 11/15/15 (B)		520		512
Ameristar Casinos
9.250%, 06/01/14		790		843
Amscan Holdings
8.750%, 05/01/14		3,460		3,538
Applebee’s Enterprises, Ser 2007-1A
6.427%, 12/20/37 (B)		3,845		3,791
Ashtead Capital
9.000%, 08/15/16 (B)		1,665		1,723
Aventi Company (Escrow Security)
0.000%, 10/15/49 (A)		2,750		159
Avis Budget Car Rental
9.625%, 03/15/18		435		460
7.750%, 05/15/16		955		938
Beazer Homes USA
12.000%, 10/15/17		1,260		1,449
9.125%, 06/15/18		450		421
8.125%, 06/15/16		680		627
Belo
8.000%, 11/15/16		2,080		2,223
7.750%, 06/01/27		1,675		1,478
Bon-Ton Department Stores
10.250%, 03/15/14		740		729

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Boyd Gaming
7.750%, 12/15/12	$	1,150	$	1,152
7.125%, 02/01/16		735		615
Buffalo Thunder Development Authority
9.375%, 12/15/14 (A) (B)		2,175		565
Burlington Coat Factory Investment Holdings
14.500%, 10/15/14		3,920		4,185
Burlington Coat Factory Warehouse
11.125%, 04/15/14		1,895		1,980
Cablevision Systems
8.625%, 09/15/17		880		968
8.000%, 04/15/20		472		508
7.750%, 04/15/18		792		838
CCH II
13.500%, 11/30/16		1,708		2,029
CCO Holdings
8.125%, 04/30/20 (B)		953		1,010
7.875%, 04/30/18 (B)		1,890		1,961
7.250%, 10/30/17 (B)		1,110		1,125
Cedar Fair
9.125%, 08/01/18 (B)		3,165		3,323
Cequel Communications Holdings I and Cequel Capital
8.625%, 11/15/17 (B)		2,610		2,754
Charter Communications Operating
10.875%, 09/15/14 (B)		475		538
Choctaw Resort Development Enterprise
7.250%, 11/15/19 (B)		998		689
Chukchansi Economic Development Authority
4.024%, 11/15/12 (B) (C)		1,945		1,118
CKE Restaurants
11.375%, 07/15/18 (B)		5,175		5,304
Clear Channel Communications
10.750%, 08/01/16		575		448
Clear Channel Worldwide Holdings
9.250%, 12/15/17		2,510		2,677
Cleveland Unlimited
13.000%, 12/15/10 (B) (C)		4,304		4,261
Columbus International
11.500%, 11/20/14 (B)		1,295		1,431
Community Health Systems
8.875%, 07/15/15		1,215		1,291
Couche-Tard US
7.500%, 12/15/13		225		228
CSC Holdings
8.625%, 02/15/19		2,200		2,475
Dana (Escrow Security) (A)
7.000%, 03/01/09		350		9
7.000%, 03/01/29		850		21
6.500%, 03/15/08		100		2
6.500%, 03/15/28		200		5

114 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
DCP
10.750%, 08/15/15 (B)	$	2,220	$	2,242
Dex One
12.000%, 01/29/17		489		384
DISH DBS
7.875%, 09/01/19		1,530		1,647
Dollar General
11.875%, 07/15/17		1,505		1,761
Eastman Kodak
9.750%, 03/01/18 (B)		1,730		1,678
7.250%, 11/15/13		1,510		1,450
Easton-Bell Sports
9.750%, 12/01/16		2,240		2,433
Echostar DBS
7.750%, 05/31/15		4,300		4,585
7.125%, 02/01/16		1,640		1,724
El Dorado Casino Shreveport PIK
10.000%, 08/01/12		1,191		1,072
El Pollo Loco
11.750%, 12/01/12		2,000		2,030
Entravision Communications
8.750%, 08/01/17 (B)		855		872
Equinox Holdings
9.500%, 02/01/16 (B)		940		961
Ferrellgas
9.125%, 10/01/17		2,100		2,276
Fontainebleau Las Vegas Holdings
11.000%, 06/15/15 (A) (B)		3,125		—
Ford Motor
7.450%, 07/16/31		1,495		1,559
6.375%, 02/01/29		1,075		994
Games Merger
11.000%, 06/01/18 (B)		4,810		5,195
Goodyear Tire & Rubber
10.500%, 05/15/16		215		244
8.750%, 08/15/20		205		219
8.250%, 08/15/20		1,345		1,416
Gray Television
10.500%, 06/29/15		1,157		1,156
Greektown Superholdings
13.000%, 07/01/15 (B)		2,250		2,422
GWR Operating Partnership LLP
10.875%, 04/01/17 (B)		840		855
Hanesbrands
8.000%, 12/15/16		3,135		3,311
Harrah’s Operating
11.250%, 06/01/17		7,090		7,764
10.000%, 12/15/18		3,633		2,902
Hertz
8.875%, 01/01/14		500		513
7.500%, 10/15/18 (B)		955		955
Hillman Group
10.875%, 06/01/18 (B)		660		696

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
HSN
11.250%, 08/01/16	$	1,475	$	1,681
Inergy
7.000%, 10/01/18 (B)		1,440		1,476
Inergy L.P.
8.750%, 03/01/15		845		912
8.250%, 03/01/16		345		362
inVentiv Health
10.000%, 08/15/18 (B)		1,090		1,083
Isle of Capri Casinos
7.000%, 03/01/14		550		498
Jarden
8.000%, 05/01/16		260		277
7.500%, 05/01/17		1,480		1,532
Lamar Media
7.875%, 04/15/18		2,172		2,281
Landry’s Restaurants
11.625%, 12/01/15 (B)		753		794
11.625%, 12/01/15		1,939		2,046
Laureate Education
11.750%, 08/15/17 (B)		1,100		1,161
10.000%, 08/15/15 (B)		525		535
Lear
8.125%, 03/15/20		758		810
7.875%, 03/15/18		855		906
Levi Strauss
7.625%, 05/15/20		885		918
Libbey Glass
10.000%, 02/15/15 (B)		870		935
Liberty Media LLC
8.250%, 02/01/30		1,970		1,901
Lions Gate Entertainment
10.250%, 11/01/16 (B)		3,890		3,948
M/I Homes
6.875%, 04/01/12		545		544
Marina District Finance
9.875%, 08/15/18 (B)		910		878
9.500%, 10/15/15 (B)		590		572
MCE Finance
10.250%, 05/15/18 (B)		930		1,035
MDC Partners
11.000%, 11/01/16 (B)		3,200		3,424
MGM Mirage
9.000%, 03/15/20 (B)		4,015		4,226
7.500%, 06/01/16		1,950		1,648
6.875%, 04/01/16		1,870		1,571
5.875%, 02/27/14		1,485		1,270
MGM Resorts International
11.375%, 03/01/18		4,920		4,686
11.125%, 11/15/17		1,990		2,266
10.375%, 05/15/14		260		289
Michaels Stores
13.000%, 11/01/11 (D)		365		351

SEI Institutional Managed Trust / Annual Report / September 30, 2010 115

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Millennium (Escrow Security)
7.625%, 11/15/26 (A)	$	175	$	—
Mohegan Tribal Gaming Authority
7.125%, 08/15/14		765		448
6.875%, 02/15/15		265		146
MTR Gaming Group
12.625%, 07/15/14		2,215		2,248
NCL
11.750%, 11/15/16		1,075		1,204
Neiman-Marcus Group PIK
9.000%, 10/15/15		1,396		1,451
Nexstar Broadcasting
8.875%, 04/15/17 (B)		1,875		1,955
Nielsen Finance
11.500%, 05/01/16		265		301
7.750%, 10/15/18 (B)		3,295		3,271
Norcraft
10.500%, 12/15/15		550		575
Norcraft Holdings
9.750%, 09/01/12		821		770
OSI Restaurant Partners
10.000%, 06/15/15		3,185		3,233
Peninsula Gaming
10.750%, 08/15/17		1,535		1,621
8.375%, 08/15/15		2,100		2,184
Penn National Gaming
6.750%, 03/01/15		3,000		3,000
Phillips-Van Heusen
7.375%, 05/15/20		2,890		3,045
Pinnacle Entertainment
8.750%, 05/15/20		3,700		3,645
Quebecor Media
7.750%, 03/15/16		210		217
7.750%, 03/15/16		2,235		2,305
Quebecor Media (Escrow Security)
0.000%, 11/15/13 (A) (E)		1,725		—
0.000%, 03/15/16 (F)		1,915		115
Quiksilver
6.875%, 04/15/15		1,610		1,526
QVC
7.500%, 10/01/19 (B)		2,755		2,879
7.375%, 10/15/20 (B)		415		430
Regal Entertainment Group
9.125%, 08/15/18		1,660		1,741
Rental Services
9.500%, 12/01/14		1,335		1,383
Reynolds Group Issuer
8.500%, 05/15/18 (B)		2,240		2,190
7.750%, 10/15/16 (B)		4,825		4,909
River Rock Entertainment Authority
9.750%, 11/01/11		4,515		4,075
RJ Tower
12.000%, 06/01/13 (A)		172		1

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Roadhouse Financing
10.750%, 10/15/17 (B)	$	2,245	$	2,301
Royal Caribbean Cruises
7.000%, 06/15/13		400		420
RSC Equipment Rental
10.000%, 07/15/17 (B)		2,248		2,501
Salem Communications
9.625%, 12/15/16		994		1,056
Sally Holdings LLC
9.250%, 11/15/14		1,360		1,431
San Pasqual Casino
8.000%, 09/15/13 (B)		1,670		1,639
Sbarro
10.375%, 02/01/15		674		404
Sealy Mattress
8.250%, 06/15/14		2,776		2,797
Sears Holdings
6.625%, 10/15/18 (B)		825		825
Service International
7.000%, 06/15/17		775		819
6.750%, 04/01/15		245		255
Shingle Springs Tribal Gaming Authority
9.375%, 06/15/15 (B)		1,520		1,132
Simmons Bedding
11.250%, 07/15/15 (B)		3,260		3,500
Sinclair Television Group
9.250%, 11/01/17 (B)		725		778
8.375%, 10/15/18 (B)		1,410		1,421
Sirius XM Radio
9.750%, 09/01/15 (B)		2,105		2,318
8.750%, 04/01/15 (B)		1,750		1,859
Sitel
11.500%, 04/01/18 (B)		1,020		816
Speedway Motorsports
8.750%, 06/01/16		1,470		1,588
Stanadyne Holdings
12.000%, 02/15/15		1,575		1,299
Stanadyne Holdings, Ser 1
10.000%, 08/15/14		750		709
Standard Pacific
10.750%, 09/15/16		1,955		2,131
8.375%, 05/15/18		377		377
Steinway Musical Instruments
7.000%, 03/01/14 (B)		1,990		1,995
Stoneridge
9.500%, 10/15/17 (B)		930		953
TL Acquisitions
10.500%, 01/15/15 (B)		1,280		1,272
Travelport LLC
11.875%, 09/01/16		4,030		4,312
4.877%, 09/01/14 (C)		856		796
TRW Automotive
7.250%, 03/15/17 (B)		745		792

116 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Turning Stone Resort Casino Enterprise
9.125%, 09/15/14 (B)	$	4,500	$	4,562
United Components
9.375%, 06/15/13		870		885
United Rentals North America
10.875%, 06/15/16		2,600		2,935
9.250%, 12/15/19		750		812
Univision Communications
9.750%, 03/15/15 (B)		2,489		2,383
UPC Holding
9.875%, 04/15/18 (B)		4,060		4,324
Vail Resorts
6.750%, 02/15/14		1,340		1,368
Videotron
9.125%, 04/15/18		800		900
6.875%, 01/15/14		900		913
Visant
10.000%, 10/01/17 (B)		1,975		2,064
WMG Acquisition
9.500%, 06/15/16		2,460		2,632
Wynn Las Vegas
7.875%, 11/01/17		110		118
7.875%, 05/01/20		190		202
7.750%, 08/15/20 (B)		4,410		4,653
XM Satellite Radio
13.000%, 08/01/13 (B)		4,230		4,864
				293,038
Consumer Staples — 2.8%
Alliance One International
10.000%, 07/15/16		780		844
B&G Foods
7.625%, 01/15/18		310		323
Beverages & More
9.625%, 10/01/14 (B)		3,900		3,900
Bumble Bee Foods
7.750%, 12/15/15		581		622
C&S Group Enterprises
8.375%, 05/01/17 (B)		1,145		1,118
Central Garden and Pet
8.250%, 03/01/18		840		858
Chiquita Brands International
8.875%, 12/01/15		1,435		1,478
Constellation Brands
8.375%, 12/15/14		200		221
7.250%, 09/01/16		865		920
7.250%, 05/15/17		1,000		1,066
Cott Beverages
8.375%, 11/15/17 (B)		2,165		2,295
Cott Beverages USA
8.125%, 09/01/18 (B)		1,240		1,313
Dean Foods
7.000%, 06/01/16		610		599

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
6.900%, 10/15/17	$	120	$	113
Diversey
8.250%, 11/15/19		1,075		1,150
Diversey Holdings
10.500%, 05/15/20		1,794		2,054
Dole Food
13.875%, 03/15/14		386		471
8.000%, 10/01/16 (B)		205		214
Fleming
0.000%, 04/01/08 (A)		1,053		—
Michael Foods
9.750%, 07/15/18 (B)		280		300
NBTY
9.000%, 10/01/18 (B)		2,130		2,236
Rite Aid
10.375%, 07/15/16		2,640		2,749
10.250%, 10/15/19		305		317
9.750%, 06/12/16		1,890		2,020
9.500%, 06/15/17		3,725		3,129
9.375%, 12/15/15		500		431
8.000%, 08/15/20 (B)		2,935		2,979
7.500%, 03/01/17		790		728
Smithfield Foods
7.750%, 07/01/17		739		749
Spectrum Brands Holdings
12.000%, 08/28/19		1,787		1,988
9.500%, 06/15/18 (B)		505		542
SuperValu
8.000%, 05/01/16		2,215		2,232
Tops Markets
10.125%, 10/15/15 (B)		930		998
Viskase
9.875%, 01/15/18 (B)		1,150		1,173
				42,130
Energy — 7.7%
American Petroleum Tankers
10.250%, 05/01/15 (B)		970		992
Anadarko Petroleum
6.450%, 09/15/36		845		846
6.375%, 09/15/17		765		843
Antero Resources Finance
9.375%, 12/01/17		645		685
Aquilex Holdings
11.125%, 12/15/16		2,560		2,534
Arch Coal
8.750%, 08/01/16		1,975		2,177
7.250%, 10/01/20		65		69
Atlas Energy Operating
12.125%, 08/01/17		120		139
10.750%, 02/01/18		1,705		1,888
Aventine Renewable Energy Holdings
13.000%, 03/15/15 (B) (F) (G)		986		1,035

SEI Institutional Managed Trust / Annual Report / September 30, 2010 117

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Basic Energy Services
11.625%, 08/01/14	$	1,100	$	1,210
Brigham Exploration
8.750%, 10/01/18 (B)		685		706
Bristow Group
7.500%, 09/15/17		1,680		1,722
Chaparral Energy
9.875%, 10/01/20 (B)		695		705
Chesapeake Energy
6.875%, 08/15/18		3,090		3,237
6.625%, 08/15/20		225		235
6.500%, 08/15/17		950		986
Cloud Peak Energy Resources
8.250%, 12/15/17		920		972
Compton Petroleum Finance
7.625%, 12/01/13		375		326
Consol Energy
8.250%, 04/01/20 (B)		1,450		1,584
8.000%, 04/01/17 (B)		1,550		1,678
Continental Resources
7.375%, 10/01/20 (B)		2,200		2,321
Copano Energy
7.750%, 06/01/18		3,560		3,596
Crosstex Energy
8.875%, 02/15/18		1,845		1,933
Denbury Resources
9.750%, 03/01/16		785		881
Drummond
9.000%, 10/15/14 (B)		810		856
Dynegy Holdings
7.750%, 06/01/19		2,105		1,442
7.625%, 10/15/26		1,115		672
El Paso
8.250%, 02/15/16		585		651
7.420%, 02/15/37		950		906
7.250%, 06/01/18		2,240		2,414
Energy Transfer Equity
7.500%, 10/15/20		2,993		3,150
EXCO Resources
7.500%, 09/15/18		500		497
Forbes Energy Services
11.000%, 02/15/15		1,662		1,512
Forest Oil
8.500%, 02/15/14		315		344
8.000%, 12/15/11		585		619
7.250%, 06/15/19		2,825		2,889
General Maritime
12.000%, 11/15/17		770		812
Global Geophysical Services
10.500%, 05/01/17 (B)		480		488
Helix Energy Solutions Group
9.500%, 01/15/16 (B)		2,845		2,881
Hercules Offshore
10.500%, 10/15/17 (B)		905		751

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Hilcorp Energy I
8.000%, 02/15/20 (B)	$	765	$	786
Holly
9.875%, 06/15/17		1,500		1,588
International Coal Group
9.125%, 04/01/18		995		1,060
Kerr-McGee
6.950%, 07/01/24		390		425
Key Energy Services
8.375%, 12/01/14		820		865
Linn Energy
11.750%, 05/15/17		230		264
8.625%, 04/15/20 (B)		1,960		2,078
7.750%, 02/01/21 (B)		870		878
MarkWest Energy Partners
8.750%, 04/15/18		1,005		1,085
Murray Energy
10.250%, 10/15/15 (B)		980		1,017
Newfield Exploration
7.125%, 05/15/18		3,040		3,245
6.875%, 02/01/20		1,850		1,966
NFR Energy
9.750%, 02/15/17 (B)		1,745		1,745
OPTI Canada
9.750%, 08/15/13 (B)		340		345
9.000%, 12/15/12 (B)		350		354
8.250%, 12/15/14		3,105		2,360
7.875%, 12/15/14		1,420		1,069
Parker Drilling
9.125%, 04/01/18 (B)		2,615		2,654
Penn Virginia
10.375%, 06/15/16		400		438
PetroHawk Energy
10.500%, 08/01/14		1,800		2,038
7.875%, 06/01/15		2,165		2,268
7.250%, 08/15/18 (B)		1,945		1,984
Petroleum Development
12.000%, 02/15/18		2,000		2,220
Pioneer Drilling
9.875%, 03/15/18 (B)		515		527
Plains Exploration & Production
10.000%, 03/01/16		85		97
7.750%, 06/15/15		290		304
7.625%, 06/01/18		550		577
7.625%, 04/01/20		325		341
7.000%, 03/15/17		1,250		1,281
Pride International
8.500%, 06/15/19		575		667
6.875%, 08/15/20		1,060		1,154
Quicksilver Resources
11.750%, 01/01/16		2,500		2,931
7.125%, 04/01/16		2,660		2,627
RAAM Global Energy
12.500%, 10/01/15 (B)		1,120		1,110

118 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
SandRidge Energy
9.875%, 05/15/16 (B)	$	1,185	$	1,224
8.750%, 01/15/20 (B)		3,000		2,970
8.625%, 04/01/15		2,280		2,280
Southwestern Energy
7.500%, 02/01/18		900		1,017
Targa Resources Partners
11.250%, 07/15/17		3,000		3,465
7.875%, 10/15/18 (B)		1,845		1,923
Tesoro
9.750%, 06/01/19		1,950		2,145
Thermon Industries
9.500%, 05/01/17 (B)		1,600		1,672
Whiting Petroleum
6.500%, 10/01/18		275		281
				115,509
Financials — 12.7%
Alliant Holdings I
11.000%, 05/01/15 (B)		2,900		2,994
Ally Financial
8.000%, 12/31/18		1,065		1,094
8.000%, 11/01/31		4,190		4,494
7.500%, 09/15/20 (B)		1,715		1,827
6.750%, 12/01/14		4,828		5,030
American Capital
8.960%, 12/31/13 (B)		966		970
American General Finance MTN
5.400%, 12/01/15		2,450		1,972
American International Group
8.175%, 05/15/58 (C)		1,685		1,685
Bank of America
8.000%, 12/29/49 (C)		580		599
Bankrate
11.750%, 07/15/15 (B)		1,700		1,819
Calfrac Holdings
7.750%, 02/15/15 (B)		2,850		2,879
Cardtronics
8.250%, 09/01/18		4,490		4,726
Cemex Finance
9.500%, 12/14/16 (B)		5,045		5,076
CEVA Group
11.625%, 10/01/16 (B)		2,925		3,086
11.500%, 04/01/18 (B)		2,500		2,613
CIT Group
7.000%, 05/01/13		181		181
7.000%, 05/01/14		595		594
7.000%, 05/01/15		1,115		1,107
7.000%, 05/01/16		5,977		5,887
7.000%, 05/01/17		2,764		2,705
Citigroup Capital XXI
8.300%, 12/21/57 (C)		580		609
City National Bank
9.000%, 08/12/19		3,384		3,384

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
City National Capital Trust I
9.625%, 02/01/40	$	1,600	$	1,662
Credit Acceptance
9.125%, 02/01/17 (B)		2,400		2,520
E*Trade Financial
7.375%, 09/15/13		3,669		3,586
E*Trade Financial PIK
12.500%, 11/30/17		1,726		1,968
Felcor Lodging
10.000%, 10/01/14‡		740		804
Fifth Third Capital Trust IV
6.500%, 04/15/37 (C)		960		916
FireKeepers Development Authority
13.875%, 05/01/15 (B)		3,450		4,019
Ford Motor Credit
7.000%, 04/15/15		1,695		1,811
6.625%, 08/15/17		1,565		1,667
5.625%, 09/15/15		375		386
Ford Motor Credit LLC
12.000%, 05/15/15		1,280		1,612
8.700%, 10/01/14		1,245		1,397
8.000%, 06/01/14		1,900		2,078
8.000%, 12/15/16		2,050		2,317
7.000%, 10/01/13		550		590
Fresenius US Finance II
9.000%, 07/15/15 (B)		300		342
Genworth Financial
6.500%, 06/15/34		1,090		1,010
6.150%, 11/15/66 (C)		5,355		4,063
HBOS Capital Funding
6.071%, 06/30/49 (B) (C)		1,435		1,263
Hellas Telecommunications II
6.881%, 01/15/15 (A) (B) (C)		2,250		45
Hexion US Finance
9.750%, 11/15/14		1,621		1,686
4.750%, 11/15/14 (C)		500		440
Host Marriott LP, Ser O
6.375%, 03/15/15‡		240		246
Host Marriott LP, Ser Q
6.750%, 06/01/16‡		1,115		1,155
HUB International Holdings
10.250%, 06/15/15 (B)		360		349
9.000%, 12/15/14 (B)		1,440		1,422
Icahn Enterprises
8.000%, 01/15/18		2,675		2,688
7.750%, 01/15/16		4,540		4,563
ILFC E-Capital Trust II
6.250%, 12/21/65 (B) (C)		2,040		1,377
Interactive Data
10.250%, 08/01/18 (B)		1,015		1,076
International Lease Finance
8.750%, 03/15/17 (B)		2,480		2,660
8.625%, 09/15/15 (B)		2,360		2,525
7.125%, 09/01/18 (B)		2,120		2,284

SEI Institutional Managed Trust / Annual Report / September 30, 2010 119

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
6.750%, 09/01/16 (B)	$	320	$	342
6.375%, 03/25/13		800		804
5.650%, 06/01/14		595		577
Ironshore Holdings US
8.500%, 05/15/20 (B)		4,600		4,660
Liberty Mutual Group
7.000%, 03/15/37 (B) (C)		1,275		1,108
Lloyds Banking Group
6.267%, 11/14/16 (B)		335		238
5.920%, 09/29/49 (B) (C)		505		359
Lyondell Chemical
8.000%, 11/01/17 (B)		6,085		6,648
Marlin Water Trust II
6.310%, 07/15/03 (A) (B)		4,200		—
MetLife Capital Trust X
9.250%, 04/08/38 (B) (C)		3,550		4,189
National Life Insurance
10.500%, 09/15/39 (B)		990		1,203
NCO Group
11.875%, 11/15/14		800		716
Nielsen Finance
0.000%, 08/01/16 (D)		5,476		5,483
Novelis
7.250%, 02/15/15		1,465		1,491
NSG Holdings
7.750%, 12/15/25 (B)		3,000		2,730
Nuveen Investments
10.500%, 11/15/15		10,690		10,623
5.500%, 09/15/15		1,055		836
Offshore Group Investments
11.500%, 08/01/15 (B)		2,055		2,158
Ohio Casualty
7.300%, 06/15/14		905		1,000
Omega Healthcare Investors
7.500%, 02/15/20‡(B)		3,495		3,665
Penson Worldwide
12.500%, 05/15/17 (B)		1,125		1,122
PHH
9.250%, 03/01/16 (B)		980		1,019
Pinafore
9.000%, 10/01/18 (B)		1,650		1,733
Pinnacle Foods Finance
10.625%, 04/01/17		1,660		1,766
9.250%, 04/01/15		165		172
9.250%, 04/01/15 (B)		310		322
8.250%, 09/01/17 (B)		1,100		1,114
PNC Preferred Funding Trust II
6.113%, 03/29/49 (B) (C)		2,170		1,585
Protective Life
8.450%, 10/15/39		2,800		3,070
Radnet Management
10.375%, 04/01/18 (B)		1,065		974
Realogy
10.500%, 04/15/14		1,070		910

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Regions Financing Trust II
6.625%, 05/15/47 (C)	$	469	$	413
Snoqualmie Entertainment Authority
9.125%, 02/01/15 (B)		2,090		1,839
4.136%, 02/01/14 (B) (C)		645		532
Susquehanna Capital II
11.000%, 03/23/40		1,300		1,347
Symetra Financial
6.125%, 04/01/16 (B)		635		657
Unitrin
6.000%, 05/15/17		1,025		1,056
USI Holdings
9.750%, 05/15/15 (B)		3,619		3,510
Ventas Realty L.P.
6.750%, 04/01/17‡		850		884
Wind Acquisition Holdings Finance
12.250%, 07/15/17 (B)		964		1,033
XL Capital
6.500%, 12/31/49 (C)		3,320		2,739
Yankee Acquisition, Ser B
9.750%, 02/15/17		1,830		1,903
8.500%, 02/15/15		1,370		1,415
Zions Bancorporation
5.650%, 05/15/14		200		198
				192,001
Health Care — 7.7%
Accellent
10.500%, 12/01/13		820		828
8.375%, 02/01/17		1,700		1,734
Alere
9.000%, 05/15/16		3,630		3,739
American Renal Holdings
8.375%, 05/15/18 (B)		1,620		1,669
Apria Healthcare Group
12.375%, 11/01/14		5,680		6,319
Bausch & Lomb
9.875%, 11/01/15		1,560		1,659
Biomet
11.625%, 10/15/17		7,120		7,930
10.375%, 10/15/17		5,130		5,694
10.000%, 10/15/17		2,735		3,019
BioScrip
10.250%, 10/01/15		4,390		4,489
Catalent Pharma Solutions
9.500%, 04/15/15		6,060		6,120
Cooper
7.125%, 02/15/15		250		254
DJO Finance
10.875%, 11/15/14		2,720		2,958
HCA
9.875%, 02/15/17		160		177
9.625%, 11/15/16		7,306		7,927
9.250%, 11/15/16		4,720		5,121
8.500%, 04/15/19		2,160		2,408

120 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Health Management Associates
6.125%, 04/15/16	$	1,055	$	1,066
Healthsouth
8.125%, 02/15/20		2,870		2,985
7.750%, 09/15/22		1,155		1,164
7.250%, 10/01/18		510		520
Lantheus Medical Imaging
9.750%, 05/15/17 (B)		3,380		3,481
Multiplan
9.875%, 09/01/18 (B)		1,050		1,097
Mylan
7.875%, 07/15/20 (B)		1,785		1,912
7.625%, 07/15/17 (B)		3,130		3,330
Novasep Holding SAS
9.750%, 12/15/16 (B)		780		601
Omnicare
6.125%, 06/01/13		350		350
PharmaNet Development Group
10.875%, 04/15/17 (B)		2,490		2,571
Radiation Therapy Services
9.875%, 04/15/17 (B)		1,600		1,580
ReAble Therapeutics Finance
11.750%, 11/15/14		2,817		2,951
Select Medical
7.625%, 02/01/15		4,435		4,330
Surgical Care Affiliates
8.875%, 07/15/15 (B)		1,254		1,273
Talecris Biotherapeutics Holdings
7.750%, 11/15/16		1,435		1,578
Tenet Healthcare
10.000%, 05/01/18		95		108
9.250%, 02/01/15		1,630		1,750
8.875%, 07/01/19		370		408
UHS Escrow
7.000%, 10/01/18 (B)		2,850		2,943
United Surgical Partners International PIK
9.250%, 05/01/17		1,390		1,432
Universal Hospital Services
8.500%, 06/01/15		225		226
US Oncology
9.125%, 08/15/17		1,525		1,617
US Oncology Holdings
6.904%, 03/15/12 (C)		1,185		1,123
Valeant Pharmaceuticals International
7.000%, 10/01/20 (B)		3,177		3,248
6.750%, 10/01/17 (B)		1,072		1,093
Vanguard Health Holding II
8.000%, 02/01/18		2,640		2,680
VWR Funding PIK
10.250%, 07/15/15		5,555		5,763
Warner Chilcott
7.750%, 09/15/18 (B)		855		879
				116,104

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Industrials — 10.0%
ACCO Brands
10.625%, 03/15/15	$	2,650	$	2,961
7.625%, 08/15/15		945		907
Accuride
9.500%, 08/01/18 (B)		3,300		3,465
Actuant
6.875%, 06/15/17		2,000		2,040
Aircastle
9.750%, 08/01/18 (B)		535		546
Aleris International
0.000%, 12/15/16 (A)		1,800		1
Aleris International PIK
4.414%, 12/15/14 (A)		725		2
Alion Science & Technology
12.000%, 11/01/14		2,606		2,593
Alliant Techsystems
6.875%, 09/15/20		575		584
6.750%, 04/01/16		3,440		3,586
Allison Transmission
11.000%, 11/01/15 (B)		900		976
America West Airlines 2000-1 Pass Through Trust
8.057%, 07/02/20		2,195		2,293
American Airlines
13.000%, 08/01/16		2,064		2,441
American Axle & Manufacturing
7.875%, 03/01/17		1,020		1,011
American Tire Distributors
9.750%, 06/01/17 (B)		515		548
Amsted Industries
8.125%, 03/15/18 (B)		775		807
ArvinMeritor
10.625%, 03/15/18		445		493
8.125%, 09/15/15		675		683
Associated Materials
11.250%, 03/01/14		925		967
9.875%, 11/15/16		415		502
Atrium PIK
15.000%, 12/15/12 (A) (B)		1,625		24
Baker & Taylor
11.500%, 07/01/13 (B)		950		685
Baldor Electric
8.625%, 02/15/17		390		417
BE Aerospace
6.875%, 10/01/20		2,385		2,433
Belden
9.250%, 06/15/19 (B)		610		659
Building Materials Corp of America
6.875%, 08/15/18 (B)		2,693		2,646
Case New Holland
7.875%, 12/01/17 (B)		1,470		1,597
7.750%, 09/01/13		360		391

SEI Institutional Managed Trust / Annual Report / September 30, 2010 121

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Casella Waste Systems
11.000%, 07/15/14	$	170	$	186
9.750%, 02/01/13		1,185		1,194
Cemex Espana Luxembourg
9.250%, 05/12/20 (B)		174		163
Chart Industries
9.125%, 10/15/15		1,600		1,630
Clean Harbors
7.625%, 08/15/16		482		501
Coleman Cable
9.000%, 02/15/18		4,965		5,076
Complete Production Services
8.000%, 12/15/16		350		361
Continental Airlines
7.339%, 04/19/14		1,682		1,748
Continental Airlines 2000-1 Class B Pass Through Trust
8.388%, 11/01/20		1,043		1,048
Corrections Corp of America
7.750%, 06/01/17		475		511
CPM Holdings
10.625%, 09/01/14 (B)		655		706
DAE Aviation Holdings
11.250%, 08/01/15 (B)		875		882
Delta Air Lines
12.250%, 03/15/15 (B)		4,200		4,641
DynCorp International
10.375%, 07/01/17 (B)		6,910		6,875
Esco
8.625%, 12/15/13 (B)		95		97
4.129%, 12/15/13 (B) (C)		635		581
Esterline Technologies
7.000%, 08/01/20 (B)		1,300		1,346
Express
8.750%, 03/01/18		700		738
FTI Consulting
6.750%, 10/01/20 (B)		515		519
General Cable
7.125%, 04/01/17		1,050		1,066
Geo Group
7.750%, 10/15/17 (B)		980		1,029
Global Aviation Holdings
14.000%, 08/15/13 (B)		2,750		2,943
Goodman Global Group
0.000%, 12/15/14 (H)		4,400		2,816
Harland Clarke Holdings
9.500%, 05/15/15		3,530		3,345
6.000%, 05/15/15 (C)		865		727
Intcomex
13.250%, 12/15/14 (B)		4,780		5,043
Interface
11.375%, 11/01/13		400		454
9.500%, 02/01/14		131		136

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Interline Brands
8.125%, 06/15/14	$	570	$	589
International Wire Group
9.750%, 04/15/15 (B)		975		996
Iron Mountain
8.375%, 08/15/21		1,070		1,157
K Hovnanian Enterprises
7.500%, 05/15/16		580		383
6.250%, 01/15/15		780		585
Kansas City Southern de Mexico
8.000%, 02/01/18 (B)		750		806
Koppers
7.875%, 12/01/19		1,620		1,689
Kratos Defense & Security Solutions
10.000%, 06/01/17		1,250		1,325
Manitowoc
9.500%, 02/15/18		1,650		1,724
McJunkin Red Man
9.500%, 12/15/16 (B)		380		334
Mueller Water Products
8.750%, 09/01/20 (B)		390		410
Neehah Foundry
15.000%, 07/29/15		89		84
Niska Gas Storage US
8.875%, 03/15/18 (B)		1,085		1,161
Oshkosh
8.500%, 03/01/20		1,000		1,082
8.250%, 03/01/17		1,090		1,172
Ply Gem Industries
13.125%, 07/15/14		1,120		1,141
Quality Distribution
11.750%, 11/01/13		843		797
RailAmerica
9.250%, 07/01/17		740		811
RBS Global
8.500%, 05/01/18		1,925		1,956
RBS Global and Rexnord
11.750%, 08/01/16		860		920
Sabine Pass LNG L.P.
7.500%, 11/30/16		4,560		4,161
7.500%, 11/30/16 (B)		680		620
Sequa
13.500%, 12/01/15 (B)		500		535
11.750%, 12/01/15 (B)		3,175		3,350
ServiceMaster
10.750%, 07/15/15 (B)		4,570		4,867
7.450%, 08/15/27		1,500		1,140
7.250%, 03/01/38		1,515		1,087
7.100%, 03/01/18		655		563
Spirit Aerosystems
7.500%, 10/01/17		745		769
SPX
7.625%, 12/15/14		1,190		1,297

122 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Susser Holdings
8.500%, 05/15/16	$	990	$	1,030
Swift Transportation
12.500%, 05/15/17 (B)		495		498
syncreon Global Ireland
9.500%, 05/01/18 (B)		1,937		1,901
Terex
10.875%, 06/01/16		950		1,084
8.000%, 11/15/17		3,185		3,189
Thermadyne Holdings
9.500%, 02/01/14		860		873
Ticketmaster Entertainment
10.750%, 08/01/16		4,890		5,355
Titan International
7.875%, 10/01/17 (B)		2,870		2,899
Trimas
9.750%, 12/15/17 (B)		780		839
Triumph Group
8.625%, 07/15/18		310		333
8.000%, 11/15/17		200		205
UAL 2007-1 Pass Through Trust
6.636%, 07/02/22		348		347
UAL 2009-2B Pass Through Trust
12.000%, 01/15/16 (B)		233		252
UAL Pass Through Trust Series 2000-1
8.030%, 07/01/11		563		691
UCI Holdings
8.257%, 12/15/13 (C)		1,204		1,168
United Air Lines
12.000%, 11/01/13 (B)		1,290		1,425
9.125%, 01/15/12 (A)		1,075		—
United Air Lines, Ser 95A1
9.560%, 10/19/18 (A)		552		226
9.020%, 04/19/12 (A)		351		140
United Air Lines, Ser A
0.000%, 05/01/04 (A)		525		—
United Maritime Group
11.750%, 06/15/15		4,200		4,211
USG
9.750%, 08/01/14 (B)		225		235
6.300%, 11/15/16		1,485		1,288
Wyle Services
10.500%, 04/01/18 (B)		1,745		1,728
				150,048
Information Technology — 5.9%
Activant Solutions
9.500%, 05/01/16		1,645		1,581
Aeroflex
11.750%, 02/15/15		1,465		1,582
Amkor Technology
9.250%, 06/01/16		1,725		1,850
7.375%, 05/01/18 (B)		1,240		1,256

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Aspect Software
10.625%, 05/15/17 (B)	$	2,035	$	2,114
Avaya
10.125%, 11/01/15		728		689
9.750%, 11/01/15		665		627
Brocade Communications Systems
6.875%, 01/15/20 (B)		440		462
6.625%, 01/15/18 (B)		440		458
Compucom Systems
12.500%, 10/01/15 (B)		3,775		4,058
Equinix
8.125%, 03/01/18		2,900		3,096
Fidelity National Information Services
7.875%, 07/15/20 (B)		710		765
7.625%, 07/15/17 (B)		1,230		1,313
First Data
10.550%, 09/24/15		5,955		4,816
9.875%, 09/24/15		5,465		4,453
8.875%, 08/15/20 (B)		830		861
Freescale Semiconductor
10.125%, 03/15/18 (B)		535		570
10.125%, 12/15/16		810		737
9.250%, 04/15/18 (B)		5,600		5,824
GXS Worldwide
9.750%, 06/15/15		10,150		10,112
Iron Mountain
8.750%, 07/15/18		1,020		1,082
JDA Software Group
8.000%, 12/15/14 (B)		915		970
MagnaChip Semiconductor
10.500%, 04/15/18 (B)		3,155		3,336
NXP BV
9.750%, 08/01/18 (B)		2,135		2,274
NXP Funding LLC
10.000%, 07/15/13 (B)		489		533
9.500%, 10/15/15		2,235		2,291
7.875%, 10/15/14		1,112		1,151
Open Solutions
9.750%, 02/01/15 (B)		4,200		2,961
Sabre Holdings
8.350%, 03/15/16		1,675		1,708
Smart Modular Technologies
5.790%, 04/01/12 (C)		670		670
SSI Investments II
11.125%, 06/01/18 (B)		755		829
STATS ChipPAC
7.500%, 08/12/15 (B)		2,375		2,559
Stratus Technologies
12.000%, 03/29/15 (B)		2,300		1,958
Sungard Data Systems
10.250%, 08/15/15		4,943		5,202
9.125%, 08/15/13		2,899		2,961
Terremark Worldwide
12.000%, 06/15/17		675		771

SEI Institutional Managed Trust / Annual Report / September 30, 2010 123

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Travelport
9.000%, 03/01/16 (B)	$	1,885	$	1,876
Unisys
14.250%, 09/15/15 (B)		1,540		1,833
12.750%, 10/15/14 (B)		4,585		5,456
Viasat
8.875%, 09/15/16		565		608
Zayo Group
10.250%, 03/15/17 (B)		975		1,024
				89,277
Materials — 6.8%
AK Steel
7.625%, 05/15/20		1,283		1,299
Algoma Acquisition
9.875%, 06/15/15 (B)		1,255		1,119
Appleton Papers
10.500%, 06/15/15 (B)		940		881
Ashland
9.125%, 06/01/17		2,265		2,593
Berry Plastics
10.250%, 03/01/16		2,200		2,046
9.500%, 05/15/18		1,251		1,176
Boise Paper Holdings
9.000%, 11/01/17		2,270		2,435
BWAY Holding
10.000%, 06/15/18 (B)		755		817
Cascades
7.875%, 01/15/20		1,320		1,376
Celanese US Holdings
6.625%, 10/15/18 (B)		550		562
Century Aluminum
8.000%, 05/15/14		889		878
CF Industries
7.125%, 05/01/20		780		853
6.875%, 05/01/18		4,825		5,193
Chemtura
7.875%, 09/01/18 (B)		1,305		1,364
Clearwater Paper
10.625%, 06/15/16		790		889
CPG International I
10.500%, 07/01/13		1,865		1,884
Domtar
10.750%, 06/01/17		2,700		3,362
9.500%, 08/01/16		275		319
Essar Steel Algoma
9.375%, 03/15/15 (B)		115		116
Ferro
7.875%, 08/15/18		800		830
FMG Finance Property Ltd.
10.625%, 09/01/16 (B)		3,180		3,915
Georgia-Pacific LLC
8.250%, 05/01/16 (B)		1,665		1,850
8.000%, 01/15/24		1,690		1,897

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
7.125%, 01/15/17 (B)	$	4,730	$	5,008
7.000%, 01/15/15 (B)		1,155		1,201
Graham Packaging
9.875%, 10/15/14		1,950		2,023
8.250%, 01/01/17 (B)		95		97
8.250%, 10/01/18 (B)		2,050		2,083
Graphic Packaging International
9.500%, 06/15/17		1,265		1,347
7.875%, 10/01/18		1,675		1,721
Headwaters
11.375%, 11/01/14		835		889
Hexion US Finance
8.875%, 02/01/18		1,725		1,691
Huntsman International
8.625%, 03/15/20		1,905		1,972
8.625%, 03/15/21 (B)		675		699
7.875%, 11/15/14		1,690		1,753
7.375%, 01/01/15		560		568
5.500%, 06/30/16		485		464
Ineos Finance
9.000%, 05/15/15 (B)		2,840		2,964
Intertape Polymer
8.500%, 08/01/14		710		605
Lyondell Chemical
11.000%, 05/01/18		3,011		3,331
MacDermid
9.500%, 04/15/17 (B)		1,320		1,380
Millar Western Forest Products
7.750%, 11/15/13		1,040		928
Momentive Performance Materials
11.500%, 12/01/16		685		685
NewPage
11.375%, 12/31/14		1,755		1,588
Noranda Aluminium Acquisition PIK
4.524%, 05/15/15 (C)		2,559		2,152
Nova Chemicals
8.625%, 11/01/19		420		446
Packaging Dynamics Finance
10.000%, 05/01/16 (B)		1,020		964
PE Paper Escrow GmbH
12.000%, 08/01/14 (B)		520		601
PH Glatfelter
7.125%, 05/01/16		1,155		1,179
Plastipak Holdings
10.625%, 08/15/19 (B)		590		655
PolyOne
7.375%, 09/15/20		1,375		1,418
Pregis
12.375%, 10/15/13		1,421		1,428
Reichhold Industries
9.000%, 08/15/14 (B)		1,969		1,698
Rhodia
6.875%, 09/15/20 (B)		1,970		2,009
Ryerson
12.000%, 11/01/15		1,215		1,258

124 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Scotts Miracle-Gro
7.250%, 01/15/18	$	295	$	311
Sealed Air
7.875%, 06/15/17		1,120		1,214
Solo Cup
10.500%, 11/01/13		715		740
8.500%, 02/15/14		1,000		860
Solutia
8.750%, 11/01/17		1,150		1,256
7.875%, 03/15/20		865		925
Standard Steel
12.000%, 05/01/15 (B)		2,650		2,531
Steel Dynamics
7.750%, 04/15/16		800		832
7.625%, 03/15/20 (B)		785		814
Teck Resources
10.250%, 05/15/16		63		77
TPC Group
8.250%, 10/01/17 (B)		490		502
United States Steel
7.375%, 04/01/20		500		521
Verso Paper Holdings
11.500%, 07/01/14		1,280		1,402
11.375%, 08/01/16		960		863
9.125%, 08/01/14		1,335		1,338
Vertellus Specialties
9.375%, 10/01/15 (B)		3,235		3,356
				102,001
Telecommunication Services — 6.4%
Angel Lux Common
8.875%, 05/01/16 (B)		1,335		1,418
Citizens Communications
6.625%, 03/15/15		980		1,012
Clearwire Communications
12.000%, 12/01/15 (B)		10,050		10,839
Cricket Communications
10.000%, 07/15/15		450		486
9.375%, 11/01/14		950		983
Crown Castle International
9.000%, 01/15/15		2,505		2,762
Digicel
12.000%, 04/01/14 (B)		500		582
Digicel Group
10.500%, 04/15/18 (B)		1,045		1,147
8.875%, 01/15/15 (B)		455		464
8.250%, 09/01/17 (B)		1,010		1,060
GCI
8.625%, 11/15/19		1,540		1,644
Global Crossing
12.000%, 09/15/15		1,370		1,548
Inmarsat Finance
7.375%, 12/01/17 (B)		2,125		2,221

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Intelsat
9.250%, 06/15/16	$	350	$	373
Intelsat Jackson Holding
11.250%, 06/15/16		3,475		3,779
9.500%, 06/15/16		1,270		1,354
8.500%, 11/01/19 (B)		1,355		1,470
7.250%, 10/15/20 (B)		1,305		1,312
Intelsat Luxembourg
11.500%, 02/04/17		2,968		3,216
11.250%, 02/04/17		2,150		2,303
Intelsat Subsidiary Holding
8.875%, 01/15/15 (B)		320		330
8.875%, 01/15/15		1,775		1,837
ITC Deltacom
10.500%, 04/01/16		690		701
Level 3 Communications
6.500%, 10/01/16		495		506
Level 3 Financing
10.000%, 02/01/18		3,320		2,988
4.140%, 02/15/15 (C)		125		101
Lucent Technologies
6.450%, 03/15/29		1,080		786
MetroPCS Wireless
9.250%, 11/01/14		860		901
7.875%, 09/01/18		2,650		2,730
NII Capital
10.000%, 08/15/16		1,390		1,581
Orascom Telecom Finance
7.875%, 02/08/14 (B)		1,800		1,742
PAETEC Holding
9.500%, 07/15/15		2,235		2,280
8.875%, 06/30/17		1,040		1,087
Primus Telecommunications Holding
13.000%, 12/15/16 (B)		818		851
Qwest
7.500%, 06/15/23		1,015		1,020
7.250%, 09/15/25		350		368
7.250%, 10/15/35		1,200		1,188
6.875%, 09/15/33		225		222
Qwest Communications International, Ser B
7.500%, 02/15/14		1,635		1,668
Sable International Finance MTN
7.750%, 02/15/17 (B)		590		622
Sprint Capital
8.750%, 03/15/32		6,090		6,395
6.900%, 05/01/19		1,105		1,111
Telcordia Technologies
11.000%, 05/01/18 (B)		6,295		6,177
Telesat Canada
12.500%, 11/01/17		760		897
11.000%, 11/01/15		830		938

SEI Institutional Managed Trust / Annual Report / September 30, 2010 125

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Trilogy International Partners
10.250%, 08/15/16 (B)	$	585	$	544
tw telecom holdings inc
8.000%, 03/01/18		1,585		1,660
Virgin Media Finance PLC
8.375%, 10/15/19		1,300		1,427
West
11.000%, 10/15/16		2,935		3,118
9.500%, 10/15/14		1,000		1,046
8.625%, 10/01/18 (B)		1,952		1,952
Wind Acquisition Finance
11.750%, 07/15/17 (B)		2,913		3,264
10.750%, 12/01/09 (B)		2,335		2,472
Windstream
8.625%, 08/01/16		1,920		2,040
8.125%, 09/01/18 (B)		275		284
				96,807
Utilities — 2.0%
AES
9.750%, 04/15/16		1,210		1,391
8.000%, 06/01/20		755		819
7.750%, 03/01/14		50		54
Calpine
7.875%, 07/31/20 (B)		2,602		2,674
Calpine Generating
14.320%, 04/01/11 (A) (C)		1,600		204
Edison Mission Energy
7.625%, 05/15/27		1,400		941
Elwood Energy
8.159%, 07/05/26		787		740
Energy Future Holdings
10.875%, 11/01/17		241		145
10.000%, 01/15/20 (B)		395		392
6.500%, 11/15/24		1,055		404
Energy Future Intermediate Holding
10.000%, 12/01/20		1,864		1,850
Ferrellgas Partners
6.750%, 05/01/14		1,250		1,272
GenOn Escrow
9.500%, 10/15/18 (B)		690		664
Mirant Americas Generation LLC
8.500%, 10/01/21		1,500		1,444
Mirant North America LLC
7.375%, 12/31/13		600		618
North American Energy Alliance
10.875%, 06/01/16 (B)		1,100		1,202
NRG Energy
8.500%, 06/15/19		2,185		2,302
8.250%, 09/01/20 (B)		1,555		1,604
7.375%, 02/01/16		1,360		1,399
7.375%, 01/15/17		3,525		3,613
Public Service of New Mexico
7.950%, 05/15/18		2,600		2,870

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Puget Sound Energy
6.974%, 06/01/67 (C)	$	905	$	844
Southern Energy
0.000%, 07/15/04 (A)		450		4
Texas Competitive Electric Holdings
10.250%, 11/01/15		1,680		1,100
TXU, Ser P
5.550%, 11/15/14		200		107
TXU, Ser R
6.550%, 11/15/34		2,210		840
				29,497
Total Corporate Obligations (Cost $1,165,601) ($ Thousands)				1,226,412
LOAN PARTICIPATIONS — 6.2%
Advantage Sales
8.500%, 04/15/17		1,600		1,594
Affinion
7.757%, 03/01/12		593		587
Affinion Group
7.641%, 03/01/12		4,300		4,257
Alliance Laundry Systems
0.000%, 09/23/16 (J)		1,290		1,298
Allison Transmission
3.010%, 08/07/14		274		257
3.000%, 08/07/14		10		9
2.990%, 08/07/14		100		93
American General Finance
7.250%, 04/08/15		3,610		3,626
Asurion, 2nd Lien
6.734%, 07/03/15		2,700		2,560
Boston Generating, 2nd Lien
4.501%, 06/20/14		700		102
Boston Generating, Mezzanine
7.251%, 12/20/16		211		1
CDW
4.257%, 10/12/14		990		910
Central Parking
1.843%, 05/22/14		608		505
Central Parking, 1st Lien
2.563%, 05/22/14		1,433		1,179
CF Industries Holdings, Term Loan B-1
4.500%, 04/05/15		899		905
Chester Downs
12.375%, 12/31/49		546		549
CIT Group
6.250%, 08/11/15		2,314		2,329
Claire’s Stores
3.010%, 05/27/14		3		2
3.001%, 05/27/14		1,054		919
Clear Channel
3.884%, 01/29/16		318		250

126 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Clopay Ames True Temper Holding, Term B Loan
0.000%, 09/28/16 (J)	$	1,700	$	1,704
DAE Aviation Holdings, Tranche B-1
4.000%, 07/31/14		360		337
DAE Aviation Holdings, Tranche B-2
4.000%, 09/27/14		349		326
3.990%, 09/27/14		1		1
Dex Media West, Term Loan D-2
9.250%, 06/30/11		211		179
9.000%, 06/30/11		252		213
Federal Mogul
2.198%, 12/29/14		3		3
2.167%, 12/29/14		1,217		1,068
Federal Mogul, Term C Loan
2.198%, 12/28/15		2		1
2.167%, 12/28/15		621		546
First Data, Initial Tranche B-1
3.001%, 09/24/14		43		38
2.999%, 09/24/14		27		24
2.982%, 09/24/14		885		779
First Data, Initial Tranche B-2
3.001%, 09/24/14		14		12
2.999%, 09/24/14		298		262
Gambro Aktiebolag
5.186%, 11/24/16		1,040		848
5.119%, 05/24/16		922		766
Georgia Pacific
2.256%, 12/20/12		27		27
2.240%, 12/20/12		213		211
Green Valley Ranch Gaming, 2nd Lien
3.504%, 08/06/14 (A)		2,000		41
Guitar Center
3.760%, 10/09/13		128		115
3.750%, 10/09/13		1,705		1,527
Harrah’s Operating
9.500%, 01/28/15		2,985		3,057
3.250%, 01/28/15		10		8
3.249%, 01/28/15		1,240		1,065
Hexion Specialty Chemicals, Term Loan C-1
2.813%, 05/05/13		1,205		1,151
Hexion Specialty Chemicals, Term Loan C-2
2.563%, 05/05/13		461		440
Iasis Healthcare
5.499%, 06/13/14		3,470		3,294
Ineos Group, Term Loan B-2
7.500%, 12/16/13		1,298		1,295
Ineos Group, Term Loan C-2
8.000%, 12/16/14		1,488		1,492
Infor Global Enterprise Solutions
6.506%, 03/02/14		150		97
6.479%, 03/02/14		767		496

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Infor Global Solutions
8.260%, 08/29/14	$	3,693	$	1,159
Infor Global Solutions, 2nd Lien
6.479%, 03/02/14		1,583		1,024
Intelsat Jackson Holding
2.734%, 02/01/14		2,100		1,901
Landry’s Restaurants
6.258%, 05/13/11		1,523		1,530
Medical Card
12.000%, 09/15/16		1,515		1,477
Merrill, Term B Loan 1st Lien
0.000%, 05/15/11 (J)		1,100		1,049
Metroflag, 2nd Lien
14.000%, 01/06/09 (A)		300		—
NBTY, Term B Loan
0.000%, 10/07/11 (J)		1,450		1,464
NCO Group
7.500%, 05/15/13		727		685
7.250%, 05/15/13		261		246
Nuveen Investments, 2nd Lien
13.800%, 11/09/14		690		747
12.500%, 07/31/15		595		644
Open Link Financial
10.250%, 11/06/15		2,250		2,351
OSI Restaurant Partners
2.875%, 06/14/13		43		40
2.875%, 06/14/14		3,658		3,355
2.625%, 06/14/13		25		23
0.112%, 06/14/13		184		169
PQ
6.770%, 06/14/14		1,297		1,195
Realogy
13.500%, 10/15/17		545		580
3.250%, 10/13/13		1,020		905
Rexnord, Term B Loan
7.252%, 03/01/13		2,305		1,884
Reynold, 1st Lien
6.250%, 10/24/12		1,481		1,489
Reynolds Consumer Products, Term A Loan
0.000%, 08/05/15 (J)		2,500		2,498
Sabre Holdings
2.475%, 09/30/14		441		407
Sabre, Initial Term Loan
2.256%, 09/30/14		778		719
Shield Finance
7.750%, 06/15/16		1,500		1,451
Simmons Holdco Unsecured
0.000%, 02/15/12 (J)		1,697		—
Targa Resources
5.256%, 02/09/15		2,187		1,859
Texas Competitive Electric Holdings, Term Loan B-2
3.758%, 10/10/14		4,284		3,326

SEI Institutional Managed Trust / Annual Report / September 30, 2010 127

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Continued)

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
3.751%, 10/10/14	$	50	$	39
3.735%, 10/10/14		5,006		3,887
Texas Competitive Electric Holdings, Term Loan B-3
3.758%, 10/10/14		379		293
3.751%, 10/10/14		2		2
Texas Competitive Electric Holdings, Tranche B-2
3.716%, 10/10/14		255		198
Tomkins, Term B Loan
0.000%, 09/07/16 (J)		1,000		1,008
Tronox DIP, Term Loan B-1
11.250%, 10/06/11		682		681
Tronox DIP, Term Loan B-2
11.250%, 10/06/11		183		183
Valeant Pharmaceuticals, Term B Loan
0.000%, 06/21/16 (J)		4,405		4,442
Vertafore
7.250%, 08/06/16		55		55
6.750%, 08/06/16		1,945		1,949
Wide Open West Finance
8.500%, 06/27/15		—		—
6.507%, 06/27/15		2,079		1,809
Zuffa
7.500%, 06/18/15		1,733		1,748
Total Loan Participations (Cost $94,343) ($ Thousands)				93,826
COLLATERALIZED DEBT OBLIGATIONS — 2.5%
Financials — 1.7%
ACAS CLO, Ser 2007-1A, Cl A1J
0.559%, 04/20/21 (B) (C)		5,207		4,062
ACAS Business Loan Trust, Ser 2007-2A, Cl A
0.650%, 11/18/09 (B) (C)		9		809
CIFC Funding, Ser 2007-3A, Cl B
1.499%, 07/26/21 (B) (C)		2,500		1,385
CIT CLO, Ser 2007-1A, Cl E
5.271%, 06/20/21 (C)		800		344
CIT CLO, Ser 2007-1A, Cl D
2.271%, 06/20/21 (B) (C)		2,800		1,428
Connecticut Valley Structured Credit CDO, Ser 2006-3A, Cl NOTE
0.000%, 03/23/23 (B)		2,200		11
De Meer Middle Market CLO, Ser 2006-1A, Cl INC
0.000%, 10/20/18 (B)		3,366		1,010
Duane Street CLO, Ser 2007-5A, Cl SN
0.000%, 10/14/21 (B)		3,300		990
Emporia Preferred Funding, Ser 2007-3A, Cl C
1.149%, 04/23/21 (B) (C)		1,708		1,110

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
Gleneagles CLO, Ser AI
0.000%, 11/01/17 (C)	$	7,000	$	325
Peritus I CDO, Ser 2005-1A, Cl C
9.000%, 05/24/15 (B)		12,517		8,386
Peritus I CDO, Ser 2007-1A
0.000%, 12/19/17		3,750		750
Rockwall Investors
0.000%, 08/01/21*(B)		4,000		360
Rockwall CDO, Ser 2006-1A, Cl A1LA
0.766%, 08/01/21 (B) (C)		5,775		4,360
Waterfront CLO, Ser 2007-1A, Cl A2
0.684%, 08/02/20 (B) (C)		337		261
				25,591
Other Asset-Backed Securities — 0.8%
FM Leveraged Capital Fund, Ser 2006-2A, Cl B
0.846%, 11/15/20 (B) (C)		3,157		2,321
FM Leveraged Capital Fund, Ser 2006-2A, Cl D
1.976%, 11/15/20 (B) (C)		694		364
Grayson CLO, Ser 2006-1A, Cl A1B
0.826%, 11/01/21 (B) (C)		6,394		4,156
Rockwall CDO, Ser 2007-1A, Cl A1LA
0.716%, 08/01/24 (B) (C)		5,945		4,559
Stone Tower CDO, Ser 2004-1A, Cl A1LA
0.981%, 01/29/20 (B) (C)		1,572		1,289
				12,689
Total Collateralized Debt Obligations (Cost $51,105) ($ Thousands)				38,280
CONVERTIBLE BONDS — 0.4%
DryShips
5.000%, 12/01/14		630		591
Hologic CV to 25.9110
2.000%, 12/15/37		970		897
Leap Wireless International CV to 10.729
4.500%, 07/15/14		627		557
Liberty Media CV to 16.7764
3.750%, 02/15/30		540		303
Liberty Media CV to 22.94686
4.000%, 11/15/29		1,000		571
Lions Gate Entertainment CV to 86.9565
2.938%, 10/15/24		1,124		1,108
Live Nation Entertainment
2.875%, 07/15/27		579		495
Mirant CV to 14.7167
0.000%, 06/15/21 (A)		2,200		4
Standard Pacific
6.000%, 10/01/12		790		797

128 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Vector Group CV to 59.3618
12.921%, 06/15/26 (C)	$	415	$	494
Total Convertible Bonds (Cost $5,264) ($ Thousands)				5,817
PREFERRED STOCK — 0.5%
Ally Financial (B)
17.310%		5		4,583
Axis Capital Holdings
1.875%		13		1,118
Dana Holding (B)
4.000%		5		598
SandRidge Energy
8.500%		6		580
Total Preferred Stock (Cost $5,210) ($ Thousands)				6,879
ASSET-BACKED SECURITIES — 0.2%
Other Asset-Backed Securities — 0.2%
Airplanes Pass Through Trust, Ser 2001-1A
0.807%, 03/15/19 (C)		1,900		1,159
Dominos Pizza Master Issuer LLC, Ser 2007-1, Cl A2
5.261%, 04/25/37 (B)		1,169		1,169
Total Asset-Backed Securities (Cost $2,042) ($ Thousands)				2,328
COMMON STOCK — 0.5%
Aventine Renewable Energy Holdings* (B)		66,516		1,713
Core-Mark Holding*		861		27
Dana Holding*		64,570		795
Dex One*		31,547		387
LyondellBasell Industries, Cl A*		57,479		1,374
LyondellBasell Industries, Cl B*		82,076		1,957
Neenah Enterprises*		17,244		69
Quad*		74		3
Shreveport Gaming Holdings		13,948		102
Solutia*		186		3
UAL*		35		1
VSS AHC, Cl A*, (F) (G)		38,453		459
Total Common Stock (Cost $6,683) ($ Thousands)				6,890

Description	Shares		Market Value ($ Thousands)
AUCTION RATE PREFERRED SECURITIES — 0.4%
BlackRock Insured Municipal Income Trust		14	$	1,141
BlackRock Municipal Income Trust		42		3,444
BlackRock MuniVest Fund		13		1,058
BlackRock MuniYield Insured Fund		11		872
Total Auction Rate Preferred Securities (Cost $6,586) ($ Thousands)				6,515
	Number of Warrants
WARRANTS — 0.0%
Alion Science & Technology, Expires 03/15/17*		2,600		—
Atrium, Expires 10/14/18*		706		—
Grande Communications, Expires 04/01/11*		850		—
Total Warrants (Cost $8) ($ Thousands)				—
CASH EQUIVALENT — 9.2%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%†**		138,662,227		138,662
Total Cash Equivalent (Cost $138,662) ($ Thousands)				138,662
AFFILIATED PARTNERSHIP — 0.0%
SEI Liquidity Fund, L.P., 0.230%†** (I)		6,084		5
Total Affiliated Partnership (Cost $6) ($ Thousands)				5
Total Investments — 101.4% (Cost $1,475,510) ($ Thousands)			$	1,525,614

SEI Institutional Managed Trust / Annual Report / September 30, 2010 129

SCHEDULE OF INVESTMENTS

High Yield Bond Fund (Concluded)

September 30, 2010

A summary of outstanding swap agreements held by the Fund at September 30, 2010, is as follows:

Credit Default Swaps
Counterparty	Reference Entity/Obligation	Buy/Sell Protection	(Pays)/ Receives Rate		Termination Date		Notional Amount (Thousands)		Net Unrealized Depreciation ($Thousands)
Barclays Bank PLC	CDX.NA.HY.SERIES 13 12/14	BUY		5.00		12/20/14		14,355	$	(1,043	)

Percentages are based on a Net Assets of $1,504,916 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

‡ Real Estate Investment Trust

(A) Security in default on interest payments.

(B) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other “accredited investors.” These securities have been determined to be liquid under guidelines established by the board of Trustees.

(C) Variable Rate Security—The rate reported on the Schedule of Investments is the rate in effects as of September 30, 2010. The date reported on the Schedule of Investments is the next reset date.

(D) Step Bonds—The rate reflected on the Schedule of Investments is the effective yield on September 30, 2010. The coupon on a step bond changes on a specified date.

(E) This security or a partial position of this security is on loan at September 30, 2010 (see Note 9). The total value of securities on loan at September 30, 2010 was $0 ($ Thousands).

(F) Securities considered restricted. The total value of such securities as of September 30, 2010 was $1,494 ($ Thousands) and represented 0.10% of Net Assets.

(G) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of September 30, 2010 was $1,609 ($ Thousands) and represented 0.11% of Net Assets.

(H) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase.

(I) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of September 30, 2010 was $5 ($ Thousands).

(J) Unsettled bank loan. Interest rate not available.

CDO — Collateralized Debt Obligation

Cl — Class

CLO — Collateralized Loan Obligation

CV — Convertible Security

Ltd. — Limited

LLC — Limited Liability Company

LLP — Limited Liability Partnership

L.P. — Limited Partnership

MTN — Medium Term Note

PIK — Payment-in-Kind

PLC — Public Limited Company

Ser — Series

Amounts designated as “—” are $O or have been rounded to $O

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Corporate Obligations	$	—	$	1,212,600	$	13,812	$	1,226,412
Loan Participations		—		83,200		10,626		93,826
Collateralized Debt Obligations		—		—		38,280		38,280
Convertible Bonds		—		5,813		4		5,817
Preferred Stock		—		6,879		—		6,879
Asset-Backed Securities		—		2,328		—		2,328
Common Stock		4,548		69		2,273		6,890
Auction Rate Preferred Securities		—		—		6,515		6,515
Cash Equivalent		138,662		—		—		138,662
Affiliated Partnership		—		5		—		5
Total Investments in Securities	$	143,210	$	1,310,894	$	71,510	$	1,525,614

Other Financial Instruments	Level 1		Level 2			Level 3		Total
Credit Default Swaps*	$	—	$	(1,043	)	$	—	$	(1,043	)

* Swaps are valued at the unrealized depreciation on the instrument.

130 SEI Institutional Managed Trust / Annual Report / September 30, 2010

The following is a reconciliation of the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Corporate Obligations			Loan Participations			Collateralized Debt Obligations			Convertible Bonds		Common Stock			Auction Rate Preferred Securities
Beginning balance as of October 1, 2009	$	3,544		$	20,916		$	36,616		$	4	$	279		$	—
Accrued discounts/premiums		115			229			(382	)		—		—			—
Realized gain/(loss)		92			567			(6,612	)		—		(35	)		—
Change in unrealized appreciation/(depreciation)		483			2,016			48,827			—		(143	)		(71	)
Net purchases/sales		(18	)		(11,563	)		(48,555	)		—		—			6,586
Net transfer in and/or out of Level 3		9,596			(1,539	)		8,386			—		2,172			—
Ending balance as of September 30, 2010	$	13,812		$	10,626		$	38,280		$	4	$	2,273		$	6,515
Changes in unrealized gains (losses) included in earnings Related to securities held at reporting date	$	376		$	430		$	2,847		$	—	$	(143	)	$	—

SEI Institutional Managed Trust / Annual Report / September 30, 2010 131

SCHEDULE OF INVESTMENTS

Real Return Fund

September 30, 2010

Description	Face Amount ($ Thousands)/Shares		Market Value ($ Thousands)
U.S. TREASURY OBLIGATIONS — 98.2%
U.S. Treasury Bond TIPS
3.000%, 07/15/12	$	12,034	$	12,779
2.375%, 04/15/11 to 01/15/17		13,134		14,021
2.000%, 04/15/12 to 01/15/16 (C)		98,435		105,195
1.875%, 07/15/13 to 07/15/15		21,479		22,951
1.625%, 01/15/15		37,878		40,479
1.250%, 04/15/14		16,431		17,287
0.625%, 04/15/13 (A)		23,207		23,829
Total U.S. Treasury Obligations (Cost $232,060) ($ Thousands)				236,541
AFFILIATED PARTNERSHIP — 4.0%
SEI Liquidity Fund, L.P., 0.230%†* (B)		9,736,194		9,736
Total Affiliated Partnership (Cost $9,736) ($ Thousands)				9,736
CASH EQUIVALENT — 1.2%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%†*		2,833,113		2,833
Total Cash Equivalent (Cost $2,833) ($ Thousands)				2,833
Total Investments — 103.4% (Cost $244,629) ($ Thousands)			$	249,110

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)			Expiration Date		Unrealized Depreciation ($ Thousands)
U.S. 5-Year Treasury Note		(93	)		Dec-2010	$	(93	)

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on a Net Assets of $240,925 ($ Thousands).

* Rate shown is the 7-day effective yield as of September 30, 2010.

† Investment in Affiliated Security (see Note 5).

(A) This security or a partial position of this security is on loan at September 30, 2010. The total value of securities on loan at September 30, 2010 was $9,498 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of September 30, 2010 was $9,736 ($ Thousands).

(C) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

TIPS — Treasury Inflation Protected Security

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
U.S. Treasury Obligations	$	—	$	236,541	$	—	$	236,541
Affiliated Partnership		—		9,736		—		9,736
Cash Equivalent		2,833		—		—		2,833
Total Investments in Securities	$	2,833	$	246,277	$	—	$	249,110

Other Financial Instruments	Level 1			Level 2		Level 3		Total
Futures Contracts*	$	(93	)	$	—	$	—	$	(93	)

* Futures contracts are valued at the unrealized depreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between level 1 and level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between level 2 and level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements

The accompanying notes are an integral part of the financial statements.

132 SEI Institutional Managed Trust / Annual Report / September 30, 2010

SCHEDULE OF INVESTMENTS

Multi-Strategy Alternative Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
REGISTERED INVESTMENT COMPANIES — 96.6%
Aberdeen Equity Long Short Fund, Institutional Class		1,053,528	$	11,968
AQR Diversified Arbitrage Fund, Class I		1,855,171		20,630
AQR Managed Futures Strategy Fund, Class I**		1,084,621		10,900
Driehaus Active Income Fund		2,365,711		26,212
DWS Disciplined Market Neutral Fund, Institutional Class		996,092		9,682
Eaton Vance Global Macro Absolute Return Fund, Class I		1,887,871		19,521
JPMorgan Research Market Neutral Fund, Institutional Class		1,549,483		24,079
Manager AMG FW Alternative Fund, Institutional Class**		982,643		10,052
Merger Fund		1,751,149		27,896
TFS Market Neutral Fund		1,294,808		20,264
Turner Spectrum Fund, Institutional Class		308,896		3,342
Total Registered Investment Companies (Cost $183,039) ($ Thousands)				184,546
CASH EQUIVALENT — 4.1%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% * †		7,758,452		7,758
Total Cash Equivalent (Cost $7,758) ($ Thousands)				7,758
Total Investments — 100.7% (Cost $190,797) ($ Thousands)			$	192,304

Percentages are based on Net Assets of $191,055 ($ Thousands).

† Investment in Affiliated Security (see Note 5).

* Rate shown is the 7-day effective yield as of September 30, 2010.

** Non-income producing security.

Cl — Class

As of September 30, 2010, all of the Fund’s investments were considered level 1, in accordance with ASC-820.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

For more information on valuation inputs, see Note 2 — Significant Accounting Policies in Notes to Financial Statements.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 133

Statements of Assets and Liabilities ($ Thousands)

September 30, 2010

	Large Cap Fund(1)			Large Cap Value Fund			Large Cap Growth Fund
ASSETS:
Investments, at value†	$	1,349,510	*	$	1,490,639	*	$	1,494,242	*
Affiliated investment, at value††		140,745			158,139			220,315
Cash		19			46			574
Receivable for investment securities sold		12,336			6,290			18,027
Receivable for fund shares sold		3,537			399			337
Dividends and interest receivable		1,495			1,873			1,243
Receivable for variation margin		37,038			6			6
Unrealized gain on forward foreign currency contracts		—			—			—
Unrealized gain on foreign spot currency contracts		—			—			—
Prepaid Expenses		18			33			27
Total Assets		1,544,698			1,657,425			1,734,771
LIABILITIES:
Payable upon return on securities loaned		97,897			134,650			102,417
Payable for investment securities purchased		11,814			5,166			15,798
Payable for fund shares redeemed		911			1,896			4,851
Payable for variation margin		37,144			84			374
Administration fees payable		391			432			453
Investment advisory fees payable		405			374			454
Shareholder servicing fees payable Class A		118			246			199
Shareholder servicing fees payable Class I		—			2			2
Chief Compliance Officer fees payable		2			2			2
Administration servicing fees payable Class I		—			2			1
Unrealized loss on forward foreign currency contracts		—			—			—
Unrealized loss on foreign spot currency contracts		—			—			—
Accrued expense payable		117			131			137
Total Liabilities		148,799			142,985			124,688
Net Assets	$	1,395,899		$	1,514,440		$	1,610,083
† Cost of investments and repurchase agreements		1,267,485			1,395,203			1,198,976
†† Cost of affiliated investments		140,745			163,163			223,794
* Includes market value of securities on loan		94,814			130,963			99,295
NET ASSETS:
Paid-in-Capital — (unlimited authorization — no par value)	$	1,284,830		$	1,949,238		$	2,308,271
Undistributed (distributions in excess of) net investment income		2,840			5,338			2,419
Accumulated net realized gain (loss) on investments, futures and foreign currency		25,314			(531,184	)		(994,037	)
Net unrealized appreciation on investments, affiliated investments and option contracts		82,025			90,412			291,787
Net unrealized appreciation on futures contracts		890			636			1,643
Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies		—			—			—
Net Assets	$	1,395,899		$	1,514,440		$	1,610,083
Net Asset Value, Offering and Redemption Price Per Share — Class A		$10.77			$14.75			$19.66
		($1,395,899,418 ÷ 129,653,266 shares)			($1,504,082,452 ÷ 101,940,065 shares)			($1,602,129,888 ÷ 81,486,195 shares)
Net Asset Value, Offering and Redemption Price Per Share — Class E		N/A			N/A			N/A
Net Asset Value, Offering and Redemption Price Per Share — Class I		N/A			$14.76			$19.47
					($10,358,004 ÷ 701,970 shares)			($7,953,286 ÷ 408,550 shares)
Net Asset Value, Offering and Redemption Price Per Share — Class Y		N/A			N/A			N/A

Amounts designated as “—” are $0 or have been rounded to $0.

(1) Commenced operations on October 1, 2009.

The accompanying notes are an integral part of the financial statements.

134 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Tax-Managed Large Cap Fund			S&P 500 Index Fund			Small Cap Fund(1)			Small Cap Value Fund			Small Cap Growth Fund			Tax-Managed Small Cap Fund			Mid-Cap Fund
	$1,504,859	*		$1,354,951	*		$217,413	*		$533,567	*		$379,068	*		$291,021	*		$122,168	*
	163,433			219,765			50,461			147,273			110,319			126,579			28,719
	39			4			726			154			53			77			5
	6,891			—			1,503			2,572			2,289			1,779			243
	658			5,549			330			61			46			94			178
	1,446			1,717			233			671			280			299			155
	33,520			—			6			5			5			—			5
	—			—			—			—			—			9			—
	—			—			—			1			—			35			—
	24			51			3			9			8			4			2
	1,710,870			1,582,037			270,675			684,313			492,068			419,897			151,475
	131,826			187,501			44,869			139,060			103,679			117,279			25,977
	4,922			—			1,086			1,367			3,085			1,513			98
	1,545			13,500			497			463			301			379			108
	33,618			144			8			26			15			16			—
	434			177			66			152			107			84			35
	413			33			115			279			188			130			40
	201			13			33			44			43			44			12
	—			1			—			1			1			—			—
	2			2			1			1			1			—			—
	—			2			—			1			—			—			—
	—			—			—			—			—			46			—
	—			—			—			—			—			35			—
	132			117			22			48			35			28			13
	173,093			201,490			46,697			141,442			107,455			119,554			26,283
	$1,537,777			$1,380,547			$223,978			$542,871			$384,613			$300,343			$125,192
	1,264,503			777,601			195,128			471,316			314,406			243,324			115,475
	167,528			222,846			50,461			151,272			113,370			127,188			29,097
	127,992			182,445			43,356			135,142			100,287			114,123			25,217
	$1,897,102			$   854,772			$184,963			$673,145			$639,416			$334,020			$157,789
	3,548			6,641			(3	)		1,236			(4	)		337			244
	(599,856	)		(56,289	)		16,720			(190,266	)		(316,700	)		(81,439	)		(39,265	)
	236,261			574,269			22,285			58,252			61,611			47,088			6,315
	722			1,154			12			502			290			374			109
	—			—			1			2			—			(37	)		—
	$1,537,777			$1,380,547			$223,978			$542,871			$384,613			$300,343			$125,192
	$11.02			$31.30			$11.14			$15.45			$14.69			$10.81			$15.80
	($1,534,796,483 ÷ 139,301,374 shares)			($325,796,045 ÷ 10,410,400 shares)			($223,978,141 ÷ 20,099,360 shares)			($535,938,604 ÷ 34,692,516 shares)			($380,910,678 ÷ 25,926,802 shares)			($300,343,232 ÷ 27,774,140 shares)			($124,569,186 ÷ 7,882,270 shares)
	N/A			$31.42			N/A			N/A			N/A			N/A			N/A
				($1,046,409,935 ÷ 33,299,472 shares)
	N/A			$31.37			N/A			$15.34			$14.34			N/A			$15.81
				($8,340,954 ÷ 265,870 shares)						($6,932,799 ÷ 452,032 shares)			($3,702,803 ÷ 258,162 shares)						($623,196 ÷ 39,428 shares	)
	$11.24			N/A			N/A			N/A			N/A			N/A			N/A
	($2,980,103 ÷ 265,068 shares	)

SEI Institutional Managed Trust / Annual Report / September 30, 2010 135

Statements of Assets and Liabilities ($ Thousands)

September 30, 2010

	U.S. Managed Volatility Fund			Global Managed Volatility Fund			Tax-Managed Managed Volatility Fund
ASSETS:
Investments, at value†	$	402,758		$	310,294		$	227,089
Affiliated investment, at value††		11,262			15,951			13,947
Repurchase agreement†		—			—			—
Cash		11			2,789			4
Foreign currency, at value†††		—			305			—
Cash collateral on futures		—			—			—
Cash collateral on swaps		—			—			—
Receivable for investment securities sold		2,845			3			1,095
Receivable for fund shares sold		710			1,693			457
Dividends and interest receivable		675			1,630			358
Receivable for variation margin		—			—			—
Swap contracts, at value††††		—			—			—
Unrealized gain on forward foreign currency contracts		—			80			—
Unrealized gain on foreign spot currency contracts		—			—			—
Prepaid Expenses		6			4			3
Total Assets		418,267			332,749			242,953
LIABILITIES:
Payable upon return on securities loaned		—			—			—
Payable for investment securities purchased		1,847			—			6,201
Payable for fund shares redeemed		341			261			132
Payable to Affiliate		—			—			—
Payable to custodian		—			—			—
Payable for variation margin		27			46			15
Administration fees payable		115			92			65
Investment advisory fees payable		129			104			71
Shareholder servicing fees payable Class A		66			65			47
Shareholder servicing fees payable Class I		—			—			—
Chief Compliance Officer fees payable		1			—			—
Trustees fees payable		—			—			—
Income distribution payable		—			—			—
Swap contracts, at value††††		—			—			—
Options written, at value #		—			—			—
Unrealized loss on forward foreign currency contracts		—			1,549			—
Unrealized loss on foreign spot currency contracts		—			—			—
Accrued expense payable		35			42			20
Total Liabilities		2,561			2,159			6,551
Net Assets	$	415,706		$	330,590		$	236,402
† Cost of investments and repurchase agreements		346,527			280,268			193,182
†† Cost of affiliated investments		11,262			15,951			13,947
††† Cost of foreign currency		—			304			—
†††† Premiums received/(paid)		—			—			—
# Premiums received		—			—			—
* Includes market value of securities on loan		—			—			—
NET ASSETS:
Paid-in-Capital — (unlimited authorization — no par value)	$	459,548		$	368,706		$	216,235
Undistributed (distributions in excess of) net investment income		1,165			(6,384	)		658
Accumulated net realized gain (loss) on investments, affiliated investments,option contracts, futures, swap contracts, swaptions and foreign currency		(101,399	)		(60,453	)		(14,499	)
Net unrealized appreciation (depreciation) on investments, affiliated investments and option contracts		56,231			30,026			33,907
Net unrealized appreciation (depreciation) on futures contracts		161			143			101
Net unrealized depreciation on swap contracts		—			—			—
Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies		—			(1,448	)		—
Net Assets	$	415,706		$	330,590		$	236,402
Net Asset Value, Offering and Redemption Price Per Share — Class A		$10.81			$8.21			$9.24
		($415,669,253 ÷ 38,448,629 shares)			($330,526,092 ÷ 40,250,168 shares)			($236,401,611 ÷ 25,590,015 shares)
Net Asset Value, Offering and Redemption Price Per Share — Class I		$10.79			$8.15			N/A
		($36,295 ÷ 3,363 shares)			($63,434 ÷ 7,785 shares)

Amounts designated as “—” are $0 or have been rounded to $0.

(1) Commenced operations on March 31, 2010.

The accompanying notes are an integral part of the financial statements.

136 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Real Estate Fund			Enhanced Income Fund			Core Fixed Income Fund			U.S. Fixed Income Fund			High Yield Bond Fund			Real Return Fund			Multi-Strategy Alternative Fund(1)
	$211,117	*		$133,451			$2,434,896	*		$907,872	*		$1,386,947	*		$236,541	*		$184,546
	99,160			5,616			167,321			44,763			138,667			12,569			7,758
	—			1,300			—			—			—			—			—
	—			186			26			—			4,817			—			—
	—			—			—			—			—			—			—
	—			850			—			—			—			—			—
	—			—			5,110			—			1,569			—			—
	1,711			64			300,958			63,187			28,425			—			—
	311			236			1,960			1,751			1,975			750			939
	495			499			17,720			5,629			30,193			1,114			59
	—			—			139			4			—			—			—
	—			—			3,352			629			—			—			—
	—			—			—			—			—			—			—
	1			—			—			—			—			—			—
	3			3			37			13			21			2			13
	312,798			142,205			2,931,519			1,023,848			1,592,614			250,976			193,315
	89,831			—			43,589			18,124			6			9,736			—
	1,140			4,384			525,335			126,028			81,237			—			2,048
	434			441			2,564			1,255			2,102			220			135
	—			—			—			—			1,668			—			—
	—			—			—			8			—			—			—
	—			4			16			5			—			4			—
	64			39			539			204			394			30			39
	113			51			493			191			507			41			23
	24			28			151			—			34			—			—
	—			—			3			—			—			—			—
	—			—			3			1			2			—			—
	—			—			3			—			—			—			—
	—			—			552			104			1,441			—			—
	—			—			3,912			—			160			—			—
	—			—			484			88			—			—			—
	—			—			828			—			—			—			—
	1			—			4			—			—			—			—
	19			19			284			131			147			20			15
	91,626			4,966			578,760			146,139			87,698			10,051			2,260
	$221,172			$137,239			$2,352,759			$877,709			$1,504,916			$240,925			$191,055
	146,449			138,787			2,444,632			869,383			1,336,842			232,060			183,039
	100,763			5,616			170,697			44,763			138,668			12,569			7,758
	—			—			—			—			—			—			—
	—			—			9,820			1,692			883			—			—
	—			—			(401	)		(73	)		—			—			—
	88,062			—			42,281			17,499			—			9,498			—
	$265,591			$265,631			$2,435,967			$817,865			$1,721,964			$234,697			$191,588
	(89	)		791			(2,520	)		99			8,158			12			—
	(107,398	)		(125,124	)		(56,128	)		22,434			(274,267	)		1,828			(2,040	)
	63,065			(4,036	)		(13,195	)		38,474			50,104			4,481			1,507
	—			(23	)		(163	)		(100	)		—			(93	)		—
	—			—			(10,380	)		(1,063	)		(1,043	)		—			—
	3			—			(822	)		—			—			—			—
	$221,172			$137,239			$2,352,759			$877,709			$1,504,916			$240,925			$191,055
	$11.58			$7.46			$10.93			$10.81			$7.27			$10.51			$9.93
	($220,865,762 ÷ 19,070,932 shares	)		($137,222,892 ÷ 18,398,035 shares	)		($2,335,313,809 ÷ 213,704,088 shares	)		($877,709,324 ÷ 81,221,953 shares	)		($1,503,070,339 ÷ 206,637,388 shares	)		($240,925,134 ÷ 22,915,058 shares	)		($191,054,564 ÷ 19,238,627 shares	)
	$11.57			$7.45			$10.92			N/A			$7.28			N/A			N/A
	($305,866 ÷ 26,435 shares	)		($16,423 ÷ 2,204 shares	)		($17,445,310 ÷ 1,597,183 shares	)					($1,845,943 ÷ 253,492 shares	)

SEI Institutional Managed Trust / Annual Report / September 30, 2010 137

Statements of Operations ($ Thousands)

For the year or period ended September 30, 2010

	Large Cap Fund(1)			Large Cap Value Fund			Large Cap Growth Fund
Investment Income:
Dividends	$	22,771		$	40,154		$	27,795
Dividends from Affiliated Investments*		51			43			60
Interest Income		42			9			12
Securities Lending Income — Net**		—			488			266
Less: Foreign Taxes Witheld		(47	)		(17	)		(135	)
Total Investment Income		22,817			40,677			27,998
Expenses:
Investment Advisory Fees		4,818			6,007			7,343
Administration Fees		4,324			6,007			6,425
Shareholder Servicing Fees Class (A)		3,088			4,263			4,567
Shareholder Servicing Fees Class (I)		—			28			22
Shareholder Servicing Fees Class (Y)		—			—			—
Trustee Fees		25			37			39
Administration Servicing Fees Class (I)		—			28			22
Chief Compliance Officer Fees		7			6			7
Printing Fees		152			178			188
Professional Fees		95			105			111
Custodian/Wire Agent Fees		103			140			150
Registration Fees		11			64			70
Licensing Fees		—			—			—
Other Expenses		39			68			71
Total Expenses		12,662			16,931			19,015
Less:
Waiver of Investment Advisory Fees		(404	)		(985	)		(899	)
Waiver of Shareholder Servicing Fees Class (A)		(1,235	)		(623	)		(1,676	)
Waiver of Shareholder Servicing Fees Class (I)		—			(8	)		(11	)
Waiver of Shareholder Servicing Fees Class (Y)		—			—			—
Fees Paid Indirectly		(11	)		—			(58	)
Net Expenses		11,012			15,315			16,371
Net Investment Income (Loss)		11,805			25,362			11,627
Net Realized and Unrealized Gain (Loss) on Investments:
Net Realized Gain (Loss) on:
Investments		22,355			124,527			192,965
Futures Contracts		8,493			4,047			2,726
Foreign Currency Transactions		—			—			—
Net Change in Unrealized Appreciation (Depreciation) on:
Investments		82,025			(16,521	)		3,678
Affiliated Investments		—			1,239			993
Futures Contracts		890			380			1,350
Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currency		—			—			—
Net Increase in Net Assets from Operations	$	125,568		$	139,034		$	213,339

Amounts designated as “—” are $0 or have been rounded to $0.

* See Note 5 in Notes to Financial Statements.

** Affiliated

(1) Commenced operations on October 1, 2009.

The accompanying notes are an integral part of the financial statements.

138 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Tax-Managed Large Cap Fund			S&P 500 Index Fund			Small Cap Fund(1)			Small Cap Value Fund			Small Cap Growth Fund			Tax-Managed Small Cap Fund			Mid-Cap Fund
$	28,716		$	29,973		$	2,984		$	8,960		$	3,400		$	3,850		$	2,100
	41			29			46			24			13			11			6
	9			3			—			—			2			2			1
	530			325			—			242			221			178			26
	(75	)		—			(4	)		(20	)		(4	)		(3	)		(1	)
	29,221			30,330			3,026			9,206			3,632			4,038			2,132
	6,353			400			1,586			3,731			2,624			1,862			557
	5,553			2,936			854			2,009			1,413			1,003			487
	3,963			958			610			1,417			999			716			347
	—			22			—			18			10			—			2
	5			—			—			—			—			—			—
	33			28			5			12			9			6			3
	—			22			—			18			10			—			2
	6			5			4			2			1			1			1
	170			146			30			60			42			32			15
	101			86			17			36			25			19			9
	129			110			20			47			33			26			12
	55			49			2			22			16			9			5
	—			121			—			—			—			—			—
	64			51			12			27			24			21			9
	16,432			4,934			3,140			7,399			5,206			3,695			1,449
	(1,114	)		(585	)		(112	)		(89	)		(155	)		(302	)		—
	(1,138	)		(268	)		(243	)		(702	)		(547	)		(155	)		(3	)
	—			(9	)		—			(11	)		(6	)		—			—
	(3	)		—			—			—			—			—			—
	(38	)		—			(4	)		(32	)		(4	)		(56	)		(20	)
	14,139			4,072			2,781			6,565			4,494			3,182			1,426
	15,082			26,258			245			2,641			(862	)		856			706
	87,084			1,240			13,620			36,812			48,239			20,593			24,580
	3,664			2,699			3,446			1,540			363			633			721
	—			—			(27	)		(15	)		1			(21	)		—
	37,165			97,240			22,285			23,585			(6,623	)		14,542			(11,358	)
	524			363			—			73			(143	)		(429	)		(12	)
	98			854			12			651			176			179			(2	)
	—			—			1			6			—			(37	)		—
$	143,617		$	128,654		$	39,582		$	65,293		$	41,151		$	36,316		$	14,635

SEI Institutional Managed Trust / Annual Report / September 30, 2010 139

Statements of Operations ($ Thousands)

For the year or period ended September 30, 2010

	U.S. Managed Volatility Fund			Global Managed Volatility Fund			Tax-Managed Managed Volatility Fund
Investment Income:
Dividends	$	8,894		$	7,641		$	4,717
Dividends from Affiliated Investments*		14			15			11
Interest Income		1			28			1
Securities Lending Income — Net**		—			—			—
Less: Foreign Taxes Witheld		(52	)		(466	)		(21	)
Total Investment Income		8,857			7,218			4,708
Expenses:
Investment Advisory Fees		2,428			1,716			1,282
Administration Fees		1,308			924			690
Shareholder Servicing Fees Class (A)		934			660			493
Shareholder Servicing Fees Class (I)		—			—			—
Trustee Fees		8			5			4
Administration Servicing Fees Class (I)		—			—			—
Chief Compliance Officer Fees		2			1			1
Printing Fees		42			31			23
Professional Fees		26			17			14
Custodian/Wire Agent Fees		29			54			16
Registration Fees		13			8			6
Overdraft Fees		—			1			—
Other Expenses		15			33			8
Total Expenses		4,805			3,450			2,537
Less:
Waiver of Investment Advisory Fees		(959	)		(516	)		(530	)
Waiver of Shareholder Servicing Fees Class (A)		(106	)		(1	)		(33	)
Waiver of Shareholder Servicing Fees Class (I)		—			—			—
Waiver of Administration Fees		—			—			—
Fees Paid Indirectly		—			—			—
Net Expenses		3,740			2,933			1,974
Net Investment Income (Loss)		5,117			4,285			2,734
Net Realized and Unrealized Gain (Loss) on Investments:
Net Realized Gain (Loss) on:
Investments		22,183			4,580			7,915
Affiliated Investments		—			—			—
Futures Contracts		417			1,534			350
Written Options		—			—			—
Swaptions		—			—			—
Swap Contracts		—			—			—
Foreign Currency Transactions		—			(7,118	)		—
Net Change in Unrealized Appreciation (Depreciation) on:
Investments		21,811			11,152			17,084
Affiliated Investments		—			—			—
Futures Contracts		(20	)		44			40
Written Options		—			—			—
Swaptions		—			—			—
Swap Contracts		—			—			—
Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currency		—			(606	)		—
Net Increase (Decrease) in Net Assets from Operations	$	49,508		$	13,871		$	28,123

Amounts designated as “—” are $0 or have been rounded to $0.

* See Note 5 in Notes to Financial Statements.

** Affiliated

(1) Commenced operations on March 31, 2010.

The accompanying notes are an integral part of the financial statements.

140 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Real Estate Fund			Enhanced Income Fund			Core Fixed Income Fund			U.S. Fixed Income Fund			High Yield Bond Fund			Real Return Fund			Multi-Strategy Alternative Fund(1)
$	3,330		$	39		$	119		$	39		$	628		$	—		$	58
	16			8			108			—			60			7			5
	—			5,264			119,100			31,688			137,094			2,572			—
	101			—			186			125			—			15			—
	(27	)		—			(290	)		—			(17	)		—			—
	3,420			5,311			119,223			31,852			137,765			2,594			63
	1,353			697			6,726			2,314			6,643			349			1,132
	728			610			6,849			2,356			4,769			555			264
	520			435			6,078			2,104			3,406			396			189
	1			—			37			—			1			—			—
	4			8			51			17			29			3			1
	1			—			37			—			1			—			—
	1			1			9			4			5			1			—
	24			16			260			95			148			20			11
	14			19			157			54			88			12			32
	17			12			189			72			110			14			7
	7			8			92			19			44			2			12
	—			—			—			—			—			—			—
	7			36			409			167			190			4			2
	2,677			1,842			20,894			7,202			15,434			1,356			1,650
	(45	)		(386	)		(510	)		(140	)		(548	)		(164	)		(1,018	)
	(245	)		(407	)		(3,915	)		(1,500	)		(2,744	)		(387	)		(189	)
	—			—			(28	)		—			(1	)		—			—
	—			—			—			—			—			(88	)		(65	)
	(12	)		—			—			—			—			—			—
	2,375			1,049			16,441			5,562			12,141			717			378
	1,045			4,262			102,782			26,290			125,624			1,877			(315	)
	21,172			(26,436	)		71,844			26,672			60,003			2,046			(2,040	)
	—			—			—			—			(3	)		—			—
	—			(1,246	)		13,399			(420	)		—			(43	)		—
	—			—			890			—			—			—			—
	—			—			911			—			—			—			—
	—			—			(7,972	)		(249	)		(808	)		—			—
	(3	)		—			760			—			—			—			—
	29,585			36,061			137,459			23,466			84,626			3,722			1,507
	38			—			495			—			2			—			—
	—			270			(2,463	)		(100	)		—			(93	)		—
	—			—			(2	)		(15	)		—			—			—
	—			—			(112	)		—			—			—			—
	—			—			8,671			(765	)		(1,043	)		—			—
	2			(4	)		(1,145	)		—			—			—			—
$	51,839		$	12,907		$	325,517		$	74,879		$	268,401		$	7,509		$	(848	)

SEI Institutional Managed Trust / Annual Report / September 30, 2010 141

Statements of Changes in Net Assets ($ Thousands)

For the years or period ended September 30,

	Large Cap Fund(2)			Large Cap Value Fund						Large Cap Growth Fund
	10/01/09 to 09/30/10			2010			2009			2010			2009
Operations:
Net Investment Income (Loss)	$	11,805		$	25,362		$	41,578		$	11,627		$	13,342
Net Realized Gain (Loss) from Investments and Futures Contracts		30,848			128,574			(573,490	)		195,691			(477,760	)
Net Realized Gain (Loss) on Foreign Currency Transactions		—			—			—			—			—
Net Change in Unrealized Appreciation (Depreciation) of Investments, Affiliated Investments and Futures Contracts		82,915			(14,902	)		221,865			6,021			276,995
Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currency		—			—			—			—			—
Net Increase (Decrease) in Net Assets from Operations		125,568			139,034			(310,047	)		213,339			(187,423	)
Dividends and Distributions From:
Net Investment Income:
Class A		(9,179	)		(28,231	)		(47,346	)		(11,922	)		(13,281	)
Class E		—			—			—			—			—
Class I		—			(153	)		(239	)		(35	)		(37	)
Class Y		—			—			—			—			—
Net Capital Gains:
Class A		(5,320	)		—			—			—			—
Class E		—			—			—			—			—
Class I		—			—			—			—			—
Return of Capital:
Class A		—			—			—			—			—
Total Dividends and Distributions		(14,499	)		(28,384	)		(47,585	)		(11,957	)		(13,318	)
Capital Share Transactions(1):
Class A:
Proceeds from Shares Issued		1,846,164			279,951			645,382			270,461			680,308
Reinvestment of Dividends and Distributions		13,994			26,863			44,915			11,357			12,627
Cost of Shares Redeemed		(575,328	)		(756,272	)		(870,910	)		(914,247	)		(929,855	)
Increase (Decrease) in Net Assets Derived from Class A Transactions		1,284,830			(449,458	)		(180,613	)		(632,429	)		(236,920	)
Class E:
Proceeds from Shares Issued		—			—			—			—			—
Reinvestment of Dividends and Distributions		—			—			—			—			—
Cost of Shares Redeemed		—			—			—			—			—
Increase in Net Assets Derived from Class E Transactions		—			—			—			—			—
Class I:
Proceeds from Shares Issued		—			2,902			5,835			2,408			5,304
Reinvestment of Dividends and Distributions		—			130			217			28			31
Cost of Shares Redeemed		—			(4,747	)		(4,716	)		(4,555	)		(4,172	)
Increase (Decrease) in Net Assets Derived from Class I Transactions		—			(1,715	)		1,336			(2,119	)		1,163
Class Y:
Proceeds from Shares Issued		—			—			—			—			—
Reinvestment of Dividends and Distributions		—			—			—			—			—
Cost of Shares Redeemed		—			—			—			—			—
Increase (Decrease) in Net Assets Derived from Class Y Transactions		—			—			—			—			—
Increase (Decrease) in Net Assets Derived from Capital Share Transactions		1,284,830			(451,173	)		(179,277	)		(634,548	)		(235,757	)
Net Increase (Decrease) in Net Assets		1,395,899			(340,523	)		(536,909	)		(433,166	)		(436,498	)
Net Assets:
Beginning of Year/Period		—			1,854,963			2,391,872			2,043,249			2,479,747
End of Year/Period	$	1,395,899		$	1,514,440		$	1,854,963		$	1,610,083		$	2,043,249
Undistributed (Distributions in Excess of) Net Investment Income/(Accumulated Net Investment Loss) Included in Net Assets at Year or Period End	$	2,840		$	5,338		$	7,925		$	2,419		$	2,568

(1) See Note 6 in Notes to Financial Statements for additional information.

(2) Commenced operations on October 1, 2009.

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

142 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Tax-Managed Large Cap Fund						S&P 500 Index Fund						Small  Cap Fund(2)			Small Cap Value Fund						Small Cap Growth Fund
2010			2009			2010			2009			10/01/09 to 09/30/10			2010			2009			2010			2009
$	15,082		$	21,534		$	26,258		$	25,014		$	245		$	2,641		$	5,722		$	(862	)	$	706
	90,748			(429,914	)		3,939			(48,076	)		17,066			38,352			(180,523	)		48,602			(258,412	)
	—			—			—			—			(27	)		(15	)		48			1			(96	)
	37,787			175,923			98,457			(52,363	)		22,297			24,309			68,486			(6,590	)		181,991
	—			—			—			—			1			6			(4	)		—			7
	143,617			(232,457	)		128,654			(75,425	)		39,582			65,293			(106,271	)		41,151			(75,804	)
	(16,015	)		(23,986	)		(7,350	)		(9,014	)		(381	)		(4,124	)		(6,670	)		—			(98	)
	—			—			(18,431	)		(16,627	)		—			—			—			—			—
	—			—			(139	)		(134	)		—			(37	)		(67	)		—			—
	(32	)		(45	)		—			—			—			—			—			—			—
	—			—			—			(3,784	)		(186	)		—			(4,119	)		—			—
	—			—			—			(6,354	)		—			—			—			—			—
	—			—			—			(160	)		—			—			(43	)		—			—
	—			—			—			—			—			—			—			(30	)		—
	(16,047	)		(24,031	)		(25,920	)		(36,073	)		(567	)		(4,161	)		(10,899	)		(30	)		(98	)
	344,698			924,843			174,347			430,336			443,002			186,381			268,370			142,613			206,264
	14,652			22,190			6,982			11,884			548			3,804			10,175			28			94
	(547,879	)		(1,243,735	)		(332,876	)		(395,893	)		(258,587	)		(352,875	)		(370,346	)		(280,793	)		(290,286	)
	(188,529	)		(296,702	)		(151,547	)		46,327			184,963			(162,690	)		(91,801	)		(138,152	)		(83,928	)
	—			—			266,963			274,071			—			—			—			—			—
	—			—			17,440			21,275			—			—			—			—			—
	—			—			(169,713	)		(192,042	)		—			—			—			—			—
	—			—			114,690			103,304			—			—			—			—			—
	—			—			2,805			17,809			—			2,142			3,127			1,301			2,291
	—			—			90			267			—			34			107			—			—
	—			—			(3,736	)		(14,749	)		—			(3,477	)		(3,420	)		(2,037	)		(1,706	)
	—			—			(841	)		3,327			—			(1,301	)		(186	)		(736	)		585
	50			411			—			—			—			—			—			—			—
	32			45			—			—			—			—			—			—			—
	(460	)		(321	)		—			—			—			—			—			—			—
	(378	)		135			—			—			—			—			—			—			—
	(188,907	)		(296,567	)		(37,698	)		152,958			184,963			(163,991	)		(91,987	)		(138,888	)		(83,343	)
	(61,337	)		(553,055	)		65,036			41,460			223,978			(102,859	)		(209,157	)		(97,767	)		(159,245	)
	1,599,114			2,152,169			1,315,511			1,274,051			—			645,730			854,887			482,380			641,625
$	1,537,777		$	1,599,114		$	1,380,547		$	1,315,511		$	223,978		$	542,871		$	645,730		$	384,613		$	482,380
$	3,548		$	4,233		$	6,641		$	6,065		$	(3	)	$	1,236		$	1,447		$	(4	)	$	(42	)

SEI Institutional Managed Trust / Annual Report / September 30, 2010 143

Statements of Changes in Net Assets ($ Thousands)

For the years ended September 30,

	Tax-Managed Small Cap Fund
	2010			2009
Operations:
Net Investment Income	$	856		$	1,061
Net Realized Gain (Loss) from Investments and Futures Contracts		21,226			(86,558	)
Net Realized Loss on Foreign Currency Transactions		(21	)		—
Net Change in Unrealized Appreciation (Depreciation) of Investments, Affiliated Investments and Futures Contracts		14,292			52,954
Net Change in Unrealized Depreciation on Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currency		(37	)		—
Net Increase (Decrease) in Net Assets from Operations		36,316			(32,543	)
Dividends and Distributions From:
Net Investment Income:
Class A		(727	)		(1,496	)
Class I		—			—
Total Dividends and Distributions		(727	)		(1,496	)
Capital Share Transactions(1):
Class A:
Proceeds from Shares Issued		114,100			184,323
Reinvestment of Dividends and Distributions		648			1,360
Cost of Shares Redeemed		(112,458	)		(207,700	)
Increase (Decrease) in Net Assets Derived from Class A Transactions		2,290			(22,017	)
Class I:
Proceeds from Shares Issued		—			—
Reinvestment of Dividends and Distributions		—			—
Cost of Shares Redeemed		—			—
Increase in Net Assets Derived from Class I Transactions		—			—
Increase (Decrease) in Net Assets Derived from Capital Share Transactions		2,290			(22,017	)
Net Increase (Decrease) in Net Assets		37,879			(56,056	)
Net Assets:
Beginning of Year		262,464			318,520
End of Year	$	300,343		$	262,464
Undistributed Net Investment Income Included in Net Assets at Year End	$	337		$	88

(1) See Note 6 in Notes to Financial Statements for additional information.

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

144 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Mid-Cap Fund						U.S. Managed Volatility Fund
2010			2009			2010			2009
$	706		$	942		$	5,117		$	5,514
	25,301			(46,851	)		22,600			(111,935	)
	—			—			—			—
	(11,372	)		39,752			21,791			53,205
	—			—			—			—
	14,635			(6,157	)		49,508			(53,216	)
	(728	)		(1,063	)		(5,225	)		(5,650	)
	(1	)		(1	)		—			—
	(729	)		(1,064	)		(5,225	)		(5,650	)
	110,681			74,360			195,255			356,268
	620			896			4,794			5,326
	(120,415	)		(74,607	)		(209,646	)		(380,409	)
	(9,114	)		649			(9,597	)		(18,815	)
	591			311			32			14
	1			1			—			—
	(338	)		(155	)		(16	)		(3	)
	254			157			16			11
	(8,860	)		806			(9,581	)		(18,804	)
	5,046			(6,415	)		34,702			(77,670	)
	120,146			126,561			381,004			458,674
$	125,192		$	120,146		$	415,706		$	381,004
$	244		$	187		$	1,165		$	1,155

SEI Institutional Managed Trust / Annual Report / September 30, 2010 145

Statements of Changes in Net Assets ($ Thousands)

For the years or periods ended September 30,

	Global Managed Volatility Fund						Tax-Managed Managed Volatility Fund						Real Estate Fund
	2010			2009			2010			2009			2010			2009
Operations:
Net Investment Income (Loss)	$	4,285		$	3,008		$	2,734		$	2,270		$	1,045		$	3,521
Net Realized Gain (Loss) from Investments, Affiliated Investments, Futures Contracts, Written Options, Written Swaptions and Swap Contracts		6,114			(47,360	)		8,265			(19,058	)		21,172			(110,434	)
Net Realized Gain (Loss) on Foreign Currency Transactions		(7,118	)		(11,869	)		—			—			(3	)		84
Net Change in Unrealized Appreciation of Investments, Affiliated Investments, Futures Contracts, Written Options, Written Swaptions and Swap Contracts		11,196			30,162			17,124			20,265			29,623			44,829
Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currency		(606	)		(2,353	)		—			—			2			2
Net Increase (Decrease) in Net Assets from Operations		13,871			(28,412	)		28,123			3,477			51,839			(61,998	)
Dividends and Distributions From:
Net Investment Income:
Class A		(792	)		—			(2,727	)		(2,063	)		(5,227	)		(6,052	)
Class I		—			—			—			—			(6	)		(1	)
Net Capital Gains:
Class A		—			—			—			—			—			—
Class I		—			—			—			—			—			—
Return of Capital:
Class A		(72	)		—			—			—			(2,156	)		(37	)
Class I		—			—			—			—			(2	)		—
Total Dividends and Distributions		(864	)		—			(2,727	)		(2,063	)		(7,391	)		(6,090	)
Capital Share Transactions(1):
Class A:
Proceeds from Shares Issued		206,148			238,774			106,386			191,230			132,143			264,480
Reinvestment of Dividends and Distributions		807			—			2,337			1,758			6,463			5,834
Cost of Shares Redeemed		(103,209	)		(200,745	)		(69,982	)		(118,660	)		(183,367	)		(232,334	)
Increase (Decrease) in Net Assets Derived from Class A Transactions		103,746			38,029			38,741			74,328			(44,761	)		37,980
Class I:
Proceeds from Shares Issued		102			21			—			—			183			87
Reinvestment of Dividends and Distributions		—			—			—			—			8			1
Cost of Shares Redeemed		(55	)		(14	)		—			—			(66	)		(4	)
Increase (Decrease) in Net Assets Derived from Class I Transactions		47			7			—			—			125			84
Increase (Decrease) in Net Assets Derived from Capital Share Transactions		103,793			38,036			38,741			74,328			(44,636	)		38,064
Net Increase (Decrease) in Net Assets		116,800			9,624			64,137			75,742			(188	)		(30,024	)
Net Assets:
Beginning of Year/Period		213,790			204,166			172,265			96,523			221,360			251,384
End of Year/Period	$	330,590		$	213,790		$	236,402		$	172,265		$	221,172		$	221,360
Undistributed (Distributions in Excess of) Net Investment Income/(Accumulated Net Investment Loss) Included in Net Assets at Year or Period End	$	(6,384	)	$	(12,964	)	$	658		$	591		$	(89	)	$	2,615

(1) See Note 6 in Notes to Financial Statements for additional information.

(2) Commenced operations on July 2, 2009.

(3) Commenced operations on March 31, 2010.

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

146 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Enhanced Income Fund						Core Fixed Income Fund						U.S. Fixed Income  Fund(2)						High Yield Bond Fund						Real Return  Fund(2)						Multi-Strategy Alternative  Fund(3)
2010			2009			2010			2009			2010			07/02/09 to 09/30/09			2010			2009			2010			07/02/09 to 09/30/09			03/31/10 to 09/30/10
$	4,262		$	9,863		$	102,782		$	149,672		$	26,290		$	4,579		$	125,624		$	107,446		$	1,877		$	664		$	(315	)
	(27,682	)		(64,915	)		79,072			(75,201	)		26,003			2,009			59,192			(158,689	)		2,003			22			(2,040	)
	—			(2,170	)		760			10,277			—			—			—			—			—			—			—
	36,331			25,876			144,048			197,739			22,586			14,725			83,585			201,560			3,629			759			1,507
	(4	)		1,024			(1,145	)		(4,211	)		—			—			—			—			—			—			—
	12,907			(30,322	)		325,517			278,276			74,879			21,313			268,401			150,317			7,509			1,445			(848	)
	(6,383	)		(7,069	)		(103,593	)		(153,233	)		(28,602	)		(4,508	)		(119,601	)		(99,645	)		(2,579	)		—			—
	(1	)		—			(594	)		(541	)		—			—			(29	)		(8	)		—			—			—
	—			—			—			—			(3,238	)		—			(3,632	)		(11,445	)		(147	)		—			—
	—			—			—			—			—			—			(1	)		(1	)		—			—			—
	—			—			—			—			—			—			—			—			—			—			—
	—			—			—			—			—			—			—			—			—			—			—
	(6,384	)		(7,069	)		(104,187	)		(153,774	)		(31,840	)		(4,508	)		(123,263	)		(111,099	)		(2,726	)		—			—
	102,789			173,449			743,435			1,276,299			649,744			711,444			998,870			975,088			206,992			86,333			207,501
	5,926			6,549			96,256			143,816			30,458			4,323			103,955			99,105			2,541			—			—
	(211,761	)		(223,654	)		(1,175,131	)		(2,779,389	)		(523,255	)		(54,849	)		(1,034,815	)		(899,807	)		(56,959	)		(4,210	)		(15,598	)
	(103,046	)		(43,656	)		(335,440	)		(1,359,274	)		156,947			660,918			68,010			174,386			152,574			82,123			191,903
	16			28			8,103			8,717			—			—			1,773			158			—			—			—
	1			—			411			420			—			—			29			8			—			—			—
	(47	)		—			(6,049	)		(4,684	)		—			—			(198	)		(32	)		—			—			—
	(30	)		28			2,465			4,453			—			—			1,604			134			—			—			—
	(103,076	)		(43,628	)		(332,975	)		(1,354,821	)		156,947			660,918			69,614			174,520			152,574			82,123			191,903
	(96,553	)		(81,019	)		(111,645	)		(1,230,319	)		199,986			677,723			214,752			213,738			157,357			83,568			191,055
	233,792			314,811			2,464,404			3,694,723			677,723			—			1,290,164			1,076,426			83,568			—			—
$	137,239		$	233,792		$	2,352,759		$	2,464,404		$	877,709		$	677,723		$	1,504,916		$	1,290,164		$	240,925		$	83,568		$	191,055
$	791		$	2,316		$	(2,520	)	$	(3,504	)	$	99		$	3		$	8,158		$	3,195		$	12		$	665		$	—

SEI Institutional Managed Trust / Annual Report / September 30, 2010 147

Financial Highlights

For the years or periods ended September 30, (unless otherwise indicated)

For a Share Outstanding Throughout the Periods

	Net Asset Value, Beginning of Period		Net Investment Income (Loss)(1)			Net Realized and Unrealized Gains (Losses) on Securities(1)			Total from Operations			Dividends from Net Investment Income			Distributions from Realized Capital Gains			Total Dividends and Distributions			Net Asset Value, End of Period		Total Return†			Net Assets End of Period ($Thousands)		Ratio of Expenses to Average Net Assets			Ratio of Expenses to Average Net  Assets (Excluding Fees Paid Indirectly)			Ratio of Expenses to Average Net  Assets (Excluding Fees Paid Indirectly and Waivers)			Ratio of Net Investment Income (Loss) to Average Net  Assets			Portfolio Turnover Rate†
Large Cap Fund
Class A
2010(11)	$	10.00	$	0.10		$	0.80		$	0.90		$	(0.08	)	$	(0.05	)	$	(0.13	)	$	10.77		9.00	%	$	1,395,899		0.89	%		0.89	%		1.02	%		0.96	%		90	%
Large Cap Value Fund
Class A
2010	$	13.83	$	0.21		$	0.94		$	1.15		$	(0.23	)	$	—		$	(0.23	)	$	14.75		8.43	%	$	1,504,082		0.89	%		0.89	%		0.98	%		1.48	%		64	%
2009		15.79		0.30			(1.92	)		(1.62	)		(0.34	)		—			(0.34	)		13.83		(9.88	)		1,843,530		0.89			0.90			0.99			2.51			69
2008		23.97		0.40			(6.10	)		(5.70	)		(0.41	)		(2.07	)		(2.48	)		15.79		(25.95	)		2,381,011		0.88			0.88			0.97			2.09			53
2007		23.54		0.41			2.69			3.10			(0.41	)		(2.26	)		(2.67	)		23.97		13.91			3,616,120		0.86			0.86			0.97			1.74			36
2006		22.45		0.37			2.41			2.78			(0.37	)		(1.32	)		(1.69	)		23.54		13.42			3,762,101		0.86			0.87			0.97			1.67			58
Class I
2010	$	13.83	$	0.18		$	0.95		$	1.13		$	(0.20	)	$	—		$	(0.20	)	$	14.76		8.23	%	$	10,358		1.11	%		1.11	%		1.24	%		1.25	%		64	%
2009		15.78		0.26			(1.90	)		(1.64	)		(0.31	)		—			(0.31	)		13.83		(10.05	)		11,433		1.11			1.12			1.24			2.19			69
2008		23.95		0.36			(6.11	)		(5.75	)		(0.35	)		(2.07	)		(2.42	)		15.78		(26.13	)		10,861		1.11			1.11			1.22			1.85			53
2007		23.52		0.35			2.69			3.04			(0.35	)		(2.26	)		(2.61	)		23.95		13.64			29,072		1.11			1.11			1.22			1.49			36
2006		22.43		0.31			2.42			2.73			(0.32	)		(1.32	)		(1.64	)		23.52		13.16			31,308		1.11			1.12			1.22			1.40			58
Large Cap Growth Fund
Class A
2010	$	17.62	$	0.12		$	2.04		$	2.16		$	(0.12	)	$	—		$	(0.12	)	$	19.66		12.29	%	$	1,602,130		0.89	%		0.89	%		1.03	%		0.63	%		83	%
2009		18.39		0.11			(0.77	)		(0.66	)		(0.11	)		—			(0.11	)		17.62		(3.47	)		2,034,096		0.89			0.90			1.04			0.74			96
2008		23.74		0.08			(5.35	)		(5.27	)		(0.08	)		—			(0.08	)		18.39		(22.26	)		2,472,052		0.88			0.88			1.02			0.37			78
2007		19.95		0.06			3.78			3.84			(0.05	)		—			(0.05	)		23.74		19.26			3,622,963		0.86			0.86			1.02			0.26			55
2006		19.23		0.04			0.71			0.75			(0.03	)		—			(0.03	)		19.95		3.92			3,387,749		0.86			0.87			1.02			0.18			89
Class I
2010	$	17.44	$	0.08		$	2.02		$	2.10		$	(0.07	)	$	—		$	(0.07	)	$	19.47		12.06	%	$	7,953		1.11	%		1.11	%		1.28	%		0.41	%		83	%
2009		18.20		0.07			(0.76	)		(0.69	)		(0.07	)		—			(0.07	)		17.44		(3.69	)		9,153		1.11			1.12			1.29			0.51			96
2008		23.48		0.03			(5.29	)		(5.26	)		(0.02	)		—			(0.02	)		18.20		(22.43	)		7,695		1.11			1.11			1.27			0.13			78
2007		19.75		—	*		3.73			3.73			—	*		—			—			23.48		18.91			25,196		1.11			1.11			1.27			0.01			55
2006		19.04		(0.01	)		0.72			0.71			—			—			—			19.75		3.73			27,780		1.11			1.12			1.27			(0.07	)		89
Tax-Managed Large Cap Fund
Class A
2010	$	10.19	$	0.10		$	0.84		$	0.94		$	(0.11	)	$	—		$	(0.11	)	$	11.02		9.26	%	$	1,534,797		0.89	%		0.89	%		1.04	%		0.95	%		58	%
2009		11.08		0.13			(0.87	)		(0.74	)		(0.15	)		—			(0.15	)		10.19		(6.44	)		1,596,020		0.89			0.90			1.04			1.54			67
2008		14.70		0.15			(3.62	)		(3.47	)		(0.15	)		—			(0.15	)		11.08		(23.76	)		2,148,949		0.88			0.88			1.02			1.13			61
2007		12.68		0.14			2.01			2.15			(0.13	)		—			(0.13	)		14.70		17.05			2,892,866		0.86			0.86			1.02			1.02			44
2006		11.78		0.11			0.90			1.01			(0.11	)		—			(0.11	)		12.68		8.58			2,373,507		0.86			0.87			1.02			0.91			65
Class Y
2010	$	10.37	$	0.01		$	0.97		$	0.98		$	(0.11	)	$	—		$	(0.11	)	$	11.24		9.54	%	$	2,980		0.56	%		0.56	%		0.74	%		1.28	%		58	%
2009		11.24		0.16			(0.88	)		(0.72	)		(0.15	)		—			(0.15	)		10.37		(6.12	)		3,094		0.56			0.57			0.74			1.85			67
2008		14.87		0.19			(3.66	)		(3.47	)		(0.16	)		—			(0.16	)		11.24		(23.52	)		3,220		0.56			0.56			0.72			1.44			61
2007		12.79		0.18			2.04			2.22			(0.14	)		—			(0.14	)		14.87		17.43			4,711		0.56			0.56			0.72			1.32			44
2006		11.86		0.15			0.89			1.04			(0.11	)		—			(0.11	)		12.79		8.83			4,558		0.56			0.57			0.72			1.21			65

148 SEI Institutional Managed Trust / Annual Report / September 30, 2010

	Net Asset Value, Beginning of Period		Net Investment Income (Loss)(1)			Net Realized and Unrealized Gains (Losses) on Securities(1)			Total from Operations			Dividends from Net Investment Income			Distributions from Realized Capital Gains			Total Dividends, Distributions and Return of Capital			Net Asset Value, End of Period		Total Return†			Net Assets End of Period ($Thousands)		Ratio of Expenses to Average Net Assets			Ratio of Expenses to Average Net Assets (Excluding Fees Paid Indirectly)			Ratio of Expenses to Average Net Assets (Excluding Fees Paid Indirectly and Waivers)			Ratio of Net Investment Income (Loss) to Average Net  Assets			Portfolio Turnover Rate†
S&P 500 Index Fund
Class A
2010	$	29.01	$	0.56		$	2.29		$	2.85		$	(0.56	)	$	—		$	(0.56	)	$	31.30		9.93	%	$	325,796		0.43	%		0.43	%		0.54	%		1.85	%		20	%
2009		32.43		0.57			(3.12	)		(2.55	)		(0.61	)		(0.26	)		(0.87	)		29.01		(7.33	)		451,069		0.43			0.43			0.55			2.31			29
2008		44.71		0.68			(10.10	)		(9.42	)		(0.70	)		(2.16	)		(2.86	)		32.43		(22.30	)		462,947		0.41			0.41			0.53			1.77			27
2007(4)		41.45		0.34			3.09			3.43			(0.17	)		—			(0.17	)		44.71		8.28			650,792		0.40			0.40			0.43			1.55			2
2007(5)		38.38		0.63			3.70			4.33			(0.68	)		(0.58	)		(1.26	)		41.45		11.38			621,898		0.40			0.40			0.43			1.59			6
2006(5)		36.21		0.56			3.47			4.03			(0.54	)		(1.32	)		(1.86	)		38.38		11.32			614,246		0.40			0.40			0.43			1.49			18
Class E
2010	$	29.12	$	0.61		$	2.29		$	2.90		$	(0.60	)	$	—		$	(0.60	)	$	31.42		10.10	%	$	1,046,410		0.25	%		0.25	%		0.29	%		2.02	%		20	%
2009		32.54		0.61			(3.12	)		(2.51	)		(0.65	)		(0.26	)		(0.91	)		29.12		(7.16	)		855,876		0.25			0.25			0.30			2.44			29
2008		44.85		0.75			(10.14	)		(9.39	)		(0.76	)		(2.16	)		(2.92	)		32.54		(22.19	)		805,606		0.25			0.25			0.53			1.95			27
2007(4)		41.57		0.30			3.17			3.47			(0.19	)		—			(0.19	)		44.85		8.34			1,072,141		0.25			0.25			0.53			1.70			2
2007(5)		38.48		0.69			3.72			4.41			(0.74	)		(0.58	)		(1.32	)		41.57		11.57			1,127,189		0.25			0.25			0.53			1.74			6
2006(5)		36.31		0.62			3.48			4.10			(0.61	)		(1.32	)		(1.93	)		38.48		11.49			1,684,857		0.25			0.25			0.53			1.65			18
Class I
2010	$	29.07	$	0.49		$	2.29		$	2.78		$	(0.48	)	$	—		$	(0.48	)	$	31.37		9.66	%	$	8,341		0.65	%		0.65	%		0.79	%		1.63	%		20	%
2009		32.47		0.51			(3.12	)		(2.61	)		(0.53	)		(0.26	)		(0.79	)		29.07		(7.53	)		8,566		0.65			0.65			0.80			2.07			29
2008		44.74		0.60			(10.12	)		(9.52	)		(0.59	)		(2.16	)		(2.75	)		32.47		(22.49	)		5,498		0.65			0.65			0.78			1.53			27
2007(4)		41.51		0.28			3.09			3.37			(0.14	)		—			(0.14	)		44.74		8.12			13,233		0.65			0.65			0.78			1.29			2
2007(5)		38.43		0.53			3.71			4.24			(0.58	)		(0.58	)		(1.16	)		41.51		11.12			14,346		0.65			0.65			0.78			1.34			6
2006(5)		36.26		0.47			3.46			3.93			(0.44	)		(1.32	)		(1.76	)		38.43		11.02			13,144		0.65			0.65			0.78			1.25			18
Small Cap Fund
Class A
2010(11)	$	10.00	$	0.01		$	1.15		$	1.16		$	(0.01	)	$	(0.01	)	$	(0.02	)	$	11.14		11.64	%	$	223,978		1.14	%		1.14	%		1.29	%		0.10	%		115	%
Small Cap Value Fund
Class A
2010	$	13.66	$	0.07		$	1.82		$	1.89		$	(0.10	)	$	—		$	(0.10	)	$	15.45		13.93	%	$	535,938		1.14	%		1.15	%		1.29	%		0.46	%		69	%
2009		15.38		0.11			(1.62	)		(1.51	)		(0.13	)		(0.08	)		(0.21	)		13.66		(9.31	)		638,341		1.14			1.16			1.29			1.03			110
2008		21.26		0.09			(3.22	)		(3.13	)		(0.07	)		(2.68	)		(2.75	)		15.38		(16.02	)		846,492		1.13			1.15			1.28			0.55			91
2007		21.28		0.04			2.23			2.27			(0.14	)		(2.15	)		(2.29	)		21.26		10.70			1,122,027		1.11			1.13			1.27			0.19			86
2006		21.58		0.05			1.97			2.02			(0.06	)		(2.26	)		(2.32	)		21.28		10.34			1,160,178		1.11			1.13			1.27			0.31			72
Class I
2010	$	13.56	$	0.04		$	1.81		$	1.85		$	(0.07	)	$	—		$	(0.07	)	$	15.34		13.73	%	$	6,933		1.36	%		1.37	%		1.54	%		0.25	%		69	%
2009		15.29		0.08			(1.62	)		(1.54	)		(0.11	)		(0.08	)		(0.19	)		13.56		(9.59	)		7,389		1.36			1.38			1.54			0.77			110
2008		21.17		0.05			(3.21	)		(3.16	)		(0.04	)		(2.68	)		(2.72	)		15.29		(16.21	)		8,395		1.36			1.39			1.53			0.31			91
2007		21.21		(0.01	)		2.21			2.20			(0.09	)		(2.15	)		(2.24	)		21.17		10.41			14,089		1.36			1.38			1.52			(0.04	)		86
2006		21.52		—			1.98			1.98			(0.03	)		(2.26	)		(2.29	)		21.21		10.11			14,293		1.36			1.38			1.52			0.06			72
Small Cap Growth Fund
Class A
2010	$	12.96	$	(0.03	)	$	1.76		$	1.73		$	—	(2)	$	—		$	—		$	14.69		13.36	%	$	380,910		1.11	%		1.11	%		1.29	%		(0.21	)%		99	%
2009		13.98		0.02			(1.04	)		(1.02	)		—	*		—			—			12.96		(7.27	)		478,405		1.11			1.12			1.29			0.17			163
2008		21.91		0.01			(6.22	)		(6.21	)		(0.01	)		(1.71	)		(1.72	)		13.98		(30.36	)		638,257		1.11			1.12			1.28			0.04			124
2007		18.56		(0.09	)		3.44			3.35			—			—			—			21.91		18.05			1,154,000		1.11			1.13			1.27			(0.43	)		135
2006		17.86		(0.07	)		0.77			0.70			—			—			—			18.56		3.92			1,111,329		1.11			1.13			1.27			(0.40	)		99
Class I
2010	$	12.68	$	(0.06	)	$	1.72		$	1.66		$	—		$	—		$	—		$	14.34		13.09	%	$	3,703		1.36	%		1.36	%		1.54	%		(0.45	)%		99	%
2009		13.71		(0.02	)		(1.01	)		(1.03	)		—			—			—			12.68		(7.51	)		3,975		1.36			1.37			1.55			(0.17	)		163
2008		21.57		(0.03	)		(6.12	)		(6.15	)		—			(1.71	)		(1.71	)		13.71		(30.57	)		3,368		1.36			1.37			1.53			(0.19	)		124
2007		18.32		(0.14	)		3.39			3.25			—			—			—			21.57		17.74			9,323		1.36			1.38			1.52			(0.67	)		135
2006		17.67		(0.12	)		0.77			0.65			—			—			—			18.32		3.68			11,910		1.36			1.38			1.52			(0.65	)		99
Tax-Managed Small Cap Fund
Class A
2010	$	9.42	$	0.03		$	1.39		$	1.42		$	(0.03	)	$	—		$	(0.03	)	$	10.81		15.05	%	$	300,343		1.11	%		1.13	%		1.29	%		0.30	%		75	%
2009		10.16		0.04			(0.73	)		(0.69	)		(0.05	)		—			(0.05	)		9.42		(6.62	)		262,464		1.11			1.15			1.30			0.50			136
2008		14.14		0.05			(3.19	)		(3.14	)		(0.04	)		(0.80	)		(0.84	)		10.16		(23.34	)		318,520		1.11			1.13			1.28			0.41			96
2007		13.10		0.04			2.00			2.04			(0.06	)		(0.94	)		(1.00	)		14.14		16.00			416,945		1.11			1.14			1.27			0.31			72
2006		13.13		0.01			0.68			0.69			—			(0.72	)		(0.72	)		13.10		5.50			314,333		1.11			1.14			1.27			0.09			73

SEI Institutional Managed Trust / Annual Report / September 30, 2010 149

Financial Highlights

For the years or periods ended September 30, (unless otherwise indicated)

For a Share Outstanding Throughout the Periods

	Net Asset Value, Beginning of Period		Net Investment Income(1)			Net Realized and Unrealized Gains (Losses) on Securities(1)			Total from Operations			Dividends from Net Investment Income			Distributions from Realized Capital Gains			Total Dividends, Distributions and Return of Capital			Net Asset Value, End of Period		Total Return†			Net Assets End of Period ($Thousands)		Ratio of Expenses to Average Net Assets			Ratio of Expenses to Average Net Assets (Excluding Fees Paid Indirectly)			Ratio of Expenses to Average Net Assets (Excluding Fees Paid Indirectly and Waivers)			Ratio of Net Investment Income to Average Net Assets			Portfolio Turnover Rate†
Mid-Cap Fund
Class A
2010	$	13.92	$	0.08		$	1.88		$	1.96		$	(0.08	)	$	—		$	(0.08	)	$	15.80		14.13	%	$	124,569		1.02	%		1.04	%		1.04	%		0.51	%		185	%
2009		14.87		0.11			(0.94	)		(0.83	)		(0.12	)		—			(0.12	)		13.92		(5.34	)		119,872		1.02			1.02			1.04			0.95			143
2008		22.22		0.11			(5.28	)		(5.17	)		(0.09	)		(2.09	)		(2.18	)		14.87		(25.45	)		126,509		1.02			1.02			1.03			0.58			126
2007		20.40		0.06			3.40			3.46			(0.10	)		(1.54	)		(1.64	)		22.22		17.51			183,287		1.01			1.01			1.02			0.26			176
2006		20.29		0.14			1.49			1.63			(0.12	)		(1.40	)		(1.52	)		20.40		8.50			90,208		1.01			1.01			1.03			0.67			135
Class I
2010	$	13.92	$	0.04		$	1.89		$	1.93		$	(0.04	)	$	—		$	(0.04	)	$	15.81		13.91	%	$	623		1.26	%		1.28	%		1.29	%		0.30	%		185	%
2009		14.86		0.05			(0.89	)		(0.84	)		(0.10	)		—			(0.10	)		13.92		(5.47	)		274		1.26			1.26			1.30			0.48			143
2008(6)		22.56		0.06			(5.63	)		(5.57	)		(0.04	)		(2.09	)		(2.13	)		14.86		(26.82	)		52		1.26			1.26			1.27			0.33			126
U.S. Managed Volatility Fund
Class A
2010	$	9.65	$	0.14		$	1.16		$	1.30		$	(0.14	)	$	—		$	(0.14	)	$	10.81		13.61	%	$	415,669		1.00	%		1.00	%		1.29	%		1.37	%		53	%
2009		11.25		0.13			(1.59	)		(1.46	)		(0.14	)		—			(0.14	)		9.65		(12.88	)		380,987		1.00			1.00			1.29			1.56			126
2008		13.45		0.10			(1.69	)		(1.59	)		(0.10	)		(0.51	)		(0.61	)		11.25		(12.38	)		458,668		1.00			1.00			1.27			0.85			85
2007		12.02		0.15			1.74			1.89			(0.14	)		(0.32	)		(0.46	)		13.45		16.09			585,858		1.04			1.04			1.27			1.19			112
2006		11.41		0.10			0.75			0.85			(0.09	)		(0.15	)		(0.24	)		12.02		7.64			303,523		1.11			1.11			1.27			0.91			133
Class I
2010	$	9.63	$	0.11		$	1.17		$	1.28		$	(0.12	)	$	—		$	(0.12	)	$	10.79		13.38	%	$	37		1.25	%		1.25	%		1.54	%		1.08	%		53	%
2009		11.24		0.12			(1.61	)		(1.49	)		(0.12	)		—			(0.12	)		9.63		(13.17	)		17		1.25			1.25			1.55			1.38			126
2008		13.43		0.09			(1.71	)		(1.62	)		(0.06	)		(0.51	)		(0.57	)		11.24		(12.58	)		6		1.25			1.25			1.57			0.71			85
2007(9)		13.54		0.01			(0.05	)		(0.04	)		(0.07	)		—			(0.07	)		13.43		(0.32	)		1		1.36			1.36			1.86			0.19			112
Global Managed Volatility Fund
Class A
2010	$	7.82	$	0.13		$	0.29		$	0.42		$	(0.03	)(2)	$	—		$	(0.03	)	$	8.21		5.37	%	$	330,526		1.11	%		1.11	%		1.31	%		1.62	%		91	%
2009		9.07		0.12			(1.37	)		(1.25	)		—			—			—			7.82		(13.78	)		213,773		1.13	(3)		1.13	(3)		1.35			1.59			155
2008		11.22		0.12			(1.92	)		(1.80	)		(0.18	)		(0.17	)		(0.35	)		9.07		(16.60	)		204,156		1.11			1.11			1.31			1.24			113
2007		10.37		0.17			0.85			1.02			(0.11	)		(0.06	)		(0.17	)		11.22		9.88			275,748		1.11			1.11			1.32			1.56			119
2006(7)		10.00		0.02			0.35			0.37			—			—			—			10.37		3.70			94,951		1.10			1.10			1.30			1.22			13
Class I
2010	$	7.76	$	0.16		$	0.25		$	0.41		$	(0.02	)(2)	$	—		$	(0.02	)	$	8.15		5.32	%	$	64		1.36	%		1.36	%		1.57	%		2.00	%		91	%
2009		9.02		0.11			(1.37	)		(1.26	)		—			—			—			7.76		(13.97	)		17		1.38	(3)		1.38	(3)		1.62			1.56			155
2008		11.20		0.14			(1.97	)		(1.83	)		(0.18	)		(0.17	)		(0.35	)		9.02		(16.86	)		10		1.36			1.36			1.56			1.49			113
2007(9)		11.45		0.01			(0.26	)		(0.25	)		—			—			—			11.20		(2.18	)		1		1.36			1.36			2.26			0.23			119
Tax-Managed Managed Volatility Fund
Class A
2010	$	8.14	$	0.12		$	1.10		$	1.22		$	(0.12	)	$	—		$	(0.12	)	$	9.24		15.17	%	$	236,402		1.00	%		1.00	%		1.29	%		1.39	%		28	%
2009		9.02		0.12			(0.88	)		(0.76	)		(0.12	)		—			(0.12	)		8.14		(8.28	)		172,265		1.00			1.00			1.29			1.69			94
2008(10)		10.00		0.10			(1.02	)		(0.92	)		(0.06	)		—			(0.06	)		9.02		(9.24	)		96,523		1.00			1.00			1.29			1.43			65
Real Estate Fund
Class A
2010	$	9.42	$	0.05		$	2.46		$	2.51		$	(0.35	)(13)	$	—		$	(0.35	)	$	11.58		27.37	%	$	220,866		1.14	%		1.15	%		1.29	%		0.50	%		69	%
2009		13.73		0.16			(4.18	)		(4.02	)		(0.29	)(2)		—			(0.29	)		9.42		(28.69	)		221,228		1.14			1.15			1.29			2.08			97
2008		18.20		0.13			(3.11	)		(2.98	)		(0.38	)		(1.11	)		(1.49	)		13.73		(17.15	)		251,359		1.13			1.13			1.27			0.86			52
2007		18.43		0.30			0.76			1.06			(0.36	)		(0.93	)		(1.29	)		18.20		5.49			244,991		1.11			1.12			1.27			1.55			84
2006		14.86		0.23			4.15			4.38			(0.36	)		(0.45	)		(0.81	)		18.43		30.44			192,674		1.11			1.12			1.27			1.39			65
Class I
2010	$	9.41	$	—	*	$	2.49		$	2.49		$	(0.33	)(13)	$	—		$	(0.33	)	$	11.57		27.12	%	$	306		1.36	%		1.37	%		1.54	%		0.00	%		69	%
2009		13.72		0.09			(4.12	)		(4.03	)		(0.28	)(2)		—			(0.28	)		9.41		(28.83	)		132		1.36			1.37			1.55			1.26			97
2008(6)		18.55		0.13			(3.49	)		(3.36	)		(0.36	)		(1.11	)		(1.47	)		13.72		(18.89	)		25		1.36			1.36			1.52			0.86			52
Enhanced Income Fund
Class A
2010	$	7.21	$	0.18		$	0.30		$	0.48		$	(0.23	)	$	—		$	(0.23	)	$	7.46		6.78	%	$	137,223		0.60	%		0.60	%		1.06	%		2.45	%		77	%
2009		8.21		0.29			(1.09	)		(0.80	)		(0.20	)		—			(0.20	)		7.21		(9.56	)		233,747		0.60			0.60			1.06			4.30			132
2008		9.92		0.49			(1.68	)		(1.19	)		(0.52	)		—			(0.52	)		8.21		(12.42	)		314,795		0.60			0.60			1.04			5.40			42
2007		10.11		0.57			(0.27	)		0.30			(0.49	)		—			(0.49	)		9.92		2.96			620,931		0.60			0.60			1.03			5.67			43
2006(7)		10.00		0.10			0.01			0.11			—			—			—			10.11		1.10			235,981		0.60			0.60			1.10			5.54			70
Class I
2010	$	7.20	$	0.16		$	0.29		$	0.45		$	(0.20	)	$	—		$	(0.20	)	$	7.45		6.35	%	$	16		0.85	%		0.85	%		1.33	%		2.21	%		77	%
2009		8.20		0.25			(1.06	)		(0.81	)		(0.19	)		—			(0.19	)		7.20		(9.79	)		45		0.85			0.85			1.31			3.73			132
2008		9.91		0.43			(1.63	)		(1.20	)		(0.51	)		—			(0.51	)		8.20		(12.61	)		16		0.85			0.85			1.29			4.82			42
2007(9)		10.25		0.15			(0.35	)		(0.20	)		(0.14	)		—			(0.14	)		9.91		(2.01	)		11		1.09			1.09			1.56			5.78			43

150 SEI Institutional Managed Trust / Annual Report / September 30, 2010

	Net Asset Value, Beginning of Period		Net Investment Income (Loss)(1)			Net Realized and Unrealized Gains (Losses) on Securities(1)			Total from Operations			Dividends from Net Investment Income			Distributions from Realized Capital Gains			Total Dividends and Distributions			Net Asset Value, End of Period		Total Return†			Net Assets End of Period ($Thousands)		Ratio of Expenses to Average Net Assets			Ratio of Expenses to Average Net Assets (Excluding Fees Paid Indirectly)			Ratio of Expenses to Average Net Assets (Excluding Fees Paid Indirectly and Waivers)			Ratio of Net Investment Income to Average Net Assets			Portfolio Turnover Rate†
Core Fixed Income Fund
Class A
2010	$	9.98	$	0.44		$	0.95		$	1.39		$	(0.44	)	$	—		$	(0.44	)	$	10.93		14.25	%	$	2,335,314		0.67	%		0.67	%		0.85	%		4.20	%		283	%
2009		9.37		0.50			0.62			1.12			(0.51	)		—			(0.51	)		9.98		12.55			2,450,746		0.67			0.67			0.86			5.42			329
2008		10.19		0.51			(0.82	)		(0.31	)		(0.51	)		—			(0.51	)		9.37		(3.25	)		3,686,633		0.66			0.66			0.84			5.12			335
2007		10.29		0.50			(0.10	)		0.40			(0.50	)		—			(0.50	)		10.19		4.00			4,600,629		0.64			0.64			0.84			4.89			413
2006		10.44		0.47			(0.11	)		0.36			(0.48	)		(0.03	)		(0.51	)		10.29		3.60			4,293,309		0.63			0.63			0.84			4.62			478
Class I
2010	$	9.97	$	0.41		$	0.96		$	1.37		$	(0.42	)	$	—		$	(0.42	)	$	10.92		14.01	%	$	17,445		0.89	%		0.89	%		1.10	%		3.96	%		283	%
2009		9.36		0.48			0.62			1.10			(0.49	)		—			(0.49	)		9.97		12.32			13,658		0.89			0.89			1.11			5.21			329
2008		10.19		0.49			(0.84	)		(0.35	)		(0.48	)		—			(0.48	)		9.36		(3.58	)		8,090		0.90			0.90			1.09			4.87			335
2007		10.29		0.41			(0.03	)		0.38			(0.48	)		—			(0.48	)		10.19		3.74			12,890		0.89			0.89			1.09			3.96			413
2006		10.43		0.45			(0.11	)		0.34			(0.45	)		(0.03	)		(0.48	)		10.29		3.44			14,035		0.88			0.88			1.09			4.37			478
U.S. Fixed Income Fund
Class A
2010	$	10.28	$	0.33		$	0.60		$	0.93		$	(0.36	)	$	(0.04	)	$	(0.40	)	$	10.81		9.22	%	$	877,709		0.66	%		0.66	%		0.86	%		3.12	%		299	%
2009(8)		10.00		0.08			0.27			0.35			(0.07	)		—			(0.07	)		10.28		3.55			677,723		0.66			0.66			0.87			3.23			51
High Yield Bond Fund
Class A
2010	$	6.52	$	0.64		$	0.74		$	1.38		$	(0.61	)	$	(0.02	)	$	(0.63	)	$	7.27		21.98	%	$	1,503,070		0.89	%		0.89	%		1.13	%		9.22	%		113	%
2009		6.57		0.60			(0.02	)		0.58			(0.56	)		(0.07	)		(0.63	)		6.52		11.88			1,289,964		0.89			0.89			1.15			11.03			98
2008		8.26		0.66			(1.60	)		(0.94	)		(0.66	)		(0.09	)		(0.75	)		6.57		(12.09	)		1,076,379		0.88			0.88			1.13			8.73			69
2007		8.38		0.67			(0.11	)		0.56			(0.68	)		—			(0.68	)		8.26		6.72			1,247,613		0.86			0.86			1.12			7.89			91
2006		8.50		0.65			(0.12	)		0.53			(0.65	)		—			(0.65	)		8.38		6.51			1,068,711		0.86			0.86			1.12			7.69			126
Class I
2010	$	6.53	$	0.63		$	0.74		$	1.37		$	(0.60	)	$	(0.02	)	$	(0.62	)	$	7.28		21.76	%	$	1,846		1.11	%		1.11	%		1.40	%		8.96	%		113	%
2009		6.58		0.58			(0.01	)		0.57			(0.55	)		(0.07	)		(0.62	)		6.53		11.65			200		1.11			1.11			1.40			10.45			98
2008(6)		8.26		0.66			(1.61	)		(0.95	)		(0.64	)		(0.09	)		(0.73	)		6.58		(12.20	)		47		1.11			1.11			1.38			8.96			69
Real Return Fund
Class A
2010	$	10.19	$	0.12		$	0.40		$	0.52		$	(0.19	)	$	(0.01	)	$	(0.20	)	$	10.51		5.20	%	$	240,925		0.45	%		0.45	%		0.86	%		1.18	%		94	%
2009(8)		10.00		0.10			0.09			0.19			—			—			—			10.19		1.90			83,568		0.45			0.45			0.88			4.11			23
Multi-Strategy Alternative Fund
Class A
2010(12)	$	10.00	$	(0.02	)	$	(0.05	)	$	(0.07	)	$	—		$	—		$	—		$	9.93		(0.70	)%	$	191,055		0.50	%		0.50	%		2.19	%		(0.42	)%		49	%

† Returns and turnover rates are for the period indicated and have not been annualized.

* Amount represents less than $0.01.

(1) Per share net investment income and net realized and unrealized gains/(losses) calculated using average shares.

(2) Includes return of capital of less than $0.01.

(3) The expense ratios include overdraft fees. Had these fees been excluded the ratios would have been 1.11% and 1.36% for Class A and Class I, respectively.

(4) For the six months ended September 30, 2007. The Fund’s fiscal year end changed from March 31 to September 30. All ratios for the period have been annualized.

(5) For the year or period ended March 31.

(6) Commenced operations on October 1, 2007. All ratios for the period have been annualized.

(7) Commenced operations on July 27, 2006. All ratios for the period have been annualized.

(8) Commenced operations on July 2, 2009. All ratios for the period have been annualized.

(9) Commenced operations on June 29, 2007. All ratios for the period have been annualized.

(10) Commenced operations on December 20, 2007. All ratios for the period have been annualized.

(11) Commenced operations on October 1, 2009. All ratios for the period have been annualized.

(12) Commenced operations on March 31, 2010. All ratios for the period have been annualized.

(13) Includes return of capital of $0.10.

Amounts designated as “—” are $0 or have been rounded to $0.

The accompanying notes are an integral part of the financial statements.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 151

Notes to Financial Statements

September 30, 2010

1. ORGANIZATION

SEI Institutional Managed Trust (the “Trust”) is organized as a Massachusetts business trust under a Declaration of Trust dated October 20, 1986.

The Trust is registered under the Investment Company Act of 1940, as amended, as an open-end investment company with 21 funds: Large Cap, Large Cap Value, Large Cap Growth, Tax-Managed Large Cap, S&P 500 Index, Small Cap, Small Cap Value, Small Cap Growth, Tax-Managed Small Cap, Mid-Cap, U.S. Managed Volatility, Global Managed Volatility, Tax-Managed Managed Volatility, Real Estate, Enhanced Income, Core Fixed Income, U.S. Fixed Income, High Yield Bond, Real Return, Prime Obligation and Multi-Strategy Alternative Funds (each a “Fund,” collectively the “Funds”) each of which are Diversified Funds, with the exception of the Real Estate Fund. The Trust is registered to offer: Class A shares of the Funds; Class E shares of the S&P 500 Fund; Class G shares of the Large Cap, Large Cap Value, Large Cap Growth, Tax-Managed, Large Cap, Small Cap, Small Cap Value, Small Cap Growth, Tax-Managed Small Cap, Mid-Cap, U.S. Managed Volatility, Global Managed Volatility, Tax-Managed Managed Volatility, Real Estate, Enhanced Income, Core Fixed Income, U.S. Fixed Income, High Yield Bond and Real Return Funds; Class I shares of the Large Cap, Large Cap Value, Large Cap Growth, S&P 500 Index, Small Cap, Small Cap Value, Small Cap Growth, Mid-Cap, U.S. Managed Volatility, Global Managed Volatility, Real Estate, Enhanced Income, Core Fixed Income, U.S. Fixed Income, High Yield Bond and Real Return Funds; and Class Y shares of the Tax-Managed Large Cap Fund. The assets of each Fund are segregated, and a shareholder’s interest is limited to the Fund in which shares are held. The Funds’ prospectuses provide a description of each Fund’s investment objective and strategies.

As of September 30, 2010, the Prime Obligation Fund and the Class G shares had not yet commenced operations.

2. SIGNIFICANT ACCOUNTING POLICIES

The following is a summary of the significant accounting policies followed by the Funds.

Use of Estimates — The preparation of financial statements, in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates.

Security Valuation — Securities listed on a securities exchange, market or automated quotation system for which quotations are readily available (except for securities traded on NASDAQ) are valued at the last quoted sale price on the primary exchange or market (foreign or domestic) on which they are traded, or, if there is no such reported sale, at the most recent quoted bid price. For securities traded on NASDAQ, the NASDAQ Official Closing Price will be used. If available,

debt securities are priced based upon valuations provided by independent, third-party pricing agents. Such values generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations, or other methodologies designed to identify the market value for such securities. Debt obligations with remaining maturities of sixty days or less may be valued at their amortized cost, which approximates market value. Prices for most securities held in the Funds are provided daily by recognized independent pricing agents. If a security price cannot be obtained from an independent, third-party pricing agent, the Funds seek to obtain a bid price from at least one independent broker.

Securities for which market prices are not “readily available” are valued in accordance with Fair Value Procedures established by the Trust’s Board of Trustees. The Trust’s Fair Value Procedures are implemented through a Fair Value Committee (the “Committee”) designated by the Trust’s Board of Trustees. Some of the more common reasons that may necessitate that a security be valued using Fair Value Procedures include: the security’s trading has been halted or suspended; the security has been de-listed from a national exchange; the security’s primary trading market is temporarily closed at a time when, under normal conditions, it would be open; or the security’s primary pricing source is not able or willing to provide a price. When a security is valued in accordance with the Fair Value Procedures, the Committee will determine the value after taking into consideration relevant information reasonably available to the Committee.

For securities that principally trade on a foreign market or exchange, a significant gap in time can exist between the time of a particular security’s last trade and the time at which a Fund calculates its net asset value. The closing prices of such securities may no longer reflect their market value at the time a Fund calculates net asset value if an event that could materially affect the value of those securities (a “Significant Event”) has occurred between the time of the security’s last close and the time that a Fund calculates net asset value. A Significant Event may relate to a single issuer or to an entire market sector. If the adviser or sub-adviser of a Fund becomes aware of a Significant Event that has occurred with respect to a security or group of securities after the closing of the exchange or market on which the security or securities principally trade, but before the time at which a Fund calculates net asset value, it may request that a Committee meeting be called. In addition, the Trust’s administrator monitors price movements among certain selected indices, securities and/or baskets of securities that may be an indicator that the closing prices received earlier from foreign exchanges or markets may not reflect market value at the time a Fund calculates net asset value. If price movements in a monitored index or security exceed levels established by the administrator, the administrator notifies the adviser or sub-adviser for any Fund holding the relevant securities that such limits have been exceeded. In such event, the adviser or sub-adviser makes the determination whether a Committee meeting should be called based on the information provided.

152 SEI Institutional Managed Trust / Annual Report / September 30, 2010

The Global Managed Fund also uses a third-party fair valuation vendor. The vendor provides a fair value for foreign securities held by the Fund based on certain factors and methodologies (involving, generally, tracking valuation correlations between the U.S. market and each non-U.S. security). Values from the fair value vendor are applied in the event that there is a movement in the U.S. market that exceeds a specific threshold that has been established by the Committee. The Committee has also established a “confidence interval” which is used to determine the level of historical correlation between the value of a specific foreign security and movements in the U.S. market before a particular security will be fair valued when the threshold is exceeded. In the event that the threshold established by the Committee is exceeded on a specific day, the Global Managed Fund will value the non-U.S. securities in its portfolio that exceed the applicable “confidence interval” based upon the adjusted prices provided by the fair valuation vendor.

Options and warrants for which the primary market is a national securities exchange are valued at the last sale price on the exchange on which they are traded, or, in the absence of any sale, at the closing bid price. Options and warrants not traded on a national securities exchange are valued at the last quoted bid price.

The Assets of the Multi-Strategy Alternative Fund consist primarily of the investments in underlying registered investment companies, which are valued at their respective daily net assets in accordance with Board-approved pricing procedures.

In accordance with GAAP, Fair Value is defined as the price that a Fund would receive upon selling an investment in a timely transaction to an independent buyer in the principal or most advantageous market of the investment. A three-tier hierarchy has been established to maximize the use of observable and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing an asset. Inputs may be observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability based on the best information available in the circumstances.

The three-tier hierarchy of inputs is summarized in the three broad Levels listed below:

Level 1 — quoted prices in active markets for identical investments

Level 2 — other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risks, etc.)

Level 3 — significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)

Debt securities are valued in accordance with the evaluated bid price supplied by the pricing service and generally categorized as Level 2 in the hierarchy. Other securities that are categorized as Level 2 in the

hierarchy include, but are not limited to, preferred stocks, bank loans, warrants, swaps and forward contracts. The Fund may use a systematic fair valuation model provided by an independent pricing service to value foreign equity securities in order to adjust for stale pricing, which may occur between the close of certain foreign exchanges and the NYSE. These are generally categorized as Level 2 in the hierarchy.

When independent prices are unavailable or unreliable, debt securities and swaps may be valued utilizing pricing matrices which consider similar factors that would be used by independent pricing services. These are generally categorized as Level 2 in the hierarchy but may be Level 3 depending on the circumstances. For certain collateralized debt obligations, corporate obligations, mortgage backed securities, auction rate preferred securities and loan participations where observable inputs are limited, assumptions about market activity and risk are used and are categorized as Level 3 in the hierarchy.

The Fund adopted Financial Accounting Standards Board — Accounting Standards Update “Fair Value Measurements and Disclosures” (the “Update”), effective September 30, 2010. This Update applies to the Fund’s disclosures about transfers in and out of Level 1 and Level 2 of the fair value hierarchy and the reasons for the transfers. Disclosures about the valuation techniques and inputs used to measure fair value for investments that fall in either Level 2 or Level 3 fair value hierarchy are summarized under the Level 2 and Level 3 categories listed above. There were no significant transfers between Level 1 and Level 2 of the fair value hierarchy during the period.

The valuation techniques used by the Funds to measure fair value during the year ended September 30, 2010 maximized the use of observable inputs and minimized the use of unobservable inputs.

For the year ended September 30, 2010, there have been no significant changes to the Trust’s fair valuation methodologies.

Security Transactions and Investment Income — Security transactions are recorded on the trade date. Costs used in determining net realized capital gains and losses on the sale of securities are on the basis of specific identification. Dividend income is recognized on the ex-dividend date, and interest income is recognized using the accrual basis of accounting. Income from payment-in-kind securities is recorded daily based on the effective interest method of accrual.

Distributions received on securities that represent a return of capital or capital gain are recorded as a reduction of cost of investments and/or as a realized gain. The Trust estimates the components of distributions received that may be considered nontaxable distributions or capital gain distributions.

Amortization and accretion is calculated using the scientific interest method, which approximates the effective interest method over the holding period of the security. Amortization of premiums and discounts is included in interest income.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 153

Notes to Financial Statements (Continued)

September 30, 2010

Repurchase Agreements — Securities pledged as collateral for repurchase agreements are held by each Fund’s custodian bank until the repurchase date of the repurchase agreement. The Funds also invest in tri-party repurchase agreements. Securities held as collateral for tri-party repurchase agreements are maintained by the broker’s custodian bank in a segregated account until the repurchase date of the repurchase agreement. Provisions of the repurchase agreements and the Trust’s policies require that the market value of the collateral, including accrued interest thereon, is sufficient in the event of default by the counterparty. If the counterparty defaults and the value of the collateral declines, or if the counterparty enters into an insolvency proceeding, realization of the collateral by the Funds may be delayed or limited.

Reverse Repurchase Agreements — To the extent consistent with its Investment Objective and Strategies, a Fund may issue reverse repurchase agreements. A reverse repurchase agreement involves the sale of portfolio assets together with an agreement to repurchase the same assets later at a fixed price. Additional assets are maintained in an account with the broker. The segregated assets may consist of cash, U.S. Government securities, or other liquid securities at least equal in value to the obligations under the reverse repurchase agreements. In the event the buyer of securities under a reverse repurchase agreement files for bankruptcy or becomes insolvent, a Fund’s use of the proceeds under the agreement may be restricted pending a determination by the other party, or its trustee or receiver, whether to enforce the obligation to repurchase the securities.

Expenses — Expenses that are directly related to a Fund are charged directly to that Fund. Other operating expenses of the Funds are prorated to the Funds on the basis of relative daily net assets.

Classes — Class-specific expenses are borne by that class of shares. Income, realized and unrealized gains/losses and non class-specific expenses are allocated to the respective class on the basis of relative daily net assets.

Foreign Currency Translation — The books and records of the Funds are maintained in U.S. dollars on the following basis:

(I) market value of investment securities, assets and liabilities at the current rate of exchange; and

(II) purchases and sales of investment securities, income and expenses at the relevant rates of exchange prevailing on the respective dates of such transactions.

The Funds do not isolate that portion of gains and losses on investments in equity securities that is due to changes in the foreign exchange rates from that which is due to changes in market prices of equity securities.

The Funds report certain foreign-currency-related transactions as components of realized gains for financial reporting purposes, whereas such components are treated as ordinary income for Federal income tax purposes.

Forward Foreign Currency Contracts — To the extent consistent with its Investment Objective and Strategies, a Fund may enter into forward foreign currency contracts as hedges against either specific transactions, fund positions or anticipated fund positions. To the extent consistent with its Investment Objective and Strategies, a Fund may also engage in currency transactions to enhance that Fund’s returns. All commitments are “marked-to-market” daily at the applicable foreign exchange rate, and any resulting unrealized gains or losses are recorded currently. The Funds realize gains and losses at the time forward contracts are extinguished. Unrealized gains or losses on outstanding positions in forward foreign currency contracts held at the close of the period are recognized as ordinary income or loss for Federal income tax purposes. The Funds could be exposed to risk if the counterparties to the contracts are unable to meet the terms of the contract and from unanticipated movements in the value of a foreign currency relative to the U.S. dollar. Finally, the risk exists that losses could exceed amounts disclosed on the Statements of Assets and Liabilities. Refer to each Fund’s Schedule of Investments or Summary Schedule of Investments for details regarding open forward foreign currency contracts as of September 30, 2010, if applicable.

Futures Contracts — All Funds, with the exception of the Real Estate, High Yield Bond, Real Return and Multi-Strategy Alternative Funds, utilized futures contracts during the year ended September 30, 2010. These Funds’ investments in futures contracts are designed to enable the Funds to more closely approximate the performance of their benchmark indices. To the extent consistent with its Investment Objective and Strategies, a Fund may use futures contracts for tactical hedging purposes as well as to enhance the Fund’s returns. In addition, fixed income funds will utilize futures contracts to help manage duration and yield curve exposure. Initial margin deposits of cash or securities are made upon entering into futures contracts. The contracts are marked to market daily and the resulting changes in value are accounted for as unrealized gains and losses. Variation margin payments are paid or received, depending upon whether unrealized gains or losses are incurred. When the contract is closed, the Funds record a realized gain or loss equal to the difference between the proceeds from (or cost of) the closing transaction and the amount invested in the contract.

Risks of entering into futures contracts include the possibility that there will be an imperfect price correlation between the futures and the underlying securities. Second, it is possible that a lack of liquidity for futures contracts could exist in the secondary market, resulting in an inability to close a position prior to its maturity date. Third, the futures contract involves the risk that the Fund could lose more than the original margin deposit required to initiate a futures transaction.

Finally, the risk exists that losses could exceed amounts disclosed on the Statements of Assets and Liabilities. Refer to each Fund’s Schedule of Investments or Summary Schedule of Investments for details regarding open futures contracts as of September 30, 2010, if applicable.

154 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Options/Swaptions Writing/Purchasing — To the extent consistent with its Investment Objective and Strategies, a Fund may invest in financial options/swaptions contracts for the purpose of hedging its existing fund securities, or securities that a Fund intends to purchase, against fluctuations in fair value caused by changes in prevailing market interest rates. To the extent consistent with its Investment Objective and Strategies, a Fund may also invest in financial option/swaption contracts to enhance the Fund’s returns. When a Fund writes or purchases an option/swaption, an amount equal to the premium received or paid by the Fund is recorded as a liability or an asset and is subsequently adjusted to the current market value of the option/swaption written or purchased. Premiums received or paid from writing or purchasing options/swaptions which expire unexercised are treated by the Fund on the expiration date as realized gains or losses. The difference between the premium and the amount paid or received on effecting a closing purchase or sale transaction, including brokerage commissions, is also treated as a realized gain or loss. If an option/swaption is exercised, the premium paid or received is added to the cost of the purchase or proceeds from the sale in determining whether the Fund has realized a gain or a loss on investment transactions.

The risk in writing a call option/swaption is that the Funds give up the opportunity for profit if the market price of the security increases. The risk in writing a put option/swaption is that the Funds may incur a loss if the market price of the security decreases and the option/swaption is exercised. The risk in purchasing an option/swaption is that the Funds pay a premium whether or not the option/swaption is exercised. The Funds also have the additional risk of being unable to enter into a closing transaction at an acceptable price if a liquid secondary market does not exist. Option/swaption contracts also involve the risk that they may not work as intended due to unanticipated developments in market conditions or other causes.

Finally, the risk exists that losses on written options could exceed amounts disclosed on the Statements of Assets and Liabilities. Refer to each Fund’s Schedule of Investments or Summary Schedule of Investments for details regarding open option/swaption contracts as of September 30, 2010, if applicable.

Securities Sold Short — As consistent with each Fund’s investment objective, a Fund may engage in short sales. Short sales are transactions under which a Fund sells a security it does not own. To complete such a transaction, the Fund must borrow the security to make delivery to the buyer. A Fund then is obligated to replace the security borrowed by purchasing the security at the market price at the time of the replacement. The price at such time may be more or less than the price at which the security was sold by a Fund. Until the security is replaced, a Fund is required to pay the lender amounts equal to any dividends or interest that accrue during the period of the loan. Dividends and interest are shown as an expense for financial reporting purposes. To borrow the security, a Fund also may be required to pay a premium, which would decrease proceeds of the security sold. The proceeds of the short sale are retained by the

broker, to the extent necessary to meet margin requirements, until the short position is closed out. A gain, limited to the price at which a Fund sold the security short, or a loss, unlimited in size, will be recognized upon the close of a short sale.

Until a Fund closes its short position or replaces the borrowed security, a Fund will: (a) maintain a segregated account containing cash or liquid securities at such a level that (i) the amount deposited in the account plus the amount deposited with the broker as collateral will equal the current value of the security sold short; and (ii) the amount deposited in the segregated account plus the amount deposited with the broker as collateral will not be less than the market value of the security at the time the security was sold short, or (b) otherwise cover the Fund’s short positions.

Swap Agreements — A Fund’s investments in swap contracts is mainly used as an efficient means to take and manage risk in the portfolio, including interest rate risk, credit risk and overall yield sensitivity. A swap agreement is a two-party contract under which an agreement is made to exchange returns from predetermined investments or instruments, including a particular interest rate, foreign currency, or “basket” of securities representing a particular index. Interest rate swaps involve the exchange by a Fund with another party of their respective commitments to pay or receive interest (e.g., an exchange of floating rate payments for fixed rate payments) with respect to a notional amount of principal. Credit-default swaps involve periodic payments by a Fund or counterparty based on a specified rate multiplied by a notional amount assigned to an underlying debt instrument or group of debt instruments in exchange for the assumption of credit risk on the same instruments. In the event of a credit event, usually in the form of a credit rating downgrade, the party receiving periodic payments (i.e. floating rate payer) must pay the other party (i.e. fixed rate payer) an amount equal to the recovery rate used to settle the contracts. The recovery rate is a function of how many credit default swap investors wish to deliver the security or receive the security. The recovery rate is determined through an auction process. Total return swaps allow an investor to benefit from the cash flow without ever actually owning the underlying security. The receiver must pay any decline in value to the payer at the end of the total return swap. However, the investor does not need to make a payment if there is no decline in price. Payments can be made on various indices, bonds (i.e. mortgage backed securities, bank debt and corporate), loans or commodities. The value of a total return swap is equal to the change in value of the underlying asset versus the accrued income payment based on LIBOR or some other form of indices on the notional amount. Interest rate swaps involve the exchange by a Fund with another party of their respective commitments to pay or receive interest (e.g., an exchange of floating rate payments for fixed rate payments) with respect to a notional amount of principal to manage a Fund’s exposure to interest rates. Payments received or made are recorded as realized gains or loss. A Fund could be exposed to credit or market risk due to unfavorable changes in the fluctuation of interest rates or if the counterparty defaults on its obligation to perform. Risk of

SEI Institutional Managed Trust / Annual Report / September 30, 2010 155

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September 30, 2010

loss may exceed amounts recognized on the statement of assets and liabilities. Interest rate swap contracts outstanding at period end, if any, are listed after a Fund’s portfolio. In connection with swap agreements securities may be set aside as collateral by a Fund’s custodian. A Fund may enter into swap agreements in order to, among other things, change the maturity or duration of the investment portfolio, to protect a Fund’s value from changes in interest rates, or to expose a Fund to a different security or market.

Swaps are marked-to-market daily based upon quotations from market makers and the resulting changes in market values, if any, are recorded as an unrealized gain or loss in the Statement of Operations. Net payments of interest are recorded as realized gains or losses.

Entering into swap agreements involves, to varying degrees, elements of credit and market risk in excess of the amounts recognized on the Statement of Assets and Liabilities. Such risks involve the possibility that there will be no liquid market for these agreements, that the counterparty to the agreement may default on its obligation to perform and that there may be unfavorable changes in the fluctuation of interest rates. Risks also arise from potential losses from adverse market movements.

This risk is mitigated by having a master netting arrangement between a Fund and the counterparty and by having the counterparty post collateral to cover a Fund’s exposure to the counterparty. See Note 3 for further details. Refer to each Fund’s Schedule of Investments or Summary Schedule of Investments for details regarding open swap agreements as of September 30, 2010, if applicable.

Delayed Delivery Transactions — To the extent consistent with its Investment Objective and Strategies, a Fund may purchase or sell securities on a when-issued or delayed delivery basis. These transactions involve a commitment by the Fund to purchase or sell securities for a predetermined price or yield, with payment and delivery taking place beyond the customary settlement period. When delayed delivery purchases are outstanding, the Fund will set aside liquid assets in an amount sufficient to meet the purchase price. When purchasing a security on a delayed delivery basis, the Fund assumes the rights and risks of ownership of the security, including the risk of price and yield fluctuations, and takes such fluctuations into account when determining its net asset value. The Fund may dispose of or renegotiate a delayed delivery transaction after it is entered into, and may sell when-issued securities before they are delivered, which may result in a capital gain or loss. When the Fund has sold a security on a delayed delivery basis, the Fund does not participate in future gains and losses with respect to the security.

Collateralized Debt Obligations — A Fund may invest in collateralized debt obligations (“CDOs”), which include collateralized loan obligations (“CLOs”) and other similarly structured securities. CLOs are a type of asset-backed securities. A CLO is a trust typically collateralized by a pool of loans, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. CDOs may charge management fees and administrative expenses.

For CDOs, the cashflows from the trust are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the “equity” tranche which bears the bulk of defaults from the bonds or loans in the trust and serves to protect the other, more senior tranches from default in all but the most severe circumstances. Since it is partially protected from defaults, a senior tranche from a CDO trust typically has a higher rating and lower yield than its underlying securities, and can be rated investment grade. Despite the protection from the equity tranche, CDO tranches can experience substantial losses due to actual defaults, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults, as well as aversion to CDO securities as a class.

The risks of an investment in a CDO depend largely on its Class and its collateral securities. Normally, CLOs and other CDOs are privately offered and sold, and thus, are not registered under the securities laws. As a result, investments in CDOs may be characterized by the Funds as illiquid securities; however, an active dealer market may exist for CDOs, allowing a CDO to qualify for Rule 144A transactions. In addition to the normal risks associated with fixed income securities (e.g., interest rate risk and default risk), CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) the Funds may invest in CDOs that are subordinate to other classes; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results.

Illiquid Securities — A security is considered illiquid if it cannot be sold or disposed of in the ordinary course of business within seven days or less for its approximate carrying value on the books of a Fund. Valuations of illiquid securities may differ significantly from the values that would have been used had an active market value for these securities existed.

156 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Restricted Securities — At September 30, 2010, the following Funds owned private placement investments that were purchased through private offerings or acquired through initial public offerings and cannot be sold without prior registration under the Securities Act of 1933 or pursuant to an exemption therefrom. In addition, the Funds have generally agreed to further restrictions on the disposition of certain holdings as set forth in various agreements entered into in connection with the purchase of these investments. These investments are valued at fair value as determined in accordance with the procedures approved by the Board of Trustees. The acquisition dates of these investments, the enforceable right to acquire these securities, along with their cost and values at September 30, 2010, were as follows:

	Number of Shares/ Face Amount ($ Thousands)		Acquisition Date		Right to Acquire Date		Cost ($ Thousands)		Market Value ($ Thousands)		% of Net Assets
Small Cap Fund
Scorpio Mining PIPE		20,800		10/06/09		10/06/09	$	19	$	19		0.01	%
Titanium Asset Management PIPE		2,000		10/06/09		10/06/09		8		6		0.00
							$	27	$	25		0.01	%
Small Cap Value Fund
Verde Realty PIPE		21,100		02/16/07		02/16/07	$	696	$	398		0.07	%
Small Cap Growth Fund
Rentech Warrant		19,400		04/20/07		04/20/07	$	—	$	—		—	%
Titanium Asset Management PIPE		140,900		06/14/07		06/14/07		845		403		0.10
Titanium Asset Management Warrants		147,800		08/06/07		08/06/07		—		—		—
Value Creation		145,600		08/10/06		08/10/06		1,491		142		0.04
							$	2,336	$	545		0.14	%
Real Estate Fund
Verde Realty PIPE		21,400		02/16/07		02/16/07	$	706	$	404		0.18	%
Enhanced Income Fund
JHT Holding, 2nd Lien	$	39		12/16/08		12/16/08	$	57	$	38		0.03	%
High Yield Bond Fund
Aventine Renewable Energy Holdings	$	986		02/25/10		02/25/10	$	919	$	1,035		0.07	%
Quebecore Media (Escrow Security)	$	1,915		09/24/09		09/24/09		—		115		0.01
VSS AHC, Cl A		38,453		10/08/09		10/08/09		485		459		0.03
							$	1,404	$	1,609		0.11	%

Dividends and Distributions to Shareholders — Dividends from net investment income are declared and paid to shareholders quarterly for the Large Cap, Large Cap Value, Large Cap Growth, Tax-Managed Large Cap, S&P 500 Index, Small Cap, Small Cap Value, Small Cap Growth, Tax-Managed Small Cap, Mid-Cap, U.S. Managed Volatility, Tax-Managed Managed Volatility, Real Estate, Enhanced Income and Real Return Funds; are declared and paid annually for the Global Managed Volatility and Multi-Strategy Alternative Funds; and declared daily and paid monthly for the Core Fixed Income, U.S. Fixed Income and High Yield Bond Funds. Any net realized capital gains on sales of securities are distributed to shareholders at least annually. Dividends and distributions are recorded on the ex-dividend date.

Investments in REITs — With respect to the Real Estate Fund, dividend income is recorded based on the income included in distributions received from the REIT investments using published REIT reclassifications including some management estimates when actual amounts are not available. Distributions received in excess of this estimated amount are recorded as a reduction of the cost of

investments or reclassified to capital gains. The actual amounts of income, return of capital, and capital gains are only determined by each REIT after its fiscal year-end, and may differ from the estimated amounts.

3. CREDIT DERIVATIVES

A Fund enters into credit default swaps to simulate long and short bond positions that are either unavailable or considered to be less attractively priced in the bond market. A Fund uses these swaps to reduce risk where a Fund has exposure to the issuer, or to take an active long or short position with respect to the likelihood of an event of default. The reference obligation of the swap can be a single issuer, a “basket” of issuers, or an index. The underlying referenced assets are corporate debt, sovereign debt and asset backed securities.

The buyer of a credit default swap is generally obligated to pay the seller a periodic stream of payments over the term of the contract in return for a contingent payment upon the occurrence of a credit event with respect to an underlying reference obligation. Generally, a credit event for corporate or sovereign reference obligations means bank-

SEI Institutional Managed Trust / Annual Report / September 30, 2010 157

Notes to Financial Statements (Continued)

September 30, 2010

ruptcy, failure to pay, obligation acceleration, repudiation/moratorium or restructuring. For credit default swaps on asset-backed securities, a credit event may be triggered by events such as failure to pay principal, maturity extension, rating downgrade or write-down.

If a Fund is a seller of protection, and a credit event occurs, as defined under the terms of that particular swap agreement, a Fund will generally either (i) pay to the buyer an amount equal to the notional amount of the swap and take delivery of the referenced obligation, other deliverable obligations, or underlying securities comprising a referenced index or (ii) pay a net settlement amount in the form of cash or securities equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising a referenced index.

If a Fund is a buyer of protection and a credit event occurs, as defined under the terms of that particular swap agreement, a Fund will either (i) receive from the seller of protection an amount equal to

the notional amount of the swap and deliver the referenced obligation, other deliverable obligations or underlying securities comprising the referenced index or (ii) receive a net settlement amount in the form of cash or securities equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. Recovery values are assumed by market makers considering either industry standard recovery rates or entity specific factors and considerations until a credit event occurs. If a credit event has occurred, the recovery value is determined by a facilitated auction whereby a minimum number of allowable broker bids, together with a specified valuation method, are used to calculate the settlement value.

Certain Funds are party to International Swap Dealers Association, Inc. Master Agreements (“ISDA Master Agreements”). These agreements are with select counterparties and they govern transactions, including certain over-the counter derivative and foreign exchange contracts, entered into by the Funds and the counterparty.

As of September 30, 2010, the Core Fixed Income Fund is the buyer (“receiving protection”) on a total notional amount of $46.6 million, and is the seller (“providing protection”) on a total notional amount of $5.3 million,. The notional amounts of the swaps are not recorded in the financial statements. The notional amounts approximate the maximum potential amount of future payments that the Fund could be required to make if the Fund was the seller of protection and a credit event was to occur. Those credit default swaps (“CDS”) for which the Fund is providing protection at the balance sheet date are summarized as follows:

CORE FIXED INCOME FUND WRITTEN CREDIT DERIVATIVE CONTRACTS	SINGLE NAME CDS				CDS ON AN INDEX
REFERENCE ASSET	CORP US$		SOVEREIGN US$		ABS US$		CORP US$			Total
Fair value of written credit derivatives	$	66,081		—		—	$	(51,340	)	$	14,741
Maximum potential amount of future payments	$	4,280,000		—		—	$	1,022,000		$	5,302,000
Recourse provisions with third parties to recover any amounts paid under the credit derivative (including any purchased credit protection)1		—		—		—		—			—
Collateral held by the fund can obtain upon occurrence of triggering event		—		—		—		—			—

1 Potential recoveries would include purchased credit derivatives to the extent they offset written credit derivatives which have an identical underlying, or a netting arrangement or credit support annex with the counterparty. There may be other potential recoveries from recourse provisions where agreements cover multiple derivative arrangements but those amounts have not been included.

MAXIMUM POTENTIAL AMOUNT OF FUTURE PAYMENTS BY CONTRACT TERM
CORE FIXED INCOME FUND	0-6 MONTHS		6-12 MONTHS		1-5 YEARS		5-10 YEARS		> 10 YEARS		Total
Current credit spread* on underlying (in basis points)
0-100	$	2,800,000		—		—		—	$	522,000	$	3,322,000
> than 100		1,480,000		—		—		—	$	500,000	$	1,980,000
Total	$	4,280,000		—		—		—	$	1,022,000	$	5,302,000

* The credit spread on the underlying asset is generally indicative of the current status of the underlying risk of the Fund having to perform. The spread also reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into a contract. Higher credit spreads with a shorter contract term is indicative of a higher likelihood of performance by the Fund.

The credit spread disclosed above for each reference obligation where the Fund is the seller of protection is a representation of the current payment/performance risk of the swap.

4. DERIVATIVE TRANSACTIONS

The following tables include only Funds that had exposure to more than one type of risk on derivatives held throughout the year. For Funds that held derivatives throughout the year with only one type of risk exposure, additional information can be found on the Summary Schedule of Investments or Schedule of Investments and the Statement of Operations.

158 SEI Institutional Managed Trust / Annual Report / September 30, 2010

The fair value of derivative instruments as of September 30, 2010 was as follows:

	Asset Derivatives				Liability Derivatives
	Year ended September 30, 2010 ($ Thousands)				Year ended September 30, 2010 ($ Thousands)
	Statement of Assets and Liabilities Location	Fair Value			Statement of Assets and Liabilities Location	Fair Value
Derivatives not accounted for as hedging instruments:
Tax-Managed Small Cap Fund
Foreign exchange contracts	Unrealized gain on forward foreign currency contracts	$	9		Unrealized loss on forward foreign currency contracts	$	46
Equity contracts	Net Assets — Unrealized appreciation on futures contracts		374	*	Net Assets — Unrealized depreciation on futures contracts		—
Total Derivatives not accounted for as hedging instruments		$	383			$	46
Global Managed Volatility Fund
Foreign exchange contracts	Unrealized gain on forward foreign currency contracts	$	80		Unrealized loss on forward foreign currency contracts	$	1,549
Equity contracts	Net Assets — Unrealized appreciation on futures contracts		190	*	Net Assets — Unrealized depreciation on futures contracts		47
Total Derivatives not accounted for as hedging instruments		$	270			$	1,596
Core Fixed Income Fund
Interest rate contracts	Net Assets — Unrealized appreciation on futures contracts	$	1,194	*	Net Assets — Unrealized depreciation on futures contracts	$	1,357	*
	Net Assets — Unrealized appreciation on swap contracts		—		Net Assets — Unrealized depreciation on swap contracts		3,249	†
	Investments, at value		—		Options written, at value		484
Foreign exchange contracts	Unrealized gain on forward foreign currency contracts		—		Unrealized loss on forward foreign currency contracts		828	*
Credit contracts	Net Assets — Unrealized appreciation on swap contracts		1,191	†	Net Assets — Unrealized depreciation on swap contracts		8,322	†
Total Derivatives not accounted for as hedging instruments		$	2,385			$	14,240
U.S. Fixed Income Fund
Interest rate contracts	Net Assets — Unrealized appreciation on futures contracts	$	8	*	Net Assets — Unrealized depreciation on futures contracts	$	108	*
	Investments, at value		—		Options written, at value		88
Credit contracts	Net Assets — Unrealized appreciation on swap contracts		—		Net Assets — Unrealized depreciation on swap contracts		1,063	†
Total Derivatives not accounted for as hedging instruments		$	8			$	1,259

* Includes cumulative appreciation/depreciation of futures contracts as reported in the Schedules of Investments. Only current day’s variation margin is reported within the Statements of Assets & Liabilities.

† Includes cumulative appreciation/depreciation of swap contracts as reported in the Schedules of Investments. Market Value is reported within the Statements of Assets & Liabilities for swap contracts that have paid premiums.

The effect of derivative instruments on the Statement of Operations for the year ended September 30, 2010.

Amount of Realized Gain or (Loss) on Derivatives Recognized in Income ($ Thousands)

Derivatives Not Accounted for as Hedging Instruments	Options		Swaptions		Futures		Forward Currency Contracts			Swaps			Total
Small Cap Value Fund
Equity contracts	$	—	$	—	$	1,540	$	—		$	—		$	1,540
Foreign exchange contracts		—		—		—		(8	)		—			(8	)
Total	$	—	$	—	$	1,540	$	(8	)	$	—		$	1,532
Global Managed Volatility Fund
Equity contracts	$	—	$	—	$	1,534	$	—		$	—		$	1,534
Foreign exchange contracts		—		—		—		(7,052	)		—			(7,052	)
Total	$	—	$	—	$	1,534	$	(7,052	)	$	—		$	(5,518	)
Core Fixed Income Fund
Interest rate contracts	$	395	$	911	$	13,399	$	—		$	(1,821	)	$	12,884
Credit contracts		—		—		—		—			(6,151	)		(6,151	)
Foreign exchange contracts		—		—		—		1,178			—			1,178
Total	$	395	$	911	$	13,399	$	1,178		$	(7,972	)	$	7,911

SEI Institutional Managed Trust / Annual Report / September 30, 2010 159

Notes to Financial Statements (Continued)

September 30, 2010

Derivatives Not Accounted for as Hedging Instruments:	Options		Swaptions		Futures			Forward Currency Contracts		Swaps			Total
U.S. Fixed Income Fund
Interest rate contracts	$	—	$	—	$	(420	)	$	—	$	—		$	(420	)
Credit contracts		—		—		—			—		(249	)		(249	)
Total	$	—	$	—	$	(420	)	$	—	$	(249	)	$	(669	)

Change in Unrealized Appreciation or (Depreciation) on Derivatives Recognized in Income ($ Thousands):

Derivatives Not Accounted for as Hedging Instruments:	Options			Swaptions			Futures			Forward Currency Contracts			Swaps			Total
Tax-Managed Small Cap Fund
Equity contracts	$	—		$	—		$	179		$	—		$	—		$	179
Foreign exchange contracts		—			—			—			(37	)		—			(37	)
Total	$	—		$	—		$	179		$	(37	)	$	—		$	142
Global Managed Volatility Fund
Equity contracts		—			—			44			—			—			44
Foreign exchange contracts	$	—		$	—		$	—		$	(606	)	$	—		$	(606	)
Total	$	—		$	—		$	44		$	(606	)	$	—		$	(562	)
Core Fixed Income Fund
Interest rate contracts	$	(2	)	$	(112	)		(2,463	)	$	—		$	(2,731	)	$	(5,308	)
Credit contracts		—			—			—			—			11,402			11,402
Foreign exchange contacts		—			—			—			(911	)		—			(911	)
Total	$	(2	)	$	(112	)	$	(2,463	)	$	(911	)	$	8,671		$	5,183
U.S. Fixed Income Fund
Interest rate contracts	$	(15	)	$	—		$	(100	)	$	—		$	—		$	(115	)
Credit contracts		—			—			—			—			(765	)		(765	)
Total	$	(15	)	$	—		$	(100	)	$	—		$	(765	)	$	(880	)

The ISDA Master Agreements maintain provisions for general obligations, representations, agreements, collateral, and events of default or termination. The occurrence of a specified event of termination may give a counterparty the right to terminate all of its contracts and affect settlement of all outstanding transactions under the applicable ISDA Master Agreement.

Written options transactions entered into during the year ended September 30, 2010 are summarized as follows:

	Core Fixed Income Fund
	Number of Contracts			Premium ($ Thousands)
Balance at the beginning of period		473		$	562
Written		2,859			1,396
Expired		(732	)		(260	)
Closing buys		(2,153	)		(1,297	)
Balance at the end of period		447		$	401

			U.S. Fixed Income Fund
	Number of Contracts		Premium ($ Thousands)
Balance at the beginning of period		—	$	—
Written		110		73
Expired		—		—
Closing buys		—		—
Balance at the end of period		110	$	73

Written swaptions transactions entered into during the year ended September 30, 2010 are summarized as follows:

	Core Fixed Income Fund
	Notional Amount (Thousands)			Premium ($ Thousands)
Balance at the beginning of period		64,020		$	2,471
Written		24,600			510
Expired		(26,040	)		(693	)
Closing buys		(62,580	)		(2,288	)
Balance at the end of period		—		$	—

At September 30, 2010 the Funds had cash and/or securities at least equal to the value of written options.

5. ADMINISTRATION, INVESTMENT ADVISORY AND DISTRIBUTION AGREEMENTS, AND OTHER TRANSACTIONS WITH AFFILIATES

Administration and Transfer Agency Agreement — The Trust and SEI Investments Global Funds Services (the “Administrator”) are parties to an amended and restated Administration and Transfer Agency Agreement dated December 10, 2003 under which the Administrator provides administrative and transfer agency services to the Funds for an annual fee of 0.35% of the average daily net assets of the Large Cap, Large Cap Value, Large Cap Growth, Tax-Managed Large Cap Class A, Small Cap, Small Cap Value, Small Cap Growth, Tax-Managed Small Cap, Mid-Cap, U.S. Managed Volatility, Global Managed Volatility, Tax-Managed Managed Volatility, Real Estate, Enhanced Income, High Yield Bond, Real Return and Multi-Strategy

160 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Alternative Funds; 0.15% of the average daily net assets of the Tax-Managed Large Cap Class Y; 0.22% of the average daily net assets of the S&P 500 Index Fund; and 0.28% of the average daily net assets of the Core Fixed Income and U.S. Fixed Income Funds. The Administrator has agreed voluntarily to waive all or a portion of its fee in order to limit the operating expenses of a Fund. Any such waiver is voluntary and may be terminated at any time at the Administrator’s sole discretion.

Investment Advisory Agreement — SEI Investments Management Corporation (“SIMC”) serves as investment adviser (the “Adviser”) to each Fund. In connection with serving as Adviser, SIMC is entitled to a fee, which is calculated daily and paid monthly, based on the average daily net assets of each Fund. SIMC has voluntarily agreed to waive a portion of its fee so that the total annual expenses of each Fund, exclusive of short sale expenses and acquired fund fee expenses, will not exceed certain voluntary expense limitations adopted by SIMC. These waivers may be terminated at any time. Accordingly, the advisory fee and voluntary expense limitations for each Fund are as follows:

	Advisory Fees			Voluntary Expense Limitations
Large Cap Fund, Class A		0.3900	%		0.8900	%
Large Cap Value Fund, Class A		0.3500			0.8900
Large Cap Value Fund, Class I		0.3500			1.1100
Large Cap Growth Fund, Class A		0.4000			0.8900
Large Cap Growth Fund, Class I		0.4000			1.1100
Tax-Managed Large Cap Fund, Class A		0.4000			0.8900
Tax-Managed Large Cap Fund, Class Y		0.4000			0.5600
S&P 500 Index Fund, Class A		0.0300			0.4300
S&P 500 Index Fund, Class E		0.0300			0.2500
S&P 500 Index Fund, Class I		0.0300			0.6500
Small Cap Fund, Class A		0.6500			1.1400
Small Cap Value Fund, Class A		0.6500			1.1400
Small Cap Value Fund, Class I		0.6500			1.3600
Small Cap Growth Fund, Class A		0.6500			1.1100
Small Cap Growth Fund, Class I		0.6500			1.3600
Tax-Managed Small Cap Fund, Class A		0.6500			1.1100
Mid-Cap Fund, Class A		0.4000			1.0200
Mid-Cap Fund, Class I		0.4000			1.2600
U.S. Managed Volatility Fund, Class A		0.6500			1.0000
U.S. Managed Volatility Fund, Class I		0.6500			1.2500
Global Managed Volatility Fund, Class A		0.6500			1.1100
Global Managed Volatility Fund, Class I		0.6500			1.3600
Tax-Managed Managed Volatility Fund, Class A		0.6500			1.0000
Real Estate Fund, Class A		0.6500			1.1400
Real Estate Fund, Class I		0.6500			1.3600
Enhanced Income Fund, Class A		0.4000			0.6000
Enhanced Income Fund, Class I		0.4000	%		0.8500	%
Core Fixed Income Fund, Class A		0.2750			0.6700
Core Fixed Income Fund, Class I		0.2750			0.8900
U.S. Fixed Income, Class A		0.2750			0.6600
High Yield Bond Fund, Class A		0.4875			0.8900
High Yield Bond Fund, Class I		0.4875			1.1100
Real Return, Class A		0.2200			0.4500
Multi-Strategy Alternative Fund, Class A		1.5000			0.5000

As of September 30, 2010, SIMC has entered into investment sub-advisory agreements with the following parties:

Investment Sub-Adviser

Large Cap Fund

Analytic Investors, LLC

Aronson+Johnson+Ortiz, L.P.

Brown Investment Advisory Incorporated

Delaware Management Company

Legg Mason Capital Management, Inc.

LSV Asset Management

Neuberger Berman Management, LLC

Quantitative Management Associates LLC

Large Cap Value Fund

Aronson + Johnson + Ortiz, LP

INTECH Investment Management, LLC

Lazard Asset Management LLC

Legg Mason Capital Management, Inc.

LSV Asset Management

Large Cap Growth Fund

Brown Investment Advisory Incorporated

Delaware Management Company

INTECH Investment Management, LLC

Legg Mason Capital Management Inc.

Neuberger Berman Management LLC

Tax-Managed Large Cap Fund

Aronson + Johnson + Ortiz, LP

Brown Investment Advisory Incorporated

Delaware Management Company

Legg Mason Capital Management Inc.

LSV Asset Management

Neuberger Berman Management LLC

Parametric Portfolio Associates

Quantitative Management Associates LLC

S&P 500 Index Fund

SSgA Funds Management, Inc.

Small Cap Fund

Allianz Global Investors Capital LLC

AQR Capital Management, LLC

Integrity Asset Management, LLC

Los Angeles Capital Management and Equity Research, Inc.

Robeco Investment Management, Inc.

Wellington Management Company, LLP

Small Cap Value Fund

Artisan Partners Limited Partnership

Lee Munder Capital Group, LLC

LSV Asset Management

Martingale Asset Management, L.P.

Robeco Investment Management, Inc.

Wellington Management Company, LLP

Small Cap Growth Fund

Allianz Global Investors Capital LLC

AQR Capital Management, LLC

Janus Capital Management, LLC

Lee Munder Capital Group, LLC

Los Angeles Capital Management and Equity Research, Inc.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 161

Notes to Financial Statements (Continued)

September 30, 2010

Investment Sub-Adviser

Tax-Managed Small Cap Fund

Century Capital Management, LLC

Lee Munder Capital Group, LLC

Los Angeles Capital Management and Equity Research, Inc.

LSV Asset Management

Parametric Portfolio Associates

Wellington Management Company, LLP

Wells Capital Management Inc.

Mid-Cap Fund

Lee Munder Capital Group, LLC

Quantitative Management Associates LLC

Wells Capital Management, Inc.

U.S. Managed Volatility Fund

Analytic Investors, LLC

Aronson + Johnson + Ortiz, LP

Global Managed Volatility Fund

Acadian Asset Management LLC

Analytic Investors, LLC

Tax-Managed Managed Volatility Fund

Analytic Investors LLC

Aronson + Johnson + Ortiz, LP

Parametric Portfolio Associates

Real Estate Fund

Security Capital Research and Management, Inc.

Wellington Management Company, LLP

Enhanced Income Fund

Ares Management LLC

Wellington Management Company, LLP

Core Fixed Income Fund

Jennison Associates LLC

J.P. Morgan Investment Management, Inc.

Metropolitan West Asset Management LLC

Wells Capital Management, Inc.

Western Asset Management Company

Western Asset Management Company Limited

U.S. Fixed Income Fund

Jennison Associates LLC

J.P. Morgan Investment Management, Inc.

Metropolitan West Asset Management LLC

Wells Capital Management, Inc.

Western Asset Management Company

Western Asset Management Company Limited

High Yield Bond Fund

Ares Management LLC

Brigade Capital Management, LLC

Delaware Management Company

Guggenheim Investment Management, LLC

J.P. Morgan Investment Management, Inc.

Real Return Fund

Wellington Management Company, LLP

Under the investment sub-advisory agreements, each party receives an annual fee paid by SIMC.

Distribution Agreement — SEI Investments Distribution Co. (the “Distributor”), a wholly owned subsidiary of SEI Investments Company (“SEI”), serves as each Fund’s Distributor pursuant to a distribution agreement with the Trust. The Trust has adopted a shareholder servicing plan for Class A, Class I and Class Y shares (the “Shareholder Servicing Plans”) under which a shareholder servicing fee of up to 0.25% of average daily net assets attributable to Class A and Class I shares, and a shareholder servicing fee of up to 0.15% of average daily net assets attributable to the Class Y shares, will be paid to the Distributor. In addition to the Shareholder Servicing Plans, the Class I shares have adopted administrative service plans that provide for administrative service fees payable to the Distributor of up to 0.25% of the average daily net assets attributed to that class.

Other — The Distribution Agreement between the Distributor and the Trust provides that the Distributor may receive compensation on fund transactions effected for the Trust in accordance with the rules of the Securities and Exchange Commission (“SEC”). Accordingly, it is expected that fund transactions may result in brokerage commissions being paid to the Distributor. SEC rules require that such commissions not exceed usual and customary commissions.

Such commissions for the year ended September 30, 2010 were as follows ($ Thousands):

Large Cap Fund	$	79
Large Cap Value Fund		246
Large Cap Growth Fund		165
Tax-Managed Large Cap Fund		132
S&P 500 Index Fund		54
Small Cap Fund		5
Small Cap Value Fund		153
Small Cap Growth Fund		36
Tax-Managed Small Cap Fund		81
Mid-Cap Fund		152
Real Estate Fund		16
	$	1,119

Under both the Shareholder Servicing Plans and administrative service plan, the Distributor may retain as profit any difference between the fee it receives and the amount it pays to third parties. For the year ended September 30, 2010, the Distributor retained 100% of the shareholder servicing fees, less the shareholder servicing fee waiver, and 100% of the administration servicing fees.

Payments to Affiliates — Certain officers and/or trustees of the Trust are also officers of the Administrator or the Distributor. The Trust pays each unaffiliated Trustee an annual fee for attendance at quarterly, interim and committee meetings. Compensation of officers and affiliated Trustees of the Trust is paid by the Administrator or Distributor.

A portion of the services provided by the Chief Compliance Officer (“CCO”) and his staff, whom are employees of the Administrator, are paid for by the Trust as incurred. The services include regulatory oversight of the Trust’s Adviser, sub-advisers and service providers as required by SEC regulations. The CCO’s services have been approved by and are reviewed annually by the Board.

162 SEI Institutional Managed Trust / Annual Report / September 30, 2010

LSV Asset Management (a partially owned subsidiary of SIMC) serves as the sub-adviser to the Large Cap, Large Cap Value, Tax-Managed Large Cap, Small Cap Value and Tax-Managed Small Cap Funds. For this service LSV Asset Management is entitled to receive a fee from SIMC. Such fees for the year ended September 30, 2010 were as follows ($ Thousands):

Large Cap Fund	$	214
Large Cap Value Fund		654
Tax-Managed Large Cap Fund		329
Small Cap Value Fund		594
Tax-Managed Small Cap Fund		184
	$	1,975

Fees Paid Indirectly — The Funds may direct certain fund trades to the Distributor who pays a portion of the Fund’s expenses. Accordingly, the expenses reduced, which were used to pay third party expenses, and the effect on the Fund’s expense ratio, as a percentage of the Fund’s average daily net assets for the year ended September 30, 2010, can be found on the Statement of Operations and Financial Highlights, respectively.

Investment in Affiliated Security — The Funds may invest excess cash in the SEI Daily Income Trust Prime Obligation Fund, an affiliated money market fund. Additionally, the Funds may invest the cash collateral from the securities lending program in the SEI Liquidity Fund, L.P.

6. CAPITAL SHARE TRANSACTIONS

Capital Share Transactions for the Funds were as follows (Thousands):

For the years or period ended September 30, 2010

	Large Cap Fund(1)			Large Cap Value Fund						Large Cap Growth Fund						Tax-Managed Large Cap Fund						S&P 500 Index Fund
	10/01/09 to 09/30/10			2010			2009			2010			2009			2010			2009			2010			2009
Class A:
Shares Issued		183,286			19,666			53,643			14,496			45,603			32,509			110,266			5,739			17,291
Shares Issued in Lieu of Cash Distributions		1,354			1,902			3,739			610			865			1,408			2,568			236			486
Shares Redeemed		(54,987	)		(52,909	)		(74,868	)		(49,047	)		(65,464	)		(51,272	)		(150,117	)		(11,115	)		(16,504	)
Total Class A Transactions		129,653			(31,341	)		(17,486	)		(33,941	)		(18,996	)		(17,355	)		(37,283	)		(5,140	)		1,273
Class E:
Shares Issued		—			—			—			—			—			—			—			8,945			11,627
Shares Issued in Lieu of Cash Distributions		—			—			—			—			—			—			—			587			865
Shares Redeemed		—			—			—			—			—			—			—			(5,625	)		(7,857	)
Total Class I Transactions		—			—			—			—			—			—			—			3,907			4,635
Class I:
Shares Issued		—			200			534			131			389			5			—			92			732
Shares Issued in Lieu of Cash Distributions		—			9			18			1			2			2			—			3			11
Shares Redeemed		—			(334	)		(413	)		(248	)		(289	)		(41	)		—			(124	)		(617	)
Total Class I Transactions		—			(125	)		139			(116	)		102			(34	)		—			(29	)		126
Class Y:
Shares Issued		—			—			—			—			—			—			44			—			—
Shares Issued in Lieu of Cash Distributions		—			—			—			—			—			—			6			—			—
Shares Redeemed		—			—			—			—			—			—			(37	)		—			—
Total Class Y Transactions		—			—			—			—			—			—			13			—			—
Increase (Decrease) in Share Transactions		129,653			(31,466	)		(17,347	)		(34,057	)		(18,894	)		(17,389	)		(37,270	)		(1,262	)		6,034

SEI Institutional Managed Trust / Annual Report / September 30, 2010 163

Notes to Financial Statements (Continued)

September 30, 2010

	Small Cap Fund(1)			Small Cap Value Fund						Small Cap Growth Fund						Tax-Managed Small Cap Fund						Mid-Cap Fund
	10/01/09 to 09/30/10			2010			2009			2010			2009			2010			2009			2010			2009
Class A:
Shares Issued		43,949			12,391			25,312			9,938			20,496			11,004			25,443			7,278			6,949
Shares Issued in Lieu of Cash Distributions		53			275			1,004			2			10			64			182			43			81
Shares Redeemed		(23,903	)		(24,708	)		(34,603	)		(20,925	)		(29,258	)		(11,156	)		(29,105	)		(8,052	)		(6,927	)
Total Class A Transactions		20,099			(12,042	)		(8,287	)		(10,985	)		(8,752	)		(88	)		(3,480	)		(731	)		103
Class I:
Shares Issued		—			147			303			99			236			—			—			42			33
Shares Issued in Lieu of Cash Distributions		—			2			11			—			—			—			—			—			—
Shares Redeemed		—			(242	)		(318	)		(154	)		(169	)		—			—			(23	)		(16	)
Total Class I Transactions		—			(93	)		(4	)		(55	)		67			—			—			19			17
Increase (Decrease) in Share Transactions		20,099			(12,135	)		(8,291	)		(11,040	)		(8,685	)		(88	)		(3,480	)		(712	)		120

	U.S. Managed Volatility Fund						Global Managed Volatility Fund						Tax-Managed Managed Volatility Fund						Real Estate Fund						Enhanced Income Fund
	2010			2009			2010			2009			2010			2009			2010			2009			2010			2009
Class A:
Shares Issued		19,047			42,006			25,777			32,422			12,259			26,871			12,707			36,459			13,933			25,463
Shares Issued in Lieu of Cash Distributions		479			604			101			—			275			241			652			809			814			950
Shares Redeemed		(20,567	)		(43,906	)		(12,968	)		(27,602	)		(8,110	)		(16,652	)		(17,761	)		(32,102	)		(28,772	)		(32,330	)
Total Class A Transactions		(1,041	)		(1,296	)		12,910			4,820			4,424			10,460			(4,402	)		5,166			(14,025	)		(5,917	)
Class I:
Shares Issued		3			2			13			3			—			—			17			13			2			4
Shares Issued in Lieu of Cash Distributions		—						—						—						1						—
Shares Redeemed		(2	)		—			(7	)		(2	)		—			—			(6	)		(1	)		(6	)		—
Total Class I Transactions		1			2			6			1			—			—			12			12			(4	)		4
Increase (Decrease) in Share Transactions		(1,040	)		(1,294	)		12,916			4,821			4,424			10,460			(4,390	)		5,178			(14,029	)		(5,913	)

	Core Fixed Income Fund						U.S. Fixed Income Fund(2)						High Yield Bond Fund						Real Return Fund(2)						Multi-Strategy Alternative Fund(3)
	2010			2009			2010			2009			2010			2009			2010			2009			03/31/10 to 09/30/10
Class A:
Shares Issued		71,455			140,720			62,360			70,927			142,465			186,696			19,945			13,379			20,817
Shares Issued in Lieu of Cash Distributions		9,212			15,730			2,912			424			14,881			18,815			246			—			—
Shares Redeemed		(112,569	)		(304,425	)		(49,991	)		(5,410	)		(148,528	)		(171,534	)		(5,476	)		(5,179	)		(1,578	)
Total Class A Transactions		(31,902	)		(147,975	)		15,281			65,941			8,818			33,977			14,715			8,200			19,239
Class I:
Shares Issued		772			968			—			—			247			28			—			—			—
Shares Issued in Lieu of Cash Distributions		40			45			—			—			4			2			—			—			—
Shares Redeemed		(584	)		(508	)		—			—			(29	)		(6	)		—			—			—
Total Class I Transactions		228			505			—			—			222			24			—			—			—
Increase (Decrease) in Share Transactions		(31,674	)		(147,470	)		15,281			65,941			9,040			34,001			14,715			8,200			19,239

(1) Commenced operations on October 1, 2009.

(2) Commenced operations on July 2, 2009.

(3) Commenced operations on March 31, 2010.

Amounts designated as “—” are zero or have been rounded to zero.

164 SEI Institutional Managed Trust / Annual Report / September 30, 2010

7. INVESTMENT TRANSACTIONS

The cost of security purchases and proceeds from the sale of securities, other than temporary cash investments and futures, during the year or period ended September 30, 2010, were as follows:

	U.S. Gov’t ($ Thousands)		Other ($ Thousands)		Total ($ Thousands)
Large Cap Fund(1)
Purchases	$	—	$	2,321,856	$	2,321,856
Sales		—		1,081,156		1,081,156
Large Cap Value Fund
Purchases		—		1,061,963		1,061,963
Sales		—		1,451,643		1,451,643
Large Cap Growth Fund
Purchases		—		1,450,906		1,450,906
Sales		—		2,103,638		2,103,638
Tax-Managed Large Cap Fund
Purchases		—		884,586		884,586
Sales		—		1,073,302		1,073,302
S&P 500 Index Fund
Purchases		—		262,426		262,426
Sales		—		296,411		296,411
Small Cap Fund(1)
Purchases		—		446,840		446,840
Sales		—		265,450		265,450
Small Cap Value Fund
Purchases		—		377,218		377,218
Sales		—		497,750		497,750
Small Cap Growth Fund
Purchases		—		384,369		384,369
Sales		—		498,812		498,812
Tax-Managed Small Cap Fund
Purchases		—		207,997		207,997
Sales		—		204,827		204,827
Mid-Cap Fund
Purchases		—		241,394		241,394
Sales		—		249,982		249,982
U.S. Managed Volatility Fund
Purchases		—		188,607		188,607
Sales		—		191,703		191,703
Global Managed Volatility Fund
Purchases		—		312,754		312,754
Sales		—		224,814		224,814
Tax-Managed Managed Volatility
Purchases		—		91,300		91,300
Sales		—		52,034		52,034
Real Estate Fund
Purchases		—		134,570		134,570
Sales		—		172,889		172,889
Enhanced Income Fund
Purchases		47,260		10,448		57,708
Sales		71,859		45,094		116,953
Core Fixed Income Fund
Purchases		5,728,240		818,870		6,547,110
Sales		5,660,545		1,134,111		6,794,656
U.S Fixed Income Fund
Purchases		1,926,777		527,039		2,453,816
Sales		1,873,947		418,356		2,292,303
High Yield Bond Fund
Purchases		—		1,388,030		1,388,030
Sales		597		1,340,160		1,340,757
Real Return Fund
Purchases		290,942		—		290,942
Sales		140,641		—		140,641
Multi-Strategy Alternative Fund(2)
Purchases		—		250,513		250,513
Sales		—		65,434		65,434

(1) For the period October 1, 2009 through September 30, 2010.

(2) For the period March 31, 2010 through September 30, 2010.

8. FEDERAL TAX INFORMATION

It is each Fund’s intention to continue to qualify as a regulated investment company under Subchapter M of The Internal Revenue Code and distribute all of its taxable income (including net capital gains). Accordingly, no provision for Federal income taxes is required.

Dividends from net investment income and distributions from net realized capital gains are determined in accordance with U.S. Federal income tax regulations, which may differ from those amounts determined under GAAP. These book/tax differences are either temporary or permanent in nature. To the extent these differences are permanent, they are charged or credited to paid-in capital, undistributed net investment income or accumulated net realized gain, as appropriate, in the period that the differences arise. Accordingly, the following permanent differences, primarily attributable to different treatment for gains and losses on paydowns of mortgage- and asset-backed securities for tax purposes, return of capital, investments in swaps, investments in partnerships, municipal bonds, collateralized debt obligations, distribution reclassification, expiration of capital losses, REIT income reclassification, foreign currency transactions, accretion and amortization on defaulted bonds reclassification and net operating losses have been reclassified to/from the following accounts as of September 30, 2010:

	Paid-in-Capital ($ Thousands)			Undistributed Net Investment Income/(Loss) ($  Thousands)			Accumulated Realized Gain/(loss) ($ Thousands)
Large Cap Fund	$	—		$	214		$	(214	)
Large Cap Value Fund		—			435			(435	)
Large Cap Growth Fund		(391,946	)		181			391,765
Tax-Managed Large Cap Fund		(52,276	)		280			51,996
S&P 500 Index Fund		—			238			(238	)
Small Cap Fund		—			133			(133	)
Small Cap Value Fund		—			1,309			(1,309	)
Small Cap Growth Fund		(893	)		930			(37	)
Tax-Managed Small Cap Fund		—			120			(120	)
Mid-Cap Fund		—			80			(80	)
U.S. Managed Volatility Fund		—			118			(118	)
Global Managed Volatility Fund		(10,124	)		3,159			6,965
Tax-Managed Managed Volatility Fund		—			60			(60	)
Real Estate Fund		(2,158	)		3,642			(1,484	)
Enhanced Income Fund		—			597			(597	)
Core Fixed Income Fund		4			2,389			(2,393	)
U.S. Fixed Income Fund		—			2,408			(2,408	)
High Yield Bond Fund		(68,652	)		(1,031	)		69,683
Real Return Fund		—			49			(49	)
Multi-Strategy Alternative Fund		(315	)		315			—

SEI Institutional Managed Trust / Annual Report / September 30, 2010 165

Notes to Financial Statements (Continued)

September 30, 2010

The tax character of dividends and distributions paid during the years or periods ended September 30, 2010 and September 30, 2009 (unless otherwise indicated) was as follows:

		Ordinary Income ($ Thousands)		Long-Term Capital Gain ($ Thousands)		Return of Capital ($ Thousands)		Total ($ Thousands)
Large Cap Fund	2010	$	12,021	$	2,478	$	—	$	14,499
Large Cap Value Fund	2010		28,384		—		—		28,384
	2009		47,585		—		—		47,585
Large Cap Growth Fund	2010		11,957		—		—		11,957
	2009		13,318		—		—		13,318
Tax-Managed Large Cap Fund	2010		16,047		—		—		16,047
	2009		24,031		—		—		24,031
S&P 500 Index Fund	2010		25,920		—		—		25,920
	2009		25,778		10,295		—		36,073
Small Cap Fund	2010		553		14		—		567
Small Cap Value Fund	2010		4,161		—		—		4,161
	2009		7,732		3,167		—		10,899
Small Cap Growth Fund	2010		—		—		30		30
	2009		98		—		—		98
Tax-Managed Small Cap Fund	2010		727		—		—		727
	2009		1,496		—		—		1,496
Mid-Cap Fund	2010		729		—		—		729
	2009		1,064		—		—		1,064
U.S. Managed Volatility Fund	2010		5,225		—		—		5,225
	2009		5,650		—		—		5,650
Global Managed Volatility Fund	2010		792		—		72		864
	2009		—		—		—		—
Tax-Managed Managed Volatility Fund	2010		2,727		—		—		2,727
	2009		2,063		—		—		2,063
Real Estate Fund	2010		5,233		—		2,158		7,391
	2009		6,053		—		37		6,090
Enhanced Income Fund	2010		6,384		—		—		6,384
	2009		7,069		—		—		7,069
Core Fixed Income Fund	2010		104,187		—		—		104,187
	2009		153,774		—		—		153,774
U.S. Fixed Income Fund	2010		31,840		—		—		31,840
	2009		4,508		—		—		4,508
High Yield Bond Fund	2010		123,263		—		—		123,263
	2009		111,099		—		—		111,099
Real Return Fund	2010		2,708		18		—		2,726
	2009		—		—		—		—
Multi-Strategy Alternative Fund	2010		—		—		—		—

As of September 30, 2010, the components of Distributable Earnings/(Accumulated Losses) were as follows:

	Undistributed Ordinary Income ($ Thousands)		Undistributed Long-Term Capital Gain ($ Thousands)		Capital Loss Carryforwards ($ Thousands)			Post October Losses ($ Thousands)		Post October Currency Losses ($ Thousands)			Unrealized Appreciation (Depreciation) ($ Thousands)		Other Temporary Differences ($ Thousands)			Total Distributable Earnings (Accumulated Losses) ($  Thousands)
Large Cap Fund	$	38,193	$	3,149	$	—		$	—	$	—		$	69,723	$	4		$	111,069
Large Cap Value Fund		5,204		—		(467,196	)		—		—			27,152		42			(434,798	)
Large Cap Growth Fund		2,327		—		(945,954	)		—		—			245,421		18			(698,188	)
Tax-Managed Large Cap Fund		3,421		—		(536,739	)		—		—			173,866		127			(359,325	)
S&P 500 Index Fund		6,451		—		(36,908	)		—		—			556,171		61			525,775
Small Cap Fund		16,585		2,064		—			—		(7	)		20,429		(56	)		39,015
Small Cap Value Fund		1,690		—		(170,341	)		—		(4	)		38,358		23			(130,274	)
Small Cap Growth Fund		—		—		(302,411	)		—		—			47,634		(26	)		(254,803	)

166 SEI Institutional Managed Trust / Annual Report / September 30, 2010

	Undistributed Ordinary Income ($ Thousands)		Undistributed Long-Term Capital Gain ($ Thousands)		Capital Loss Carryforwards ($ Thousands)			Post October Losses ($ Thousands)			Post October Currency Losses ($ Thousands)			Unrealized Appreciation (Depreciation) ($ Thousands)			Other Temporary Differences ($ Thousands)			Total Distributable Earnings (Accumulated Losses) ($  Thousands)
Tax-Managed Small Cap Fund	$	357	$	—	$	(75,231	)	$	—		$	(41	)	$	41,201		$	37		$	(33,677	)
Mid-Cap Fund		225		—		(36,468	)		—			—			3,639			7			(32,597	)
U.S. Managed Volatility Fund		1,165		—		(97,947	)		—			—			52,940			—			(43,842	)
Global Managed Volatility Fund		—		—		(59,056	)		—			(7,444	)		26,915			1,469			(38,116	)
Tax-Managed Managed Volatility Fund		656		—		(13,382	)		—			—			32,893			—			20,167
Real Estate Fund		501		—		(81,452	)		—			(2	)		35,763			771			(44,419	)
Enhanced Income Fund		793		—		(97,442	)		(27,703	)		—			(4,040	)		—			(128,392	)
Core Fixed Income Fund		6,212		—		(39,694	)		—			(153	)		(42,536	)		(7,037	)		(83,208	)
U.S. Fixed Income Fund		23,559		3,018		—			—			—			35,456			(2,189	)		59,844
High Yield Bond Fund		17,463		—		(215,140	)		(43,513	)		—			33,463			(9,321	)		(217,048	)
Real Return Fund		1,945		—		—			(20	)		—			4,296			7			6,228
Multi-Strategy Alternative Fund		—		—		—			(1,941	)		—			1,408			—			(533	)

Post October losses represent losses realized on investment transactions from November 1, 2009 through September 30, 2010 that, in accordance with Federal income tax regulations, the Funds may defer and treat as having arisen in the following fiscal year. For Federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains as follows:

	Expires 2018 ($ Thousands)		Expires 2017 ($ Thousands)		Expires 2016 ($ Thousands)		Expires 2015 ($ Thousands)		Expires 2014 ($ Thousands)		Expires 2013 ($ Thousands)		Expires 2012 ($ Thousands)		Expires 2011 ($ Thousands)		Total Capital Loss Carryforwards ($ Thousands)
Large Cap Value Fund	$	405,498	$	61,698	$	—	$	—	$	—	$	—	$	—	$	—	$	467,196
Large Cap Growth Fund		248,707		64,163		—		—		—		—		7,113		625,971		945,954
Tax-Managed Large Cap Fund		264,576		52,636		—		—		—		—		16,066		203,461		536,739
S&P 500 Index Fund		31,068		5,840		—		—		—		—		—		—		36,908
Small Cap Value Fund		110,451		59,890		—		—		—		—		—		—		170,341
Small Cap Growth Fund		182,805		119,606		—		—		—		—		—		—		302,411
Tax-Managed Small Cap Fund		51,034		24,197		—		—		—		—		—		—		75,231
Mid-Cap Fund		14,526		21,639		303		—		—		—		—		—		36,468
U.S. Managed Volatility Fund		77,428		20,519		—		—		—		—		—		—		97,947
Global Managed Volatility Fund		31,064		27,992		—		—		—		—		—		—		59,056
Tax-Managed Managed Volatility Fund		8,357		5,025		—		—		—		—		—		—		13,382
Real Estate Fund		—		79,002		2,450		—		—		—		—		—		81,452
Enhanced Income Fund		61,655		31,834		3,427		526		—		—		—		—		97,442
Core Fixed Income Fund		—		2,581		—		37,113		—		—		—		—		39,694
High Yield Bond Fund		61,490		63,877		3,037		21,474		8,149		—		—		57,113		215,140

During the year ended September 30, 2010, the Core Fixed Income Fund utilized $13,229 ($ Thousands) of capital loss carryforward to offset capital gains.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 167

Notes to Financial Statements (Concluded)

September 30, 2010

For Federal income tax purposes, the cost of securities owned at September 30, 2010, and the net realized gains or losses on securities sold for the period, were different from amounts reported for financial reporting purposes, primarily due to straddies and wash sales which cannot be used for Federal income tax purposes in the current year and have been deferred for use in future years. The Federal tax cost and aggregate gross unrealized appreciation and depreciation on investments held by the Funds at September 30, 2010, were as follows:

	Federal Tax Cost ($Thousands)		Appreciated Securities ($Thousands)		Depreciated Securities ($Thousands)			Net Unrealized Appreciation (Depreciation) ($Thousands)
Large Cap Fund	$	1,420,532	$	126,508	$	(56,785	)	$	69,723
Large Cap Value Fund		1,621,626		231,051		(203,899	)		27,152
Large Cap Growth Fund		1,469,136		321,333		(75,912	)		245,421
Tax-Managed Large Cap Fund		1,494,426		334,301		(160,435	)		173,866
S&P 500 Index Fund		1,018,545		633,526		(77,355	)		556,171
Small Cap Fund		247,445		31,643		(11,214	)		20,429
Small Cap Value Fund		642,482		104,930		(66,572	)		38,358
Small Cap Growth Fund		441,753		83,875		(36,241	)		47,634
Tax-Managed Small Cap Fund		376,362		64,858		(23,620	)		41,238
Mid-Cap Fund		147,248		12,566		(8,927	)		3,639
U.S. Managed Volatility Fund		361,080		65,812		(12,872	)		52,940
Global Managed Volatility Fund		297,835		33,763		(5,353	)		28,410
Tax-Managed Managed Volatility Fund		208,143		39,788		(6,895	)		32,893
Real Estate Fund		274,514		67,195		(31,432	)		35,763
Enhanced Income Fund		144,407		2,181		(6,221	)		(4,040	)
Core Fixed Income Fund		2,634,386		144,542		(176,711	)		(32,169	)
U.S. Fixed Income Fund		916,116		39,511		(2,992	)		36,519
High Yield Bond Fund		1,491,107		96,305		(61,798	)		34,507
Real Return Fund		244,814		4,581		(285	)		4,296
Multi-Strategy Alternative Fund		190,896		1,931		(523	)		1,408

Management has analyzed the Funds’ tax position taken on federal income tax returns for all open tax years and has concluded that as of September 30, 2010, no provision for income tax would be required in the Funds’ financial statements. The Funds’ federal and state income and federal excise tax returns for tax years for which the applicable statutes of limitations have not expired are subject to examination by the Internal Revenue Service and state departments of revenue.

9. SECURITIES LENDING

Each Fund may lend portfolio securities to brokers, dealers and other financial organizations that meet capital and other credit requirements or other criteria established by the Trust’s Board of Trustees. These loans may not exceed 33 ¹/3% of the total asset value of the Fund (including the loan collateral). No Fund will lend portfolio securities to its Adviser, sub-adviser or their affiliates unless it has applied for and received specific authority to do so from the SEC. Loans of portfolio

securities will be fully collateralized by cash. Collateral will be maintained in an amount equal to at least 100% of the current market value of the loaned securities by marking to market daily, although the borrower will be required to deliver collateral between 102% and 105% of the market value of borrowed securities for domestic and foreign securities, respectively. However, due to market fluctuations during the day, the value of securities loaned on a particular day may, during the course of the day, exceed the value of collateral. On each business day, the amount of collateral is adjusted based on the prior day’s market fluctuations and the current day’s lending activity. Income from lending activity is determined by the amount of interest earned on collateral, less any amounts payable to the borrowers of the securities and the lending agent. Lending securities involves certain risks, including the risk that the Fund may be delayed or prevented from recovering the collateral if the borrower fails to return the securities.

Cash collateral received in connection with securities lending is invested in short-term investments by the lending agent. These investments may include the SEI Liquidity Fund L.P., and the Fund bears all of the gains and losses on such investment. There is no guarantee that these investments will not lose value.

10. CONCENTRATIONS/RISKS

In the normal course of business, the Trust enters into contracts that provide general indemnifications by the Trust to the counterparty to the contract. The Trust’s maximum exposure under these arrangements is dependent on future claims that may be made against the Trust and, therefore, cannot be estimated; however, Management believes that, based on experience, the risk of loss from such claims is considered remote.

The market values of the Core Fixed Income, U.S. Fixed Income and High Yield Bond Funds’ investments will change in response to interest rate changes and other factors. During periods of falling interest rates, the values of fixed income securities generally rise. Conversely, during periods of rising interest rates, the values of such securities generally decline. Changes by recognized rating agencies in the ratings of any fixed income security and in the ability of an issuer to make payments of interest and principal may also affect the value of these investments.

11. SUBSEQUENT EVENTS

Management has evaluated the need for disclosures and/or adjustments resulting from subsequent events. Based on this evaluation, no disclosures and/or adjustments were required to the Financial Statements.

168 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Report of Independent Registered Public Accounting Firm

To the Board of Trustees and Shareholders of

SEI Institutional Managed Trust:

We have audited the accompanying statements of assets and liabilities of the SEI Institutional Managed Trust, comprising the Large Cap Fund, Large Cap Value Fund, Large Cap Growth Fund, Tax-Managed Large Cap Fund, S&P 500 Index Fund, Small Cap Fund, Small Cap Value Fund, Small Cap Growth Fund, Tax-Managed Small Cap Fund, Mid-Cap Fund, U.S. Managed Volatility Fund, Global Managed Volatility Fund, Tax-Managed Managed Volatility Fund, Real Estate Fund, Enhanced Income Fund, Core Fixed Income Fund, U.S. Fixed Income Fund, High Yield Bond Fund, Real Return Fund, and Multi-Strategy Alternative Fund (twenty of the funds constituting the SEI Institutional Managed Trust, collectively, the “Funds”) as of September 30, 2010, including the schedules of investments or summary schedules of investments, as applicable, and the related statements of operations for the year or period then ended, the statements of changes in net assets for each of the years or periods in the two-year period then ended, and the financial highlights for each of the years or periods in the five-year period then ended. These financial statements and financial highlights are the responsibility of the Funds’ management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our procedures included confirmation of securities owned as of September 30, 2010, by correspondence with the custodian and brokers or other appropriate auditing procedures. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of each of the funds comprising SEI Institutional Managed Trust as of September 30, 2010, the results of their operations for the year or period then ended, the changes in their net assets for each of the years or periods in the two-year period then ended, and the financial highlights for each of the years or periods in the five-year period then ended, in conformity with U.S. generally accepted accounting principles.

Philadelphia, Pennsylvania

November 29, 2010

SEI Institutional Managed Trust / Annual Report / September 30, 2010 169

TRUSTEES AND OFFICERS OF THE TRUST (Unaudited)

The following chart lists Trustees and Officers as of September 30, 2010.

Set forth below are the names, addresses, ages, position with the Trust, Term of Office and Length of Time Served, the principal occupations for the last five years, number of portfolios in fund complex overseen by trustee, and other directorships outside the fund complex of each of the persons currently serving as Trustees and Officers of the Trust. The Trust’s Statement of Additional Information (“SAI”) includes additional information about the Trustees and Officers. The SAI may be obtained without charge by calling 1-800-342-5734.

Name Address, and Age	Position(s) Held with Trusts	Term of Office and Length of Time Served1	Principal Occupation(s) During Past Five Years	Number of Portfolios in Fund Complex Overseen by Trustee2	Other Directorships Held by Trustee
INTERESTED TRUSTEES
Robert A. Nesher One Freedom Valley Drive, Oaks, PA 19456 64 yrs. old	Chairman of the Board of Trustees*	since 1982	Currently performs various services on behalf of SEI Investments for which Mr. Nesher is compensated.	81	Trustee of The Advisors’ Inner Circle Fund, The Advisors’ Inner Circle Fund II, Bishop Street Funds, Director of SEI Global Master Fund, plc, SEI Global Assets Fund, plc, SEI Global Investments Fund, plc, SEI Investments Global, Limited, SEI Investments — Global Fund Services, Limited, SEI Investments (Europe), Limited, SEI Investments — Unit Trust Management (UK), Limited, SEI Global Nominee, Limited, and SEI Structured Credit Fund, L.P.
William M. Doran 1701 Market Street Philadelphia, PA 19103 70 yrs. old	Trustee*	since 1982	Self-employed consultant since 2003. Partner, Morgan, Lewis & Bockius LLP (law firm) from 1976 to 2003, counsel to the Trust, SEI, SIMC, the Administrator and the Distributor. Secretary of SEI since 1978.	81	Trustee of The Advisors’ Inner Circle Fund, The Advisors’ Inner Circle Fund II, Bishop Street Funds, Director of SEI since 1974. Director of the Distributor since 2003. Director of SEI Investments — Global Fund Services, Limited, SEI Investments Global, Limited, SEI Investments (Europe), Limited, SEI Investments (Asia) Limited, SEI Global Nominee, Limited, SEI — Unit Trust Management (UK) Limited, and SEI Asset Korea Co., Limited.
TRUSTEES
James M. Storey One Freedom Valley Drive, Oaks, PA 19456 79 yrs. old	Trustee	since 1995	Attorney, sole practitioner since 1994. Partner, Dechert Price & Rhoads, September 1987-December 1993.	81	Trustee of The Advisors’ Inner Circle Fund, The Advisors’ Inner Circle Fund II, Bishop Street Funds, and U.S. Charitable Gift Trust.

* Messrs. Nesher and Doran are Trustees who may be deemed as “interested” persons of the Trust as that term is defined in the 1940 Act by virtue of their affiliation with SIMC and the Trust’s Distributor.

¹ Each trustee shall hold office during the lifetime of this Trust until the election and qualification of his or her successor, or until he or she sooner dies, resigns or is removed in accordance with the Trust’s Declaration of Trust.

² The Fund Complex includes the following Trusts: SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Institutional Investments Trust, SEI Institutional International Trust, SEI Institutional Managed Trust, SEI Liquid Asset Trust, SEI Tax Exempt Trust and SEI Alpha Strategy Portfolios, L.P.

170 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Name Address, and Age	Position(s) Held with Trusts	Term of Office and Length of Time Served1	Principal Occupation(s) During Past Five Years	Number of Portfolios in Fund Complex Overseen by Trustee2	Other Directorships Held by Trustee
TRUSTEES (continued)
George J. Sullivan, Jr. One Freedom Valley Drive Oaks, PA 19456 67 yrs. old	Trustee	since 1996	Self-Employed Consultant, Newfound Consultants Inc. since April 1997.	81	Trustee of The Advisors’ Inner Circle Fund, The Advisors’ Inner Circle Fund II, Bishop Street Funds, State Street Navigator Securities Lending Trust, and SEI Structured Credit Fund, L.P. Member of the independent review committee for SEI’s Canadian registered mutual funds.
Rosemarie B. Greco One Freedom Valley Drive Oaks, PA 19456 64 yrs. old	Trustee	since 1999	Director, Governor’s Office of Health Care Reform, Commonwealth of Pennsylvania since 2003.	81	Director, Sonoco, Inc.; Director, Exelon Corporation; Trustee, Pennsylvania Real Estate Investment Trust.
Nina Lesavoy One Freedom Valley Drive, Oaks, PA 19456 53 yrs. old	Trustee	since 2003	Founder and Managing Director, Avec Capital since 2008. Managing Director, Cue Capital from March 2002-March 2008.	81	Director of SEI Structured Credit Fund, L.P.
James M. Williams One Freedom Valley Drive, Oaks, PA 19456 63 yrs. old	Trustee	since 2004	Vice President and Chief Investment Officer, J. Paul Getty Trust, Non-Profit Foundation for Visual Arts, since December 2002.	81	Trustee/Director of Ariel Mutual Funds, and SEI Structured Credit Fund, L.P.
Mitchell A. Johnson One Freedom Valley Drive, Oaks, PA 19456 68 yrs. old	Trustee	since 2007	Private Investor since 1994.	81	Trustee of the Advisors’ Inner Circle Fund, The Advisor’s Inner Circle Fund II, and Bishop Street Funds.
Hubert L. Harris, Jr. One Freedom Valley Drive, Oaks, PA 19456 67 yrs. old	Trustee	since 2008	Retired since December 2005. Chief Executive Officer, INVESCO North America, August 2003-December 2005. Director of Colonial BancGroup, Inc., 2003-2009. Chair of the Board of Trustees, Georgia Tech Foundation, Inc. (nonprofit corporation), 2007-2009.	81	Director of St. Joseph’s Translation Research Institute; Board of Councilors of the Carter Center.
OFFICERS
Robert A. Nesher One Freedom Valley Drive, Oaks, PA 19456 64 yrs. old	President & CEO	since 2005	Currently performs various services on behalf of SEI for which Mr. Nesher is compensated.	N/A	N/A
Stephen F. Panner One Freedom Valley Drive, Oaks, PA 19456 40 yrs. old	Controller and Chief Financial Officer	since 2005	Fund Accounting Director of the Administrator since 2005. Fund Administration Manager, Old Mutual Fund Services, 2000-2005.	N/A	N/A

SEI Institutional Managed Trust / Annual Report / September 30, 2010 171

TRUSTEES AND OFFICERS OF THE TRUST (Unaudited) (Concluded)

Name Address, and Age	Position(s) Held with Trusts	Term of Office and Length of Time Served1	Principal Occupation(s) During Past Five Years	Number of Portfolios in Fund Complex Overseen by  Trustee2	Other Directorships Held by Trustee
OFFICERS (continued)
Russell Emery One Freedom Valley Drive Oaks, PA 19456 47 yrs. old	Chief Compliance Officer	since 2006	Chief Compliance Officer of SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Institutional International Trust,SEI Institutional Investments Trust, SEI Institutional Management Trust, SEI Liquid Asset Trust, SEI Tax Exempt Trust, The Advisors’ Inner Circle Fund, The Advisors’ Inner Circle Fund II, and Bishop Street Funds, since March 2006. Chief Compliance Officer of SEI Structured Credit Fund, LP and SEI Alpha Strategy Portfolio, LP since June 2007. Director of Investment Product Management and Development of SIMC, February 2003-March 2006.	N/A	N/A
Timothy D. Barto One Freedom Valley Drive Oaks, PA 19456 42 yrs. old	Vice President and Secretary	since 2002	General Counsel, Vice President and Secretary of SIMC and the Administrator since 2004. Vice President and Assistant Secretary of SEI since 2001. Vice President of SIMC and the Administrator since 1999.	N/A	N/A
James Ndiaye One Freedom Valley Drive Oaks, PA 19456 42 yrs. old	Vice President and Assistant Secretary	since 2005	Vice President and Assistant Secretary of SIMC since 2005.	N/A	N/A
Aaron Buser One Freedom Valley Drive Oaks, PA 19456 39 yrs. old	Vice President and Assistant Secretary	since 2008	Vice President and Assistant Secretary of SIMC since 2007. Associate at Stark & Stark 2004-2007.	N/A	N/A
David F. McCann One Freedom Valley Drive Oaks, PA 19456 34 yrs. old	Vice President and Assistant Secretary	since 2009	Vice President and Assistant Secretary of SIMC since 2008. Attorney Drinker Biddle & Reath, LLP May 2005-October 2008.	N/A	N/A
John J. McCue One Freedom Valley Drive Oaks, PA 19456 47 yrs. old	Vice President	since 2004	Director of Portfolio Implementations for SIMC since 1995. Managing Director of Money Market Investments for SIMC since 2003.	N/A	N/A
Andrew S. Decker One Freedom Valley Drive Oaks, PA 19456 46 yrs. old	Anti-Money Laundering Compliance Officer	since 2008	Compliance Officer and Product Manager, SEI 2005-2008. Vice President, Old Mutual Capital, 2000-2005.	N/A	N/A
Keri E. Rohn One Freedom Valley Drive Oaks, PA 19456 29 yrs. old	Privacy Officer	since 2009	Compliance Officer of SEI Investments Company, since 2003.	N/A	N/A

¹ Each trustee shall hold office during the lifetime of this Trust until the election and qualification of his or her successor, or until he or she sooner dies, resigns or is removed in accordance with the Trust’s Declaration of Trust.

² The Fund Complex includes the following Trusts: SEI Asset Allocation Trust, SEI Daily Income Trust, SEI Institutional Investments Trust, SEI Institutional International Trust, SEI Institutional Managed Trust, SEI Liquid Asset Trust, SEI Tax Exempt Trust and SEI Alpha Strategy Portfolios, L.P.

172 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Disclosure of Fund Expenses (Unaudited)

All mutual funds have operating expenses. As a shareholder of a mutual fund, your investment is affected by these ongoing costs, which include (among others) costs for portfolio management, administrative services, and shareholder reports like this one. It is important for you to understand the impact of these costs on your investment returns.

Operating expenses such as these are deducted from the mutual fund’s gross income and directly reduce your final investment return. These expenses are expressed as a percentage of the mutual fund’s average net assets; this percentage is known as the mutual fund’s expense ratio.

The following examples use the expense ratio and are intended to help you understand the ongoing costs (in dollars) of investing in your Fund and to compare these costs with those of other mutual funds. The examples are based on an investment of $1,000 made at the beginning of the period shown and held for the entire period.

The table on the next page illustrates your Fund’s costs in two ways:

• Actual Fund return. This section helps you to estimate the actual expenses after fee waivers that your Fund incurred over the period. The “Expenses Paid During Period” column shows the actual dollar expense cost incurred by a $1,000 investment in the Fund, and the “Ending Account Value” number is derived from deducting that expense cost from the Fund’s gross investment return.

You can use this information, together with the actual amount you invested in your Fund, to estimate the expenses you paid over that period. Simply divide your actual starting account value by $1,000 to arrive at a ratio (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply that ratio by the number shown for your Fund under “Expenses Paid During Period.”

• Hypothetical 5% return. This section helps you compare your Fund’s costs with those of other mutual funds. It assumes that your Fund had an annual 5% return before expenses during the year, but that the expense ratio (Column 3) is unchanged. This example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to make this 5% calculation. You can assess your Fund’s comparative cost by comparing the hypothetical result for your Fund in the “Expense Paid During Period” column with those that appear in the same charts in the shareholder reports for other mutual funds.

NOTE: Because the return is set at 5% for comparison purposes — NOT your Fund’s actual return — the account values shown do not apply to your specific investment.

	Beginning Account Value 04/01/10		Ending Account Value 09/30/10		Annualized Expense Ratios			Expense Paid During Period*
Large Cap Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	980.90		0.89	%	$	4.42
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.61		0.89	%	$	4.51
Large Cap Value Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	976.40		0.89	%	$	4.41
Class I Shares		1,000.00		975.60		1.11			5.50
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.61		0.89	%	$	4.51
Class I Shares		1,000.00		1,019.50		1.11			5.62
Large Cap Growth Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,000.40		0.89	%	$	4.46
Class I Shares		1,000.00		999.60		1.11			5.56
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.61		0.89	%	$	4.51
Class I Shares		1,000.00		1,019.50		1.11			5.62

	Beginning Account Value 04/01/10		Ending Account Value 09/30/10		Annualized Expense Ratios			Expense Paid During Period*
Tax-Managed Large Cap Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	981.50		0.89	%	$	4.42
Class Y Shares		1,000.00		982.90		0.56			2.78
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.61		0.89	%	$	4.51
Class Y Shares		1,000.00		1,022.26		0.56			2.84
S &P 500 Index Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	985.80		0.43	%	$	2.14
Class E Shares		1,000.00		986.30		0.25			1.24
Class I Shares		1,000.00		984.40		0.65			3.23
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,022.91		0.43	%	$	2.18
Class E Shares		1,000.00		1,023.82		0.25			1.27
Class I Shares		1,000.00		1,021.81		0.65			3.29
Small Cap Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	994.60		1.14	%	$	5.70
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.35		1.14	%	$	5.77

SEI Institutional Managed Trust / Annual Report / September 30, 2010 173

Disclosure of Fund Expenses (Unaudited) (Concluded)

	Beginning Account Value 04/01/10		Ending Account Value 09/30/10		Annualized Expense Ratios			Expense Paid During Period*
Small Cap Value Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,003.30		1.14	%	$	5.73
Class I Shares		1,000.00		1,002.60		1.36			6.83
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.35		1.14	%	$	5.77
Class I Shares		1,000.00		1,018.25		1.36			6.88
Small Cap Growth Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,005.50		1.11	%	$	5.58
Class I Shares		1,000.00		1,004.20		1.36			6.83
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.50		1.11	%	$	5.62
Class I Shares		1,000.00		1,018.25		1.36			6.88
Tax-Managed Small Cap Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	995.20		1.11	%	$	5.55
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.50		1.11	%	$	5.62
Mid-Cap Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,004.80		1.02	%	$	5.13
Class I Shares		1,000.00		1,004.00		1.26			6.33
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.95		1.02	%	$	5.16
Class I Shares		1,000.00		1,018.75		1.26			6.38
U.S. Managed Volatility Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,021.10		1.00	%	$	5.07
Class I Shares		1,000.00		1,019.40		1.25			6.33
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.05		1.00	%	$	5.06
Class I Shares		1,000.00		1,018.80		1.25			6.33
Global Managed Volatility Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	996.40		1.11	%	$	5.56
Class I Shares		1,000.00		996.30		1.36			6.81
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.50		1.11	%	$	5.62
Class I Shares		1,000.00		1,018.25		1.36			6.88
Tax-Managed Managed Volatility Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,031.40		1.00	%	$	5.09
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.05		1.00	%	$	5.06
Real Estate Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,077.30		1.14	%	$	5.94
Class I Shares		1,000.00		1,076.60		1.36			7.08
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,019.35		1.14	%	$	5.77
Class I Shares		1,000.00		1,018.25		1.36			6.88
Enhanced Income Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,008.70		0.60	%	$	3.02
Class I Shares		1,000.00		1,005.00		0.85			4.27
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,022.06		0.60	%	$	3.04
Class I Shares		1,000.00		1,020.81		0.85			4.31
Core Fixed Income Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,075.60		0.67	%	$	3.49
Class I Shares		1,000.00		1,073.50		0.89			4.63
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,021.71		0.67	%	$	3.40
Class I Shares		1,000.00		1,020.61		0.89			4.51

	Beginning Account Value 04/01/10		Ending Account Value 09/30/10		Annualized Expense Ratios			Expense Paid During Period*
U.S. Fixed Income Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,062.50		0.66	%	$	3.41
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,021.76		0.66	%	$	3.35
High Yield Bond Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,066.00		0.89	%	$	4.61
Class I Shares		1,000.00		1,064.60		1.11			5.74
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,020.61		0.89	%	$	4.51
Class I Shares		1,000.00		1,019.50		1.11			5.62
Real Return Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	1,020.90		0.45	%	$	2.28
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,022.81		0.45	%	$	2.28
Multi-Strategy Alternative Fund
Actual Fund Return
Class A Shares	$	1,000.00	$	993.00		0.50	%	$	2.50
Hypothetical 5% Return
Class A Shares	$	1,000.00	$	1,022.56		0.50	%	$	2.54

* Expenses are equal to the Fund’s annualized expense ratio multiplied by the average account value over the period, multiplied by 183/365 (to reflect one-half year period shown).

174 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Board of Trustee Considerations in Approving the Advisory and Sub-Advisory Agreements (Unaudited)

SEI Institutional Managed Trust (the “Trust”) and SEI Investments Management Corporation (“SIMC”) have entered into an investment advisory agreement (the “Advisory Agreement”). Pursuant to the Advisory Agreement, SIMC oversees the investment advisory services provided to the series of the Trust (the “Funds”), provides direct investment management services for the Multi-Strategy Alternative Fund and may manage the cash portion of the Funds’ assets. Pursuant to separate sub-advisory agreements (the “Sub-Advisory Agreements” and, together with the Advisory Agreement, the “Investment Advisory Agreements”) with SIMC, and under the supervision of SIMC and the Trust’s Board of Trustees (the “Board”), the Sub-Advisers are responsible for the day-to-day investment management of all or a discrete portion of the assets of certain Funds, except for the Multi-Strategy Alternative Fund, which is directly managed by SIMC. The Sub-Advisers also are responsible for managing their employees who provide services to these Funds. The Sub-Advisers are selected based primarily upon the research and recommendations of SIMC, which evaluates quantitatively and qualitatively the Sub-Advisers’ skills and investment results in managing assets for specific asset classes, investment styles and strategies.

The Investment Company Act of 1940, as amended (the “1940 Act”) requires that the initial approval of, as well as the continuation of, the Funds’ Investment Advisory Agreements must be specifically approved: (i) by the vote of the Board of Trustees or by a vote of the shareholders of the Funds; and (ii) by the vote of a majority of the Trustees who are not parties to the Investment Advisory Agreements or “interested persons” of any party (the “Independent Trustees”), cast in person at a meeting called for the purpose of voting on such approval. In connection with their consideration of such approvals, the Funds’ Trustees must request and evaluate, and SIMC and the Sub-Advisers are required to furnish, such information as may be reasonably necessary to evaluate the terms of the Investment Advisory Agreements. In addition, the Securities and Exchange Commission (“SEC”) takes the position that, as part of their fiduciary duties with respect to a mutual fund’s fees, mutual fund boards are required to evaluate the material factors applicable to a decision to approve an Investment Advisory Agreement.

Consistent with these responsibilities, the Trust’s Board of Trustees calls and holds meetings each year that are dedicated to considering whether to renew the Investment Advisory Agreements between the Trust and SIMC and SIMC and the Sub-Advisers with respect to the Funds of the Trust. In preparation for these meetings, the Board requests and reviews a wide variety of materials provided by SIMC and the Sub-Advisers, including information about SIMC’s and the Sub-Advisers’ affiliates, personnel and operations. The Board also receives extensive data provided by third parties. This information is in addition to the detailed information about the Funds that the Board reviews during the course of each year, including information that relates to Fund operations and Fund performance. The Trustees also receive a memorandum from Fund counsel and independent counsel to the Independent Trustees regarding the responsibilities of Trustees in connection with their consideration of whether to approve the Trust’s Investment Advisory Agreements. Finally, the Independent Trustees receive advice from independent counsel to the Independent Trustees, meet in executive session outside the presence of Fund management and participate in question and answer sessions with representatives of SIMC and the Sub-Advisers.

Specifically, the Board requested and received written materials from SIMC and the Sub-Advisers regarding: (a) the quality of SIMC’s and the Sub-Advisers’ investment management and other services; (b) SIMC’s and the Sub-Advisers’ investment management personnel; (c) SIMC’s and the Sub-Advisers’ operations and financial condition; (d) SIMC’s and the Sub-Advisers’ brokerage practices (including any soft dollar arrangements) and investment strategies; (e) the level of the advisory fees that SIMC and the Sub-Advisers charge the Funds compared with the fees each charge to comparable mutual funds; (f) the Funds’ overall fees and operating expenses compared with similar mutual funds; (g) the level of SIMC’s and the Sub-Advisers’ profitability from their Fund-related operations; (h) SIMC’s and the Sub-Advisers’ compliance systems; (i) SIMC’s and the Sub-Advisers’ policies on and compliance procedures for personal securities transactions; (j) SIMC’s and the Sub-Advisers’ reputation, expertise and resources in domestic and/or international financial markets; and (k) the Funds’ performance compared with similar mutual funds.

At the June 22-23, 2010 and September 14-15, 2010 meetings of the Board of Trustees, the Trustees, including a majority of the Independent Trustees, approved the Investment Advisory Agreements and approved the selection of SIMC and the Sub-Advisers to act in their respective capacities for the Funds. Additionally, during a meeting of the Board of Trustees held on March 24-25,

SEI Institutional Managed Trust / Annual Report / September 30, 2010 175

Board of Trustee Considerations in Approving the Advisory and Sub-Advisory Agreements (Unaudited) (Concluded)

2010, the Board, including the Independent Trustees, considered a proposal to approve a Sub-Advisory Agreement with LSV Asset Management, an affiliate of SIMC and the Funds, to serve as sub-adviser to certain Funds (the “Proposal”). SIMC determined that the affected Funds would benefit from the sub-advisory services of LSV and that LSV’s unique strategy and strong collaborative research efforts would aide the affected Funds in seeking to achieve their investment goals. At the March 24-25, 2010 meeting, the Board, including all of the Independent Trustees, unanimously approved this Proposal, subject to approval of the affected Funds’ shareholders. The Board concluded, in the exercise of its reasonable judgment, that the Proposal was fair and reasonable in relation to the services expected to be provided to each of the affected Funds and that approval of the Proposal would be in the best interests of the shareholders of each of the affected Funds. The affected Funds’ shareholders approved the Proposal at a meeting of the shareholders held on August 26, 2010. The Board’s approval of both the Proposal and the Investment Advisory Agreements was based on its consideration and evaluation of a variety of specific factors discussed at the meetings and at prior meetings, including:

• the nature, extent and quality of the services provided to the Funds under the Investment Advisory Agreements, including the resources of SIMC and the Sub-Advisers and their affiliates dedicated to the Funds;

• the Funds’ investment performance and how it compared to that of other comparable mutual funds;

• the Funds’ expenses under each Investment Advisory Agreement and how those expenses compared to those of other comparable mutual funds;

• the profitability of SIMC and the Sub-Advisers and their affiliates with respect to the Funds, including both direct and indirect benefits accruing to SIMC and the Sub-Advisers and their affiliates; and

• the extent to which economies of scale would be realized as the Funds grow and whether fee levels in the Investment Advisory Agreements reflect those economies of scale for the benefit of Fund investors.

Nature, Extent and Quality of Services. The Board of Trustees considered the nature, extent and quality of the services provided by SIMC and the Sub-Advisers to the Funds and the resources of SIMC and the Sub-Advisers and their affiliates dedicated to the Funds. In this regard, the Trustees evaluated, among other things, SIMC’s and the Sub-Advisers’ personnel, experience, track record and compliance program. The Trustees found the level of SIMC’s professional staff and culture of compliance satisfactory. Following evaluation, the Board concluded that, within the context of its full deliberations, the nature, extent and quality of services provided by SIMC and the Sub-Advisers to the Funds and the resources of SIMC and the Sub-Advisers and their affiliates dedicated to the Funds supported renewal of the Investment Advisory Agreements.

Fund Performance. The Board of Trustees considered Fund performance in determining whether to renew the Investment Advisory Agreements. Specifically, the Trustees considered the Funds’ performance relative to their peer groups and appropriate indices/benchmarks, in light of total return, yield and market trends. As part of this review, the Trustees considered the composition of each peer group and selection criteria. In evaluating performance, the Trustees considered both market risk and shareholder risk expectations for the Funds. The Trustees found Fund performance satisfactory, and where performance was below the benchmark, the Trustees were satisfied that appropriate steps were being taken. Following evaluation, the Board concluded that, within the context of its full deliberations, the performance of the Funds supported renewal of the Investment Advisory Agreements.

Fund Expenses. With respect to the Funds’ expenses under the Investment Advisory Agreements, the Trustees considered the rate of compensation called for by the Investment Advisory Agreements and the Funds’ net operating expense ratio in comparison to those of other comparable mutual funds. The Trustees also considered information about average expense ratios of comparable mutual funds in the Funds’ respective peer groups. The Trustees further considered the fact that the comparative fee analysis either showed that the various fees were below average or that there was a reasonable basis for the fee level. Finally, the Trustees considered the effects of SIMC’s voluntary waiver of management and other fees and the Sub-Advisers’ fees to prevent

176 SEI Institutional Managed Trust / Annual Report / September 30, 2010

total Fund expenses from exceeding a specified cap and that SIMC and the Sub-Advisers, through waivers, have maintained the Funds’ net operating expenses at competitive levels for their respective distribution channels. Following evaluation, the Board concluded that, within the context of its full deliberations, the expenses of the Funds are reasonable and supported renewal of the Investment Advisory Agreements.

Profitability. With regard to profitability, the Trustees considered all compensation flowing to SIMC and the Sub-Advisers and their affiliates, directly or indirectly. The Trustees considered whether the varied levels of compensation and profitability under the Investment Advisory Agreements and other service agreements were reasonable and justified in light of the quality of all services rendered to the Funds by SIMC and the Sub-Advisers and their affiliates. The Trustees found that profitability was reasonable and that the margin was not increasing despite growth in assets. When considering the profitability of the Sub-Advisers, the Board took into account the fact that the Sub-Advisers are compensated by SIMC, and not by the Funds directly, and such compensation with respect to any Sub-Adviser reflects an arms-length negotiation between the Sub-Adviser and SIMC. Based on this evaluation, the Board concluded that, within the context of its full deliberations, the profitability of SIMC and the Sub-Advisers are reasonable and supported renewal of the Investment Advisory Agreements.

Economies of Scale. The Trustees considered the existence of any economies of scale and whether those were passed along to the Funds’ shareholders through a graduated investment advisory fee schedule or other means, including any fee waivers by SIMC and its affiliates. Based on this evaluation, the Board concluded that, within the context of its full deliberations, the Funds obtain reasonable benefit from economies of scale.

Based on the Trustees’ deliberation and their evaluation of the information described above, the Board, including all of the Independent Trustees, unanimously approved the continuation of the Investment Advisory Agreements and concluded that the compensation under the Investment Advisory Agreements is fair and reasonable in light of such services and expenses and such other matters as the Trustees considered to be relevant in the exercise of their reasonable judgment. In the course of their deliberations, the Trustees did not identify any particular information that was all-important or controlling.

SEI Institutional Managed Trust / Annual Report / September 30, 2010 177

Notice to Shareholders (Unaudited)

For shareholders who do not have a September 30, 2010, taxable year end, this notice is for informational purposes only. For shareholders with a September 30, 2010, taxable year end, please consult your tax adviser as to the pertinence of this notice.

For the fiscal year ended September 30, 2010, the Funds are designating long term and qualifying dividend income with regard to distributions paid during the year as follows:

Fund	(A) Long-Term Capital Gain Distribution			(B) Ordinary Income Distributions (Tax Basis)			Return of Capital			Total Distributions (Tax Basis)			(C) Dividends Qualifying for Corporate Dividends  Rec. Deduction (1)
Large Cap Fund		17	%		83	%		0	%		100	%		41	%
Large Cap Value Fund		0	%		100	%		0	%		100	%		100	%
Large Cap Growth Fund		0	%		100	%		0	%		100	%		100	%
Tax-Managed Large Cap Fund		0	%		100	%		0	%		100	%		100	%
S&P 500 Index Fund		0	%		100	%		0	%		100	%		82	%
Small Cap Fund		2	%		98	%		0	%		100	%		13	%
Small Cap Value Fund		0	%		100	%		0	%		100	%		87	%
Small Cap Growth Fund		0	%		0	%		100	%		0	%		0	%
Tax-Managed Small Cap Fund		0	%		100	%		0	%		100	%		100	%
Mid-Cap Fund		0	%		100	%		0	%		100	%		100	%
U.S. Managed Volatility Fund		0	%		100	%		0	%		100	%		100	%
Global Managed Volatility Fund		0	%		92	%		8	%		100	%		99	%
Tax-Managed Managed Volatility		0	%		100	%		0	%		100	%		100	%
Real Estate Fund(6)		0	%		70	%		30	%		100	%		0	%
Enhanced Income Fund		0	%		100	%		0	%		100	%		0	%
Core Fixed Income Fund		0	%		100	%		0	%		100	%		0	%
U.S. Fixed Income Fund		0	%		100	%		0	%		100	%		0	%
High Yield Bond Fund		0	%		100	%		0	%		100	%		0	%
Real Return Fund		1	%		99	%		0	%		100	%		0	%
Multi-Strategy Alternative Fund		0	%		0	%		0	%		0	%		0	%

Fund	(D) Qualifying Dividend Income (15% Tax Rate for QDI) (2)			(E) U.S. Government Interest (3)			Interest Related Dividends (4)			Short-Term Capital Gain Dividends (5)
Large Cap Fund		40	%		1	%		1	%		100	%
Large Cap Value Fund		100	%		1	%		1	%		0	%
Large Cap Growth Fund		100	%		1	%		1	%		0	%
Tax-Managed Large Cap Fund		100	%		1	%		1	%		0	%
S&P 500 Index Fund		91	%		1	%		1	%		0	%
Small Cap Fund		12	%		1	%		1	%		100	%
Small Cap Value Fund		88	%		1	%		1	%		0	%
Small Cap Growth Fund		0	%		0	%		0	%		0	%
Tax-Managed Small Cap Fund		100	%		1	%		1	%		0	%
Mid-Cap Fund		100	%		1	%		1	%		0	%
U.S. Managed Volatility Fund		100	%		1	%		1	%		0	%
Global Managed Volatility Fund		100	%		0	%		1	%		0	%
Tax-Managed Managed Volatility		100	%		1	%		1	%		0	%
Real Estate Fund(6)		0	%		0	%		0	%		0	%
Enhanced Income Fund		0	%		9	%		99	%		0	%
Core Fixed Income Fund		0	%		10	%		97	%		0	%
U.S. Fixed Income Fund		0	%		9	%		60	%		100	%
High Yield Bond Fund		0	%		0	%		94	%		0	%
Real Return Fund		0	%		2	%		2	%		100	%
Multi-Strategy Alternative Fund		0	%		0	%		0	%		0	%

(1) Qualifying dividends represent dividends which qualify for the corporate dividends received deduction and is reflected as a percentage of ordinary income distributions (the total of short term capital gain and net investment income distributions).

(2) The percentage in this column represents the amount of “Qualifying Dividend Income” and is reflected as a percentage of ordinary income distributions (the total of short term capital gain and net investment income distributions).

(3) “U.S. Government Interest” represents the amount of interest that was derived from direct U.S. Government obligations and distributed during the fiscal year. This amount is reflected as a percentage of total ordinary income distributions (the total of short term capital gain and net investment income distributions). Generally, interest from direct U.S. Government obligations is exempt from state income tax. However, for shareholders who are residents of California, Connecticut and New York, the statutory threshold requirements were not satisfied to permit exemption of these amounts from state income.

(4) The percentage in this column represents the amount of “Interest Related Dividends” and is reflected as a percentage of net investment income distributions that is exempt from U.S. withholding tax when paid to foreign investors. This provision of the IRC will be expiring for years beginning after January 1, 2010.

(5) The percentage in this column represents the amount of “Short-Term Capital Gain Dividends” and is reflected as a percentage of short-term capital gain distributions that is exempt from U.S. withholding tax when paid to foreign investors. This provision of the IRC will be expiring for years beginning after January 1, 2010.

(6) Information reflects Fund activity based on Fund’s December 31, 2009 tax reporting year.

Items (A) and (B) are based on the percentages of each Fund’s total distribution.

Items (C) and (D) are based on the percentage of ordinary income distributions of each Fund.

Item (E) is based on the percentage of gross income of each Fund.

Please consult your tax adviser for proper treatment of this information. This notification should be kept with your permanent tax records.

178 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Shareholder Voting Results (Unaudited)

At a special meeting held on August 26, 2010, the shareholders of the SIMT U.S. Managed Volatility Fund (the “Fund”), voted on the proposal listed below. The results of the voting were as follows:

Proposal 1: With respect to the Fund, to appoint LSV Asset Management as a sub-advisor to the Fund and approve a Sub-Advisory Agreement between the Advisor and LSV Asset Management with respect to the Fund.

U.S. Managed Volatility Fund
	Number of Shares		% of Outstanding Shares			% of Shares Present
Affirmative		18,761,844.93		54.09	%		96.34	%
Against		270,909.01		0.78	%		1.39	%
Abstain		441,383.61		1.27	%		2.27	%
Total		19,474,137.55		56.14	%		100.00	%

At a special meeting held on August 26, 2010, the shareholders of the SIMT Tax-Managed Managed Volatility Fund (the “Fund”), voted on the proposal listed below. The results of the voting were as follows:

Proposal 1: With respect to the Fund, to appoint LSV Asset Management as a sub-advisor to the Fund and approve a Sub-Advisory Agreement between the Advisor and LSV Asset Management with respect to the Fund.

Tax-Managed Managed Volatility Fund
	Number of Shares		% of Outstanding Shares			% of Shares Present
Affirmative		11,823,053.16		51.37	%		95.80	%
Against		159,961.55		0.70	%		1.30	%
Abstain		358,224.93		1.56	%		2.90	%
Total		12,341,239.64		53.63	%		100.00	%

SEI Institutional Managed Trust / Annual Report / September 30, 2010 179

SEI INSTITUTIONAL MANAGED TRUST ANNUAL REPORT SEPTEMBER 30, 2010

Robert A. Nesher, Chairman

Trustees

William M. Doran

James M. Storey

George J. Sullivan, Jr.

Rosemarie B. Greco

Nina Lesavoy

James M. Williams

Mitchell A. Johnson

Hubert L. Harris, Jr.

Officers

Robert A. Nesher

President and Chief Executive Officer

Stephen F. Panner

Controller and Chief Financial Officer

Russell Emery

Chief Compliance Officer

Timothy D. Barto

Vice President, Secretary

James Ndiaye

Vice President, Assistant Secretary

Aaron Buser

Vice President, Assistant Secretary

David F. McCann

Vice President, Assistant Secretary

John J. McCue

Vice President

Andrew S. Decker

Anti-Money Laundering Compliance Officer

Keri E. Rohn

Privacy Officer

Investment Adviser

SEI Investments Management Corporation

Administrator

SEI Investments Global Funds Services

Distributor

SEI Investments Distribution Co.

Legal Counsel

Morgan, Lewis & Bockius LLP

Independent Registered Public Accounting Firm

KPMG LLP

This report and the financial statements contained herein are submitted for the general information of the shareholders of the Trust and must be preceded or accompanied by a current prospectus. Shares of the Funds are not deposits or obligations of, or guaranteed or endorsed by, any bank. The shares are not federally insured by the Federal Deposit Insurance Corporation (FDIC), the Federal Reserve Board, or any other government agency. Investment in the shares involves risk, including the possible loss of principal.

For more information call

1 800 DIAL SEI

(1 800 342 5734)

SEI Investments Distribution Co.

Oaks, PA 19456    1.800.DIAL.SEI (1.800.342.5734)

SEI-F-087 (9/10)

Item 2. Code of Ethics.

The Registrant has adopted a code of ethics that applies to the Registrant’s principal executive officer, principal financial officer, comptroller or principal accounting officer.

Item 3. Audit Committee Financial Expert.

(a) (1) The Registrant’s board of trustees has determined that the Registrant has one audit committee financial expert serving on the audit committee.

(a) (2) The audit committee financial experts are George J. Sullivan, Jr. and Hubert L. Harris, Jr. Mrrs. Sullivan and Harris are independent trustees as defined in Form N-CSR Item 3 (a) (2)

Item 4. Principal Accountant Fees and Services.

Fees billed by KPMG LLP (KPMG) related to the Registrant.

KPMG billed the Registrant aggregate fees for services rendered to the Registrant for fiscal year 2010 and for fiscal year 2009 as follows:

		Fiscal Year 2010						Fiscal Year 2009
		All fees and services to the Registrant that were pre- approved		All fees and services  to service affiliates that were pre- approved			All other fees and services to service affiliates that did not require pre-approval	All fees and services to the Registrant that were pre- approved			All fees and services  to service affiliates that were pre- approved		All other fees and services to service affiliates that did not require pre-approval
(a)	Audit Fees (1)	$	513,500	$	0		N/A	$	486,000		$	0	N/A
(b)	Audit-Related Fees	$	0	$	0		N/A	$	0		$	0	N/A
(c)	Tax Fees	$	0	$	139,500	(3)	N/A	$	89,100	(2)	$	0	N/A
(d)	All Other Fees (3)	$	0	$	229,500		N/A	$	0		$	244,500	N/A

Notes:

(1) Audit fees include amounts related to the audit of the Registrant’s annual financial statements and services normally provided by the accountant in connection with statutory and regulatory filings.

(2) Review of Federal income tax returns of the Registrant.

(3) See section (g)(1).

(e)(1) All requests or applications for services to be provided by the independent auditor shall be submitted to the Chief Financial Officer (“CFO”) of the Registrant and must include a detailed description of the services proposed to be rendered. The Registrant’s CFO will determine whether such services (1) require specific pre-approval, (2) are included within the list of services that have received the general pre- approval of the audit committee or (3) have been previously pre-approved in connection with the independent auditor’s annual engagement letter for the applicable year or otherwise.

Requests or applications to provide services that require specific pre-approval by the audit committee will be submitted to the audit committee by the CFO. The audit committee will be informed by the CFO on a quarterly basis of all services rendered by the independent auditor. The audit committee has delegated specific pre-approval authority to either the audit committee chair or financial experts, provided that the estimated fee for any such proposed pre-approved service does not exceed $100,000 and any pre-approval decisions are reported to the audit committee at its next regularly scheduled meeting.

All services to be provided by the independent auditor shall be provided pursuant to a signed written engagement letter with the Registrant, the investment advisor or applicable control affiliate (except that matters as to which an engagement letter would be impractical because of timing issues or because the matter is small may not be the subject of an engagement letter) that sets forth both the services to be provided by the independent auditor and the total fees to be paid to the independent auditor for those services.

In addition, the audit committee has determined to take additional measures on an annual basis to meet its responsibility to oversee the work of the independent auditor and to assure the auditor’s independence from the Registrant, such as reviewing a formal written statement from the independent auditor delineating all relationships between the independent auditor and the Registrant, and discussing with the independent auditor its methods and procedures for ensuring independence.

(e)(2) Percentage of fees billed applicable to non-audit services pursuant to waiver of pre-approval requirement were as follows:

	FYE 2010			FYE 2009
Audit-Related Fees		0	%		0	%
Tax Fees		0	%		0	%
All Other Fees		0	%		0	%

(f) Not Applicable.

(g)(1) The aggregate non-audit fees and services billed by KPMG for the fiscal year 2010 and fiscal year 2009 were $369,000 and $333,600, respectively. Non-audit fees consist of SAS No. 70 review of fund accounting and administration operations, attestation report in accordance with Rule 17 Ad-13, agreed upon procedures report over certain internal controls related to compliance with federal securities laws and regulations and tax compliance and consulting services.

(h) During the past fiscal year, Registrant’s principal accountant provided certain non-audit services to Registrant’s investment adviser or to entities controlling, controlled by, or under common control with Registrant’s investment adviser that provide ongoing services to Registrant that were not subject to pre-approval pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X. The audit committee of Registrant’s board of trustees reviewed and considered these non-audit services provided by Registrant’s principal accountant to Registrant’s affiliates, including whether the provision of these non-audit services is compatible with maintaining the principal accountant’s independence.

Items 5. Audit Committee of Listed Registrants.

Not applicable.

Item 6. Schedule of Investments

The Schedules of Investments in securities of unaffiliated issuers as of the close of the reporting period for the Large Cap Fund, Large Cap Value Fund, Large Cap Growth Fund, Tax-Managed Large Cap Fund, S&P 500 Index Fund, Small Cap Fund, Small Cap Value Fund, Small Cap Growth Fund, Tax-Managed Small Cap Fund, Mid-Cap Fund, U.S. Managed Volatility Fund, Global Managed Volatility Fund and Tax-Managed Managed Volatility Fund are listed below. The Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period for the Real Estate Fund, Enhanced Income Fund, Core Fixed Income Fund, U.S. Fixed Income Fund, High Yield Bond Fund, Real Return Fund and Multi-Strategy Alternative Fund is included as part of the report to shareholders filed under Item 1 of this form.

Schedule of Investments

Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 96.4%
Consumer Discretionary — 11.8%
99 Cents Only Stores *		10,800	$	204
Amazon.com *		106,740		16,764
Apollo Group, Cl A *		54,500		2,799
Asbury Automotive Group *		2,000		28
Autoliv		18,700		1,222
Autozone *		3,600		824
Best Buy (A)		128,330		5,240
Big Lots *		19,300		642
BorgWarner * (A)		45,503		2,394
Burger King Holdings		1,220		29
Carnival		32,200		1,230
CBS, Cl B (A)		48,300		766
CEC Entertainment *		3,000		103
Chico’s FAS (A)		41,500		437
Coach		111,154		4,775
Comcast, Cl A		367,186		6,639
Darden Restaurants		13,000		556
Deckers Outdoor *		4,300		215
DeVry		4,500		221
DIRECTV, Cl A *		138,987		5,786
DISH Network, Cl A		19,800		379
Dollar Tree *		19,650		958
Eastman Kodak * (A)		414,100		1,739
Federal Mogul, Cl A *		3,500		66
Finish Line, Cl A		9,200		128
Ford Motor * (A)		479,077		5,864
Fossil *		9,000		484
Gannett (A)		47,000		575
Gap		107,200		1,998
Garmin (A)		25,700		780
Gentex		13,300		259
Genuine Parts		1,500		67
H&R Block (A)		33,859		439
Helen of Troy *		13,100		331
Home Depot (A)		22,200		703
International Speedway, Cl A		2,900		71
iRobot *		3,000		56
J.C. Penney		20,500		557
Johnson Controls		56,000		1,708
Kirkland’s *		3,700		51
Kohl’s *		1,800		95
Leggett & Platt		15,900		362
Liberty Global, Cl A * (A)		18,800		579
Liberty Media - Interactive, Cl A *		14,600		200
Liberty Media - Starz, Ser A *		10,100		655
Lincoln Educational Services *		7,300		105
LKQ * (A)		22,000		457
Lowe’s		128,300		2,860
Macy’s		107,900		2,491
Mattel		18,900		444
McDonald’s		78,618		5,858
National Presto Industries		900		96
NetFlix * (A)		40,612		6,586
News, Cl A		158,700		2,073
Nike, Cl B (A)		87,900		7,044
Nordstrom (A)		56,200		2,090
Oxford Industries		8,400		200
PetSmart		69,737		2,441

Description	Shares		Market Value ($ Thousands)
Polaris Industries (A)		15,300	$	996
priceline.com *		26,135		9,104
RadioShack		28,900		616
Ross Stores (A)		21,000		1,147
Sears Holdings * (A)		4,100		296
Skechers U.S.A., Cl A *		5,000		118
Staples		167,900		3,513
Starbucks		158,358		4,051
Target		89,404		4,778
Tempur-Pedic International * (A)		24,400		756
Thor Industries (A)		15,100		504
Timberland, Cl A *		4,400		87
Time Warner		474,704		14,550
Time Warner Cable, Cl A		73,258		3,955
TJX		20,900		933
TRW Automotive Holdings * (A)		35,900		1,492
VF (A)		43,312		3,509
Viacom, Cl B		136,786		4,950
WABCO Holdings *		6,500		273
Walt Disney		71,600		2,371
Warnaco Group *		3,500		179
Whirlpool		19,700		1,595
Wolverine World Wide		2,800		81
Yum! Brands		38,200		1,760
				164,337
Consumer Staples — 8.7%
Altria Group		73,700		1,770
Archer-Daniels-Midland		76,900		2,455
Brown-Forman, Cl B		19,000		1,171
Bunge (A)		10,400		615
Campbell Soup (A)		21,800		779
Clorox (A)		6,533		436
Coca-Cola		179,395		10,498
Colgate-Palmolive		71,282		5,479
ConAgra Foods		49,600		1,088
Corn Products International		8,900		334
CVS Caremark		128,000		4,028
Dean Foods * (A)		22,100		226
Del Monte Foods		40,800		535
Diageo ADR (A)		60,700		4,189
Dr Pepper Snapple Group		3,400		121
Herbalife		25,800		1,557
Hershey (A)		37,498		1,784
Kellogg		114,400		5,778
Kimberly-Clark		48,899		3,181
Kraft Foods, Cl A		22,900		707
Kroger		120,800		2,617
Lorillard		10,300		827
Mead Johnson Nutrition, Cl A		60,506		3,443
Molson Coors Brewing, Cl B		15,800		746
NBTY *		874		48
Nu Skin Enterprises, Cl A		2,800		81
PepsiCo		139,190		9,248
Philip Morris International		134,229		7,520
Prestige Brands Holdings *		11,500		114
Procter & Gamble		387,679		23,249
Ralcorp Holdings *		3,000		175
Reynolds American		37,166		2,207
Safeway (A)		109,900		2,325
Sara Lee		109,959		1,477

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Smart Balance *		9,000	$	35
Smithfield Foods * (A)		12,200		205
SUPERVALU (A)		67,954		784
SYSCO (A)		29,500		841
Tyson Foods, Cl A		293,796		4,707
Walgreen		211,605		7,089
Wal-Mart Stores		125,372		6,710
				121,179
Energy — 8.6%
Apache		65,610		6,414
Atwood Oceanics *		18,400		560
BP ADR		5,000		206
Cameron International *		60,677		2,607
Canadian Natural Resources		86,860		3,005
Chesapeake Energy		86,000		1,948
Chevron		283,069		22,943
Complete Production Services *		3,500		72
ConocoPhillips		278,447		15,991
Continental Resources * (A)		2,600		121
Denbury Resources *		64,719		1,028
Devon Energy		67,939		4,398
Diamond Offshore Drilling (A)		10,200		691
Dresser-Rand Group *		9,900		365
EOG Resources (A)		51,000		4,741
Exxon Mobil		176,724		10,920
Frontier Oil		15,700		210
Frontline		7,094		202
Halliburton		139,300		4,607
Helmerich & Payne		7,500		303
Hess		40,100		2,371
Holly		8,100		233
Marathon Oil		185,877		6,153
Mariner Energy *		1,446		35
Murphy Oil		38,000		2,353
Nabors Industries *		19,800		358
National Oilwell Varco		64,700		2,877
Nexen		43,100		866
Noble		16,100		544
Occidental Petroleum		30,800		2,412
Oil States International *		21,000		978
Patterson-UTI Energy		47,300		808
Range Resources		43,879		1,673
Rowan * (A)		20,600		625
RPC		10,500		222
Schlumberger		42,089		2,593
Southwestern Energy *		50,363		1,684
Sunoco (A)		24,400		891
Transocean *		117,200		7,535
Unit *		17,600		656
Valero Energy		135,895		2,379
Williams		48,800		933
				120,511
Financials — 15.0%
Aflac		69,600		3,599
Agree Realty †		3,400		86
Allied World Assurance Holdings		3,184		180
Allstate		80,600		2,543
American Express		228,800		9,617

Description	Shares		Market Value ($ Thousands)
American Financial Group		32,500	$	994
American International Group * (A)		13,600		532
Ameriprise Financial		50,700		2,400
Annaly Capital Management † (A)		38,300		674
Apartment Investment & Management, Cl A †		49,500		1,058
Ares Capital		4,634		72
Ashford Hospitality Trust * †		4,500		41
Assurant		41,700		1,697
Axis Capital Holdings		29,700		978
Bancorp Rhode Island		900		25
Bank of America		1,175,212		15,407
Bank of Hawaii		18,100		813
Bank of New York Mellon		120,500		3,149
Berkshire Hathaway, Cl B *		106,700		8,822
Brandywine Realty Trust †		48,800		598
Brookfield Asset Management, Cl A		25,100		712
Capital One Financial		107,000		4,232
Chimera Investment †		1,060,985		4,191
Chubb		66,400		3,784
Citigroup *		2,726,500		10,633
CME Group		14,900		3,881
CNA Financial *		25,700		719
CNA Surety *		1,600		29
Comerica (A)		17,200		639
CommonWealth REIT †		31,550		808
Community Trust Bancorp		1,400		38
Compass Diversified Holdings		7,000		113
Credicorp		9,300		1,059
E*Trade Financial *		8,500		123
East West Bancorp		91,505		1,490
Endurance Specialty Holdings (A)		33,500		1,333
Everest Re Group		30,900		2,672
Fifth Third Bancorp		69,400		835
First Citizens BancShares, Cl A		2,031		376
First Commonwealth Financial		23,300		127
First Community Bancshares		2,500		32
Franklin Resources		12,700		1,358
Fulton Financial		96,175		871
General Growth Properties †		3,776		59
General Motors Financial *		987		24
Goldman Sachs Group		100,265		14,496
Hartford Financial Services Group		47,900		1,099
Hersha Hospitality Trust †		19,500		101
Hospitality Properties Trust †		59,900		1,338
Hudson City Bancorp		92,000		1,128
Huntington Bancshares		130,200		738
IntercontinentalExchange *		36,900		3,864
Invesco Mortgage Capital †		27,900		600
Jones Lang LaSalle		9,700		837
JPMorgan Chase		565,585		21,532
M&T Bank		801		66
Maiden Holdings		16,400		125
MetLife		79,800		3,068
MFA Financial †		79,000		603
Montpelier Re Holdings		13,300		230
Moody’s (A)		31,600		790

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Morgan Stanley		116,004	$	2,863
Nelnet, Cl A		6,000		137
New York Community Bancorp (A)		195,858		3,183
NewStar Financial *		4,400		33
NYSE Euronext		120,100		3,431
Oppenheimer Holdings, Cl A		1,600		45
Parkway Properties †		8,700		129
Phoenix *		15,700		33
PNC Financial Services Group		155,809		8,088
Presidential Life		7,200		71
Prudential Financial		83,215		4,509
Public Storage †		13,800		1,339
Ramco-Gershenson Properties †		5,000		53
Rayonier †		11,040		553
Regions Financial		18,484		134
Reinsurance Group of America, Cl A		14,500		700
RenaissanceRe Holdings (A)		28,115		1,686
Resource Capital †		78,000		495
SCBT Financial		3,000		94
Senior Housing Properties Trust †		28,600		672
SLM * (A)		18,100		209
State Street		68,300		2,572
Sunstone Hotel Investors * †		34,800		316
Symetra Financial		4,300		45
T. Rowe Price Group (A)		16,300		816
Taubman Centers †		18,900		843
Torchmark		29,900		1,589
Travelers		81,960		4,270
Unitrin		7,800		190
Unum Group		85,400		1,892
US Bancorp		199,400		4,311
Vornado Realty Trust †		13,600		1,163
Washington Federal		17,800		271
Weingarten Realty Investors † (A)		25,800		563
Wells Fargo		664,100		16,689
WesBanco		5,000		82
XL Group, Cl A (A)		38,900		843
				208,950
Health Care — 13.2%
Abbott Laboratories		140,706		7,351
Aetna		186,900		5,908
Allergan		135,417		9,009
Allscripts Healthcare Solutions *		7,500		138
AmerisourceBergen		97,728		2,996
Amgen *		276,647		15,246
Becton Dickinson		18,700		1,386
Biogen Idec *		58,045		3,257
Bristol-Myers Squibb		153,900		4,172
Bruker BioSciences *		22,900		322
C.R. Bard		1,800		147
Cardinal Health (A)		185,436		6,127
CareFusion *		3,300		82
Celgene *		70,661		4,071
Covidien		113,761		4,572
Cyberonics *		3,500		93
Eli Lilly		113,604		4,150
Express Scripts *		45,211		2,202

Description	Shares		Market Value ($ Thousands)
Forest Laboratories *		60,600	$	1,874
Genzyme *		44,800		3,171
Gilead Sciences *		93,124		3,316
Health Net *		26,700		726
Hill-Rom Holdings		6,900		248
Humana *		26,900		1,351
Idexx Laboratories * (A)		1,800		111
Impax Laboratories *		15,900		314
Intuitive Surgical * (A)		5,600		1,589
Invacare (A)		8,500		225
Johnson & Johnson		287,939		17,841
King Pharmaceuticals *		46,400		462
Laboratory Corp of America Holdings *		33,058		2,593
Life Technologies *		14,500		677
McKesson		76,444		4,723
Medco Health Solutions *		133,300		6,940
Medicines *		10,500		149
Medtronic		249,100		8,365
Merck		252,182		9,283
Mylan Laboratories * (A)		39,000		734
Novo Nordisk ADR (A)		41,600		4,095
Orthofix International *		900		28
Par Pharmaceutical *		3,200		93
Perrigo (A)		22,400		1,439
Pfizer		884,763		15,191
Questcor Pharmaceuticals * (A)		7,600		76
Sirona Dental Systems *		10,100		364
St. Jude Medical *		98,524		3,876
Stryker (A)		3,900		195
SXC Health Solutions *		10,800		394
Talecris Biotherapeutics Holdings *		682		16
Teva Pharmaceutical Industries ADR		35,929		1,895
Thermo Fisher Scientific *		47,600		2,279
UnitedHealth Group		389,983		13,692
Waters *		7,900		559
WellPoint *		60,874		3,448
Zimmer Holdings *		22,900		1,198
				184,759
Industrials — 9.1%
3M (A)		136,672		11,851
Amerco *		400		32
Ametek		7,000		334
Armstrong World Industries *		3,300		137
Boeing		88,812		5,910
Caterpillar		42,421		3,338
Continental Airlines, Cl B * (A)		34,989		869
Cooper Industries, Cl A		13,600		666
Copart *		2,100		69
Crane		17,700		672
CSX		34,200		1,892
Cummins		42,767		3,874
Danaher		56,902		2,311
Deere		16,700		1,165
Dover		23,500		1,227
Dun & Bradstreet (A)		14,400		1,068
Eaton		20,200		1,666
EMCOR Group *		23,800		585
Emerson Electric		70,511		3,713

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Ennis		7,300	$	130
Expeditors International of Washington (A)		84,100		3,888
FedEx (A)		19,200		1,642
Franklin Electric		900		30
Gardner Denver		19,600		1,052
General Dynamics		34,900		2,192
General Electric		1,080,501		17,558
Goodrich		36,900		2,721
Honeywell International		11,700		514
Hubbell, Cl B		1,800		91
IDEX		14,100		501
Illinois Tool Works		22,500		1,058
ITT (A)		35,600		1,667
JB Hunt Transport Services		2,200		76
Joy Global		20,287		1,427
KBR		56,400		1,390
Kennametal		9,100		281
L-3 Communications Holdings		28,200		2,038
Lockheed Martin		54,706		3,899
NACCO Industries, Cl A		1,900		166
Norfolk Southern		35,800		2,130
Northrop Grumman		67,406		4,087
Oshkosh Truck *		26,000		715
Owens Corning *		84,467		2,165
Parker Hannifin		22,200		1,555
Polypore International *		6,000		181
Precision Castparts		23,764		3,026
Quanta Services * (A)		91,800		1,751
Raytheon		62,700		2,866
Regal-Beloit		4,800		282
Republic Services		86,015		2,623
Rockwell Automation (A)		16,400		1,012
Rockwell Collins		65,461		3,813
RR Donnelley & Sons		57,000		967
SPX		900		57
Thomas & Betts *		15,800		648
Timken		22,700		871
Toro		5,200		292
Tyco International (A)		36,800		1,352
UAL * (A)		79,490		1,878
Union Pacific		23,300		1,906
United Parcel Service, Cl B		16,090		1,073
United Technologies		103,057		7,341
Waste Management (A)		22,656		810
WESCO International *		677		26
WW Grainger		2,131		254
				127,381
Information Technology — 20.6%
Acme Packet *		2,600		99
Activision Blizzard		213,000		2,305
Adobe Systems *		165,006		4,315
Advanced Micro Devices * (A)		344,323		2,448
Agilent Technologies *		17,700		591
Amdocs *		23,500		673
AOL *		17,600		436
Aon Hewitt, Cl A *		1,441		73
Apple *		131,135		37,210
Applied Materials		41,300		482
Arris Group *		4,700		46
Autodesk *		95,800		3,063

Description	Shares		Market Value ($ Thousands)
Avnet *		42,200	$	1,140
AVX		11,400		157
Brightpoint *		16,200		113
Broadcom, Cl A (A)		30,200		1,069
CA		14,900		315
Check Point Software Technologies *		61,504		2,271
Cisco Systems *		815,772		17,865
Citrix Systems *		103,903		7,090
Cognizant Technology Solutions, Cl A *		56,224		3,625
Computer Sciences		29,000		1,334
Corning		297,133		5,432
Dolby Laboratories, Cl A *		8,000		454
DST Systems		22,100		991
eBay *		127,200		3,104
EchoStar, Cl A *		2,000		38
Electronics for Imaging *		2,600		32
EMC * (A)		587,613		11,934
F5 Networks *		27,551		2,860
Flextronics International *		94,200		569
Google, Cl A *		12,500		6,572
Harris		41,100		1,820
Hewlett-Packard		156,076		6,566
IAC *		39,900		1,048
Ingram Micro, Cl A *		75,400		1,271
Intel		428,964		8,249
International Business Machines		114,133		15,310
Intuit *		158,200		6,931
Isilon Systems *		2,800		62
Itron *		5,500		337
Jabil Circuit		224,211		3,231
Juniper Networks *		35,600		1,081
Lam Research *		14,700		615
Lender Processing Services		3,600		120
Linear Technology		1,600		49
Marvell Technology Group *		71,900		1,259
Mastercard, Cl A		21,600		4,838
McAfee *		2,076		98
Micron Technology * (A)		427,993		3,086
Microsoft		1,071,454		26,240
MKS Instruments *		2,000		36
Multi-Fineline Electronix *		2,400		53
National Semiconductor		15,900		203
NetApp * (A)		70,845		3,527
Novellus Systems *		8,000		213
Nuance Communications * (A)		160,400		2,509
Oracle		294,940		7,919
Paychex		102,004		2,804
Plantronics		4,800		162
PMC - Sierra *		46,400		341
Polycom * (A)		55,400		1,511
Power-One * (A)		16,300		148
Qualcomm		329,600		14,872
Quest Software *		25,100		617
Rackspace Hosting * (A)		109,500		2,845
Red Hat * (A)		64,700		2,653
Research In Motion *		19,500		949
SAIC * (A)		35,700		571
Salesforce.com * (A)		25,569		2,858
SanDisk * (A)		23,000		843

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Seagate Technology *		34,100	$	402
Symantec *		60,400		916
Tech Data *		13,900		560
Teradata *		94,800		3,656
Texas Instruments (A)		505,000		13,706
Tyco Electronics		33,800		988
VeriSign * (A)		133,100		4,224
Visa, Cl A		158,207		11,748
Vishay Intertechnology * (A)		28,200		273
VMware, Cl A *		528		45
Western Digital *		45,800		1,300
Western Union		41,900		740
Xerox		176,500		1,827
Zebra Technologies, Cl A *		5,200		175
				287,111
Materials — 3.0%
Air Products & Chemicals (A)		2,600		215
Airgas (A)		1,152		78
Alcoa (A)		108,800		1,317
Allegheny Technologies (A)		70,038		3,253
Aptargroup		23,600		1,078
Ashland		33,000		1,609
Ball		14,400		847
Cabot		7,100		231
Celanese, Ser A		32,300		1,037
Commercial Metals		17,500		254
Cytec Industries		21,500		1,212
Dow Chemical		42,518		1,168
E.I. Du Pont de Nemours		40,200		1,794
Eastman Chemical		13,500		999
Ecolab		5,300		269
H.B. Fuller		2,900		58
Huntsman		130,224		1,505
International Paper		49,666		1,080
Lubrizol		33,184		3,517
Monsanto (A)		78,500		3,762
Nalco Holding (A)		126,100		3,179
Newmont Mining		57,718		3,625
Nucor (A)		10,600		405
Pactiv *		16,368		540
PolyOne *		8,500		103
Reliance Steel & Aluminum		20,700		860
Rock-Tenn, Cl A		19,400		966
Schnitzer Steel Industries, Cl A		12,900		623
Sealed Air		7,142		160
Sherwin-Williams (A)		9,800		737
Sonoco Products		28,700		960
Southern Copper		19,500		685
Spartech *		6,900		57
Steel Dynamics		5,900		83
Syngenta ADR		66,300		3,301
Temple-Inland		1,800		34
Zep		3,000		52
				41,653
Telecommunication Services — 3.4%
American Tower, Cl A *		105,019		5,383
AT&T		711,170		20,340
BCE		22,700		738
Crown Castle International *		131,000		5,784
Frontier Communications		24,748		202
NII Holdings *		55,648		2,287

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Qwest Communications International (A)		23,100	$	145
Sprint Nextel *		333,500		1,544
Telephone & Data Systems		21,200		695
USA Mobility		2,600		42
Verizon Communications		306,671		9,994
				47,154
Utilities — 3.0%
AES *		578,700		6,568
AGL Resources		9,100		349
Allegheny Energy		2,400		59
Alliant Energy		12,600		458
Ameren		24,100		684
American Electric Power		70,100		2,540
American Water Works		21,400		498
Atmos Energy		21,600		632
Constellation Energy Group		21,378		689
DPL		47,100		1,231
DTE Energy		18,300		841
Edison International		109,700		3,772
Energen		25,400		1,161
Entergy		26,300		2,013
Exelon		206,972		8,812
FirstEnergy (A)		26,000		1,002
Mirant * (A)		42,847		427
NextEra Energy		12,600		685
NiSource		47,100		820
NorthWestern		12,300		351
NRG Energy *		30,400		633
NV Energy (A)		68,200		897
OGE Energy		20,600		821
Portland General Electric		12,400		251
Public Service Enterprise Group		101,000		3,341
Southern Union		27,700		667
TECO Energy		39,600		686
Xcel Energy (A)		39,500		907
				41,795
Total Common Stock (Cost $1,262,806) ($ Thousands)				1,344,830
AFFILIATED PARTNERSHIP — 7.0%
SEI Liquidity Fund, L.P., 0.230%  ** †† (B)		97,897,411		97,897
Total Affiliated Partnership (Cost $97,897) ($ Thousands)				97,897
CASH EQUIVALENT — 3.1%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		42,847,864		42,848
Total Cash Equivalent (Cost $42,848) ($ Thousands)				42,848
U.S. TREASURY OBLIGATIONS (C) (D) — 0.3%
U.S. Treasury Bills
0.326%, 02/10/11	$	400		400

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Fund

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
0.200%, 12/16/10	$	4,281	$	4,280
Total U.S. Treasury Obligations (Cost $4,679) ($ Thousands)				4,680
Total Investments — 106.8% (Cost $1,408,230) ($ Thousands)			$	1,490,255

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		47		Dec-2010	$	49
S&P Composite Index		104		Dec-2010		651
S&P Mid 400 Index E-MINI		60		Dec-2010		190
					$	890

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,395,899 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $94,814 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $97,897 ($Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

Ser — Series

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Fund

September 30, 2010

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,344,830	$	—	$	—	$	1,344,830
Affiliated Partnership		—		97,897		—		97,897
Cash Equivalent		42,848		—		—		42,848
U.S. Treasury Obligations		—		4,680		—		4,680
Total Investments in Securities	$	1,387,678	$	102,577	$	—	$	1,490,255

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts *	$	890	$	—	$	—	$	890

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

7 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 98.1% ‡
Consumer Discretionary — 7.4%
Aaron Rents (A)		9,700	$	179
Abercrombie & Fitch, Cl A (A)		2,200		87
Aeropostale *		54,300		1,262
American Eagle Outfitters		10,000		150
Autoliv (A)		62,900		4,109
Autozone * (A)		9,000		2,060
Brinker International (A)		83,800		1,580
Cablevision Systems, Cl A		35,000		917
Carnival		3,900		149
CBS, Cl B (A)		7,500		119
Coach (A)		63,000		2,707
Comcast, Cl A		1,001,400		17,752
DIRECTV, Cl A *		76,400		3,180
Discovery Communications, Cl A * (A)		2,600		113
DISH Network, Cl A		46,300		887
DR Horton		8,500		94
Foot Locker		48,300		702
Ford Motor * (A)		179,800		2,201
Fortune Brands		1,900		94
GameStop, Cl A * (A)		9,700		191
Gannett (A)		150,300		1,838
Gap		276,800		5,160
Garmin (A)		20,400		619
Genuine Parts		8,900		397
H&R Block		11,600		150
Harman International Industries *		3,100		104
Hyatt Hotels, Cl A *		2,500		94
Jarden		8,600		268
Johnson Controls		14,800		451
Lamar Advertising, Cl A * (A)		2,600		83
Lear *		2,000		158
Leggett & Platt		8,500		193
Lennar, Cl A		9,700		149
Liberty Global, Cl A * (A)		50,600		1,559
Liberty Media - Capital, Ser A *		17,200		895
Liberty Media - Interactive, Cl A *		23,100		317
Liberty Media - Starz, Ser A *		9,900		642
Lowe’s		24,100		537
Macy’s		91,700		2,117
Madison Square Garden, Cl A *		12,550		265
Mattel		111,800		2,623
McGraw-Hill		900		30
MGM Mirage * (A)		6,600		74
Mohawk Industries * (A)		500		27
New York Times, Cl A * (A)		22,200		172
Newell Rubbermaid (A)		231,800		4,128
News, Cl A (A)		437,400		5,712
PetSmart		41,200		1,442
RadioShack		76,200		1,625
Regal Entertainment Group, Cl A (A)		13,500		177
Ross Stores (A)		25,000		1,365
Royal Caribbean Cruises * (A)		4,400		139
Sears Holdings * (A)		4,500		325
Service International		110,400		952
Snap-On		1,900		88
Stanley Black & Decker		13,540		830
Thomson Reuters		20,100		754

Description	Shares		Market Value ($ Thousands)
Time Warner		308,933	$	9,469
Time Warner Cable, Cl A		81,824		4,418
TJX (A)		53,400		2,383
TRW Automotive Holdings *		3,000		125
VF		1,100		89
Viacom, Cl B		171,400		6,203
Virgin Media (A)		24,200		557
Walt Disney		274,000		9,072
Washington Post, Cl B (A)		300		120
Whirlpool (A)		54,400		4,404
Wyndham Worldwide		2,300		63
				111,895
Consumer Staples — 9.8%
Altria Group		249,200		5,986
Archer-Daniels-Midland		165,200		5,273
BJ’s Wholesale Club *		38,900		1,614
Brown-Forman, Cl B (A)		48,500		2,989
Campbell Soup (A)		82,000		2,932
Clorox		3,300		220
Coca-Cola		104,300		6,104
Coca-Cola Enterprises		2,400		74
Colgate-Palmolive		33,100		2,544
ConAgra Foods		132,600		2,909
Constellation Brands, Cl A *		33,800		598
Corn Products International		63,200		2,370
CVS Caremark		429,100		13,504
Dean Foods *		17,700		181
Del Monte Foods		219,700		2,880
Dr Pepper Snapple Group (A)		35,100		1,247
Energizer Holdings * (A)		31,700		2,131
Flowers Foods (A)		13,400		333
General Mills		38,300		1,399
Hansen Natural *		3,900		182
Herbalife		53,700		3,241
Hershey		15,900		757
HJ Heinz (A)		13,700		649
Hormel Foods		14,400		642
JM Smucker		18,600		1,126
Kellogg		2,900		146
Kimberly-Clark		28,700		1,867
Kraft Foods, Cl A		111,659		3,446
Kroger		225,800		4,891
McCormick (A)		11,500		483
Mead Johnson Nutrition, Cl A		29,600		1,684
NBTY *		2,000		110
PepsiCo		109,800		7,295
Philip Morris International		64,900		3,636
Procter & Gamble		517,500		31,035
Ralcorp Holdings *		59,800		3,497
Reynolds American		47,100		2,797
Safeway (A)		245,800		5,201
Sara Lee		98,500		1,323
Smithfield Foods * (A)		54,300		914
SUPERVALU (A)		111,437		1,285
Tyson Foods, Cl A		77,400		1,240
Wal-Mart Stores		283,700		15,184
				147,919
Energy — 11.8%
Anadarko Petroleum		48,800		2,784
Apache (A)		113,700		11,115
Baker Hughes (A)		34,479		1,469

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Cabot Oil & Gas (A)		2,300	$	69
Cameron International *		1,800		77
Chesapeake Energy		800		18
Chevron		600,800		48,695
Cimarex Energy (A)		28,500		1,886
ConocoPhillips		426,086		24,470
Consol Energy		2,100		78
Denbury Resources *		26,800		426
Devon Energy		99,800		6,461
Diamond Offshore Drilling (A)		20,700		1,403
Exterran Holdings * (A)		19,300		438
Exxon Mobil		245,294		15,157
Forest Oil *		12,300		365
Frontier Oil		7,100		95
Frontline		6,500		185
Halliburton		56,700		1,875
Hess		77,100		4,558
Marathon Oil		277,700		9,192
Mariner Energy * (A)		3,700		90
Massey Energy		1,800		56
Murphy Oil		86,400		5,350
National Oilwell Varco		122,700		5,456
Noble		47,900		1,619
Noble Energy		1,000		75
Occidental Petroleum		193,600		15,159
Oceaneering International *		2,300		124
Oil States International *		38,800		1,806
Patterson-UTI Energy		193,000		3,296
Peabody Energy (A)		11,200		549
Pioneer Natural Resources (A)		13,600		884
QEP Resources		13,500		407
Rowan * (A)		61,200		1,858
Schlumberger		11,765		725
SM Energy (A)		8,200		307
Spectra Energy		19,300		435
Sunoco (A)		20,600		752
Tesoro (A)		96,900		1,295
Tidewater (A)		25,900		1,161
Valero Energy		218,600		3,828
Whiting Petroleum *		4,100		392
Williams		135,300		2,585
				179,025
Financials — 25.5%
ACE		74,400		4,334
Aflac		32,700		1,691
Alexandria Real Estate Equities † (A)		16,400		1,148
Alleghany *		2,000		606
Allied World Assurance Holdings		1,700		96
Allstate		216,200		6,821
AMB Property † (A)		5,400		143
American Express		38,200		1,606
American Financial Group		93,500		2,859
Ameriprise Financial (A)		128,900		6,101
Annaly Capital Management † (A)		93,600		1,647
AON (A)		47,200		1,846
Apartment Investment & Management, Cl A † (A)		100,700		2,153
Arch Capital Group *		9,800		821
Ares Capital		15,800		247
Arthur J. Gallagher		300		8

Description	Shares		Market Value ($ Thousands)
Associated Banc-Corp (A)		30,400	$	401
Assurant		104,200		4,241
AvalonBay Communities † (A)		3,688		383
Axis Capital Holdings		53,000		1,746
Bank of America		2,482,269		32,543
Bank of Hawaii (A)		8,500		382
Bank of New York Mellon		306,422		8,007
BB&T (A)		66,900		1,611
Berkshire Hathaway, Cl B *		272,600		22,539
BlackRock		700		119
BOK Financial		1,800		81
Boston Properties † (A)		5,800		482
Brandywine Realty Trust †		16,400		201
BRE Properties, Cl A †		10,200		423
Brookfield Asset Management, Cl A		74,900		2,125
Brown & Brown		4,000		81
Camden Property Trust †		6,000		288
Capital One Financial (A)		69,100		2,733
CapitalSource		50,000		267
Chimera Investment †		26,000		103
Chubb		148,400		8,457
Cincinnati Financial (A)		45,400		1,310
CIT Group *		12,500		510
Citigroup *		3,809,800		14,858
City National (A)		14,200		754
CME Group		11,700		3,047
Comerica (A)		45,900		1,705
Commerce Bancshares		24,700		929
CommonWealth REIT †		3,375		86
Credicorp		16,900		1,925
Cullen/Frost Bankers		11,900		641
Developers Diversified Realty †		12,400		139
Digital Realty Trust †		1,200		74
Discover Financial Services		37,800		630
Douglas Emmett † (A)		39,200		686
East West Bancorp		4,600		75
Endurance Specialty Holdings		90,700		3,610
Equity Residential † (A)		17,700		842
Erie Indemnity, Cl A		3,300		185
Essex Property Trust † (A)		3,400		372
Everest Re Group		81,800		7,073
Federal Realty Investment Trust †		1,200		98
Fidelity National Financial, Cl A		8,100		127
Fifth Third Bancorp		198,600		2,389
First Horizon National * (A)		12,971		148
First Niagara Financial Group (A)		6,400		74
Forest City Enterprises, Cl A * (A)		8,700		112
Franklin Resources		42,800		4,575
Fulton Financial		100,800		913
General Growth Properties †		11,700		183
General Motors Financial *		7,300		179
Genworth Financial, Cl A *		60,100		734
Goldman Sachs Group		121,000		17,494
Hanover Insurance Group		3,700		174
Hartford Financial Services Group		78,400		1,799
HCC Insurance Holdings		2,800		73
HCP †		2,900		104
Health Care † (A)		900		43
Hospitality Properties Trust †		95,300		2,128

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Host Hotels & Resorts † (A)		40,545	$	587
Hudson City Bancorp		212,200		2,602
Huntington Bancshares (A)		503,000		2,852
Invesco		1,800		38
Jones Lang LaSalle (A)		28,000		2,415
JPMorgan Chase		1,087,400		41,397
Keycorp (A)		531,800		4,233
Kimco Realty †		18,400		290
Liberty Property Trust † (A)		2,300		73
Lincoln National		199,967		4,783
Loews		64,900		2,460
M&T Bank (A)		17,800		1,456
Macerich † (A)		3,657		157
Markel *		1,500		517
Marsh & McLennan		9,500		229
Marshall & Ilsley (A)		169,600		1,194
MBIA * (A)		56,500		568
MetLife (A)		162,200		6,237
Morgan Stanley		269,900		6,661
NASDAQ OMX Group *		15,000		292
Nationwide Health Properties †		2,800		108
New York Community Bancorp (A)		118,700		1,929
Northern Trust		9,100		439
NYSE Euronext		90,900		2,597
Old Republic International (A)		21,400		296
PartnerRe		3,800		305
People’s United Financial		19,400		254
Plum Creek Timber † (A)		13,300		470
PNC Financial Services Group		210,455		10,925
Principal Financial Group		10,800		280
Progressive		14,800		309
Protective Life		11,300		246
Prudential Financial		136,700		7,406
Public Storage †		26,700		2,591
Raymond James Financial (A)		46,300		1,173
Realty Income † (A)		10,900		368
Regions Financial (A)		424,684		3,088
Reinsurance Group of America, Cl A		4,200		203
RenaissanceRe Holdings (A)		74,300		4,455
Senior Housing Properties Trust † (A)		70,400		1,655
Simon Property Group † (A)		8,911		827
SL Green Realty † (A)		4,900		310
SLM *		73,100		844
StanCorp Financial Group		22,000		836
State Street		50,900		1,917
SunTrust Banks (A)		39,000		1,007
T. Rowe Price Group (A)		44,900		2,248
Taubman Centers † (A)		72,600		3,239
TCF Financial (A)		23,300		377
Torchmark		14,800		787
Transatlantic Holdings		4,500		229
Travelers (A)		224,900		11,717
UDR †		55,300		1,168
Unitrin		27,000		659
Unum Group		135,000		2,990
US Bancorp		316,300		6,838
Validus Holdings		15,700		414
Valley National Bancorp (A)		58,200		751
Ventas † (A)		9,100		469

Description	Shares		Market Value ($ Thousands)
Vornado Realty Trust †		27,900	$	2,386
Washington Federal		61,700		941
Wells Fargo		1,255,395		31,548
Weyerhaeuser (A)		7,297		115
White Mountains Insurance Group		3,200		987
Willis Group Holdings		49,300		1,519
WR Berkley		31,800		861
XL Group, Cl A (A)		7,400		160
Zions Bancorporation (A)		68,900		1,472
				385,892
Health Care — 14.8%
Abbott Laboratories		46,500		2,429
Aetna		129,100		4,081
Alere * (A)		1,300		40
AmerisourceBergen		100,200		3,072
Amgen *		319,400		17,602
Baxter International		69,900		3,335
Biogen Idec * (A)		58,600		3,288
Bio-Rad Laboratories, Cl A *		1,200		109
Bristol-Myers Squibb		218,400		5,921
Cardinal Health		98,600		3,258
CareFusion *		30,000		745
Cephalon *		17,900		1,118
Charles River Laboratories International *		4,200		139
Cigna		76,700		2,744
Community Health Systems *		3,800		118
Cooper		1,100		51
Coventry Health Care *		105,900		2,280
Covidien		63,400		2,548
Eli Lilly		178,700		6,528
Endo Pharmaceuticals Holdings *		89,700		2,982
Forest Laboratories *		165,100		5,107
Genzyme *		5,100		361
Gilead Sciences *		109,400		3,896
Health Net *		107,500		2,923
Hill-Rom Holdings		5,500		197
Hologic *		11,400		183
Humana *		64,700		3,250
Johnson & Johnson		487,600		30,212
Kinetic Concepts * (A)		45,900		1,679
King Pharmaceuticals *		377,000		3,755
Life Technologies *		35,400		1,653
LifePoint Hospitals *		2,400		84
McKesson		18,800		1,161
Medco Health Solutions *		30,300		1,577
Mednax *		500		27
Medtronic		118,900		3,993
Merck		667,057		24,554
Mylan Laboratories * (A)		25,700		483
Omnicare		6,600		158
PerkinElmer		30,600		708
Pfizer		2,639,398		45,319
Quest Diagnostics		1,500		76
Thermo Fisher Scientific *		13,500		646
UnitedHealth Group		398,100		13,977
Universal Health Services, Cl B		10,800		420
Watson Pharmaceuticals *		4,900		207
WellPoint *		220,300		12,478

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Zimmer Holdings *		56,400	$	2,951
				224,423
Industrials — 8.4%
AGCO * (A)		1,600		62
Alexander & Baldwin (A)		2,200		77
AMR *		14,000		88
Avery Dennison (A)		5,100		189
BE Aerospace *		7,800		236
Boeing		64,000		4,259
Carlisle		7,800		233
Corrections Corp of America * (A)		3,200		79
CSX		44,300		2,451
Danaher		4,400		179
Deere		11,200		782
Dover		37,200		1,942
Dun & Bradstreet (A)		31,500		2,336
Eaton		9,700		800
EMCOR Group * (A)		57,300		1,409
Equifax		14,700		459
FedEx (A)		35,100		3,001
Flowserve		15,300		1,674
Fluor		900		45
Foster Wheeler *		106,100		2,595
Gardner Denver		36,300		1,949
General Dynamics		155,100		9,742
General Electric		2,334,600		37,937
Goodrich		10,300		759
Honeywell International		37,000		1,626
Hubbell, Cl B		1,800		91
Ingersoll-Rand		1,900		68
Jacobs Engineering Group *		3,100		120
Kansas City Southern * (A)		20,600		771
KBR		91,700		2,259
Kirby *		1,900		76
L-3 Communications Holdings		67,600		4,886
Lockheed Martin		49,200		3,507
Manpower		3,600		188
Masco		6,800		75
Norfolk Southern		42,100		2,505
Northrop Grumman		145,900		8,846
Owens Corning *		10,200		261
Parker Hannifin		6,200		434
Raytheon		199,100		9,101
Republic Services		10,100		308
Rockwell Collins		10,700		623
RR Donnelley & Sons (A)		259,300		4,398
Southwest Airlines (A)		118,100		1,544
Spirit Aerosystems Holdings, Cl A *		13,500		269
Teleflex		14,000		795
Textron (A)		6,500		134
Thomas & Betts *		12,500		513
Towers Watson, Cl A		2,200		108
Tyco International		20,500		753
UAL * (A)		16,900		399
Union Pacific		59,800		4,891
United Technologies		38,100		2,714
Waste Connections *		8,400		333
Waste Management		10,000		357

Description	Shares		Market Value ($ Thousands)
WESCO International *		7,400	$	291
				126,527
Information Technology — 6.2%
Advanced Micro Devices * (A)		40,100		285
Amdocs * (A)		68,500		1,963
AOL *		14,839		367
Atmel *		18,500		147
Avnet *		75,500		2,039
Computer Sciences		55,000		2,530
CoreLogic		11,600		222
Corning		325,700		5,954
eBay *		61,400		1,498
Fidelity National Information Services		2,200		60
Harris		67,600		2,994
Hewlett-Packard		132,300		5,566
IAC *		87,500		2,299
Ingram Micro, Cl A *		105,100		1,772
Intel		593,100		11,405
International Business Machines		36,700		4,923
Itron *		1,300		80
Jabil Circuit		4,500		65
Kla-Tencor		400		14
Lexmark International, Cl A *		34,700		1,548
Mastercard, Cl A		9,625		2,156
MEMC Electronic Materials *		8,200		98
Micron Technology * (A)		212,300		1,531
Microsoft		929,200		22,756
Molex (A)		6,300		132
Motorola *		3,400		29
Novell *		48,000		287
Novellus Systems *		2,000		53
Oracle		77,000		2,068
Seagate Technology *		100,100		1,179
Symantec *		143,200		2,172
Tech Data * (A)		38,500		1,551
Tellabs		36,800		274
Texas Instruments		258,500		7,016
Vishay Intertechnology * (A)		181,500		1,757
Western Digital *		41,200		1,170
Xerox		349,709		3,619
Yahoo! *		11,900		169
				93,748
Materials — 3.2%
Air Products & Chemicals (A)		18,600		1,540
Alcoa (A)		105,500		1,277
Alpha Natural Resources *		1,000		41
Aptargroup		2,000		91
Ashland		33,600		1,639
Ball		77,900		4,584
Cabot		26,100		850
Cytec Industries		50,600		2,853
Domtar		1,600		103
Dow Chemical (A)		219,900		6,038
E.I. Du Pont de Nemours		21,000		937
Eastman Chemical		76,500		5,661
Freeport-McMoRan Copper & Gold, Cl B		21,100		1,802
Huntsman		33,000		382
International Paper		87,100		1,895
Lubrizol		36,000		3,815

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
MeadWestvaco		32,900	$	802
Nucor		9,100		347
Owens-Illinois *		211,400		5,932
Packaging Corp of America		4,300		100
PPG Industries (A)		22,800		1,660
Rock-Tenn, Cl A		27,400		1,365
Royal Gold		1,900		95
RPM International		14,200		283
Sherwin-Williams (A)		4,700		353
Sonoco Products		53,500		1,789
Southern Copper (A)		56,800		1,995
United States Steel (A)		6,700		294
Walter Energy		1,000		81
				48,604
Telecommunication Services — 5.2%
AT&T		1,794,095		51,311
CenturyTel (A)		108,987		4,301
Frontier Communications (A)		133,745		1,093
MetroPCS Communications * (A)		35,000		366
NII Holdings * (A)		11,700		481
Qwest Communications International (A)		222,000		1,392
Sprint Nextel *		79,800		369
Telephone & Data Systems		72,000		2,362
Verizon Communications (A)		524,100		17,080
Windstream (A)		13,600		167
				78,922
Utilities — 5.8%
AGL Resources		2,200		84
Alliant Energy		88,700		3,224
Ameren		103,100		2,928
American Electric Power		259,400		9,398
American Water Works		33,900		789
Aqua America (A)		45,000		918
Centerpoint Energy		33,500		527
CMS Energy (A)		149,200		2,689
Consolidated Edison (A)		21,500		1,037
Constellation Energy Group		65,500		2,112
Dominion Resources (A)		22,000		961
DPL		70,900		1,853
DTE Energy		96,500		4,432
Duke Energy		24,700		438
Edison International		139,000		4,780
Energen		76,400		3,493
Entergy		78,600		6,015
Exelon (A)		132,600		5,646
FirstEnergy (A)		42,100		1,623
Great Plains Energy		18,200		344
Hawaiian Electric Industries		38,300		863
Integrys Energy Group (A)		34,400		1,791
ITC Holdings		3,000		187
Mirant *		306,000		3,048
National Fuel Gas		9,900		513
NextEra Energy		1,900		103
NiSource (A)		45,400		790
Northeast Utilities		33,300		985
NRG Energy *		68,900		1,434
NSTAR		27,100		1,066
NV Energy		221,700		2,915
OGE Energy		8,600		343
Oneok		18,300		824

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Pepco Holdings (A)		76,900	$	1,430
PG&E (A)		49,500		2,248
Pinnacle West Capital		79,100		3,265
PPL		75,400		2,053
Progress Energy		3,700		164
Public Service Enterprise Group		112,000		3,705
Questar		13,900		244
SCANA		11,700		472
Southern		18,700		696
Southern Union		116,100		2,793
TECO Energy (A)		35,000		606
UGI		5,900		169
Vectren		8,900		230
Westar Energy		26,700		647
Wisconsin Energy		14,000		809
Xcel Energy		20,900		480
				88,164
Total Common Stock (Cost $1,389,684) ($ Thousands)				1,485,119
AFFILIATED PARTNERSHIP — 8.5%
SEI Liquidity Fund, L.P., 0.230% ** †† (B)		134,650,092		129,626
Total Affiliated Partnership (Cost $134,650) ($ Thousands)				129,626
CASH EQUIVALENT — 1.9%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		28,513,155		28,513
Total Cash Equivalent (Cost $28,513) ($ Thousands)				28,513
U.S. TREASURY OBLIGATION (C) (D) — 0.4%
U.S. Treasury Bills
0.200%, 12/16/10	$	5,522		5,520
Total U.S. Treasury Obligation (Cost $5,519) ($ Thousands)				5,520
Total Investments — 108.9% (Cost $1,558,366) ($ Thousands)			$	1,648,778

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P Composite Index		80		Dec-2010	$	636

For the period ended September 30, 2010 , the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,514,440 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Value Fund

September 30, 2010

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $130,963 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $129,626 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

Ser — Series

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,485,119	$	—	$	—	$	1,485,119
Affiliated Partnership		—		129,626		—		129,626
Cash Equivalent		28,513		—		—		28,513
U.S. Treasury Obligation		—		5,520		—		5,520
Total Investments in Securities	$	1,513,632	$	135,146	$	—	$	1,648,778

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts *	$	636	$	—	$	—	$	636

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 92.3% ‡
Consumer Discretionary — 13.9%
Aaron Rents		25,100	$	463
Advance Auto Parts		2,400		141
Aeropostale *		70,300		1,634
Amazon.com *		129,216		20,295
Apollo Group, Cl A *		115,700		5,941
Autoliv		3,200		209
Autozone *		12,269		2,808
Bed Bath & Beyond *		42,090		1,827
Big Lots *		21,800		725
BorgWarner * (A)		90,000		4,736
Brinker International		8,200		155
Career Education *		33,200		713
Carmax *		10,700		298
Carnival		9,700		371
CBS, Cl B		6,900		109
Chipotle Mexican Grill, Cl A *		6,200		1,066
Coach		88,255		3,792
Darden Restaurants		51,900		2,220
Dick’s Sporting Goods *		8,900		250
DIRECTV, Cl A *		169,156		7,042
Discovery Communications, Cl A *		12,400		540
Dollar Tree *		3,500		171
Family Dollar Stores		62,000		2,738
Ford Motor *		388,800		4,759
Fortune Brands		8,300		409
Fossil *		1,800		97
Garmin		4,200		127
Gentex		1,900		37
Harley-Davidson		6,800		194
Harman International Industries *		1,000		33
Hasbro		43,900		1,954
Hillenbrand		23,600		508
Home Depot		50,800		1,609
Interpublic Group *		11,500		115
John Wiley & Sons, Cl A		11,200		458
Las Vegas Sands *		27,800		969
Leggett & Platt		28,600		651
Limited Brands		139,800		3,744
Lowe’s		450,916		10,051
Macy’s		10,400		240
Marriott International, Cl A		18,400		659
Mattel		91,100		2,137
McDonald’s		240,925		17,951
McGraw-Hill		36,000		1,190
MGM Mirage *		11,000		124
Mohawk Industries *		2,000		107
NetFlix * (A)		57,421		9,311
News, Cl A		10,400		136
Nike, Cl B (A)		207,040		16,592
Nordstrom		114,900		4,274
Omnicom Group		2,500		99
O’Reilly Automotive *		17,600		936
Panera Bread, Cl A *		12,400		1,099
PetSmart		58,300		2,041
Phillips-Van Heusen		19,400		1,167
Polo Ralph Lauren		11,500		1,033
priceline.com (A)		57,300		19,960
Regal Entertainment Group, Cl A		4,600		60

Description	Shares		Market Value ($ Thousands)
Ross Stores		25,600	$	1,398
Royal Caribbean Cruises *		8,700		274
Scripps Networks Interactive, Cl A		25,600		1,218
Staples		451,700		9,450
Starbucks		347,326		8,885
Starwood Hotels & Resorts Worldwide		49,300		2,591
Strayer Education		1,900		331
Target		236,747		12,652
Tempur-Pedic International *		38,300		1,187
Thomson Reuters		14,100		529
Tiffany		4,300		202
Time Warner		146,549		4,492
TJX		21,500		960
Tractor Supply		14,700		583
TRW Automotive Holdings *		23,500		977
Urban Outfitters *		18,100		569
VF (A)		48,642		3,941
Viacom, Cl B		67,033		2,426
WABCO Holdings *		40,000		1,677
Whirlpool		12,100		980
Williams-Sonoma		41,100		1,303
WMS Industries *		3,300		126
Wynn Resorts		28,200		2,447
Yum! Brands		38,310		1,764
				224,037
Consumer Staples — 11.3%
Altria Group		147,497		3,543
Avon Products		67,562		2,170
Brown-Forman, Cl B		18,900		1,165
Campbell Soup		31,200		1,115
Church & Dwight		22,300		1,448
Coca-Cola		358,845		21,000
Colgate-Palmolive		101,619		7,811
ConAgra Foods		19,700		432
Costco Wholesale		52,620		3,394
CVS Caremark		23,231		731
Diageo ADR		125,070		8,631
Dr Pepper Snapple Group		16,500		586
Estee Lauder, Cl A		65,100		4,116
Flowers Foods		14,800		368
General Mills		82,900		3,029
Green Mountain Coffee Roasters *		15,300		477
Hansen Natural *		29,000		1,352
Herbalife		6,100		368
Hershey		16,500		785
HJ Heinz		52,900		2,506
Kellogg		257,300		12,996
Kimberly-Clark		89,927		5,850
Kraft Foods, Cl A		36,260		1,119
McCormick		34,700		1,459
Mead Johnson Nutrition, Cl A		124,440		7,082
PepsiCo		398,391		26,469
Philip Morris International		119,397		6,688
Procter & Gamble		471,306		28,264
Sara Lee		210,700		2,830
SYSCO		31,700		904
Walgreen (A)		409,877		13,731
Wal-Mart Stores		149,646		8,009

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Whole Foods Market *		37,000	$	1,373
				181,801
Energy — 5.2%
Arch Coal		8,700		232
Baker Hughes		3,500		149
Cameron International * (A)		116,145		4,989
Canadian Natural Resources		166,262		5,753
Chevron		5,300		430
Cimarex Energy		27,300		1,807
Concho Resources *		7,600		503
ConocoPhillips		49,200		2,826
Core Laboratories		20,600		1,814
Denbury Resources * (A)		123,882		1,968
EOG Resources (A)		118,500		11,017
Exxon Mobil		238,600		14,743
FMC Technologies *		3,900		266
Forest Oil *		13,000		386
Frontline		3,500		99
Halliburton		322,910		10,679
Marathon Oil		18,600		616
Occidental Petroleum		23,100		1,809
Range Resources (A)		83,990		3,202
Rowan *		3,300		100
Schlumberger		141,553		8,721
SM Energy		16,900		633
Southwestern Energy *		144,592		4,835
Transocean *		101,700		6,538
Weatherford International *		5,600		96
Whiting Petroleum *		1,200		115
				84,326
Financials — 4.5%
Aflac		6,634		343
American Express		332,333		13,968
Ameriprise Financial		15,300		724
Apartment Investment & Management, Cl A †		40,800		872
Bank of Hawaii		3,600		162
Bank of New York Mellon		252,001		6,585
Brown & Brown		6,600		133
CB Richard Ellis Group, Cl A *		40,900		747
Charles Schwab		91,225		1,268
CME Group		35,855		9,338
Digital Realty Trust †		23,300		1,438
Equity Residential †		10,300		490
Erie Indemnity, Cl A		13,100		735
Essex Property Trust †		8,000		876
Federal Realty Investment Trust †		3,400		278
Franklin Resources		8,100		866
General Growth Properties †		17,300		270
Genworth Financial, Cl A *		74,400		909
Goldman Sachs Group		24,400		3,528
IntercontinentalExchange *		70,900		7,425
Jones Lang LaSalle		12,900		1,113
JPMorgan Chase		161,790		6,159
MetLife		41,400		1,592
Moody’s		2,700		68
Morgan Stanley		44,910		1,108
Northern Trust		37,870		1,827
NYSE Euronext		20,300		580
People’s United Financial		71,780		940

Description	Shares		Market Value ($ Thousands)
Plum Creek Timber †		27,400	$	967
Public Storage †		12,800		1,242
Rayonier †		4,000		200
Simon Property Group †		400		37
UDR †		4,700		99
Ventas †		4,700		242
Vornado Realty Trust †		2,900		248
Waddell & Reed Financial, Cl A		24,400		667
Wells Fargo		194,600		4,890
				72,934
Health Care — 13.1%
Abbott Laboratories		354,844		18,537
Alcon		500		83
Alexion Pharmaceuticals *		15,600		1,004
Allergan		220,503		14,670
AmerisourceBergen		173,500		5,320
Amgen *		108,355		5,971
Amylin Pharmaceuticals *		33,600		701
Baxter International		67,714		3,231
Becton Dickinson		2,200		163
Biogen Idec *		25,430		1,427
BioMarin Pharmaceuticals *		33,200		742
C.R. Bard		1,800		147
Cardinal Health		11,100		367
CareFusion *		4,600		114
Celgene *		103,151		5,943
Cerner *		2,400		202
Community Health Systems *		1,400		43
Covance *		18,000		842
Covidien		109,123		4,386
DaVita *		14,400		994
Dendreon *		9,800		404
Edwards Lifesciences *		69,000		4,626
Eli Lilly		6,800		248
Emergency Medical Services, Cl A *		2,500		133
Express Scripts *		140,301		6,833
Gen-Probe *		9,400		456
Genzyme *		9,900		701
Gilead Sciences *		35,357		1,259
Henry Schein *		1,000		59
Hill-Rom Holdings		35,000		1,256
Hospira *		73,500		4,190
Idexx Laboratories *		800		49
Illumina *		2,200		108
Intuitive Surgical *		11,500		3,263
Johnson & Johnson		325,578		20,173
Kinetic Concepts *		2,000		73
Laboratory Corp of America Holdings * (A)		63,278		4,963
Life Technologies *		1,300		61
Lincare Holdings		71,000		1,781
McKesson		24,412		1,508
Medco Health Solutions *		269,082		14,008
Medtronic		396,291		13,308
Merck		32,046		1,180
Mettler Toledo International *		14,700		1,829
Mylan Laboratories *		162,600		3,059
Novo Nordisk ADR		80,100		7,885
Omnicare		5,400		129
Patterson		63,200		1,811
PerkinElmer		17,200		398

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Perrigo (A)		119,300	$	7,661
Pfizer		272,505		4,679
Pharmaceutical Product Development		11,500		285
Quest Diagnostics		4,900		247
Regeneron Pharmaceuticals *		19,100		523
ResMed *		83,600		2,743
St. Jude Medical *		213,544		8,401
Stryker		48,300		2,417
SXC Health Solutions *		9,800		357
Teva Pharmaceutical Industries ADR		86,933		4,586
Thermo Fisher Scientific *		43,009		2,059
Thoratec *		15,900		588
United Therapeutics *		21,000		1,176
UnitedHealth Group		239,427		8,406
Universal Health Services, Cl B		2,700		105
Valeant Pharmaceuticals International *		60,907		1,526
Varian Medical Systems *		42,300		2,559
VCA Antech *		4,900		103
Warner Chilcott, Cl A		3,000		67
Waters *		21,400		1,515
				210,641
Industrials — 9.3%
3M		309,145		26,806
Ametek		500		24
Boeing		192,693		12,822
Bucyrus International, Cl A		8,700		603
Caterpillar (A)		84,000		6,609
Continental Airlines, Cl B *		5,700		141
Cooper Industries, Cl A		25,000		1,223
Copa Holdings, Cl A		700		38
Cummins		101,662		9,208
Danaher		139,968		5,684
Deere		18,000		1,256
Delta Air Lines *		132,700		1,545
Dover		30,700		1,603
Eaton		10,100		833
Emerson Electric		106,122		5,588
Expeditors International of Washington		160,100		7,402
Fastenal		28,500		1,516
FedEx		6,600		564
Gardner Denver		1,600		86
General Electric		210,800		3,426
Goodrich		102,300		7,543
Honeywell International		24,500		1,076
Illinois Tool Works		10,500		494
Kansas City Southern *		29,000		1,085
Kennametal		4,500		139
Landstar System		2,400		93
Lennox International		11,300		471
Lincoln Electric Holdings		1,200		69
Lockheed Martin		9,204		656
Manitowoc		39,200		475
Masco		10,100		111
Navistar International *		24,600		1,074
Owens Corning *		2,100		54
PACCAR		15,300		737
Parker Hannifin		5,500		385
Precision Castparts		60,908		7,757

Description	Shares		Market Value ($ Thousands)
Quanta Services * (A)		190,800	$	3,640
Raytheon		23,340		1,067
Regal-Beloit		7,300		429
Republic Services		3,100		95
Rockwell Automation		20,700		1,278
Rockwell Collins		134,902		7,858
Roper Industries		1,600		104
Ryder System		4,200		179
Southwest Airlines		59,300		775
Spirit Aerosystems Holdings, Cl A *		9,100		181
Teleflex		2,100		119
Thomas & Betts *		6,400		263
Timken		15,900		610
Toro		18,600		1,046
TransDigm Group		22,100		1,371
Tyco International		2,200		81
UAL *		73,400		1,734
Union Pacific		1,600		131
United Technologies		220,031		15,673
Verisk Analytics, Cl A *		5,400		151
Waste Connections *		20,000		793
WESCO International *		8,800		346
WW Grainger		17,500		2,084
				149,204
Information Technology — 30.2%
Accenture, Cl A		32,800		1,394
Adobe Systems * (A)		386,453		10,106
Advanced Micro Devices *		3,400		24
Agilent Technologies *		164,100		5,476
Akamai Technologies *		73,100		3,668
Alliance Data Systems *		5,200		339
Ansys *		3,400		144
Apple *		238,955		67,804
Applied Materials		20,800		243
Atheros Communications *		9,200		242
Atmel *		11,600		92
Autodesk *		162,700		5,202
Automatic Data Processing		2,600		109
Avago Technologies *		67,600		1,522
Broadcom, Cl A		37,180		1,316
Cadence Design Systems *		47,200		360
Check Point Software Technologies * (A)		117,728		4,348
Cisco Systems *		1,814,669		39,741
Citrix Systems *		235,585		16,076
Cognizant Technology Solutions, Cl A *		57,000		3,675
Corning		351,867		6,432
Cree *		73,600		3,996
Dell *		70,529		914
Dolby Laboratories, Cl A *		39,500		2,244
Electronic Arts *		19,500		320
EMC *		928,107		18,850
Equinix *		15,430		1,579
F5 Networks * (A)		89,900		9,333
Factset Research Systems		9,300		755
Flir Systems *		4,000		103
Gartner *		20,400		601
Google, Cl A *		41,116		21,618
Harris		19,300		855
Hewlett-Packard		212,600		8,944

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
IAC *		20,300	$	533
Intel		359,999		6,923
International Business Machines		120,174		16,120
Intuit *		254,600		11,154
JDS Uniphase *		126,800		1,571
Marvell Technology Group *		89,300		1,564
Mastercard, Cl A		52,510		11,762
Micros Systems *		4,200		178
Microsoft		1,566,969		38,375
National Instruments		39,800		1,300
NCR *		47,800		652
NetApp * (A)		199,405		9,928
Nuance Communications * (A)		334,300		5,228
Oracle		854,118		22,933
Paychex		195,849		5,384
Polycom *		152,800		4,168
Qualcomm		625,595		28,227
Rackspace Hosting * (A)		227,700		5,916
Red Hat *		134,400		5,510
Rovi *		3,200		161
Salesforce.com * (A)		76,042		8,502
SanDisk *		100,200		3,672
Seagate Technology *		30,600		361
Silicon Laboratories *		2,000		73
Skyworks Solutions *		12,500		258
Teradata *		184,400		7,110
Texas Instruments		515,310		13,985
Trimble Navigation *		15,400		539
VeriSign * (A)		266,400		8,456
Visa, Cl A		299,153		22,215
VMware, Cl A *		6,900		586
WebMD Health, Cl A *		34,621		1,727
Western Union		78,220		1,382
Xilinx		73,800		1,964
Zebra Technologies, Cl A *		1,400		47
				486,889
Materials — 2.8%
Albemarle		10,800		506
Allegheny Technologies (A)		166,362		7,727
Alpha Natural Resources *		5,000		206
Ashland		4,300		210
Carpenter Technology		27,600		930
Cliffs Natural Resources		40,100		2,563
Compass Minerals International		6,000		460
E.I. Du Pont de Nemours		28,300		1,263
Eagle Materials		3,800		90
Ecolab		28,690		1,456
FMC		1,600		109
International Flavors & Fragrances		22,300		1,082
Lubrizol		22,100		2,342
Monsanto (A)		180,270		8,640
Nalco Holding		198,700		5,009
Newmont Mining		2,400		151
Nucor		3,500		134
PPG Industries		6,800		495
Praxair		18,326		1,654
RPM International		1,600		32
Scotts Miracle-Gro, Cl A		4,800		248
Sherwin-Williams		2,800		211
Syngenta ADR		138,000		6,871
Titanium Metals *		32,800		655

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
United States Steel		4,700	$	206
Walter Energy		15,000		1,219
				44,469
Telecommunication Services — 1.9%
American Tower, Cl A *		262,523		13,457
Crown Castle International *		322,367		14,233
Frontier Communications		13,500		110
MetroPCS Communications *		24,900		260
NII Holdings *		29,500		1,212
SBA Communications, Cl A *		15,000		605
Windstream		22,400		276
				30,153
Utilities — 0.1%
Calpine *		29,900		372
ITC Holdings		11,600		722
				1,094
Total Common Stock (Cost $1,190,283) ($ Thousands)				1,485,548
CASH EQUIVALENT — 7.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		121,376,915		121,377
Total Cash Equivalent (Cost $121,377) ($ Thousands)				121,377
AFFILIATED PARTNERSHIP — 6.2%
SEI Liquidity Fund, L.P., 0.230% ** †† (B)		102,417,029		98,938
Total Affiliated Partnership (Cost $102,417) ($ Thousands)				98,938
U.S. TREASURY OBLIGATION (C) (D) — 0.5%
U.S. Treasury Bills
0.166%, 12/16/10	$	8,696		8,694
Total U.S. Treasury Obligation (Cost $8,693) ($ Thousands)				8,694
Total Investments — 106.5% (Cost $1,422,770) ($ Thousands)			$	1,714,557

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P Composite Index		356		Dec-2010	$	1,643

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,610,083 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Large Cap Growth Fund

September 30, 2010

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $99,295 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $98,938 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,485,548	$	—	$	—	$	1,485,548
Cash Equivalent		121,377		—		—		121,377
Affiliated Partnership		—		98,938		—		98,938
U.S. Treasury Obligation		—		8,694		—		8,694
Total Investments in Securities	$	1,606,925	$	107,632	$	—	$	1,714,557

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts *	$	1,643	$	—	$	—	$	1,643

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 97.5%
Consumer Discretionary — 11.3%
Abercrombie & Fitch, Cl A (A)		1,426	$	56
Advance Auto Parts (A)		1,200		70
Amazon.com * (A)		94,583		14,855
American Eagle Outfitters		3,150		47
American Greetings, Cl A (A)		16,300		303
Apollo Group, Cl A *		62,325		3,200
Autoliv (A)		26,150		1,708
Autonation * (A)		4,100		95
Autozone *		5,919		1,355
Barnes & Noble (A)		850		14
Bed Bath & Beyond *		4,400		191
Best Buy (A)		50,680		2,069
Big Lots *		1,557		52
Blyth		6,500		268
BorgWarner * (A)		53,344		2,807
Brinker International		3,400		64
Cablevision Systems, Cl A		6,700		176
Career Education * (A)		1,800		39
Carmax *		6,383		178
Carnival		33,300		1,272
Cavco Industries *		130		5
CBS, Cl B (A)		86,400		1,370
Chico’s FAS (A)		16,500		174
Chipotle Mexican Grill, Cl A *		800		138
Clear Channel Outdoor Holdings, Cl A *		5,800		66
Coach		135,336		5,814
Comcast, Cl A		441,800		7,988
Darden Restaurants		3,127		134
DeVry		7,121		350
Dick’s Sporting Goods *		3,700		104
DIRECTV, Cl A *		201,007		8,368
Discovery Communications, Cl C * (A)		5,040		193
DISH Network, Cl A		17,549		336
Dollar Tree *		1,243		61
DR Horton		6,500		72
Drew Industries *		1,300		27
Eastman Kodak * (A)		557,400		2,341
Expedia (A)		9,800		277
Family Dollar Stores		1,500		66
Federal Mogul, Cl A *		2,600		49
Ford Motor * (A)		309,000		3,782
Fortune Brands (A)		1,700		84
Fossil *		6,100		328
GameStop, Cl A * (A)		3,622		71
Gannett (A)		80,000		979
Gap (A)		165,900		3,092
Garmin (A)		37,300		1,132
Gentex		5,500		107
Genuine Parts		2,250		100
Goodyear Tire & Rubber * (A)		11,350		122
H&R Block		10,600		137
Harley-Davidson		3,000		86
Harman International Industries *		4,200		140
Hasbro		5,095		227
Helen of Troy *		3,500		88
Hillenbrand		6,100		131
Home Depot		38,900		1,232

Description	Shares		Market Value ($ Thousands)
International Game Technology		5,453	$	79
International Speedway, Cl A		1,000		25
Interpublic Group *		13,000		130
iRobot *		2,400		45
ITT Educational Services * (A)		12,800		900
J.C. Penney		4,030		109
Jarden		4,100		128
Johnson Controls		30,359		926
KB Home (A)		4,700		53
Kohl’s *		4,900		258
Lamar Advertising, Cl A * (A)		7,300		232
Las Vegas Sands * (A)		5,600		195
La-Z-Boy, Cl Z * (A)		5,900		50
Lear *		1,100		87
Leggett & Platt (A)		31,000		706
Lennar, Cl A		5,100		78
Liberty Global, Cl A * (A)		14,200		438
Liberty Media - Capital, Ser A *		10,500		547
Liberty Media - Interactive, Cl A *		13,150		180
Liberty Media - Starz, Ser A *		9,306		604
Limited Brands		5,100		136
LKQ *		3,200		67
Lowe’s		170,781		3,807
Macy’s		79,200		1,829
Madison Square Garden, Cl A *		1,675		35
Marriott International, Cl A		7,099		254
Mattel		2,300		54
McDonald’s		126,839		9,451
McGraw-Hill		5,300		175
Mohawk Industries * (A)		2,829		151
National Presto Industries		800		85
NetFlix * (A)		31,240		5,066
New York Times, Cl A * (A)		10,200		79
Newell Rubbermaid		2,700		48
News, Cl A		253,900		3,316
Nike, Cl B (A)		96,300		7,718
Nordstrom		74,000		2,753
NVR *		100		65
Omnicom Group		6,000		237
O’Reilly Automotive * (A)		6,600		351
Penn National Gaming *		2,300		68
Perry Ellis International *		1,000		22
PetSmart (A)		27,808		973
Polo Ralph Lauren		900		81
priceline.com * (A)		28,983		10,096
Pulte Homes * (A)		7,700		67
RadioShack		45,100		962
Ross Stores (A)		38,100		2,081
Royal Caribbean Cruises * (A)		3,900		123
Scholastic		1,700		47
Sears Holdings * (A)		5,300		382
Shoe Carnival *		1,200		24
Snap-On		778		36
Stanley Black & Decker		4,250		260
Staples		193,627		4,051
Starbucks (A)		194,009		4,963
Starwood Hotels & Resorts Worldwide (A)		3,600		189
Superior Industries International		1,900		33
Target		124,788		6,669
Tempur-Pedic International *		25,200		781
Thomson Reuters		2,900		109

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Thor Industries		8,000	$	267
Tiffany (A)		1,800		85
Tim Hortons		1,500		55
Time Warner		341,219		10,458
Time Warner Cable, Cl A		72,424		3,910
TJX		36,200		1,616
Toll Brothers *		2,300		44
TRW Automotive Holdings * (A)		34,600		1,438
Urban Outfitters *		2,500		79
VF (A)		36,806		2,982
Viacom, Cl B		10,400		376
Virgin Media (A)		12,500		288
WABCO Holdings *		3,400		143
Walt Disney		138,757		4,594
Warnaco Group *		2,100		107
Washington Post, Cl B		100		40
Whirlpool (A)		26,000		2,105
Wyndham Worldwide		13,000		357
Wynn Resorts		500		43
Yum! Brands		63,400		2,920
				173,961
Consumer Staples — 9.1%
Altria Group		96,510		2,318
Archer-Daniels-Midland		107,378		3,427
Avon Products		7,636		245
BJ’s Wholesale Club *		17,457		724
Brown-Forman, Cl B		20,900		1,288
Bunge (A)		2,500		148
Campbell Soup (A)		47,600		1,702
Central European Distribution *		1,800		40
Chiquita Brands International * (A)		26,000		344
Church & Dwight		800		52
Clorox		2,969		198
Coca-Cola		228,679		13,382
Coca-Cola Enterprises		6,100		189
Colgate-Palmolive		63,829		4,906
ConAgra Foods		51,550		1,131
Constellation Brands, Cl A *		3,000		53
Corn Products International		30,800		1,155
Costco Wholesale		10,500		677
CVS Caremark		205,870		6,479
Dean Foods *		19,800		202
Del Monte Foods		114,700		1,504
Diageo ADR		58,500		4,037
Dr Pepper Snapple Group (A)		30,300		1,076
Energizer Holdings *		1,628		110
Estee Lauder, Cl A		3,500		221
General Mills		16,768		613
Herbalife (A)		38,800		2,342
Hershey		1,900		90
HJ Heinz (A)		3,797		180
Hormel Foods		2,000		89
JM Smucker		3,700		224
Kellogg		113,058		5,711
Kimberly-Clark		58,942		3,834
Kraft Foods, Cl A		92,444		2,853
Kroger		187,652		4,065
Lorillard		5,450		438
McCormick (A)		2,100		88
Mead Johnson Nutrition, Cl A		67,031		3,815
Molson Coors Brewing, Cl B		12,100		572

Description	Shares		Market Value ($ Thousands)
NBTY *		1,100	$	60
PepsiCo		154,373		10,257
Philip Morris International		85,874		4,811
Prestige Brands Holdings *		18,600		184
Procter & Gamble		495,500		29,715
Reynolds American (A)		37,900		2,251
Safeway (A)		152,417		3,225
Sara Lee		24,000		322
SUPERVALU (A)		42,400		489
SYSCO (A)		9,150		261
Tyson Foods, Cl A		101,000		1,618
Walgreen		251,422		8,423
Wal-Mart Stores		144,748		7,747
Whole Foods Market *		3,700		137
				140,022
Energy — 8.8%
Anadarko Petroleum		11,400		650
Apache (A)		55,735		5,449
Arch Coal		4,000		107
Baker Hughes (A)		6,603		281
BP ADR		4,700		194
Cabot Oil & Gas		1,500		45
Cameron International *		71,866		3,087
Canadian Natural Resources		97,437		3,371
Chesapeake Energy		52,500		1,189
Chevron		304,809		24,705
Cimarex Energy		17,643		1,168
Complete Production Services *		6,200		127
Concho Resources * (A)		900		60
ConocoPhillips		240,107		13,789
Consol Energy		2,800		104
Continental Resources *		1,000		46
Denbury Resources * (A)		76,600		1,217
Devon Energy		35,790		2,317
Diamond Offshore Drilling (A)		15,600		1,057
Dresser-Rand Group *		11,000		406
El Paso (A)		10,156		126
Ensco International ADR		3,000		134
EOG Resources (A)		58,800		5,467
Equities		3,300		119
EXCO Resources		3,100		46
Exterran Holdings * (A)		2,700		61
Exxon Mobil		248,749		15,370
FMC Technologies *		1,400		96
Frontier Oil		11,400		153
Frontline		2,300		65
Halliburton		134,745		4,456
Helmerich & Payne (A)		9,295		376
Hess		24,750		1,463
Holly (A)		7,600		219
Marathon Oil		194,300		6,431
Mariner Energy * (A)		2,731		66
Massey Energy		1,900		59
McDermott International *		7,600		112
Murphy Oil		73,616		4,558
Nabors Industries *		5,600		101
National Oilwell Varco		65,541		2,915
Newfield Exploration *		2,500		144
Noble		31,500		1,064
Noble Energy		2,600		195
Occidental Petroleum		58,945		4,615
Oceaneering International *		1,200		65

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Oil States International *		33,800	$	1,573
Patriot Coal * (A)		880		10
Patterson-UTI Energy		49,700		849
Peabody Energy		8,900		436
PetroHawk Energy *		8,800		142
Pioneer Natural Resources		4,944		322
Plains Exploration & Production *		4,095		109
Pride International *		2,700		79
QEP Resources		3,500		106
Range Resources (A)		53,222		2,029
Rowan *		2,522		77
RPC		8,200		174
SandRidge Energy * (A)		10,000		57
Schlumberger		70,458		4,341
SM Energy		1,000		37
Southwestern Energy *		48,643		1,627
Spectra Energy		19,743		445
Stone Energy *		24,000		354
Sunoco (A)		18,700		683
Swift Energy * (A)		9,800		275
Teekay Shipping		3,100		83
Tidewater (A)		14,350		643
Transocean *		114,250		7,345
Ultra Petroleum * (A)		5,100		214
Unit *		28,200		1,052
Valero Energy		158,694		2,779
Venoco * (A)		4,800		94
Weatherford International *		16,800		287
Whiting Petroleum *		1,700		162
Williams		69,600		1,330
				135,559
Financials — 16.3%
ACE		30,700		1,788
Affiliated Managers Group *		1,000		78
Aflac		112,860		5,836
Agree Realty †		7,700		194
Alexandria Real Estate Equities † (A)		1,000		70
Allstate		89,350		2,819
American Equity Investment Life Holding (A)		26,600		272
American Express		244,727		10,286
American Financial Group		61,500		1,881
American International Group * (A)		8,700		340
Ameriprise Financial		89,490		4,236
Annaly Capital Management † (A)		62,513		1,100
AON (A)		4,050		158
Apartment Investment & Management, Cl A † (A)		67,115		1,435
Arthur J. Gallagher		2,600		69
Associated Banc-Corp (A)		14,100		186
Assurant		60,200		2,450
Assured Guaranty		6,600		113
AvalonBay Communities †		1,900		197
Axis Capital Holdings		31,600		1,041
Bancorp Rhode Island		1,500		42
Bank of America		1,549,724		20,317
Bank of Hawaii (A)		23,150		1,040
Bank of New York Mellon		207,204		5,414
BB&T (A)		18,300		441

Description	Shares		Market Value ($ Thousands)
Berkshire Hathaway, Cl B *		155,800	$	12,882
BlackRock		700		119
Boston Properties † (A)		1,600		133
Brandywine Realty Trust †		38,000		466
BRE Properties, Cl A †		2,200		91
Brookfield Asset Management, Cl A		40,500		1,149
Brown & Brown (A)		2,200		44
Camden Property Trust †		2,200		106
Capital One Financial (A)		170,100		6,727
CapitalSource		3,400		18
CB Richard Ellis Group, Cl A *		2,800		51
Charles Schwab		18,220		253
Chimera Investment †		68,200		269
Chubb (A)		107,000		6,098
Cincinnati Financial (A)		3,700		107
CIT Group *		5,100		208
Citigroup *		3,347,900		13,057
CME Group		19,000		4,949
CNA Surety *		2,500		45
Comerica (A)		14,200		528
Commerce Bancshares		2,835		107
Compass Diversified Holdings		4,900		79
Credicorp (A)		12,400		1,412
Cullen/Frost Bankers		1,900		102
Digital Realty Trust † (A)		1,300		80
Discover Financial Services		7,500		125
Duke Realty †		21,100		245
E*Trade Financial *		34,900		508
Endurance Specialty Holdings		35,200		1,401
Equity Residential † (A)		4,687		223
Erie Indemnity, Cl A		1,400		79
Everest Re Group		32,800		2,836
Federal Realty Investment Trust † (A)		800		65
Fidelity National Financial, Cl A		5,399		85
Fifth Third Bancorp		101,900		1,226
First American Financial		2,100		31
First Citizens BancShares, Cl A		600		111
First Horizon National * (A)		15,677		179
Forest City Enterprises, Cl A * (A)		61,000		783
Franklin Resources		24,550		2,624
Fulton Financial		52,400		475
General Growth Properties †		3,000		47
General Motors Financial *		10,900		267
GLG Partners * (A)		20,900		94
Goldman Sachs Group		101,399		14,660
Hanover Insurance Group		4,297		202
Hartford Financial Services Group		36,700		842
HCC Insurance Holdings		1,500		39
HCP † (A)		8,700		313
Health Care †		1,371		65
Highwoods Properties † (A)		750		24
Hospitality Properties Trust †		73,600		1,644
Host Hotels & Resorts † (A)		17,409		252
Hudson City Bancorp		145,200		1,780
Huntington Bancshares (A)		214,400		1,216
IntercontinentalExchange *		43,491		4,554
Invesco (A)		6,000		127
Invesco Mortgage Capital †		15,000		323
Investment Technology Group *		2,400		34

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Jefferies Group (A)		7,900	$	179
Jones Lang LaSalle (A)		17,000		1,467
JPMorgan Chase		688,107		26,196
Keycorp (A)		16,200		129
Kimco Realty †		3,600		57
Legg Mason (A)		2,100		64
Liberty Property Trust † (A)		1,900		61
Lincoln National		50,500		1,208
Loews		33,900		1,285
M&T Bank (A)		2,500		204
Macerich † (A)		5,935		255
Mack-Cali Realty †		2,700		88
Maiden Holdings		14,200		108
Manulife Financial		1,565		20
Marsh & McLennan		5,906		142
Marshall & Ilsley		11,700		82
MBIA * (A)		7,600		76
Mercury General		1,700		69
MetLife		85,300		3,280
Moody’s (A)		3,838		96
Morgan Stanley		147,100		3,630
MSCI, Cl A *		1,300		43
Nationwide Health Properties †		1,500		58
Nelnet, Cl A		3,200		73
New York Community Bancorp (A)		3,600		59
Northern Trust		6,450		311
NYSE Euronext		148,900		4,254
Old Republic International (A)		5,100		71
OneBeacon Insurance Group, Cl A		4,400		63
Oppenheimer Holdings, Cl A		2,700		76
PartnerRe		1,800		144
People’s United Financial		10,625		139
Plum Creek Timber †		2,090		74
PNC Financial Services Group		92,300		4,791
Popular *		14,800		43
Principal Financial Group		8,000		207
Progressive		10,982		229
Prologis † (A)		9,200		108
Protective Life		8,600		187
Prudential Financial		65,100		3,527
Public Storage †		15,450		1,499
Ramco-Gershenson Properties †		10,600		114
Raymond James Financial (A)		2,025		51
Rayonier †		4,600		231
Regions Financial		97,300		707
Reinsurance Group of America, Cl A		21,100		1,019
RenaissanceRe Holdings (A)		20,900		1,253
Resource Capital † (A)		16,000		102
Simon Property Group †		7,848		728
SL Green Realty †		700		44
SLM *		7,400		85
St. Joe * (A)		1,700		42
StanCorp Financial Group		10,400		395
State Street		42,000		1,582
Sunstone Hotel Investors * †		42,700		387
SunTrust Banks (A)		27,800		718
SVB Financial Group * (A)		1,550		66
T. Rowe Price Group (A)		33,600		1,682
Taubman Centers † (A)		37,300		1,664

Description	Shares		Market Value ($ Thousands)
TD Ameritrade Holding * (A)		7,650	$	124
Torchmark		1,000		53
Transatlantic Holdings		1,400		71
Travelers		115,365		6,011
Unitrin		4,900		120
Unum Group		85,650		1,897
US Bancorp		184,008		3,978
Validus Holdings		30,600		807
Valley National Bancorp (A)		2,276		29
Ventas † (A)		3,400		175
Vornado Realty Trust †		18,643		1,595
Waddell & Reed Financial, Cl A		2,800		77
Walter Investment Management †		876		15
Washington Federal		9,300		142
Weingarten Realty Investors † (A)		4,600		100
Wells Fargo		841,467		21,146
WesBanco		6,600		108
Weyerhaeuser		9,119		144
White Mountains Insurance Group		100		31
World Acceptance * (A)		5,200		230
XL Group, Cl A		12,400		269
				251,006
Health Care — 13.3%
Abbott Laboratories		171,458		8,957
Abraxis BioScience *		6,000		464
Aetna		182,000		5,753
Alcon		200		33
Alere *		1,700		53
Alexion Pharmaceuticals *		1,100		71
Allergan		145,100		9,653
AmerisourceBergen		81,576		2,501
Amgen *		232,448		12,810
Amylin Pharmaceuticals * (A)		3,700		77
Baxter International		13,350		637
Beckman Coulter		2,600		127
Becton Dickinson		7,100		526
Biogen Idec *		54,108		3,037
Boston Scientific *		36,600		224
Bristol-Myers Squibb		183,245		4,968
Bruker BioSciences * (A)		22,500		316
C.R. Bard		3,700		301
Cardinal Health		42,500		1,404
CareFusion *		4,700		117
Celgene * (A)		85,985		4,954
Cerner * (A)		1,100		92
Charles River Laboratories International *		1,600		53
Cigna		7,040		252
Community Health Systems *		1,600		50
Cooper		2,100		97
Covance *		2,200		103
Coventry Health Care *		56,900		1,225
Covidien		79,231		3,184
Cyberonics *		2,300		61
DaVita *		1,425		98
Dendreon * (A)		1,600		66
Dentsply International		2,300		74
Edwards Lifesciences *		1,400		94
Eli Lilly (A)		146,971		5,369

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Endo Pharmaceuticals Holdings *		45,900	$	1,526
Express Scripts *		61,845		3,012
Forest Laboratories *		114,300		3,535
Furiex Pharmaceuticals *		433		5
Genzyme *		56,950		4,031
Gilead Sciences *		111,400		3,967
Health Management Associates, Cl A * (A)		9,200		71
Health Net *		43,800		1,191
Henry Schein *		1,000		59
Hologic *		7,600		122
Hospira *		3,100		177
Human Genome Sciences *		3,600		107
Humana *		30,379		1,526
Idexx Laboratories * (A)		3,500		216
Illumina * (A)		1,600		79
Immucor *		4,500		89
Impax Laboratories *		2,600		51
Intuitive Surgical * (A)		4,950		1,405
Invacare (A)		9,200		244
Johnson & Johnson		354,742		21,980
Kinetic Concepts *		23,400		856
King Pharmaceuticals *		62,950		627
Laboratory Corp of America Holdings * (A)		39,034		3,061
Life Technologies *		4,591		214
Lincare Holdings (A)		23,850		598
McKesson		2,326		144
Medco Health Solutions *		144,986		7,548
Medicines *		5,800		82
Medidata Solutions *		2,000		39
Mednax *		1,500		80
Medtronic		210,676		7,074
Merck		334,372		12,308
Mettler Toledo International *		2,850		354
Mylan Laboratories * (A)		7,475		141
Novo Nordisk ADR (A)		44,800		4,410
Par Pharmaceutical *		7,400		215
Patterson		2,100		60
PerkinElmer		5,950		138
Perrigo (A)		36,000		2,312
Pfizer		1,095,576		18,811
Pharmaceutical Product Development		5,200		129
Quest Diagnostics		3,004		152
Questcor Pharmaceuticals *		2,100		21
ResMed *		1,800		59
Sirona Dental Systems *		7,300		263
St. Jude Medical * (A)		111,724		4,395
Stryker		12,000		601
SXC Health Solutions *		6,000		219
Tenet Healthcare *		9,200		43
Teva Pharmaceutical Industries ADR		41,265		2,177
Thermo Fisher Scientific *		51,600		2,470
UnitedHealth Group		462,399		16,235
Valeant Pharmaceuticals International * (A)		1,781		45
Varian Medical Systems * (A)		2,900		175
VCA Antech *		2,200		46
Vertex Pharmaceuticals * (A)		2,700		93

Description	Shares		Market Value ($ Thousands)
Warner Chilcott, Cl A		1,700	$	38
Waters *		8,900		630
Watson Pharmaceuticals *		2,900		123
WellPoint *		81,944		4,641
Zimmer Holdings *		27,626		1,446
				204,267
Industrials — 9.5%
3M		148,869		12,908
Aecom Technology *		1,500		36
AGCO * (A)		1,600		62
Alliant Techsystems * (A)		2,500		188
Amerco *		400		32
Ametek		9,500		454
AMR *		25,300		159
Avery Dennison		1,300		48
AZZ		1,000		43
Babcock & Wilcox *		3,800		81
BE Aerospace *		1,900		58
Boeing (A)		116,139		7,728
Bucyrus International, Cl A		1,500		104
C.H. Robinson Worldwide (A)		2,502		175
Carlisle		1,500		45
Caterpillar		59,522		4,683
Chicago Bridge & Iron *		4,600		113
Cintas		1,700		47
CNH Global		1,600		59
Continental Airlines, Cl B * (A)		7,650		190
Con-way (A)		3,100		96
Cooper Industries, Cl A		8,100		396
Copart *		4,900		162
Corrections Corp of America *		1,900		47
Covanta Holding		2,900		46
Crane		4,850		184
CSX		51,862		2,869
Cummins		53,475		4,844
Danaher		86,339		3,506
Deere		23,600		1,647
Delta Air Lines * (A)		8,100		94
Donaldson		1,900		90
Dover		17,200		898
Dun & Bradstreet		15,100		1,119
DXP Enterprises *		1,500		29
Eaton		11,179		922
Emerson Electric		83,601		4,402
EnerSys *		4,000		100
Equifax		2,500		78
Expeditors International of Washington (A)		93,500		4,322
Fastenal (A)		2,800		149
FedEx		20,533		1,756
Flowserve		2,004		219
Fluor (A)		4,700		233
Foster Wheeler *		2,100		51
FTI Consulting *		1,300		45
Gardner Denver		24,800		1,331
GATX (A)		1,600		47
General Cable *		3,000		81
General Dynamics		65,106		4,089
General Electric		1,227,955		19,954
Goodrich		37,050		2,732
Graco		1,400		44
Harsco		2,300		57

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Hertz Global Holdings * (A)		4,200	$	44
Honeywell International		25,963		1,141
IDEX		4,400		156
Illinois Tool Works		31,929		1,501
Ingersoll-Rand		3,300		118
Iron Mountain		3,625		81
ITT		18,100		848
Jacobs Engineering Group *		3,100		120
John Bean Technologies		216		4
Joy Global		6,100		429
Kansas City Southern *		1,100		41
KBR		53,700		1,323
Kennametal		18,000		557
L-3 Communications Holdings		37,200		2,688
Lincoln Electric Holdings		400		23
Lockheed Martin		34,270		2,443
Manitowoc		4,100		50
Manpower		1,700		89
Masco		7,600		84
MSC Industrial Direct, Cl A		2,000		108
NACCO Industries, Cl A		1,200		105
Navistar International *		900		39
Norfolk Southern		44,590		2,654
Northrop Grumman		97,734		5,926
Oshkosh Truck *		11,500		316
PACCAR (A)		6,134		295
Pall		2,322		97
Parker Hannifin		33,675		2,359
Pentair		2,400		81
Polypore International *		1,400		42
Precision Castparts (A)		29,857		3,802
Quanta Services * (A)		88,900		1,696
Raytheon		79,500		3,634
Regal-Beloit		3,100		182
Republic Services		7,345		224
Robert Half International (A)		2,900		75
Rockwell Automation		6,000		370
Rockwell Collins		78,182		4,554
Roper Industries		1,900		124
RR Donnelley & Sons		126,500		2,145
Shaw Group *		1,550		52
Skywest		821		11
Southwest Airlines		20,700		271
Spirit Aerosystems Holdings, Cl A *		2,400		48
SPX		749		47
Stericycle *		600		42
Textron		5,200		107
Thomas & Betts *		5,400		222
Timken		26,900		1,032
Trinity Industries (A)		5,700		127
Tyco International		21,311		783
UAL * (A)		51,700		1,222
Union Pacific		42,900		3,509
United Parcel Service, Cl B		22,300		1,487
United Technologies		146,007		10,400
URS *		3,500		133
Waste Management (A)		11,218		401
WW Grainger (A)		13,209		1,573
				145,887
Information Technology — 19.5%
Accenture, Cl A		8,900		378

Description	Shares		Market Value ($ Thousands)
Acme Packet * (A)		3,300	$	125
Activision Blizzard		134,300		1,453
Adobe Systems * (A)		190,667		4,986
Advanced Micro Devices * (A)		7,200		51
Advent Software * (A)		1,378		72
Agilent Technologies *		18,450		616
Akamai Technologies *		3,000		151
Alliance Data Systems * (A)		1,100		72
Altera (A)		9,400		284
Amdocs * (A)		36,900		1,058
Amphenol, Cl A		2,800		137
Analog Devices		4,050		127
AOL *		24,060		595
Aon Hewitt, Cl A *		1,500		76
Apple *		126,037		35,763
Applied Materials		59,300		693
Arris Group *		10,500		103
Arrow Electronics *		5,000		134
Autodesk *		85,709		2,740
Automatic Data Processing		8,218		345
Avnet *		61,100		1,650
AVX		8,200		113
BMC Software *		6,848		277
Broadcom, Cl A		34,700		1,228
Broadridge Financial Solutions		3,000		69
Brocade Communications Systems *		8,700		51
CA		17,197		363
Cadence Design Systems *		11,100		85
Check Point Software Technologies *		68,994		2,548
Ciena * (A)		6,400		100
Cisco Systems *		964,199		21,116
Citrix Systems * (A)		121,305		8,278
Cognizant Technology Solutions, Cl A *		4,456		287
Computer Sciences		37,900		1,743
Convergys *		7,400		77
CoreLogic		2,100		40
Corning		349,295		6,385
Cree * (A)		1,200		65
Cypress Semiconductor * (A)		6,250		79
Dell *		29,400		381
Diebold		1,700		53
Dolby Laboratories, Cl A * (A)		4,335		246
DST Systems		850		38
eBay *		167,434		4,085
EchoStar, Cl A *		2,800		53
Electronic Arts *		5,200		85
EMC *		647,303		13,147
Equinix * (A)		800		82
F5 Networks *		31,148		3,233
Factset Research Systems (A)		900		73
Fidelity National Information Services		6,909		188
First Solar * (A)		1,200		177
Fiserv *		2,242		121
Global Payments		2,000		86
Google, Cl A *		18,638		9,800
Harris		50,800		2,250
Hewlett-Packard		191,073		8,038
IAC *		46,495		1,221

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Ingram Micro, Cl A *		104,400	$	1,760
Intel (A)		577,736		11,110
Interactive Intelligence *		3,600		63
International Business Machines		88,008		11,805
International Rectifier *		3,500		74
Intersil, Cl A (A)		4,000		47
Intuit * (A)		156,431		6,853
Isilon Systems *		3,700		82
Itron *		5,100		312
Jabil Circuit		11,700		169
JDS Uniphase *		3,700		46
Juniper Networks * (A)		15,546		472
Kla-Tencor		3,800		134
Lam Research *		6,700		280
Lender Processing Services		3,732		124
Lexmark International, Cl A *		27,400		1,223
Linear Technology (A)		8,300		255
LSI Logic *		45,500		208
Marvell Technology Group *		67,200		1,177
Mastercard, Cl A		23,400		5,242
Maxim Integrated Products (A)		2,500		46
McAfee *		2,900		137
MEMC Electronic Materials *		4,300		51
Microchip Technology (A)		2,350		74
Micron Technology * (A)		128,900		929
Microsoft		909,624		22,277
Monster Worldwide * (A)		3,200		41
Motorola * (A)		49,700		424
Multi-Fineline Electronix *		1,400		31
National Semiconductor		9,100		116
NetApp * (A)		86,510		4,307
NeuStar, Cl A *		30,400		756
Novell *		13,200		79
Novellus Systems * (A)		5,200		138
Nuance Communications * (A)		150,000		2,346
Nvidia * (A)		12,250		143
Oracle		381,802		10,251
Paychex (A)		119,024		3,272
Plantronics		2,700		91
Polycom *		60,764		1,658
QLogic *		4,200		74
Qualcomm		371,963		16,783
Rackspace Hosting * (A)		101,600		2,640
Rambus *		5,000		104
Red Hat *		62,700		2,571
Research In Motion *		23,600		1,149
Rovi * (A)		3,923		198
Salesforce.com * (A)		30,182		3,374
SanDisk *		8,400		308
Seagate Technology *		88,600		1,044
Symantec *		73,114		1,109
Synopsys *		10,800		268
Tech Data *		22,300		899
Tellabs		11,600		86
Teradata *		104,900		4,045
Teradyne * (A)		9,800		109
Texas Instruments (A)		566,700		15,380
TIBCO Software *		12,000		213
Total System Services (A)		3,100		47
Trimble Navigation * (A)		2,600		91
Tyco Electronics		12,900		377
Verigy *		863		7

Description	Shares		Market Value ($ Thousands)
VeriSign * (A)		146,754	$	4,658
Visa, Cl A		145,514		10,806
Vishay Intertechnology *		84,300		816
Vishay Precision Group *		5,807		91
VistaPrint *		1,200		46
VMware, Cl A * (A)		2,000		170
WebMD Health, Cl A * (A)		2,596		129
Western Digital *		36,650		1,041
Western Union		40,588		717
Xerox		236,028		2,443
Xilinx (A)		4,600		122
Yahoo! *		23,550		334
Zebra Technologies, Cl A *		7,200		242
				298,964
Materials — 2.7%
Air Products & Chemicals		3,550		294
Airgas (A)		1,700		115
AK Steel Holding		6,500		90
Albemarle		1,100		51
Alcoa		48,500		587
Allegheny Technologies (A)		80,366		3,733
Alpha Natural Resources *		2,600		107
Aptargroup		1,100		50
Ashland		46,100		2,248
Ball		18,200		1,071
Bemis		2,400		76
Boise *		27,400		178
Cabot		8,000		261
Celanese, Ser A		16,800		539
CF Industries Holdings		900		86
Cliffs Natural Resources (A)		1,800		115
Commercial Metals (A)		17,700		256
Crown Holdings *		2,200		63
Cytec Industries		24,100		1,359
Dow Chemical		52,975		1,455
E.I. Du Pont de Nemours		17,800		794
Eagle Materials		753		18
Eastman Chemical		47,500		3,515
Ecolab		12,100		614
FMC		900		62
Freeport-McMoRan Copper & Gold, Cl B		7,850		670
Greif, Cl A		1,500		88
Huntsman		4,200		49
International Flavors & Fragrances		1,400		68
International Paper		56,000		1,218
Kaiser Aluminum (A)		1,000		43
Koppers Holdings		4,900		132
Lubrizol		29,900		3,168
Martin Marietta Materials (A)		550		42
MeadWestvaco		7,400		181
Monsanto		83,180		3,987
Mosaic		3,000		176
Nalco Holding		109,700		2,766
NewMarket		1,600		182
Newmont Mining		15,000		942
Nucor (A)		19,800		756
OM Group *		2,300		69
Owens-Illinois * (A)		23,150		650
Packaging Corp of America		1,900		44
Pactiv *		1,632		54

7 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
PPG Industries		3,000	$	218
Praxair (A)		5,100		460
Reliance Steel & Aluminum		10,200		424
Rock-Tenn, Cl A		20,100		1,001
Royal Gold (A)		1,938		97
RPM International		1,500		30
Sealed Air		6,700		151
Sherwin-Williams (A)		1,700		128
Sigma-Aldrich (A)		2,200		133
Sonoco Products		26,600		889
Southern Copper (A)		39,711		1,395
Steel Dynamics		6,500		92
Syngenta ADR		71,300		3,550
Titanium Metals *		2,700		54
United States Steel (A)		2,368		104
Walter Energy		2,400		195
Zep		2,700		47
				41,990
Telecommunication Services — 3.5%
American Tower, Cl A *		119,796		6,141
AT&T		809,646		23,156
Atlantic Telegraph-Network		3,100		153
CenturyTel (A)		38,268		1,510
Crown Castle International *		145,000		6,402
Frontier Communications (A)		50,369		412
MetroPCS Communications * (A)		51,700		541
NII Holdings *		2,900		119
Qwest Communications International (A)		19,518		122
SBA Communications, Cl A * (A)		2,100		85
Sprint Nextel *		398,800		1,846
Telephone & Data Systems		1,900		62
Telephone & Data Systems, Cl L		1,300		37
US Cellular *		33,676		1,548
USA Mobility		4,200		67
Verizon Communications		350,459		11,421
Windstream		8,323		102
				53,724
Utilities — 3.5%
AES *		760,450		8,631
AGL Resources		11,200		430
Allegheny Energy		4,200		103
Alliant Energy		35,200		1,280
Ameren		52,000		1,477
American Electric Power		114,300		4,141
American Water Works		16,200		377
Aqua America (A)		2,033		42
Atmos Energy		1,700		50
Calpine *		6,300		78
Centerpoint Energy		9,500		149
CMS Energy (A)		63,700		1,148
Consolidated Edison (A)		6,500		313
Constellation Energy Group		46,710		1,506
Dominion Resources (A)		14,783		645
DPL		11,900		311
DTE Energy		32,800		1,506
Duke Energy		21,544		382
Dynegy, Cl A *		1,360		7
Edison International		104,500		3,594
Energen		44,000		2,012
Entergy		39,348		3,011

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Exelon		96,376	$	4,104
FirstEnergy (A)		36,700		1,414
Great Plains Energy		3,500		66
Hawaiian Electric Industries (A)		3,200		72
MDU Resources Group		46,800		934
Mirant *		134,200		1,337
National Fuel Gas		1,300		67
NextEra Energy		11,538		628
NiSource		12,500		217
NRG Energy * (A)		50,400		1,049
NSTAR		7,000		275
NV Energy		36,000		473
OGE Energy		48,974		1,953
Oneok (A)		6,500		293
PG&E		6,150		279
Pinnacle West Capital		25,300		1,044
Portland General Electric		1,400		28
PPL		5,600		153
Progress Energy		5,500		244
Public Service Enterprise Group		145,100		4,800
Questar		3,500		61
SCANA		5,700		230
Sempra Energy		3,747		202
Southern		19,064		710
Southern Union		38,900		936
TECO Energy		14,700		255
Wisconsin Energy		1,000		58
Xcel Energy		8,453		194
				53,269
Total Common Stock (Cost $1,258,294) ($ Thousands)				1,498,649
AFFILIATED PARTNERSHIP — 8.3%
SEI Liquidity Fund, L.P.,
0.230% ** †† (B)		131,826,378		127,731
Total Affiliated Partnership (Cost $131,826) ($ Thousands)				127,731
CASH EQUIVALENT — 2.3%
SEI Daily Income Trust, Prime Obligation Fund, Cl A,
0.150% ** ††		35,702,053		35,702
Total Cash Equivalent (Cost $35,702) ($ Thousands)				35,702
U.S. TREASURY OBLIGATION (C) (D) — 0.4%
U.S. Treasury Bills
0.200%, 12/16/10	$	6,212		6,210
Total U.S. Treasury Obligation (Cost $6,209) ($ Thousands)				6,210
Total Investments — 108.5% (Cost $1,432,031) ($ Thousands)			$	1,668,292

8 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Large Cap Fund

September 30, 2010

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		3		Dec-2010	$	6
S&P Composite Index		101		Dec-2010		556
S&P Mid 400 Index E-MINI		58		Dec-2010		160
					$	722

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,537,777 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $127,992 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $127,731 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

Ser — Series

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,498,649	$	—	$	—	$	1,498,649
Affiliated Partnership		—		127,731		—		127,731
Cash Equivalent		35,702		—		—		35,702
U.S. Treasury Obligation		—		6,210		—		6,210
Total Investments in Securities	$	1,534,351	$	133,941	$	—	$	1,668,292

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	722	$	—	$	—	$	722

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

9 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

S&P 500 Index Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 97.9%
Consumer Discretionary — 10.2%
Abercrombie & Fitch, Cl A (A)		11,300	$	444
Amazon.com *		46,300		7,272
Apollo Group, Cl A *		16,103		827
Autonation * (A)		10,126		235
Autozone * (A)		3,894		891
Bed Bath & Beyond * (A)		35,133		1,525
Best Buy (A)		44,641		1,823
Big Lots *		9,913		330
Carmax *		28,500		794
Carnival		56,984		2,177
CBS, Cl B (A)		88,101		1,397
Coach		40,610		1,744
Comcast, Cl A		367,222		6,639
Darden Restaurants		18,813		805
DeVry		8,200		404
DIRECTV, Cl A *		113,300		4,717
Discovery Communications, Cl A * (A)		37,300		1,624
DR Horton		38,649		430
Eastman Kodak * (A)		31,610		133
Expedia (A)		26,700		753
Family Dollar Stores		17,322		765
Ford Motor * (A)		447,580		5,478
Fortune Brands (A)		19,119		941
GameStop, Cl A * (A)		18,600		367
Gannett (A)		33,547		410
Gap (A)		59,131		1,102
Genuine Parts		20,136		898
Goodyear Tire & Rubber * (A)		30,693		330
H&R Block		42,804		554
Harley-Davidson (A)		29,908		851
Harman International Industries *		8,500		284
Hasbro		17,191		765
Home Depot (A)		218,696		6,928
International Game Technology		41,056		593
Interpublic Group *		63,501		637
J.C. Penney (A)		30,680		834
Johnson Controls		88,757		2,707
Kohl’s *		40,047		2,110
Leggett & Platt		19,454		443
Lennar, Cl A (A)		23,507		362
Limited Brands (A)		34,427		922
Lowe’s		186,436		4,156
Macy’s		54,564		1,260
Marriott International, Cl A (A)		37,452		1,342
Mattel		48,418		1,136
McDonald’s		139,170		10,370
McGraw-Hill		40,521		1,340
Meredith (A)		5,363		179
New York Times, Cl A *		14,392		111
Newell Rubbermaid (A)		36,747		654
News, Cl A		296,833		3,877
Nike, Cl B (A)		51,194		4,103
Nordstrom		21,902		815
Office Depot *		38,120		175
Omnicom Group		40,304		1,591
O’Reilly Automotive * (A)		17,300		920
Polo Ralph Lauren (A)		8,800		791
priceline.com *		6,280		2,187

Description	Shares		Market Value ($ Thousands)
Pulte Homes * (A)		41,982	$	368
RadioShack		15,025		321
Ross Stores (A)		15,834		865
Scripps Networks Interactive, Cl A		11,600		552
Sears Holdings * (A)		6,065		437
Snap-On		6,953		323
Stanley Black & Decker		21,435		1,313
Staples		94,114		1,969
Starbucks (A)		96,358		2,465
Starwood Hotels & Resorts Worldwide (A)		25,335		1,331
Target		94,319		5,040
Tiffany (A)		16,973		798
Time Warner		149,912		4,595
Time Warner Cable, Cl A		46,783		2,526
TJX		52,867		2,359
Urban Outfitters *		17,000		535
VF		11,214		908
Viacom, Cl B		80,101		2,899
Walt Disney		250,027		8,278
Washington Post, Cl B (A)		755		302
Whirlpool (A)		9,905		802
Wyndham Worldwide		22,902		629
Wynn Resorts (A)		9,200		798
Yum! Brands (A)		61,670		2,841
				141,506
Consumer Staples — 11.1%
Altria Group		271,856		6,530
Archer-Daniels-Midland		84,266		2,690
Avon Products (A)		55,151		1,771
Brown-Forman, Cl B		14,495		894
Campbell Soup (A)		24,175		864
Clorox (A)		18,442		1,231
Coca-Cola		301,553		17,647
Coca-Cola Enterprises		43,617		1,352
Colgate-Palmolive		64,493		4,957
ConAgra Foods		57,552		1,263
Constellation Brands, Cl A *		25,800		456
Costco Wholesale (A)		58,118		3,748
CVS Caremark		178,835		5,628
Dean Foods *		24,800		253
Dr Pepper Snapple Group (A)		31,500		1,119
Estee Lauder, Cl A (A)		15,900		1,005
General Mills		83,982		3,069
Hershey (A)		22,012		1,047
HJ Heinz (A)		41,449		1,963
Hormel Foods		8,500		379
JM Smucker		15,148		917
Kellogg		32,867		1,660
Kimberly-Clark		53,899		3,506
Kraft Foods, Cl A		226,898		7,002
Kroger		85,159		1,844
Lorillard		20,176		1,620
McCormick (A)		17,361		730
Mead Johnson Nutrition, Cl A		27,134		1,544
Molson Coors Brewing, Cl B		20,546		970
PepsiCo		207,985		13,819
Philip Morris International		239,665		13,426
Procter & Gamble		371,101		22,255
Reynolds American (A)		22,340		1,327
Safeway		51,546		1,091

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

S&P 500 Index Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Sara Lee		87,687	$	1,178
SUPERVALU (A)		26,397		304
SYSCO (A)		78,220		2,231
Tyson Foods, Cl A		37,890		607
Walgreen (A)		128,944		4,320
Wal-Mart Stores		261,544		13,998
Whole Foods Market * (A)		19,100		709
				152,924
Energy — 10.7%
Anadarko Petroleum		65,280		3,724
Apache (A)		47,400		4,634
Baker Hughes (A)		56,749		2,418
Cabot Oil & Gas (A)		13,600		410
Cameron International *		31,500		1,353
Chesapeake Energy (A)		83,900		1,900
Chevron		262,478		21,274
ConocoPhillips		194,943		11,196
Consol Energy (A)		29,900		1,105
Denbury Resources * (A)		52,100		828
Devon Energy		56,913		3,685
Diamond Offshore Drilling (A)		8,900		603
El Paso (A)		93,294		1,155
EOG Resources (A)		33,344		3,100
Equities		19,300		696
Exxon Mobil		667,298		41,232
FMC Technologies * (A)		15,500		1,058
Halliburton		119,279		3,945
Helmerich & Payne (A)		13,900		562
Hess		38,075		2,251
Marathon Oil		93,756		3,103
Massey Energy (A)		13,900		431
Murphy Oil		24,963		1,546
Nabors Industries * (A)		37,978		686
National Oilwell Varco		54,868		2,440
Noble Energy (A)		22,700		1,705
Occidental Petroleum		105,659		8,273
Peabody Energy (A)		34,700		1,701
Pioneer Natural Resources (A)		15,400		1,001
QEP Resources		23,400		705
Range Resources		21,200		808
Rowan *		14,597		443
Schlumberger		178,843		11,019
Southwestern Energy *		46,000		1,538
Spectra Energy		83,561		1,884
Sunoco (A)		16,457		601
Tesoro (A)		16,700		223
Valero Energy		72,808		1,275
Williams		75,565		1,444
				147,955
Financials — 15.3%
ACE		43,900		2,557
Aflac		62,008		3,206
Allstate		70,159		2,214
American Express		136,815		5,750
American International Group * (A)		18,008		704
Ameriprise Financial		33,184		1,571
AON (A)		35,329		1,382
Apartment Investment & Management, Cl A † (A)		15,239		326
Assurant		14,800		602

Description	Shares		Market Value ($ Thousands)
AvalonBay Communities † (A)		11,108	$	1,154
Bank of America		1,311,228		17,190
Bank of New York Mellon		159,686		4,173
BB&T (A)		89,597		2,157
Berkshire Hathaway, Cl B * (A)		226,147		18,698
Boston Properties † (A)		18,000		1,496
Capital One Financial		59,062		2,336
CB Richard Ellis Group, Cl A * (A)		34,600		632
Charles Schwab (A)		126,127		1,753
Chubb		42,256		2,408
Cincinnati Financial (A)		20,079		579
Citigroup *		3,106,185		12,114
CME Group		8,507		2,216
Comerica		23,183		861
Discover Financial Services		69,630		1,162
E*Trade Financial *		26,543		386
Equity Residential † (A)		36,440		1,733
Federated Investors, Cl B (A)		10,545		240
Fifth Third Bancorp		101,711		1,224
First Horizon National * (A)		28,389		324
Franklin Resources		19,515		2,086
Genworth Financial, Cl A *		67,000		819
Goldman Sachs Group		67,456		9,753
Hartford Financial Services Group		57,386		1,317
HCP † (A)		41,100		1,479
Health Care † (A)		15,900		753
Host Hotels & Resorts † (A)		84,048		1,217
Hudson City Bancorp (A)		60,300		739
Huntington Bancshares (A)		88,375		501
IntercontinentalExchange *		9,300		974
Invesco		61,900		1,314
Janus Capital Group (A)		22,177		243
JPMorgan Chase		519,857		19,791
Keycorp		117,383		934
Kimco Realty †		52,100		821
Legg Mason (A)		20,800		630
Leucadia National		24,000		567
Lincoln National		38,798		928
Loews		41,549		1,575
M&T Bank (A)		10,561		864
Marsh & McLennan (A)		70,850		1,709
Marshall & Ilsley		71,170		501
MetLife (A)		117,726		4,527
Moody’s (A)		26,808		670
Morgan Stanley		183,761		4,535
NASDAQ OMX Group *		19,100		371
Northern Trust		31,105		1,500
NYSE Euronext		34,700		991
People’s United Financial		47,600		623
Plum Creek Timber † (A)		20,535		725
PNC Financial Services Group		69,275		3,596
Principal Financial Group		41,548		1,077
Progressive		87,368		1,823
Prologis † (A)		60,060		708
Prudential Financial		61,466		3,330
Public Storage †		18,028		1,749
Regions Financial (A)		164,663		1,197
Simon Property Group † (A)		38,602		3,580
SLM *		65,143		752
State Street		66,191		2,493

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

S&P 500 Index Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
SunTrust Banks		64,296	$	1,661
T. Rowe Price Group		33,408		1,673
Torchmark (A)		10,405		553
Travelers		61,552		3,207
Unum Group		42,452		940
US Bancorp		251,706		5,442
Ventas † (A)		20,000		1,031
Vornado Realty Trust † (A)		20,973		1,794
Wells Fargo		680,963		17,113
Weyerhaeuser (A)		70,340		1,109
XL Group, Cl A		43,605		945
Zions Bancorporation (A)		21,760		465
				210,843
Health Care — 11.4%
Abbott Laboratories		202,146		10,560
Aetna		56,102		1,773
Allergan		40,566		2,699
AmerisourceBergen		37,092		1,137
Amgen *		124,718		6,873
Baxter International		78,538		3,747
Becton Dickinson		30,162		2,235
Biogen Idec *		32,000		1,796
Boston Scientific * (A)		196,012		1,202
Bristol-Myers Squibb		225,775		6,121
C.R. Bard (A)		12,688		1,033
Cardinal Health		46,955		1,551
CareFusion *		22,677		563
Celgene *		60,800		3,503
Cephalon * (A)		9,500		593
Cerner * (A)		8,700		731
Cigna		36,271		1,298
Coventry Health Care *		18,513		399
DaVita *		13,600		939
Dentsply International (A)		18,400		588
Eli Lilly		133,430		4,874
Express Scripts *		72,304		3,521
Forest Laboratories *		36,063		1,116
Genzyme *		33,332		2,359
Gilead Sciences * (A)		109,172		3,888
Hospira *		21,604		1,232
Humana *		22,597		1,135
Intuitive Surgical * (A)		5,120		1,453
Johnson & Johnson		360,282		22,323
King Pharmaceuticals *		31,686		316
Laboratory Corp of America Holdings * (A)		13,763		1,079
Life Technologies *		23,843		1,113
McKesson		35,269		2,179
Medco Health Solutions *		56,816		2,958
Medtronic		141,217		4,742
Merck		402,344		14,810
Mylan Laboratories * (A)		38,911		732
Patterson		11,300		324
PerkinElmer		14,040		325
Pfizer		1,054,176		18,100
Quest Diagnostics (A)		20,024		1,011
St. Jude Medical *		43,456		1,710
Stryker		44,642		2,234
Tenet Healthcare *		51,876		245
Thermo Fisher Scientific *		53,143		2,545
UnitedHealth Group		148,147		5,201
Varian Medical Systems * (A)		15,700		950

Description	Shares		Market Value ($ Thousands)
Waters *		12,197	$	863
Watson Pharmaceuticals *		14,071		595
WellPoint *		52,398		2,968
Zimmer Holdings *		26,455		1,384
				157,626
Industrials — 10.5%
3M		92,782		8,045
Avery Dennison		13,715		509
Boeing		95,632		6,363
C.H. Robinson Worldwide (A)		22,000		1,538
Caterpillar (A)		81,897		6,444
Cintas (A)		18,307		504
CSX		51,450		2,846
Cummins		26,240		2,377
Danaher		68,096		2,765
Deere (A)		56,002		3,908
Dover		24,737		1,292
Dun & Bradstreet		6,300		467
Eaton		21,969		1,812
Emerson Electric		98,206		5,172
Equifax		15,725		491
Expeditors International of Washington		27,900		1,290
Fastenal (A)		19,300		1,026
FedEx		41,305		3,532
Flowserve		7,100		777
Fluor (A)		23,444		1,161
General Dynamics		50,926		3,199
General Electric		1,394,674		22,664
Goodrich		16,620		1,225
Honeywell International		100,855		4,432
Illinois Tool Works (A)		65,824		3,095
ITT		23,500		1,101
Jacobs Engineering Group *		16,900		654
L-3 Communications Holdings		15,023		1,086
Lockheed Martin		38,894		2,772
Masco		47,668		525
Norfolk Southern		48,926		2,912
Northrop Grumman		39,519		2,396
PACCAR (A)		47,091		2,267
Pall		15,495		645
Parker Hannifin		21,471		1,504
Pitney Bowes (A)		28,375		607
Precision Castparts		18,400		2,343
Quanta Services * (A)		28,600		546
Raytheon		49,268		2,252
Republic Services		43,283		1,320
Robert Half International (A)		18,927		492
Rockwell Automation		18,726		1,156
Rockwell Collins		20,878		1,216
Roper Industries (A)		12,000		782
RR Donnelley & Sons		27,111		460
Ryder System		7,254		310
Southwest Airlines		98,649		1,289
Stericycle * (A)		10,900		757
Textron (A)		34,598		711
Tyco International		66,900		2,457
Union Pacific		65,994		5,398
United Parcel Service, Cl B		128,811		8,590
United Technologies		121,432		8,650
Waste Management (A)		63,728		2,278

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

S&P 500 Index Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
WW Grainger (A)		7,965	$	949
				145,359
Information Technology — 18.5%
Adobe Systems * (A)		68,836		1,800
Advanced Micro Devices * (A)		70,763		503
Agilent Technologies *		46,506		1,552
Akamai Technologies * (A)		23,800		1,194
Altera (A)		38,051		1,148
Amphenol, Cl A		22,700		1,112
Analog Devices		39,499		1,239
Apple *		119,431		33,888
Applied Materials		173,550		2,027
Autodesk *		29,317		937
Automatic Data Processing		65,150		2,738
BMC Software * (A)		23,449		949
Broadcom, Cl A (A)		55,736		1,972
CA		50,527		1,067
Cisco Systems *		746,604		16,351
Citrix Systems * (A)		24,842		1,695
Cognizant Technology Solutions, Cl A * (A)		39,500		2,547
Computer Sciences		21,033		967
Compuware * (A)		30,175		257
Corning		205,778		3,762
Dell *		227,274		2,945
eBay *		149,932		3,658
Electronic Arts *		43,978		723
EMC *		268,040		5,444
Fidelity National Information Services		32,565		883
First Solar * (A)		6,340		934
Fiserv *		19,980		1,075
Flir Systems *		19,200		494
Google, Cl A *		32,491		17,084
Harris		16,700		740
Hewlett-Packard		296,465		12,472
Intel		728,315		14,006
International Business Machines		164,937		22,125
Intuit *		36,986		1,620
Iron Mountain (A)		24,800		554
Jabil Circuit		25,979		374
JDS Uniphase *		29,456		365
Juniper Networks * (A)		67,800		2,058
Kla-Tencor (A)		21,771		767
Lexmark International, Cl A *		10,239		457
Linear Technology (A)		28,494		876
LSI Logic *		91,546		417
Mastercard, Cl A		12,800		2,867
McAfee *		19,600		926
MEMC Electronic Materials * (A)		29,300		349
Microchip Technology (A)		24,800		780
Micron Technology * (A)		109,569		790
Microsoft		995,893		24,390
Molex (A)		17,460		365
Monster Worldwide * (A)		15,034		195
Motorola * (A)		306,806		2,617
National Semiconductor		29,337		375
NetApp * (A)		45,476		2,264
Novell *		40,689		243
Novellus Systems * (A)		11,727		312
Nvidia *		74,048		865
Oracle		505,988		13,586

Description	Shares		Market Value ($ Thousands)
Paychex		41,456	$	1,140
QLogic *		14,148		250
Qualcomm		209,832		9,467
Red Hat *		25,400		1,042
SAIC *		38,844		621
Salesforce.com * (A)		14,900		1,666
SanDisk * (A)		30,200		1,107
Symantec *		106,447		1,615
Tellabs		50,899		379
Teradata *		20,668		797
Teradyne * (A)		26,107		291
Texas Instruments		160,949		4,368
Total System Services		24,380		372
VeriSign * (A)		23,000		730
Visa, Cl A		64,972		4,825
Western Digital *		30,400		863
Western Union		89,812		1,587
Xerox		177,606		1,838
Xilinx (A)		32,409		862
Yahoo! *		176,238		2,497
				255,017
Materials — 3.5%
Air Products & Chemicals		27,426		2,272
Airgas (A)		10,400		707
AK Steel Holding		14,800		204
Alcoa (A)		134,535		1,629
Allegheny Technologies (A)		12,259		570
Ball		11,891		700
Bemis		14,490		460
CF Industries Holdings		9,390		897
Cliffs Natural Resources (A)		18,011		1,151
Dow Chemical (A)		152,075		4,176
E.I. Du Pont de Nemours		118,135		5,271
Eastman Chemical		9,608		711
Ecolab		30,930		1,569
FMC		9,500		650
Freeport-McMoRan Copper & Gold, Cl B		61,468		5,249
International Flavors & Fragrances		9,794		475
International Paper (A)		56,070		1,219
MeadWestvaco		21,515		525
Monsanto		71,048		3,405
Newmont Mining		63,908		4,014
Nucor (A)		41,882		1,600
Owens-Illinois *		22,600		634
Pactiv *		16,587		547
PPG Industries		21,545		1,569
Praxair (A)		39,799		3,592
Sealed Air		19,828		446
Sherwin-Williams (A)		12,116		910
Sigma-Aldrich (A)		15,536		938
Titanium Metals *		12,100		242
United States Steel (A)		18,326		803
Vulcan Materials (A)		17,449		644
				47,779
Telecommunication Services — 3.2%
American Tower, Cl A *		53,200		2,727
AT&T		771,940		22,077
CenturyTel (A)		39,792		1,570
Frontier Communications (A)		129,025		1,054

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

S&P 500 Index Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
MetroPCS Communications * (A)		33,700	$	352
Qwest Communications International (A)		227,426		1,426
Sprint Nextel *		384,022		1,778
Verizon Communications		370,098		12,062
Windstream (A)		61,246		753
				43,799
Utilities — 3.5%
AES *		85,990		976
Allegheny Energy		20,968		514
Ameren		31,044		882
American Electric Power		61,915		2,243
Centerpoint Energy		55,068		866
CMS Energy (A)		28,292		510
Consolidated Edison (A)		36,333		1,752
Constellation Energy Group		25,599		825
Dominion Resources (A)		78,640		3,433
DTE Energy		22,345		1,026
Duke Energy (A)		173,522		3,073
Edison International		42,553		1,463
Entergy		25,064		1,918
Exelon		87,054		3,707
FirstEnergy (A)		39,587		1,526
Integrys Energy Group (A)		10,134		527
NextEra Energy (A)		53,920		2,933
Nicor (A)		5,325		244
NiSource		34,479		600
Northeast Utilities		23,100		683
NRG Energy * (A)		33,700		702
Oneok		13,900		626
Pepco Holdings (A)		27,500		511
PG&E (A)		51,129		2,322
Pinnacle West Capital		14,749		609
PPL		60,371		1,644
Progress Energy		36,583		1,625
Public Service Enterprise Group		66,230		2,191
SCANA		14,500		585
Sempra Energy		31,965		1,720
Southern		108,635		4,046
TECO Energy		26,212		454
Wisconsin Energy		15,600		902
Xcel Energy		59,219		1,360
				48,998
Total Common Stock (Cost $774,456) ($ Thousands)				1,351,806
AFFILIATED PARTNERSHIP — 13.4%
SEI Liquidity Fund, L.P., 0.230% ** †† (B)		187,500,597		184,420
Total Affiliated Partnership (Cost $187,501) ($ Thousands)				184,420
CASH EQUIVALENT — 2.6%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		35,344,525		35,345
Total Cash Equivalent (Cost $35,345) ($ Thousands)				35,345

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
U.S. TREASURY OBLIGATIONS (C) (D) — 0.2%
U.S. Treasury Bills
0.125%, 11/18/10	$	250	$	250
0.080%, 10/14/10		2,895		2,895
Total U.S. Treasury Obligations (Cost $3,145) ($ Thousands)				3,145
Total Investments — 114.1% (Cost $1,000,447) ($ Thousands)			$	1,574,716

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		687		Dec-2010	$	1,154

For the period ended September 30, 2010, the total amount of all open futures contracts as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $1,380,547 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $182,445 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $184,420 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

L.P. — Limited Partnership

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

S&P 500 Index Fund

September 30, 2010

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	1,351,806	$	—	$	—	$	1,351,806
Affiliated Partnership		—		184,420		—		184,420
Cash Equivalent		35,345		—		—		35,345
U.S. Treasury Obligations		—		3,145		—		3,145
Total Investments in Securities	$	1,387,151	$	187,565	$	—	$	1,574,716

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	1,154	$	—	$	—	$	1,154

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 96.8%
Consumer Discretionary — 15.6%
Aaron Rents		7,650	$	141
American Greetings, Cl A		11,700		218
American Public Education * (A)		30,193		992
America’s Car-Mart *		6,800		171
Ameristar Casinos (A)		9,100		159
AnnTaylor Stores *		13,800		279
Arbitron		2,200		62
ATC Technology *		6,200		154
Barnes & Noble (A)		1,900		31
Belo, Cl A *		37,600		233
Big 5 Sporting Goods		8,600		115
Bluegreen *		1,884		5
Blyth		4,100		169
Brinker International		8,063		152
Brown Shoe		22,500		258
Brunswick (A)		26,000		396
Buckle (A)		2,700		72
Buffalo Wild Wings *		6,060		290
Cabela’s * (A)		20,925		397
California Pizza Kitchen *		21,700		370
Callaway Golf (A)		31,048		217
Capella Education * (A)		11,400		885
Carter’s *		4,200		111
Casual Male Retail Group *		40,500		165
Cato, Cl A		27,494		736
CEC Entertainment *		10,850		373
Cheesecake Factory *		16,016		424
Childrens Place Retail Stores *		2,500		122
Choice Hotels International		1,200		44
Christopher & Banks		15,300		121
Cinemark Holdings		5,300		85
Citi Trends *		5,800		140
Cooper Tire & Rubber		34,502		677
Core-Mark Holding *		600		19
Corinthian Colleges *		10,000		70
Cracker Barrel Old Country Store		13,608		691
CROCS *		39,575		515
Dana Holding * (A)		61,300		755
Deckers Outdoor * (A)		14,600		729
Denny’s * (A)		11,300		35
Dillard’s, Cl A (A)		7,900		187
DineEquity *		2,500		112
Domino’s Pizza *		8,800		116
DSW, Cl A * (A)		16,000		459
Eastman Kodak * (A)		43,700		183
Entercom Communications *		33,448		263
Ethan Allen Interiors (A)		3,500		61
EW Scripps, Cl A *		8,200		65
Finish Line, Cl A		59,500		828
Foot Locker		32,420		471
Gaylord Entertainment * (A)		12,454		380
Genesco *		12,100		362
Grand Canyon Education * (A)		4,900		107
Hillenbrand		10,137		218
HOT Topic		22,300		134
HSN *		24,155		722
Iconix Brand Group *		49,375		864
Insight Enterprises *		22,400		350
Interval Leisure Group *		2,800		38
Isle of Capri Casinos * (A)		20,425		146

Description	Shares		Market Value ($ Thousands)
Jo-Ann Stores *		3,811	$	170
Jones Apparel Group		26,650		523
JOS A Bank Clothiers *		6,600		281
Kirkland’s *		31,302		434
Knology *		13,436		180
Lakeland Industries *		17,200		157
La-Z-Boy, Cl Z * (A)		33,200		280
Leggett & Platt		3,700		84
Lennar, Cl A (A)		9,225		142
Libbey *		18,100		238
Liberty Media - Starz, Ser A *		700		45
Life Time Fitness * (A)		14,824		585
Lifetime Brands * (A)		6,000		91
Lincoln Educational Services *		6,100		88
Liz Claiborne * (A)		32,200		196
Matthews International, Cl A		4,000		141
MDC Partners, Cl A		69,000		923
Media General, Cl A * (A)		9,600		86
Men’s Wearhouse		3,300		79
Meredith (A)		5,700		190
Monro Muffler		4,900		226
Morningstar *		1,700		76
National CineMedia		6,002		107
New Frontier Media *		53,500		95
Nutri/System (A)		5,700		110
OfficeMax *		25,830		338
Oxford Industries		19,600		466
Peet’s Coffee & Tea * (A)		1,100		38
Penske Auto Group *		7,500		99
PF Chang’s China Bistro (A)		8,900		411
Pier 1 Imports *		23,800		195
Polaris Industries (A)		3,700		241
Pool		4,700		94
Pre-Paid Legal Services * (A)		2,700		169
RC2 *		15,453		324
Regal Entertainment Group, Cl A		16,300		214
Regis		12,100		232
Retail Ventures *		10,000		107
Ryland Group (A)		16,090		288
Scholastic (A)		9,124		254
Sealy * (A)		10,200		25
Service International		11,099		96
Shoe Carnival *		6,600		133
Shutterfly *		9,500		247
Skechers U.S.A., Cl A *		20,800		489
Sotheby’s (A)		16,500		608
Spartan Motors		5,800		27
Stage Stores		36,608		476
Stamps.com *		3,400		44
Steiner Leisure *		7,223		275
Stewart Enterprises, Cl A		23,600		127
Stoneridge *		6,100		64
Sturm Ruger (A)		35,980		491
Systemax		1,200		15
Talbots * (A)		40,325		528
Tempur-Pedic International *		29,202		905
Tenneco *		36,148		1,047
Tesla Motors *		3,400		69
Texas Roadhouse, Cl A *		5,600		79
Timberland, Cl A *		5,100		101
Tractor Supply		7,642		303
Tupperware Brands		2,100		96

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Ulta Salon Cosmetics & Fragrance * (A)		14,900	$	435
Under Armour, Cl A * (A)		5,475		247
Universal Technical Institute		13,900		272
Valassis Communications *		17,400		590
Volcom *		3,700		71
Wendy’s, Cl A		48,821		221
Wolverine World Wide		6,700		194
				34,916
Consumer Staples — 3.1%
Andersons		5,300		201
Cal-Maine Foods (A)		6,400		186
Casey’s General Stores (A)		14,414		602
China-Biotics * (A)		6,700		74
Chiquita Brands International *		48,978		648
Cosan SA Industria e Comercio (Brazil)		7,100		105
Darling International *		36,500		311
Del Monte Foods		37,000		485
Flowers Foods		3,900		97
Heckmann *		9,200		36
Herbalife		3,054		185
J&J Snack Foods		5,600		235
Kulim Malaysia		37,300		104
Lancaster Colony (A)		8,197		389
Mead Johnson Nutrition, Cl A		1,200		68
Medifast * (A)		24,033		652
Nu Skin Enterprises, Cl A		8,200		236
Pantry *		4,300		104
Pricesmart		2,300		67
Ruddick (A)		24,465		848
TreeHouse Foods *		14,280		658
United Natural Foods *		6,854		227
Universal		2,600		104
USANA Health Sciences *		400		16
Vector Group (A)		8,721		163
Viterra, Cl Common Subscription Recei *		11,700		102
Winn-Dixie Stores *		5,493		39
				6,942
Energy — 6.2%
Allis-Chalmers Energy * (A)		17,600		73
American Oil & Gas * (A)		24,200		196
Approach Resources *		28,400		317
Berry Petroleum, Cl A		21,498		682
BPZ Resources * (A)		20,300		78
Brigham Exploration *		27,600		517
CARBO Ceramics (A)		7,200		583
Clayton Williams Energy *		1,800		91
Clean Energy Fuels * (A)		6,200		88
Complete Production Services *		18,538		379
Comstock Resources * (A)		42,750		961
Contango Oil & Gas *		3,515		176
CVR Energy *		13,400		111
Delek US Holdings		5,100		37
Dril-Quip *		200		13
Energy Partners *		2,700		32
Energy XXI Bermuda * (A)		30,645		708
Exterran Holdings * (A)		7,200		164
Frontline		7,900		225
GeoMet *		49,900		43
Global Geophysical Services *		6,400		47

Description	Shares		Market Value ($ Thousands)
GMX Resources * (A)		17,300	$	84
Goodrich Petroleum * (A)		65,530		955
Gulfport Energy *		7,300		101
Helix Energy Solutions Group *		32,388		361
Holly		4,000		115
Houston American Energy (A)		3,300		33
Key Energy Services *		66,695		634
Kodiak Oil & Gas * (A)		78,666		267
Lufkin Industries		11,684		513
Matrix Service *		15,800		138
McMoRan Exploration * (A)		10,900		188
Newpark Resources *		11,200		94
Nordic American Tanker Shipping, Cl US (A)		9,900		265
Northern Oil And Gas * (A)		6,600		112
Oilsands Quest * (A)		186,777		97
Overseas Shipholding Group (A)		7,900		271
PetroHawk Energy *		59,353		958
Petroquest Energy *		5,500		33
Quicksilver Resources *		46,084		581
Scorpio Tankers *		72,174		815
Ship Finance International (A)		10,400		202
StealthGas *		26,100		114
Swift Energy *		3,600		101
Teekay Shipping		8,200		219
Tetra Technologies *		25,600		261
Tidewater (A)		2,055		92
USEC * (A)		35,800		186
Vaalco Energy *		24,440		140
Vantage Drilling * (A)		68,500		110
W&T Offshore (A)		10,800		114
World Fuel Services		12,300		320
				13,995
Financials — 16.1%
Alterra Capital Holdings (A)		9,900		197
American Campus Communities † (A)		8,800		268
American Capital *		22,363		130
American Equity Investment Life Holding (A)		11,800		121
Amtrust Financial Services		16,150		234
Anworth Mortgage Asset †		21,058		150
Apartment Investment & Management, Cl A †		4,200		90
Apollo Investment *		11,362		116
Ashford Hospitality Trust * †		9,500		86
Aspen Insurance Holdings		16,100		488
Associated Banc-Corp		15,400		203
Associated Estates Realty †		27,915		390
Assured Guaranty		14,150		242
Astoria Financial		11,700		159
Banco Latinoamericano de Exportaciones, Cl E		3,600		52
Bancorp Rhode Island		9,100		254
Bancorpsouth (A)		16,500		234
Bank of Hawaii		4,800		216
BGC Partners, Cl A		14,700		88
BioMed Realty Trust †		13,185		236
Boston Private Financial Holdings (A)		43,100		282
Brandywine Realty Trust †		4,300		53

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Brasil Brokers Participacoes		20,400	$	89
Calamos Asset Management, Cl A		5,300		61
Capstead Mortgage †		36,700		399
Cardinal Financial		19,500		187
Cathay General Bancorp		26,000		309
CBL & Associates Properties † (A)		9,700		127
Cedar Shopping Centers †		30,074		183
Chatham Lodging Trust †		8,700		162
Chemical Financial		4,600		95
Chimera Investment †		49,000		194
CNO Financial Group *		18,200		101
Cogdell Spencer †		48,803		308
Cohen & Steers (A)		3,800		83
Colonial Properties Trust †		21,350		346
Community Bank System (A)		10,800		249
Cowen Group, Cl A *		27,900		92
Crawford, Cl B *		2,200		5
CreXus Investment †		8,100		97
CVB Financial (A)		15,000		113
Delphi Financial Group, Cl A		14,800		370
Developers Diversified Realty †		32,342		363
DiamondRock Hospitality †		58,786		558
Dollar Financial *		5,462		114
Duff & Phelps		4,700		63
DuPont Fabros Technology †		19,773		497
EastGroup Properties †		2,122		79
Education Realty Trust †		48,000		343
eHealth *		2,700		35
EMC Insurance Group		800		17
Encore Bancshares *		9,150		66
Entertainment Properties Trust †		1,800		78
Equity Lifestyle Properties †		2,162		118
Equity One †		13,000		219
ESSA Bancorp		8,486		101
FBL Financial Group, Cl A		943		24
FBR Capital Markets *		86,700		272
Federated Investors, Cl B (A)		4,500		102
Financial Engines *		20,025		266
First American Financial		17,950		268
First Bancorp * (A)		11,200		3
First Cash Financial Services *		672		19
First Commonwealth Financial		13,600		74
First Financial Bancorp		44,490		742
FirstMerit		10,200		187
Flushing Financial		6,600		76
FNB (Pennsylvania) (A)		16,800		144
Fpic Insurance Group *		9,625		338
Fulton Financial		27,930		253
General Shopping Brasil (Brazil) *		17,300		102
Getty Realty †		6,863		184
Gluskin Sheff + Associates		3,000		53
Great American Group *		54,800		24
Greenhill (A)		6,666		529
Hancock Holding		15,270		459
Hanover Insurance Group		11,100		522
Harleysville Group		2,300		75
Hatteras Financial †		9,500		270
Hercules Technology Growth Capital		10,500		106
Highwoods Properties †		25,437		826
Home Bancshares		11,300		230
Home Federal Bancorp		8,800		107

Description	Shares		Market Value ($ Thousands)
Home Properties †		1,800	$	95
Hudson Valley Holding (A)		3,370		66
Infinity Property & Casualty		2,200		107
Inland Real Estate †		68,587		570
Investors Real Estate Trust † (A)		8,000		67
Kennedy-Wilson Holdings * (A)		10,500		111
Knight Capital Group, Cl A *		5,800		72
Lexington Realty Trust † (A)		48,077		344
Life Partners Holdings (A)		1,250		24
LTC Properties †		15,700		401
Maiden Holdings		31,100		237
MB Financial		5,600		91
MCG Capital		3,800		22
Meadowbrook Insurance Group		76,900		690
Medical Properties Trust †		20,200		205
MF Global Holdings *		35,250		254
MFA Financial †		82,600		630
MGIC Investment * (A)		78,585		725
Mid-America Apartment Communities † (A)		2,651		155
National Penn Bancshares		98,441		615
National Retail Properties † (A)		19,850		498
Nationwide Health Properties †		2,200		85
Navios Maritime Acquisition *		35,500		195
Nelnet, Cl A		12,000		274
Omega Healthcare Investors †		1,100		25
optionsXpress Holdings *		12,453		191
Pacific Continental		19,050		172
PacWest Bancorp		15,305		292
Pennsylvania Real Estate Investment Trust † (A)		15,723		186
PHH *		6,600		139
Phoenix *		26,100		55
Piedmont Office Realty Trust, Cl A † (A)		5,500		104
Platinum Underwriters Holdings		2,300		100
PMA Capital, Cl A *		2,390		18
Post Properties †		16,350		457
Potlatch †		8,477		288
Prospect Capital (A)		13,100		127
Prosperity Bancshares		4,300		140
Protective Life		6,200		135
Provident Financial Services		7,000		87
Radian Group (A)		90,431		707
Redwood Trust †		11,400		165
Renasant (A)		11,100		169
RLI		6,063		343
S&T Bancorp (A)		4,900		85
Safety Insurance Group		4,300		181
SCBT Financial		7,700		240
SeaBright Insurance Holdings		7,300		59
Seacoast Banking Corp of Florida *		51,084		62
Selective Insurance Group		6,700		109
Senior Housing Properties Trust †		5,500		129
Simmons First National, Cl A		6,800		192
Sovran Self Storage †		4,200		159
Starwood Property Trust †		10,000		199
Stifel Financial *		2,346		109
Sunstone Hotel Investors * †		44,980		408
Susquehanna Bancshares		61,040		515
SWS Group		12,000		86
Tanger Factory Outlet Centers †		2,200		104

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Taubman Centers †		5,100	$	228
THL Credit		13,900		164
Titanium Asset Management PIPE * (C) (D)		2,000		6
Titanium Asset Management		13,400		12
Tower Group		5,846		137
Trustco Bank NY (A)		46,000		256
Trustmark (A)		19,486		424
Umpqua Holdings		24,632		279
United Bankshares		2,655		66
United Financial Bancorp		7,200		97
Uranium Participation *		16,300		104
U-Store-It Trust †		46,100		385
Validus Holdings		9,500		250
ViewPoint Financial Group		13,860		128
Waddell & Reed Financial, Cl A		11,745		321
Walter Investment Management †		2,900		51
Washington Federal		8,600		131
Washington Real Estate Investment Trust †		21,000		666
Westamerica Bancorporation (A)		4,300		234
Western Alliance Bancorp * (A)		50,612		339
Whitney Holding		72,916		596
Wilmington Trust		10,300		93
Wilshire Bancorp		3,600		24
World Acceptance * (A)		20,991		927
WSFS Financial		5,400		203
Zions Bancorporation (A)		10,600		226
				36,182
Health Care — 12.8%
Abaxis *		22,325		516
Accuray *		17,500		109
Acorda Therapeutics *		19,300		637
Air Methods *		10,505		437
Albany Molecular Research *		5,400		35
Alere * (A)		12,900		399
Align Technology *		36,260		710
Allos Therapeutics *		9,800		46
Allscripts Healthcare Solutions *		10,560		195
Almost Family * (A)		1,600		48
Alnylam Pharmaceuticals * (A)		2,100		26
AMAG Pharmaceuticals *		14,312		246
Amedisys * (A)		2,300		55
American Medical Systems Holdings * (A)		8,400		165
AMERIGROUP *		17,706		752
AMN Healthcare Services *		1,201		6
Amsurg *		13,800		241
Analogic		2,400		108
Angiodynamics *		4,600		70
Arena Pharmaceuticals *		43,279		68
Arthrocare *		1,100		30
Assisted Living Concepts, Cl A *		9,800		298
BioMarin Pharmaceuticals *		24,392		545
Bio-Reference Labs *		2,400		50
Bruker BioSciences * (A)		31,533		442
Cantel Medical		8,800		143
Cardiome Pharma *		42,373		259
Catalyst Health Solutions *		4,300		151
Cepheid *		3,100		58
Chemed		14,708		838
Conmed *		3,800		85

Description	Shares		Market Value ($ Thousands)
Cooper		10,204	$	472
Cubist Pharmaceuticals *		24,385		570
Durect *		111,625		284
Emergent Biosolutions *		1,185		21
Ensign Group		5,400		97
eResearchTechnology *		21,600		162
Exactech *		12,200		199
Exelixis *		18,500		73
Genoptix *		2,500		36
Gen-Probe *		3,600		174
Gentiva Health Services *		9,300		203
Haemonetics *		3,300		193
Halozyme Therapeutics *		12,700		98
Health Management Associates, Cl A *		65,983		506
Healthsouth *		26,669		512
Hill-Rom Holdings		13,800		495
Hi-Tech Pharmacal * (A)		1,500		30
HMS Holdings *		3,400		200
ICU Medical *		28,043		1,046
Idexx Laboratories * (A)		1,100		68
Immucor *		3,400		67
Immunogen * (A)		20,500		129
Impax Laboratories *		27,800		549
Incyte * (A)		28,100		449
Inspire Pharmaceuticals *		8,900		53
Invacare		1,958		52
IPC The Hospitalist *		16,998		464
Isis Pharmaceuticals *		1,300		11
Kendle International *		5,700		53
Kensey Nash *		1,400		40
Kindred Healthcare *		6,000		78
King Pharmaceuticals *		33,450		333
LCA-Vision *		7,600		42
LHC Group *		4,000		93
LifePoint Hospitals * (A)		13,400		470
Magellan Health Services *		13,763		650
Masimo (A)		14,693		401
Medical Action Industries *		2,700		24
Medicines *		13,800		196
Medicis Pharmaceutical, Cl A		29,813		884
Medivation *		3,726		48
Mednax *		1,300		69
Meridian Bioscience		14,600		319
Merit Medical Systems *		1,288		21
MWI Veterinary Supply *		1,300		75
Nektar Therapeutics * (A)		28,509		421
Nighthawk Radiology Holdings *		4,500		29
NuVasive * (A)		27,874		980
NxStage Medical * (A)		10,100		193
Omnicell *		9,929		130
Optimer Pharmaceuticals * (A)		12,003		110
Orthofix International *		3,091		97
Owens & Minor		5,100		145
Par Pharmaceutical *		9,600		279
Parexel International *		18,981		439
PDL BioPharma		96,011		505
Perrigo		1,600		103
Pharmaceutical Product Development		6,507		161
Pharmasset *		6,296		186
Pozen *		49,013		347
Providence Service *		16,600		272

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
PSS World Medical * (A)		10,400	$	222
Psychiatric Solutions *		4,900		164
Questcor Pharmaceuticals * (A)		85,625		849
Quidel * (A)		17,929		197
RehabCare Group *		16,300		330
Rigel Pharmaceuticals * (A)		14,200		119
Salix Pharmaceuticals *		14,800		588
Savient Pharmaceuticals * (A)		36,771		841
SIGA Technologies * (A)		16,193		137
Sirona Dental Systems *		8,300		299
Spectrum Pharmaceuticals * (A)		22,300		93
StemCells * (A)		20,200		17
STERIS		28,848		958
Sunrise Senior Living * (A)		29,300		101
Targacept *		3,400		76
Techne		3,700		228
Theravance * (A)		6,600		133
Zoll Medical *		3,500		113
				28,639
Industrials — 13.6%
AAR *		22,109		412
ABM Industries		11,375		246
Acacia Research - Acacia Technologies *		3,800		67
Actuant, Cl A		16,550		380
Aegean Marine Petroleum Network		64,034		1,066
AerCap Holdings *		58,253		689
Aerovironment * (A)		17,563		391
Air Transport Services Group *		10,900		66
Aircastle		11,700		99
Airtran Holdings * (A)		58,100		427
Alaska Air Group *		4,600		235
American Science & Engineering		1,800		132
AO Smith		4,200		243
APAC Customer Services *		65,629		372
Apogee Enterprises		4,800		44
Applied Industrial Technologies		15,000		459
Armstrong World Industries *		8,135		338
ArvinMeritor * (A)		20,900		325
Atlas Air Worldwide Holdings *		8,524		429
Avis Budget Group * (A)		20,931		244
AZZ		800		34
Baldor Electric		10,300		416
BE Aerospace *		18,000		546
Beacon Roofing Supply * (A)		12,600		184
Belden		3,100		82
Briggs & Stratton		25,500		485
Carlisle		3,300		99
Celadon Group *		35,186		486
Cenveo * (A)		9,000		45
Ceradyne *		9,222		215
Chicago Bridge & Iron *		9,925		243
Clean Harbors *		1,500		102
Columbus McKinnon *		19,200		318
Consolidated Graphics *		13,011		539
Con-way (A)		3,600		111
Copa Holdings, Cl A		6,527		352
Corporate Executive Board		13,859		437
CRA International *		4,500		81
Crane		7,290		277
Cubic		10,460		427

Description	Shares		Market Value ($ Thousands)
Deluxe		5,400	$	103
Dollar Thrifty Automotive Group *		3,000		150
Douglas Dynamics		9,100		112
Dycom Industries *		35,050		350
EMCOR Group *		15,474		380
EnerNOC * (A)		8,841		278
EnerSys *		5,716		143
Ennis		8,000		143
EnPro Industries * (A)		3,600		113
Fastenal (A)		3,700		197
Force Protection *		21,600		109
Franklin Electric		900		30
FTI Consulting *		14,400		500
Genco Shipping & Trading * (A)		5,800		93
Generac Holdings *		15,400		210
Genesee & Wyoming, Cl A *		11,270		489
Geo Group *		36,250		846
GeoEye *		4,144		168
Graco		1,300		41
GrafTech International *		18,800		294
Granite Construction (A)		9,400		214
Great Lakes Dredge & Dock		73,673		428
H&E Equipment Services *		10,200		81
Hawaiian Holdings *		39,100		234
Hexcel *		30,750		547
Higher One Holdings * (A)		27,840		459
HNI (A)		7,456		214
Horizon Lines, Cl A		7,900		33
Innerworkings * (A)		72,257		475
Interface, Cl A		19,400		276
Kaman		4,300		113
Kaydon		7,200		249
Kelly Services, Cl A *		6,000		70
Kirby *		2,200		88
Knight Transportation		16,800		325
Kratos Defense & Security Solutions * (A)		8,800		94
LECG *		46,600		51
Lennox International		3,961		165
Lydall *		3,900		29
M&F Worldwide *		1,100		27
Manitowoc (A)		21,600		262
Marten Transport		2,355		55
Mcgrath Rentcorp		1,500		36
Michael Baker *		5,882		194
Mine Safety Appliances		5,500		149
Mobile Mini *		16,362		251
Mueller Industries		1,500		40
Mueller Water Products, Cl A		94,300		285
NACCO Industries, Cl A		1,000		87
Navistar International *		3,600		157
Nordson		6,100		449
Old Dominion Freight Line *		22,013		559
Pacer International *		39,900		241
Polypore International *		13,876		418
Powell Industries *		1,507		47
Quanex Building Products		10,600		183
Raven Industries		6,128		232
RBC Bearings *		8,315		283
Republic Airways Holdings *		2,900		24
Resources Connection		19,500		268
Robbins & Myers		12,200		327
Rollins		3,000		70

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
RSC Holdings * (A)		13,100	$	98
Ryder System		3,600		154
Skywest		4,500		63
Standard Register		6,400		19
Standex International (A)		8,100		196
TAL International Group		15,478		375
Teleflex		2,300		130
Tennant		4,147		128
Tetra Tech *		18,076		379
Textainer Group Holdings (A)		6,100		163
Titan Machinery *		14,625		238
Tredegar		5,300		101
TrueBlue *		10,100		138
Tutor Perini *		18,494		371
UAL * (A)		10,000		236
US Airways Group * (A)		33,100		306
US Ecology		3,304		53
Vitran *		22,205		243
Wabash National * (A)		103,217		835
Watts Water Technologies, Cl A		5,300		180
Werner Enterprises (A)		12,230		251
Woodward Governor		2,300		75
				30,413
Information Technology — 20.4%
ACI Worldwide *		2,400		54
Acme Packet * (A)		30,420		1,154
Actel *		3,900		62
Acxiom *		8,100		128
Adtran		900		32
Advent Software * (A)		3,741		195
Amkor Technology * (A)		29,900		197
Anixter International *		3,300		178
Applied Micro Circuits *		38,200		382
Archipelago Learning *		19,889		238
ArcSight *		2,300		100
Arris Group *		41,300		403
Art Technology Group *		12,400		51
Aruba Networks *		5,000		107
Atheros Communications *		28,244		744
Aviat Networks *		47,813		195
AVX		3,600		50
Benchmark Electronics *		33,038		542
Blackbaud		13,500		324
Blackboard *		2,300		83
Blue Coat Systems *		15,700		378
Brightpoint *		31,100		217
Brocade Communications Systems *		15,500		90
Cabot Microelectronics *		3,300		106
CDC Software ADR *		46,300		280
Checkpoint Systems *		8,400		171
Ciber *		78,716		237
Ciena * (A)		19,425		302
Cirrus Logic * (A)		24,100		430
Cognex		12,300		330
Coherent *		3,000		120
CommVault Systems *		22,042		574
Comtech Telecommunications		13,980		382
Comverse Technology * (A)		17,700		119
Constant Contact * (A)		16,556		355
CSG Systems International *		29,000		529
CTS		15,600		150

Description	Shares		Market Value ($ Thousands)
Cymer *		3,400	$	126
Cypress Semiconductor *		11,200		141
Daktronics (A)		7,100		70
Digi International *		38,400		364
Digital River *		13,200		449
Diodes * (A)		16,000		273
DTS *		1,165		44
Earthlink		17,000		155
Echo Global Logistics * (A)		19,324		247
Electro Rent		3,400		45
Electronics for Imaging *		6,600		80
Emulex *		10,400		109
Entegris *		11,600		54
Entropic Communications *		10,200		98
Fairchild Semiconductor International *		57,790		543
Forrester Research *		3,396		112
Global Cash Access Holdings *		44,900		183
Hackett Group *		65,600		271
Heartland Payment Systems		28,300		431
Hittite Microwave *		10,700		510
iGate		2,500		45
Imation *		36,498		341
Integrated Device Technology *		92,171		539
Integrated Silicon Solution *		17,700		152
InterDigital *		9,800		290
Intermec *		5,100		62
Intersil, Cl A (A)		13,387		157
Isilon Systems * (A)		15,800		352
IXYS *		6,300		60
j2 Global Communications *		14,900		355
Jack Henry & Associates		5,300		135
JDA Software Group *		22,064		560
KIT Digital * (A)		10,097		121
Knot *		13,400		122
Kulicke & Soffa Industries *		10,800		67
Lattice Semiconductor *		96,300		457
Lawson Software *		22,730		192
LivePerson *		5,100		43
Loral Space & Communications *		3,000		157
LTX-Credence * (A)		40,600		85
Manhattan Associates *		13,600		399
Mantech International, Cl A * (A)		10,400		412
MAXIMUS		8,600		530
Mentor Graphics *		49,310		521
Methode Electronics		46,700		424
Micrel		10,700		106
Microsemi *		4,200		72
MicroStrategy, Cl A *		9,509		824
Mitel Networks *		17,900		111
ModusLink Global Solutions *		8,600		55
MoneyGram International *		16,400		40
Move *		24,600		55
MTS Systems		5,000		155
National Instruments		6,100		199
NCR *		9,800		134
Netgear *		13,544		366
Netlogic Microsystems * (A)		21,965		606
NetSuite *		10,581		249
Novatel Wireless *		17,600		139
Novell *		27,300		163
Oclaro *		11,600		186
Omnivision Technologies * (A)		12,800		295

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
OpenTable * (A)		5,800	$	395
Openwave Systems *		5,400		9
OSI Systems *		2,700		98
Parametric Technology *		43,300		846
Park Electrochemical		13,525		356
Parkervision * (A)		38,000		28
Pegasystems (A)		9,100		283
Photronics *		59,350		314
Plantronics		24,900		841
Plexus *		12,600		370
PMC - Sierra *		11,500		85
Power Integrations		11,200		356
Power-One * (A)		46,600		424
Progress Software *		5,407		179
Quality Systems (A)		10,796		716
Quantum *		142,872		303
Quest Software *		44,938		1,105
Rackspace Hosting * (A)		8,200		213
RealNetworks *		4,900		16
RightNow Technologies *		11,620		229
Riverbed Technology * (A)		17,786		811
Rogers *		3,100		98
Rosetta Stone * (A)		14,979		318
Rubicon Technology *		7,292		166
Sanmina-SCI *		46,724		564
Sapient		56,736		679
Scansource *		3,900		108
Seachange International *		11,200		83
SRA International, Cl A *		5,100		101
Standard Microsystems *		6,900		157
Stratasys * (A)		1,099		30
SuccessFactors * (A)		22,425		563
Synaptics * (A)		3,100		87
Synchronoss Technologies *		4,400		78
SYNNEX *		2,400		68
Syntel		13,042		580
Taleo, Cl A *		10,000		290
Tech Data *		3,500		141
Tekelec *		12,719		165
TeleNav *		11,500		61
TeleTech Holdings *		17,853		265
Teradyne * (A)		103,078		1,148
Terremark Worldwide *		25,529		264
TIBCO Software * (A)		62,900		1,116
TriQuint Semiconductor *		51,614		496
TTM Technologies *		25,000		245
Ultimate Software Group *		3,757		145
Unisys *		30,250		844
United Online		49,900		285
Universal Display * (A)		5,700		134
Valueclick *		56,822		743
Veeco Instruments * (A)		17,827		622
VeriFone Holdings *		14,850		461
VistaPrint * (A)		20,448		790
Vocus *		5,200		96
Volterra Semiconductor *		12,600		271
Websense * (A)		4,090		73
Wright Express *		5,900		211
Xyratex * (A)		900		13
Zoran *		63,400		484
				45,647

Description	Shares		Market Value ($ Thousands)
Materials — 5.8%
AK Steel Holding		9,200	$	127
Allied Nevada Gold * (A)		12,000		318
AM Castle *		2,000		27
Aptargroup		2,300		105
Arch Chemicals		2,100		74
Buckeye Technologies		25,700		378
Carpenter Technology		31,740		1,070
Clearwater Paper *		4,300		327
Cytec Industries		2,161		122
Domtar		2,600		168
Ferro *		21,000		271
Globe Specialty Metals		33,200		466
Golden Star Resources *		31,300		155
Graham Packaging *		5,100		60
H.B. Fuller		12,700		252
Haynes International		11,551		403
Headwaters * (A)		15,500		56
Horsehead Holding *		39,851		393
Innophos Holdings		13,167		436
Jaguar Mining *		12,600		82
Koppers Holdings		12,400		333
Minerals Technologies		800		47
Molycorp *		5,100		144
Myers Industries		11,500		99
New Gold *		16,000		108
NewMarket		12,572		1,429
Olin		15,004		303
OM Group *		2,800		84
Omnova Solutions *		43,709		314
PolyOne *		57,940		701
Quaker Chemical		8,541		278
Rockwood Holdings *		15,474		487
RTI International Metals *		12,136		372
Schnitzer Steel Industries, Cl A		6,476		313
Schulman A		7,000		141
Sensient Technologies		4,400		134
Solutia *		26,729		428
Spartech *		10,400		85
Stepan		977		58
Universal Stainless & Alloy *		4,200		103
Worthington Industries		25,511		383
WR Grace *		46,928		1,311
				12,945
Telecommunication Services — 0.9%
Alaska Communications Systems Group (A)		28,000		284
Cincinnati Bell *		119,869		320
Cogent Communications Group *		9,605		91
Consolidated Communications Holdings		8,300		155
Frontier Communications (A)		28,400		232
Global Crossing *		11,400		147
Leap Wireless International *		7,100		88
Neutral Tandem *		8,900		106
PAETEC Holding *		50,600		208
Shenandoah Telecommunications		2,800		51
USA Mobility		11,500		184
Vonage Holdings *		33,000		84
				1,950

7 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Utilities — 2.3%
Allete		5,300	$	193
California Water Service Group		3,300		122
Cia de Saneamento de Minas Gerais-COPASA (Brazil)		6,700		102
Cleco		14,400		427
El Paso Electric *		16,370		389
Empire District Electric (A)		8,800		177
Idacorp		12,000		431
New Jersey Resources		10,304		404
Nicor		2,800		128
NorthWestern		17,800		507
PNM Resources		35,694		407
Portland General Electric		20,000		406
UGI		10,500		301
UIL Holdings		14,974		422
Unisource Energy		5,500		184
Vectren		16,576		429
Westar Energy		3,900		94
				5,123
Total Common Stock (Cost $194,448) ($ Thousands)				216,752
PREFERRED STOCK — 0.1%
Callaway Golf
7.500%, 06/20/12 (E)		700		81
GeoMet
8.000% *		5,057		51
Grubb & Ellis Cumulative *		1,700		152
Total Preferred Stock (Cost $302) ($ Thousands)				284
	Number of Warrants
WARRANTS — 0.0%
Oilsands Quest
Expires 05/12/11 *		1,200		—
Total Warrants (Cost $—) ($Thousands)				—
CONVERTIBLE BOND — 0.1%
Energy — 0.1%
Rentech CV to 249.2522
4.000%, 04/15/13	$	162		118
Total Convertible Bond (Cost $119) ($ Thousands)				118
CORPORATE OBLIGATION — 0.0%
Financials — 0.0%
Scorpio Mining PIPE
7.000%, 05/05/11 (C) (D)		21		19
Total Corporate Obligation (Cost $19) ($ Thousands)				19

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 20.0%
SEI Liquidity Fund, L.P., 0.230% ** †† (B)		44,868,654	$	44,869
Total Affiliated Partnership (Cost $44,869) ($ Thousands)				44,869
CASH EQUIVALENT — 2.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		5,592,067		5,592
Total Cash Equivalent (Cost $5,592) ($ Thousands)				5,592
U.S. TREASURY OBLIGATION (F) (G) — 0.1%
U.S. Treasury Bills
0.179%, 12/16/10	$	240	$	240
Total U.S. Treasury Obligation (Cost $240) ($ Thousands)				240
Total Investments — 119.6% (Cost $245,589) ($ Thousands)			$	267,874

8 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		39		Dec-2010	$	12

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the year.

Percentages are based on Net Assets of $223,978 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $43,356 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $44,869 ($Thousands).

(C) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of September 30, 2010 was $25 ($ Thousands) and represented 0.01% of Net Assets.

(D) Securities considered restricted and illiquid. The total value of such securities as of September 30, 2010 was $25 ($ Thousands) and represented 0.01% of Net Assets.

(E) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may not be sold to dealers in that program or other “accredited investors.” These securities have been determined to be liquid under guidelines established by the Board of Trustees.

(F) The rate reported is the effective yield at the time of purchase.

(G) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

CV — Convertible

L.P. — Limited Partnership

PIPE — Private Investment in Public Entity

Amounts designated as “—” are $0 or has been rounded to $0.

9 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Fund

September 30, 2010

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	216,734	$	12	$	6	$	216,752
Preferred Stock		—		284		—		284
Warrants		—		—		—		—
Convertible Bond		—		118		—		118
Corporate Obligation		—		—		19		19
Affiliated Partnership		—		44,869		—		44,869
Cash Equivalent		5,592		—		—		5,592
U.S. Treasury Obligation		—		240		—		240
Total Investments in Securities	$	222,326	$	45,523	$	25	$	267,874
Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	12	$	—	$	—	$	12

* Futures contracts are valued at the unrealized appreciation on the instrument.

The following is a reconciliation on the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock			Corporate Obligation
Beginning balance as of October 1, 2009	$	—		$	—
Accrued discounts/premiums		—			1
Realized gain/(loss)		(53	)		(9	)
Change in unrealized appreciation/(depreciation)		(2	)		—
Net purchases/sales		61			27
Net transfer in and/or out of Level 3		—			—
Ending balance as of September 30, 2010	$	6		$	19
Changes in unrealized gains (losses) included in earnings related to securities still held at
reporting date	$	—		$	—

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

10 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 97.4% ‡
Consumer Discretionary — 8.3%
Abercrombie & Fitch, Cl A (A)		29,809	$	1,172
American Greetings, Cl A (A)		44,900		835
America’s Car-Mart *		22,100		556
AnnTaylor Stores *		74,093		1,500
Arctic Cat *		43,600		447
ATC Technology *		34,900		863
Belo, Cl A *		142,762		885
Big Lots *		24,200		804
Blyth		6,475		267
Bob Evans Farms (A)		24,000		674
Brown Shoe		42,400		486
Cabela’s * (A)		59,800		1,135
Callaway Golf (A)		139,719		978
Casual Male Retail Group *		132,600		541
Cato, Cl A		35,000		937
Childrens Place Retail Stores * (A)		15,600		761
Coinstar *		7,800		335
Cooper Tire & Rubber (A)		141,048		2,769
Cracker Barrel Old Country Store (A)		3,200		162
CSS Industries		35,100		607
Ethan Allen Interiors (A)		62,949		1,099
Foot Locker		34,400		500
hhgregg * (A)		62,168		1,539
Iconix Brand Group *		22,800		399
Insight Enterprises *		55,900		874
International Speedway, Cl A (A)		31,963		780
Jack in the Box *		54,300		1,164
Jakks Pacific * (A)		39,700		700
Journal Communications, Cl A *		107,100		483
Lakeland Industries *		56,400		516
Libbey *		59,200		780
Lifetime Brands * (A)		19,500		294
Matthews International, Cl A		40,400		1,429
MDC Partners, Cl A		225,800		3,019
Men’s Wearhouse (A)		30,185		718
Meredith (A)		43,400		1,446
New Frontier Media *		175,200		312
O’Charleys *		50,700		365
Penske Auto Group *		5,400		71
PetSmart		23,942		838
Pool		15,300		307
RadioShack		40,400		862
Red Robin Gourmet Burgers * (A)		36,600		718
Regis (A)		76,832		1,470
Rent-A-Center (A)		103,500		2,316
Ruby Tuesday * (A)		52,100		618
Scholastic (A)		25,700		715
Scientific Games, Cl A * (A)		86,788		842
Shoe Carnival *		21,800		441
Sinclair Broadcast Group, Cl A *		68,900		484
Skechers U.S.A., Cl A *		25,100		590
Stage Stores		59,400		772
Sturm Ruger (A)		36,500		498
World Wrestling Entertainment, Cl A (A)		10,100		140
				44,813

Description	Shares		Market Value ($ Thousands)
Consumer Staples — 3.9%
BJ’s Wholesale Club *		15,091	$	626
Cal-Maine Foods (A)		16,500		478
Central Garden and Pet, Cl A *		64,733		671
Central Garden and Pet *		72,168		745
Chiquita Brands International * (A)		186,300		2,467
Corn Products International		36,815		1,380
Dean Foods *		113,898		1,163
Del Monte Foods		205,887		2,699
Dole Food * (A)		65,544		600
Fresh Del Monte Produce *		40,600		881
Ingles Markets, Cl A		31,975		531
Nash Finch (A)		10,700		455
Pantry *		77,760		1,875
Prestige Brands Holdings *		130,271		1,288
Ruddick (A)		27,200		943
Sanderson Farms (A)		14,700		636
Seneca Foods, Cl A *		19,500		511
Universal		53,300		2,137
Village Super Market, Cl A		6,740		189
Weis Markets		23,400		916
				21,191
Energy — 5.3%
Allis-Chalmers Energy * (A)		24,300		101
Alon USA Energy (A)		22,900		124
Approach Resources *		92,700		1,036
Atwood Oceanics *		45,300		1,379
Berry Petroleum, Cl A (A)		59,714		1,895
Cal Dive International * (A)		137,387		751
Comstock Resources * (A)		55,100		1,239
Energy Partners *		8,900		107
Forest Oil * (A)		53,700		1,595
Frontier Oil		88,852		1,191
GeoMet *		163,870		141
Global Geophysical Services *		20,900		152
GMX Resources * (A)		56,500		275
Goodrich Petroleum * (A)		160,285		2,335
Gulfmark Offshore, Cl A *		16,300		501
Holly (A)		51,300		1,475
Hornbeck Offshore Services * (A)		32,000		624
Key Energy Services * (A)		177,989		1,693
Matrix Service *		51,700		452
Overseas Shipholding Group (A)		14,100		484
Parker Drilling * (A)		176,000		766
Patterson-UTI Energy (A)		103,500		1,768
Penn Virginia		25,000		401
Scorpio Tankers *		152,680		1,724
SEACOR Holdings *		8,100		690
Seahawk Drilling * (A)		11,000		93
StealthGas *		85,300		371
Superior Energy Services *		51,800		1,383
Swift Energy * (A)		63,569		1,785
Tesoro (A)		37,300		498
Tidewater		14,200		636
USEC * (A)		134,800		700
World Fuel Services		26,200		681
				29,046

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Financials — 36.4%
1st Source		42,500	$	738
Advance America Cash Advance Centers		86,400		348
Agree Realty †		26,803		677
Alexandria Real Estate Equities † (A)		22,900		1,603
Alliance Financial		2,500		76
Allied World Assurance Holdings		27,500		1,556
Alterra Capital Holdings (A)		65,400		1,303
AMB Property † (A)		125,100		3,311
American Campus Communities † (A)		18,300		557
American Equity Investment Life Holding (A)		60,400		619
American Physicians Capital		21,200		879
Ameris Bancorp (A)		19,494		182
Ames National		1,500		30
Anworth Mortgage Asset † (A)		68,800		490
Arrow Financial		852		21
Ashford Hospitality Trust * †		93,000		842
Aspen Insurance Holdings		63,700		1,929
Assured Guaranty		41,000		702
Astoria Financial		59,900		816
AvalonBay Communities † (A)		13,500		1,403
Bancfirst		4,400		178
Banco Latinoamericano de Exportaciones, Cl E		71,200		1,029
Bancorp *		15,100		101
Bancorp Rhode Island		31,600		883
Bancorpsouth (A)		52,840		749
Bank of Marin Bancorp		2,200		71
Bank of the Ozarks		13,300		493
BankFinancial		11,100		102
Beneficial Mutual Bancorp *		13,600		122
Berkshire Hills Bancorp		5,200		99
BGC Partners, Cl A		106,000		633
Boston Private Financial Holdings (A)		263,703		1,725
Boston Properties † (A)		26,600		2,211
Brandywine Realty Trust †		77,500		949
Brookfield Asset Management, Cl A		81,900		2,323
Brookline Bancorp		50,000		499
Camden National		18,900		655
Camden Property Trust † (A)		39,271		1,884
Cape Bancorp *		800		6
Capital City Bank Group (A)		6,400		78
Capstead Mortgage †		38,400		417
Cardinal Financial		101,487		975
Cathay General Bancorp (A)		109,000		1,296
CBL & Associates Properties † (A)		132,200		1,726
Cedar Shopping Centers † (A)		42,300		257
Central Pacific Financial * (A)		30,300		43
Chatham Lodging Trust †		28,500		530
Chemical Financial		10,600		219
Chimera Investment †		160,700		635
Citizens & Northern		3,800		49
Citizens Republic Bancorp * (A)		61,236		55
City Holding (A)		11,500		353
CNA Surety *		32,200		577

Description	Shares		Market Value ($ Thousands)
CNB Financial		3,800	$	52
CNO Financial Group * (A)		167,500		928
CoBiz Financial (A)		31,600		176
Columbia Banking System		4,100		81
CommonWealth REIT †		46,450		1,189
Community Bank System (A)		75,700		1,742
Community Trust Bancorp		8,300		225
CreXus Investment †		33,000		397
CVB Financial (A)		211,769		1,590
Delphi Financial Group, Cl A		39,700		992
Dexus Property Group †		409,141		339
Dime Community Bancshares		16,900		234
Douglas Emmett † (A)		188,900		3,308
Duke Realty † (A)		158,600		1,838
DuPont Fabros Technology †		27,900		702
Dynex Capital † (A)		49,500		534
Eagle Bancorp * (A)		7,300		84
East West Bancorp		59,700		972
Education Realty Trust †		133,223		953
Employers Holdings		135,321		2,134
Encore Bancshares *		32,000		230
Encore Capital Group *		45,200		815
Endurance Specialty Holdings		79,508		3,164
Enterprise Bancorp		1,000		11
Enterprise Financial Services (A)		5,900		55
Equity One † (A)		79,038		1,334
Equity Residential †		37,800		1,798
ESB Financial		500		7
ESSA Bancorp (A)		28,200		334
FBL Financial Group, Cl A (A)		37,900		985
FBR Capital Markets *		284,100		892
Federated Investors, Cl B (A)		65,928		1,500
Financial Institutions (A)		6,100		108
First Bancorp * (A)		39,900		168
First Busey (A)		32,200		146
First Commonwealth Financial		18,500		101
First Community Bancshares		10,700		138
First Defiance Financial		4,300		43
First Financial (A)		5,800		171
First Financial Bancorp		142,429		2,376
First Financial Bankshares (A)		9,800		460
First Financial Holdings		28,456		317
First Financial Northwest (A)		5,100		20
First Horizon National * (A)		78,679		898
First Interstate Bancsystem, Cl A		2,800		38
First Merchants		28,200		215
First Midwest Bancorp		55,800		643
FirstMerit (A)		86,392		1,583
Flagstar Bancorp * (A)		5,240		9
Flushing Financial		92,700		1,072
FNB (Pennsylvania) (A)		154,400		1,322
Forest City Enterprises, Cl A * (A)		170,779		2,191
Fpic Insurance Group *		25,200		884
German American Bancorp (A)		2,200		38
GFI Group		104,300		484
Glacier Bancorp		14,700		215
Great American Group *		181,900		82
Great Southern Bancorp (A)		4,800		104
Green Bankshares * (A)		8,100		55
Hammerson (United Kingdom) †		98,756		614
Hancock Holding (A)		60,384		1,816
Heartland Financial USA (A)		4,600		71

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Hercules Technology Growth Capital		64,900	$	656
Heritage Financial *		3,200		45
Heritage Financial Group		800		7
Highwoods Properties †		27,700		899
Home Bancshares		51,950		1,056
Home Federal Bancorp		28,900		352
Horace Mann Educators		95,115		1,691
Hospitality Properties Trust †		54,350		1,214
Host Hotels & Resorts † (A)		141,010		2,042
Hudson Pacific Properties †		16,800		275
Hudson Valley Holding		3,300		64
IBERIABANK (A)		30,918		1,545
Independent Bank (A)		16,300		367
Infinity Property & Casualty (A)		54,896		2,677
International Bancshares (A)		83,100		1,404
Investors Bancorp *		41,000		485
Kennedy-Wilson Holdings * (A)		34,400		365
K-Fed Bancorp		800		6
Kimco Realty †		207,000		3,260
Knight Capital Group, Cl A * (A)		40,500		502
Lakeland Bancorp (A)		10,700		90
Lakeland Financial		8,400		157
Land Securities Group (United Kingdom) †		89,225		901
Liberty Property Trust † (A)		32,700		1,043
Macerich † (A)		19,040		818
Maiden Holdings		101,800		775
MainSource Financial Group (A)		66,007		504
MB Financial		37,700		611
Meadowbrook Insurance Group		234,300		2,102
Medical Properties Trust †		90,200		915
Merchants Bancshares		2,200		55
Meridian Interstate Bancorp *		4,800		51
Metro Bancorp *		10,900		113
MFA Financial †		190,914		1,457
MGIC Investment * (A)		62,800		580
Mid-America Apartment Communities † (A)		25,004		1,457
Midsouth Bancorp		1,800		25
MidWestOne Financial Group		2,000		29
Montpelier Re Holdings		65,500		1,134
Nara Bancorp *		40,800		288
NASB Financial		700		12
National Bankshares (A)		2,300		59
National Penn Bancshares		303,277		1,895
Navios Maritime Acquisition * (A)		116,300		639
NBT Bancorp		19,200		424
Nelnet, Cl A		104,300		2,387
NewAlliance Bancshares (A)		47,100		594
Northrim BanCorp		2,200		37
Northwest Bancshares (A)		33,675		377
OceanFirst Financial		40,650		499
Ocwen Financial *		57,800		586
Old National Bancorp		21,000		220
OmniAmerican Bancorp *		5,300		60
Oriental Financial Group (A)		45,800		609
Orrstown Financial Services (A)		3,100		72
Pacific Continental		5,800		52
PacWest Bancorp (A)		101,326		1,931
Park National (A)		7,449		477
Peapack Gladstone Financial		2,715		32

Description	Shares		Market Value ($ Thousands)
Pebblebrook Hotel Trust * †		48,500	$	873
Pennsylvania Real Estate Investment Trust † (A)		42,600		505
Peoples Bancorp		5,200		64
PHH *		31,000		653
Pico Holdings *		40,300		1,203
Pinnacle Financial Partners * (A)		14,000		129
Platinum Underwriters Holdings		86,534		3,766
Plum Creek Timber † (A)		94,400		3,332
Porter Bancorp		1,415		14
Presidential Life		13,900		136
PrivateBancorp, Cl A (A)		61,200		697
ProAssurance *		38,105		2,194
Prosperity Bancshares		29,100		945
Provident Financial Services (A)		45,900		567
Public Storage †		29,700		2,882
Radian Group (A)		171,500		1,341
RAIT Financial Trust * † (A)		29,400		48
Regency Centers † (A)		68,600		2,708
Reinsurance Group of America, Cl A		33,444		1,615
Renasant (A)		49,800		757
Republic Bancorp, Cl A (A)		51,804		1,095
RioCan Real Estate Investment Trust †		29,900		668
Rockville Financial		3,100		36
S&T Bancorp (A)		23,500		409
Safety Insurance Group		18,200		765
Sandy Spring Bancorp		3,100		48
Saul Centers †		35,200		1,477
SCBT Financial		34,500		1,076
SeaBright Insurance Holdings		23,900		193
Selective Insurance Group		32,400		528
Shore Bancshares		400		4
Sierra Bancorp (A)		37,700		466
Signature Bank NY * (A)		34,518		1,341
Simmons First National, Cl A		24,700		698
Simon Property Group †		25,418		2,357
South Financial Group *		21,700		6
Southside Bancshares (A)		34,943		660
Southwest Bancorp		26,900		349
StanCorp Financial Group		12,100		460
Starwood Property Trust †		32,800		652
State Bancorp		7,500		67
StellarOne		12,400		158
Sterling Bancorp, Cl N		41,000		356
Stewart Information Services (A)		28,900		327
Stifel Financial *		7,692		356
Student Loan		19,900		591
Sun Bancorp *		3,225		16
Susquehanna Bancshares		51,000		430
SVB Financial Group *		22,200		939
SWS Group		79,800		572
SY Bancorp (A)		4,400		109
Synovus Financial (A)		613,260		1,509
Terreno Realty * †		17,500		319
Territorial Bancorp		6,000		101
Texas Capital Bancshares *		2,200		38
THL Credit (A)		45,800		540
Tompkins Financial, Cl US (A)		6,170		245
Tower Bancorp		1,300		26
Trico Bancshares		8,300		128

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Trustco Bank NY (A)		60,500	$	336
Trustmark (A)		42,700		928
UDR † (A)		113,000		2,387
UMB Financial		7,600		270
Umpqua Holdings		31,900		362
Unibail (France) †		7,460		1,656
Union First Market Bankshares		6,200		81
United Bankshares (A)		7,500		187
United Community Banks * (A)		112,897		253
United Financial Bancorp		31,000		419
Validus Holdings		52,900		1,394
Ventas † (A)		28,400		1,465
Verde Realty PIPE * (B) (C)		21,100		398
ViewPoint Financial Group		45,640		422
Virginia Commerce Bancorp *		2,700		13
Vornado Realty Trust † (A)		42,097		3,601
Walter Investment Management †		44,208		773
Washington Banking		9,900		137
Washington Real Estate Investment Trust †		23,300		739
Washington Trust Bancorp (A)		5,400		103
Waterstone Financial *		3,800		15
Webster Financial		43,000		755
WesBanco (A)		15,900		260
West Bancorporation *		5,800		37
Westamerica Bancorporation (A)		3,000		163
Western Alliance Bancorp * (A)		46,600		312
Westfield Group †		113,329		1,345
Whitney Holding (A)		168,432		1,376
Willis Group Holdings		7,251		223
Wilmington Trust (A)		33,700		303
Wilshire Bancorp (A)		59,900		392
Wintrust Financial		6,100		198
WSFS Financial		22,400		840
Yadkin Valley Financial		1,000		3
Zions Bancorporation (A)		99,137		2,118
				197,768
Health Care — 4.7%
Accuray *		57,400		357
Alere *		38,800		1,200
AMN Healthcare Services *		63,700		327
Amsurg *		72,182		1,262
Assisted Living Concepts, Cl A *		32,100		977
Brookdale Senior Living *		72,500		1,182
Cambrex *		174,000		740
Cantel Medical		8,600		139
Conmed *		57,600		1,291
Cooper		24,762		1,145
Cross Country Healthcare *		60,900		438
Cubist Pharmaceuticals * (A)		29,700		695
Enzon Pharmaceuticals * (A)		43,000		484
Exactech *		39,960		652
Healthsouth * (A)		57,506		1,104
ICU Medical *		59,800		2,230
Kendle International *		34,796		324
Kindred Healthcare *		40,300		525
Kinetic Concepts * (A)		18,300		669
Magellan Health Services *		17,100		808
Medical Action Industries *		8,800		80
Medicis Pharmaceutical, Cl A		29,100		863
Metropolitan Health Networks *		50,900		193

Description	Shares		Market Value ($ Thousands)
Nighthawk Radiology Holdings *		79,300	$	506
Par Pharmaceutical *		53,500		1,555
Patterson (A)		31,502		902
PDL BioPharma		64,700		340
PharMerica *		75,200		717
Providence Service *		50,500		828
RehabCare Group *		53,400		1,080
Skilled Healthcare Group, Cl A *		73,300		288
Sun Healthcare Group *		54,400		461
Universal American Financial (A)		89,600		1,322
				25,684
Industrials — 14.9%
AAR * (A)		27,900		521
Acuity Brands (A)		20,200		894
Aegean Marine Petroleum Network		31,300		521
Air Transport Services Group *		35,500		216
Aircastle (A)		104,000		882
Airtran Holdings * (A)		190,200		1,398
Alamo Group		25,900		578
Alaska Air Group *		26,700		1,363
Ampco-Pittsburgh		27,300		678
AO Smith (A)		13,600		787
Apogee Enterprises		36,300		332
Arkansas Best		4,300		104
Astec Industries * (A)		39,000		1,113
BE Aerospace *		62,129		1,883
Beacon Roofing Supply * (A)		41,300		602
Belden		68,016		1,794
Brady, Cl A (A)		46,877		1,367
Celadon Group *		49,400		683
Clean Harbors *		22,511		1,525
Columbus McKinnon *		36,900		612
Comfort Systems USA (A)		103,000		1,105
Consolidated Graphics *		11,500		477
Courier		31,252		444
CRA International *		22,900		413
Crane		32,000		1,214
Deluxe (A)		71,200		1,362
Dycom Industries *		69,700		696
EMCOR Group *		90,700		2,230
EnPro Industries * (A)		27,900		873
Esterline Technologies *		16,100		921
Force Protection *		90,500		456
FTI Consulting * (A)		84,900		2,945
G&K Services		46,085		1,054
Gardner Denver (A)		24,513		1,316
Genco Shipping & Trading * (A)		21,500		342
Generac Holdings *		50,400		688
Geo Group *		118,800		2,774
GrafTech International *		30,900		483
Granite Construction (A)		82,800		1,883
Hudson Highland Group * (A)		21,100		73
IDEX (A)		63,223		2,245
Interface, Cl A		78,849		1,122
Kadant * (A)		58,839		1,113
Kaydon (A)		56,953		1,970
Kirby *		28,500		1,142
LECG *		152,800		168
Mueller Industries		50,900		1,348
NACCO Industries, Cl A		7,400		647

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Orion Marine Group *		38,500	$	478
Quanex Building Products		60,575		1,046
Republic Airways Holdings * (A)		21,500		178
Ryder System (A)		41,900		1,792
School Specialty * (A)		150,387		1,957
Skywest		40,400		564
Spirit Aerosystems Holdings, Cl A * (A)		44,400		885
Standex International		15,300		370
SYKES Enterprises *		93,100		1,264
TAL International Group		34,300		831
Teledyne Technologies *		75,829		3,019
Teleflex (A)		41,781		2,372
Terex * (A)		68,021		1,559
Tetra Tech *		53,759		1,127
Towers Watson, Cl A		75,411		3,709
Triumph Group		16,350		1,220
TrueBlue *		58,400		797
Tutor Perini * (A)		75,800		1,523
United Stationers * (A)		12,400		664
US Airways Group * (A)		22,000		203
VSE		13,900		490
Wabash National *		156,800		1,268
Watts Water Technologies, Cl A (A)		33,676		1,147
WESCO International * (A)		39,681		1,559
Woodward Governor		49,000		1,589
				80,968
Information Technology — 13.4%
Actel *		75,300		1,201
Anixter International * (A)		22,300		1,204
Arris Group *		76,600		748
Arrow Electronics *		55,100		1,473
Benchmark Electronics *		89,000		1,460
Black Box		18,400		590
Brocade Communications Systems *		231,318		1,351
CACI International, Cl A * (A)		61,799		2,797
CDC Software ADR *		151,600		917
Ciber *		302,900		912
Coherent *		46,259		1,851
Comtech Telecommunications		42,329		1,158
CSG Systems International *		59,400		1,083
CTS		54,900		528
Diebold (A)		93,837		2,917
Digi International *		125,900		1,195
Digital River * (A)		104,533		3,558
Earthlink (A)		151,900		1,381
Emulex *		98,135		1,025
Fair Isaac (A)		37,900		935
Fairchild Semiconductor International * (A)		127,600		1,199
Global Cash Access Holdings *		147,000		600
Hackett Group *		214,700		887
Imation *		47,000		439
Integrated Device Technology *		110,800		648
Intermec * (A)		205,290		2,517
Jack Henry & Associates		31,800		811
Lawson Software *		383,686		3,250
LeCroy *		38,900		307
Lexmark International, Cl A *		21,300		950

Description	Shares		Market Value ($ Thousands)
Littelfuse *		31,277	$	1,367
LTX-Credence * (A)		181,100		379
Manhattan Associates * (A)		57,300		1,682
Mantech International, Cl A * (A)		37,000		1,465
MAXIMUS		11,100		683
MicroStrategy, Cl A *		21,300		1,845
Monster Worldwide * (A)		79,100		1,025
Multi-Fineline Electronix *		30,200		664
Orbotech *		88,300		881
Parametric Technology *		87,592		1,711
Photronics * (A)		117,200		620
Plantronics		11,700		395
Progress Software *		38,500		1,274
Radisys * (A)		68,500		645
RF Micro Devices *		128,500		789
Richardson Electronics		52,504		551
Rudolph Technologies *		102,300		850
SRA International, Cl A * (A)		59,800		1,179
SYNNEX * (A)		22,000		619
Synopsys *		66,645		1,651
Tech Data *		21,400		863
Technitrol (A)		63,300		279
TNS *		74,438		1,262
Ultra Clean Holdings *		57,000		491
Ultratech * (A)		71,100		1,216
United Online		88,200		505
Varian Semiconductor Equipment Associates *		38,200		1,099
Web.com Group *		61,500		338
Websense *		59,200		1,050
Xyratex * (A)		118,609		1,760
Zebra Technologies, Cl A * (A)		58,325		1,962
Zoran *		239,232		1,828
				72,820
Materials — 4.8%
Aptargroup		24,191		1,105
Buckeye Technologies		128,100		1,884
Cabot		29,403		958
Cytec Industries		19,458		1,097
Eagle Materials		13,300		315
Glatfelter		51,600		628
Globe Specialty Metals		85,900		1,206
Graham Packaging *		16,900		200
H.B. Fuller		78,700		1,564
Huntsman		114,689		1,326
Innophos Holdings		27,100		897
Innospec *		54,900		836
Kaiser Aluminum (A)		11,000		471
Minerals Technologies		8,000		471
Myers Industries		64,100		551
NewMarket		14,300		1,625
OM Group * (A)		73,029		2,200
Packaging Corp of America		47,450		1,099
PolyOne *		85,800		1,037
Quaker Chemical		39,900		1,299
RTI International Metals * (A)		45,194		1,384
Schweitzer-Mauduit International		20,909		1,219
Sensient Technologies		51,500		1,570
Stepan		14,900		881
				25,823

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Telecommunication Services — 0.3%
Cincinnati Bell *		242,900	$	649
USA Mobility		45,100		723
				1,372
Utilities — 5.4%
AGL Resources		57,490		2,205
Allete		43,800		1,596
Avista		61,500		1,284
California Water Service Group		10,700		395
Cleco		61,000		1,807
El Paso Electric *		64,000		1,522
Empire District Electric (A)		36,800		741
Great Plains Energy (A)		161,122		3,045
Idacorp		52,824		1,897
Nicor		9,300		426
Northwest Natural Gas (A)		9,700		460
NorthWestern (A)		75,500		2,152
Portland General Electric		265,504		5,384
South Jersey Industries		20,880		1,033
Southwest Gas		17,700		595
UGI		34,400		984
UIL Holdings		21,690		611
Unisource Energy		17,400		582
Vectren		42,000		1,087
Westar Energy (A)		55,293		1,340
				29,146
Total Common Stock (Cost $466,397) ($ Thousands)				528,631
PREFERRED STOCK — 0.0%
GeoMet
8.000%*		16,610		171
Total Preferred Stock (Cost $166) ($ Thousands)				171
	Number of Warrants
WARRANTS — 0.0%
Washington Mutual Expires 2050 (D)		30,242		12
Total Warrants (Cost $—) ($Thousands)				12
AFFILIATED PARTNERSHIP — 24.9%
SEI Liquidity Fund, L.P., 0.230% ** †† (E)		139,060,084		135,061
Total Affiliated Partnership (Cost $139,060) ($ Thousands)				135,061
CASH EQUIVALENT — 2.2%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%** ††		12,211,958		12,212
Total Cash Equivalent (Cost $12,212) ($ Thousands)				12,212

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
U.S. TREASURY OBLIGATION (F) (G) — 0.9%
U.S. Treasury Bills
0.200%, 12/16/10	$	4,755	$	4,753
Total U.S. Treasury Obligation (Cost $4,753) ($ Thousands)				4,753
Total Investments — 125.4% (Cost $622,588) ($ Thousands)			$	680,840

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		128		Dec-2010	$	502

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the year.

Percentages are based on Net Assets of $542,871 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $135,142 ($ Thousands).

(B) Securities considered illiquid and restricted. The total market value of such securities as of September 30, 2010 was $398 ($ Thousands) and represented 0.07% of Net Assets.

(C) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of September 30, 2010 was $398 ($ Thousands) and represented 0.07% of Net Assets.

(D) This warrant represents a potential distribution settlement in a legal claim and does not have a strike price or expiration date.

(E) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $135,061 ($Thousands).

(F) The rate reported is the effective yield at the time of purchase.

(G) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

PIPE — Private Investment in Public Entity

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Value Fund

September 30, 2010

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	528,233	$	—	$	398	$	528,631
Preferred Stock		—		171		—		171
Warrants		12		—		—		12
Affiliated Partnership		—		135,061		—		135,061
Cash Equivalent		12,212		—		—		12,212
U.S. Treasury Obligation		—		4,753		—		4,753
Total Investments in Securities	$	540,457	$	139,985	$	398	$	680,840
Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	502	$	—	$	—	$	502

* Futures contracts are valued at the unrealized appreciation on the instrument.

The following is reconciliation on the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock
Beginning balance as of October 1, 2009	$	445
Accrued discounts/premiums		—
Realized gain/(loss)		—
Change in unrealized depreciation)		(47	)
Net purchases/sales		—
Net transfer in and/or out of Level 3		—
Ending balance as of September 30, 2010	$	398
Changes in unrealized gains (losses) included in earnings to securities still held at reporting date	$	(47	)

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

7 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 98.2% ‡
Consumer Discretionary — 17.7%
American Axle & Manufacturing Holdings *		690	$	6
American Greetings, Cl A (A)		35,790		665
American Public Education * (A)		75,470		2,480
Amerigon * (A)		20,680		213
Ameristar Casinos (A)		1,600		28
AnnTaylor Stores *		27,960		566
Arbitron		3,000		84
ATC Technology *		9,600		238
Bally Technologies *		12,760		446
Belo, Cl A *		49,192		305
Big 5 Sporting Goods (A)		12,100		162
Blue Nile * (A)		3,954		176
Bon-Ton Stores (A)		6,430		65
Bridgepoint Education *		23,849		369
Brinker International (A)		12,637		238
Brown Shoe		25,296		290
Brunswick (A)		27,460		418
Buckle (A)		9,838		261
Buffalo Wild Wings * (A)		19,855		951
Cabela’s * (A)		49,950		948
California Pizza Kitchen *		33,800		577
Capella Education * (A)		27,161		2,108
Career Education * (A)		15,094		324
Cato, Cl A		35,588		952
Cheesecake Factory * (A)		25,084		664
Childrens Place Retail Stores *		3,700		181
Chipotle Mexican Grill, Cl A *		2,700		464
Christopher & Banks		18,350		145
Citi Trends * (A)		10,400		252
Cooper Tire & Rubber		39,018		766
Corinthian Colleges *		24,990		175
Cracker Barrel Old Country Store		19,609		995
CROCS * (A)		94,800		1,233
Dana Holding *		96,600		1,190
Deckers Outdoor * (A)		28,476		1,423
Denny’s * (A)		18,700		58
Dick’s Sporting Goods * (A)		20,087		563
Dillard’s, Cl A (A)		4,100		97
DineEquity *		1,933		87
Domino’s Pizza *		22,749		301
DSW, Cl A * (A)		18,000		517
Entercom Communications * (A)		18,500		145
EW Scripps, Cl A *		18,228		144
Finish Line, Cl A (A)		121,239		1,686
Foot Locker		20,630		300
Fred’s, Cl A		3,850		45
Gentex		6,000		117
Gordmans Stores *		11,230		130
Grand Canyon Education * (A)		41,316		906
Gymboree * (A)		5,346		222
Hibbett Sports *		20,043		500
Hillenbrand		10,300		222
HSN *		47,845		1,431
Iconix Brand Group *		66,662		1,167
Insight Enterprises *		20,876		327
Interval Leisure Group *		4,200		57
Isle of Capri Casinos * (A)		3,804		27
J Crew Group *		44,795		1,506

Description	Shares		Market Value ($ Thousands)
Jarden		47,365	$	1,475
Jo-Ann Stores * (A)		6,112		272
JOS A Bank Clothiers * (A)		12,750		543
K12 * (A)		28,245		820
Kirkland’s *		51,598		715
Knology *		24,064		323
La-Z-Boy, Cl Z * (A)		72,060		608
Lee Enterprises *		4,200		11
Leggett & Platt		20,500		467
Liberty Media - Capital, Ser A *		1,100		57
Life Time Fitness * (A)		47,896		1,890
Lin TV, Cl A *		5,700		25
Live Nation *		87,675		866
Liz Claiborne *		46,900		285
Maidenform Brands *		13,912		401
Marcus		1,171		14
Matthews International, Cl A		6,519		231
Meritage Homes *		41,585		816
Monro Muffler		6,900		318
National CineMedia		60,965		1,091
Nutri/System (A)		17,327		333
NVR *		1,080		699
Oxford Industries		29,300		697
Peet’s Coffee & Tea * (A)		21,552		738
PetMed Express (A)		6,866		120
PetSmart		20,930		733
PF Chang’s China Bistro (A)		17,827		824
Pier 1 Imports *		41,600		341
Polaris Industries (A)		3,200		208
Pre-Paid Legal Services * (A)		4,200		262
Retail Ventures *		17,100		184
Saks *		177,435		1,526
Sally Beauty Holdings * (A)		6,700		75
Select Comfort *		33,998		231
Shutterfly *		8,900		231
Sinclair Broadcast Group, Cl A *		65,437		459
Sirius XM Radio * (A)		69,600		84
Skechers U.S.A., Cl A * (A)		20,800		489
Sotheby’s (A)		47,185		1,737
Stage Stores		700		9
Stamps.com *		5,619		73
Steiner Leisure *		6,977		266
Sturm Ruger (A)		61,580		840
Superior Industries International		5,500		95
Talbots *		198,870		2,605
Tempur-Pedic International *		69,030		2,140
Tenneco *		44,385		1,286
Timberland, Cl A *		7,800		154
Tractor Supply (A)		37,937		1,505
True Religion Apparel *		37,540		801
Tupperware Brands		10,562		483
Ulta Salon Cosmetics & Fragrance *		26,692		779
Under Armour, Cl A *		13,109		590
Universal Technical Institute		31,073		608
Valassis Communications *		26,400		895
Volcom * (A)		6,052		116
Warnaco Group *		14,598		746
Williams-Sonoma		9,293		295
Wolverine World Wide		9,057		263
World Wrestling Entertainment, Cl A (A)		10,100		141

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Zumiez *		66,820	$	1,414
				68,216
Consumer Staples — 2.4%
Cal-Maine Foods (A)		8,758		254
Casey’s General Stores (A)		15,928		665
Darling International *		57,100		486
Diamond Foods (A)		11,430		468
Green Mountain Coffee Roasters * (A)		13,100		409
Heckmann * (A)		9,600		37
Herbalife		7,715		466
J&J Snack Foods		8,700		365
Lancaster Colony (A)		12,703		603
Medifast * (A)		41,167		1,117
Nash Finch		9,288		395
Nu Skin Enterprises, Cl A		14,500		418
Ruddick		14,400		499
Sanderson Farms (A)		7,898		342
United Natural Foods * (A)		20,201		670
Universal		7,200		289
USANA Health Sciences * (A)		5,735		231
Vector Group (A)		75,730		1,416
				9,130
Energy — 5.5%
American Oil & Gas * (A)		37,000		300
Berry Petroleum, Cl A		3,800		121
Brigham Exploration *		60,000		1,125
CARBO Ceramics (A)		19,500		1,579
Clayton Williams Energy *		2,800		142
Clean Energy Fuels * (A)		14,100		200
Comstock Resources * (A)		110,822		2,492
Contango Oil & Gas *		4,085		205
Delek US Holdings		5,365		38
Dresser-Rand Group *		19,075		704
Dril-Quip *		300		19
Energy XXI Bermuda * (A)		70,710		1,634
Frontline		15,453		439
Goodrich Petroleum * (A)		153,488		2,236
Gulf Island Fabrication		6,917		126
Gulfport Energy *		10,800		150
Houston American Energy (A)		19,900		199
Infinity Bio-Energy *		741,494		—
L&L Energy * (A)		8,360		67
Lufkin Industries		15,864		696
McMoRan Exploration * (A)		17,500		301
Newpark Resources *		21,300		179
Nordic American Tanker Shipping, Cl US (A)		14,300		383
Northern Oil And Gas * (A)		3,800		64
Oasis Petroleum *		10,049		195
Overseas Shipholding Group (A)		1,600		55
PetroHawk Energy *		142,109		2,294
Petroquest Energy *		16,400		100
Quicksilver Resources *		110,369		1,391
RPC		3,900		83
Scorpio Tankers *		61,240		691
Ship Finance International (A)		14,900		289
Tetra Technologies *		24,200		247
Vaalco Energy * (A)		42,760		245
Willbros Group * (A)		29,936		274

Description	Shares		Market Value ($ Thousands)
World Fuel Services		68,297	$	1,776
				21,039
Financials — 6.4%
Affiliated Managers Group *		19,686		1,536
Alexander’s †		300		95
American Equity Investment Life Holding		26,700		273
Apollo Investment *		2,900		30
Associated Estates Realty †		6,600		92
Banco Latinoamericano de Exportaciones, Cl E		2,900		42
Bank of Hawaii (A)		6,100		274
BGC Partners, Cl A		25,700		153
Calamos Asset Management, Cl A		9,725		112
CapitalSource		204,045		1,090
Capstead Mortgage †		5,400		59
Cardtronics *		64,414		994
Cash Store Financial Services		49,770		747
CBL & Associates Properties †		3,100		40
Cohen & Steers (A)		7,319		159
Credit Acceptance *		12,486		753
Digital Realty Trust † (A)		7,200		444
DuPont Fabros Technology †		15,327		385
EastGroup Properties †		3,378		126
Eaton Vance		27,810		808
eHealth *		4,300		56
Entertainment Properties Trust †		6,300		272
Equity Lifestyle Properties †		3,438		187
Equity One †		13,157		222
Essex Property Trust †		1,600		175
FBL Financial Group, Cl A		2,800		73
Financial Engines *		106,151		1,410
First American Financial		43,025		643
First Cash Financial Services *		1,028		28
General Motors Financial *		2,400		59
Getty Realty †		11,498		309
Greenhill		10,444		828
Hatteras Financial † (A)		4,000		114
Hercules Technology Growth Capital		10,689		108
Home Properties †		2,800		148
Jones Lang LaSalle		13,525		1,167
LTC Properties †		15,855		405
MarketAxess Holdings		111,808		1,899
MF Global Holdings *		84,444		608
MFA Financial †		60,111		459
MGIC Investment *		187,894		1,734
Mid-America Apartment Communities †		2,949		172
MSCI, Cl A *		22,567		749
Nelnet, Cl A		12,300		281
Omega Healthcare Investors †		1,700		38
optionsXpress Holdings * (A)		18,047		277
Portfolio Recovery Associates * (A)		3,300		213
Potlatch † (A)		4,823		164
Protective Life		4,200		91
Realty Income † (A)		2,100		71
Senior Housing Properties Trust †		1,200		28
Stifel Financial *		2,133		99

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
SVB Financial Group *		19,425	$	822
SWS Group		6,057		43
Tanger Factory Outlet Centers † (A)		3,600		170
TFS Financial		22,700		209
Titanium Asset Management * (B) (C)		140,900		403
Tompkins Financial, Cl US		800		32
Tower Group		7,054		165
Trustco Bank NY (A)		49,477		275
Value Creation * (B) (C)		145,600		142
Walter Investment Management †		3,600		63
Washington Real Estate Investment Trust †		3,100		98
World Acceptance *		17,494		773
				24,494
Health Care — 16.6%
Abaxis *		73,692		1,702
Achillion Pharmaceuticals *		78,565		237
Acorda Therapeutics *		62,199		2,054
Affymetrix * (A)		2,038		9
Air Methods *		15,195		632
Albany Molecular Research *		2,515		16
Align Technology * (A)		101,274		1,983
Allos Therapeutics *		15,200		72
Allscripts Healthcare Solutions *		12,840		237
Almost Family * (A)		2,800		83
Alnylam Pharmaceuticals * (A)		3,400		42
AMAG Pharmaceuticals * (A)		34,245		589
Amedisys * (A)		7,492		178
American Medical Systems Holdings * (A)		8,600		168
AMERIGROUP *		19,531		829
AMN Healthcare Services *		10,099		52
Amylin Pharmaceuticals *		21,300		444
Analogic		2,356		106
Arthrocare *		2,600		71
ATHENAHEALTH INC *		32,850		1,085
Auxilium Pharmaceuticals * (A)		10,797		268
BioMarin Pharmaceuticals * (A)		60,035		1,342
BioMimetic Therapeutics *		19,993		228
Bio-Reference Labs *		6,000		125
Biotime *		2,300		11
Bruker BioSciences * (A)		75,914		1,065
Cadence Pharmaceuticals * (A)		29,831		249
Cantel Medical		16,500		267
Cardiome Pharma *		101,484		619
Catalyst Health Solutions *		32,495		1,144
Cepheid * (A)		36,705		687
Chemed (A)		24,333		1,386
Computer Programs & Systems		3,854		164
Conceptus * (A)		92,243		1,268
Corvel *		3,473		147
Cubist Pharmaceuticals * (A)		60,437		1,414
Dionex * (A)		2,714		235
Durect *		267,103		678
Emergent Biosolutions *		2,415		42
eResearchTechnology *		38,446		288
Exact Sciences * (A)		22,495		163
Exelixis * (A)		23,400		92
Furiex Pharmaceuticals *		390		4

Description	Shares		Market Value ($ Thousands)
Genoptix *		4,927	$	70
Gen-Probe *		5,349		259
Gentiva Health Services *		12,400		271
Haemonetics *		14,475		847
Halozyme Therapeutics *		19,900		153
Healthsouth * (A)		86,656		1,664
HeartWare International *		15,341		1,055
Hill-Rom Holdings		13,500		485
Hi-Tech Pharmacal * (A)		2,300		47
HMS Holdings * (A)		7,638		450
Human Genome Sciences * (A)		23,308		694
ICU Medical *		2,300		86
Immucor *		35,766		709
Immunogen * (A)		32,100		201
Impax Laboratories *		43,000		850
Incyte * (A)		91,105		1,457
Integra LifeSciences Holdings * (A)		4,720		186
IPC The Hospitalist *		49,451		1,351
Isis Pharmaceuticals * (A)		1,900		16
Kensey Nash *		4,800		139
Landauer		7,373		462
LCA-Vision * (A)		17,400		97
LHC Group *		3,581		83
Luminex * (A)		20,901		335
Magellan Health Services *		2,362		112
Martek Biosciences * (A)		7,274		165
Masimo		35,166		960
Medicis Pharmaceutical, Cl A		15,420		457
Medivation * (A)		6,374		83
Meridian Bioscience		33,101		724
Merit Medical Systems *		2,520		40
MWI Veterinary Supply *		16,217		936
Myriad Genetics *		38,455		631
National Healthcare		4,006		149
Natus Medical *		17,130		250
Nektar Therapeutics * (A)		56,891		840
Neogen *		3,100		105
NPS Pharmaceuticals *		33,708		230
NuVasive * (A)		69,934		2,458
NxStage Medical * (A)		12,400		237
Obagi Medical Products *		31,380		330
Omnicell *		97,534		1,276
Onyx Pharmaceuticals *		5,639		149
Optimer Pharmaceuticals * (A)		18,697		171
Orthofix International *		4,209		132
Owens & Minor		26,571		756
Par Pharmaceutical *		724		21
Parexel International *		55,873		1,292
PDL BioPharma (A)		291,037		1,531
Perrigo		111		7
Pharmaceutical Product Development		4,687		116
Pharmacyclics * (A)		5,900		47
Pharmasset *		9,904		292
Pozen *		117,355		831
PSS World Medical * (A)		70,485		1,507
Psychiatric Solutions *		7,300		245
Questcor Pharmaceuticals * (A)		128,975		1,279
Quidel * (A)		9,050		100
Salix Pharmaceuticals *		35,100		1,394
Savient Pharmaceuticals * (A)		57,629		1,318

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Seattle Genetics *		9,100	$	141
SIGA Technologies * (A)		29,007		245
Sirona Dental Systems * (A)		16,184		583
Spectrum Pharmaceuticals * (A)		34,700		145
StemCells * (A)		58,000		48
STERIS		59,720		1,984
Sunrise Senior Living * (A)		45,400		156
Targacept *		5,000		112
Techne		23,637		1,459
Theravance * (A)		54,435		1,094
United Therapeutics *		6,922		388
Universal American Financial		7,800		115
Valeant Pharmaceuticals International * (A)		36,532		915
Vanda Pharmaceuticals *		3,600		24
Viropharma *		37,387		557
Zoll Medical *		12,995		419
				63,998
Industrials — 16.5%
Acacia Research - Acacia Technologies *		4,100		72
Actuant, Cl A		8,553		196
Acuity Brands (A)		31,662		1,401
Administaff		12,387		334
Advisory Board * (A)		5,928		262
Aegean Marine Petroleum Network		160,822		2,676
AerCap Holdings *		139,360		1,649
Aerovironment * (A)		42,073		936
Aircastle		24,000		204
Alaska Air Group *		6,033		308
Albany International, Cl A		4,200		80
Allegiant Travel, Cl A (A)		1,000		42
Alliant Techsystems *		10,035		757
American Science & Engineering		3,100		228
AO Smith		5,516		319
APAC Customer Services * (A)		102,771		582
Apogee Enterprises		10,754		99
Applied Industrial Technologies		14,700		450
Armstrong World Industries * (A)		12,865		534
ArvinMeritor * (A)		40,100		623
Avis Budget Group * (A)		19,869		231
AZZ		3,200		137
Badger Meter		1,935		78
Barnes Group (A)		46,549		819
Belden		2,000		53
Brady, Cl A		4,324		126
Briggs & Stratton		21,076		401
Carlisle		45,225		1,355
Celadon Group *		48,120		665
Chart Industries *		11,513		234
Chicago Bridge & Iron *		23,775		581
Clean Harbors * (A)		2,200		149
Comfort Systems USA		3,800		41
Consolidated Graphics *		7,200		298
Copa Holdings, Cl A		15,725		848
Copart *		31,922		1,052
Corporate Executive Board		33,234		1,049
CoStar Group * (A)		48,988		2,386
Cubic		18,583		758

Description	Shares		Market Value ($ Thousands)
Curtiss-Wright		2,195	$	67
Deluxe		14,733		282
Dollar Thrifty Automotive Group *		4,500		226
EnerNOC * (A)		39,239		1,232
EnerSys *		5,684		142
EnPro Industries * (A)		2,700		84
Forward Air		3,168		83
Franklin Electric		400		13
Gardner Denver		23,740		1,274
GenCorp *		66,980		330
Genesee & Wyoming, Cl A *		4,030		175
GeoEye * (A)		14,258		577
GrafTech International *		15,800		247
Graham (A)		18,157		282
Hawaiian Holdings * (A)		68,571		411
Healthcare Services Group		28,917		659
Heico, Cl A		14,002		477
Hexcel *		24,000		427
Higher One Holdings *		66,564		1,098
HNI (A)		12,744		367
Horizon Lines, Cl A		100,876		424
ICF International *		20,041		502
IHS, Cl A *		11,040		751
II-VI *		12,797		478
Innerworkings * (A)		243,246		1,598
Interface, Cl A		105,315		1,499
JB Hunt Transport Services		5,700		198
Kaman		23,098		605
Kansas City Southern *		3,700		138
Kaydon (A)		22,091		764
Kelly Services, Cl A * (A)		9,300		109
Knight Transportation		54,439		1,052
Landstar System		30,195		1,166
Lennox International		7,339		306
Marten Transport		8,145		189
Michael Baker *		7,918		261
Mine Safety Appliances		12,000		325
Mobile Mini *		39,193		601
MYR Group * (A)		19,089		313
NACCO Industries, Cl A		1,600		140
Nordson		29,610		2,182
Old Dominion Freight Line *		25,776		655
Owens Corning *		9,300		238
Pacer International *		62,800		379
Polypore International * (A)		24,500		739
Powell Industries *		4,593		143
Quanex Building Products		16,100		278
Raven Industries		8,472		321
RBC Bearings *		19,919		677
Republic Airways Holdings * (A)		19,200		159
Resources Connection		105,375		1,450
Ritchie Bros. Auctioneers		48,300		1,003
Rollins		40,928		957
Rush Enterprises, Cl A *		51,074		783
Sauer-Danfoss *		1,800		38
Standard Parking *		72,700		1,243
Standard Register		7,582		22
TAL International Group		31,200		756
Teledyne Technologies *		6,029		240
Tennant (A)		28,915		894
Tetra Tech *		16,227		340
Textainer Group Holdings (A)		3,700		99

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Timken		1,400	$	54
Titan Machinery * (A)		35,401		577
TransDigm Group		20,910		1,297
Tredegar		10,879		206
TrueBlue *		9,600		131
Tutor Perini *		8,714		175
UAL * (A)		19,421		459
US Airways Group * (A)		6,012		55
US Ecology		3,300		53
Vitran *		53,148		582
Wabtec		26,100		1,247
Watts Water Technologies, Cl A		4,400		150
WESCO International *		43,615		1,714
Woodward Governor		3,583		116
				63,297
Information Technology — 28.0%
ACI Worldwide *		14,055		315
Acme Packet * (A)		65,801		2,497
Actuate *		34,796		179
Acxiom *		8,400		133
Adtran		13,241		467
Advanced Energy Industries *		31,808		415
Advent Software * (A)		28,263		1,475
Amkor Technology * (A)		66,656		438
Ancestry.com *		16,145		368
AOL *		46,259		1,145
Applied Micro Circuits * (A)		59,700		597
Archipelago Learning * (A)		47,596		570
ArcSight *		3,300		144
Ariba * (A)		20,400		386
Arris Group *		64,549		631
Art Technology Group * (A)		197,706		817
Aruba Networks *		4,800		102
AsiaInfo-Linkage *		36,105		712
Atheros Communications *		88,796		2,340
Atmel *		174,365		1,388
ATMI *		57,381		853
Aviat Networks *		3,200		13
AVX		3,700		51
Benchmark Electronics *		19,342		317
Blackbaud		29,600		712
Blackboard *		31,387		1,131
Blue Coat Systems *		37,620		905
Brightpoint *		85,341		597
Cabot Microelectronics *		5,849		188
CACI International, Cl A *		3,770		171
Ceva *		98,245		1,405
Checkpoint Systems *		11,716		238
Ciena * (A)		46,500		724
Cirrus Logic * (A)		36,500		651
Cogent *		20,534		218
Cognex		16,409		440
Coherent *		4,200		168
CommScope *		35,995		855
CommVault Systems *		43,920		1,143
Concur Technologies * (A)		7,315		362
Constant Contact * (A)		39,634		849
CSG Systems International *		21,200		387
CTS		32,504		313
Daktronics (A)		17,130		168
DealerTrack Holdings * (A)		20,388		348

Description	Shares		Market Value ($ Thousands)
DemandTec *		35,344	$	333
Diamond Management & Technology Consultants		1,800		23
Diodes * (A)		14,087		241
DTS *		59,270		2,262
Earthlink		50,271		457
Echo Global Logistics * (A)		46,148		589
Emulex *		15,622		163
Entegris *		7,600		35
Entropic Communications *		72,979		701
Euronet Worldwide *		61,487		1,106
Finisar * (A)		23,300		438
Forrester Research *		5,404		179
Gartner *		35,625		1,049
GSI Commerce * (A)		34,876		862
Hackett Group *		10,733		44
Harmonic *		13,057		90
Heartland Payment Systems		56,708		863
Hittite Microwave *		18,516		882
Hypercom *		27,520		179
iGate		9,900		180
Imation *		44,431		415
Infinera * (A)		9,890		115
Integrated Device Technology *		78,600		460
Integrated Silicon Solution *		26,100		225
InterDigital * (A)		18,607		551
Intermec *		49,896		612
Internet Capital Group *		45,279		499
Intersil, Cl A		28,900		338
Isilon Systems * (A)		36,191		806
IXYS *		26,466		253
j2 Global Communications * (A)		57,325		1,364
Jack Henry & Associates		10,000		255
Kenexa *		7,100		124
Knot * (A)		37,792		345
Kulicke & Soffa Industries *		17,600		109
L-1 Identity Solutions, Cl 1 *		28,796		338
Lattice Semiconductor *		149,800		712
Loral Space & Communications *		4,600		240
LTX-Credence * (A)		62,000		130
Manhattan Associates *		23,800		698
Marchex, Cl A		2,100		11
MAXIMUS		15,281		941
Meru Networks * (A)		23,809		410
Methode Electronics		109,874		998
Micrel (A)		27,974		276
Microsemi *		38,556		661
MicroStrategy, Cl A *		23,278		2,016
Mindspeed Technologies *		12,070		94
MIPS Technologies *		31,394		305
MKS Instruments *		18,751		337
Monotype Imaging Holdings *		26,429		242
Multi-Fineline Electronix *		10,955		241
National Instruments		6,300		206
NCR *		4,900		67
Netgear *		8,056		218
Netlogic Microsystems * (A)		66,329		1,829
Netscout Systems *		8,046		165
NetSuite *		25,342		597
Nuance Communications * (A)		11,868		186
Oclaro * (A)		30,525		489
Omnivision Technologies *		7,400		171

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
OpenTable * (A)		17,000	$	1,157
Parametric Technology *		23,700		463
Park Electrochemical		18,175		479
Pegasystems (A)		25,600		795
Plantronics		40,984		1,384
Plexus *		10,525		309
Power Integrations (A)		40,440		1,286
Power-One * (A)		65,400		594
Progress Software *		3,193		106
PROS Holdings *		67,259		624
Quality Systems (A)		23,663		1,569
Quantum *		116,800		248
Quest Software * (A)		111,282		2,736
Rackspace Hosting * (A)		15,100		392
Radisys *		1,501		14
RealNetworks * (A)		27,600		90
RF Micro Devices *		81,941		503
RightNow Technologies *		24,664		486
Riverbed Technology * (A)		41,103		1,873
Rofin-Sinar Technologies *		5,964		151
Rogers *		3,654		115
Rosetta Stone *		36,468		774
Rubicon Technology *		17,469		396
Sanmina-SCI *		80,800		976
Sapient		62,703		751
SAVVIS *		38,579		813
Scansource * (A)		11,590		322
Smith Micro Software *		40,309		401
Solera Holdings		10,500		464
Sonic Solutions * (A)		46,836		533
Sourcefire * (A)		8,990		259
SRA International, Cl A *		7,811		154
SS&C Technologies Holdings *		94,980		1,501
Standard Microsystems *		10,006		228
STEC * (A)		17,908		223
Stratasys * (A)		1,601		44
SuccessFactors * (A)		43,680		1,097
Synaptics * (A)		6,654		187
Synchronoss Technologies * (A)		30,470		543
Syntel		40,589		1,806
Taleo, Cl A *		30,728		891
Tekelec *		5,230		68
TeleTech Holdings *		27,547		409
Teradyne *		217,250		2,420
Terremark Worldwide *		61,139		632
Tessera Technologies *		13,157		243
TIBCO Software * (A)		134,800		2,391
Trimble Navigation *		24,030		842
TriQuint Semiconductor *		22,847		219
TTM Technologies *		11,968		117
Tyler Technologies *		4,072		82
Ultimate Software Group *		5,943		230
Ultra Clean Holdings *		3,300		28
Ultratech *		1,814		31
Unisys * (A)		60,999		1,702
United Online		108,161		619
Universal Display * (A)		8,100		190
Valueclick * (A)		79,578		1,041
Vasco Data Security International *		29,449		191
Veeco Instruments * (A)		56,168		1,959
VeriFone Holdings * (A)		31,619		982

Description	Shares		Market Value ($ Thousands)
VistaPrint * (A)		111,180	$	4,297
Vocus *		66,436		1,228
Volterra Semiconductor * (A)		49,861		1,073
Wave Systems, Cl A * (A)		6,300		14
Websense * (A)		4,910		87
Wright Express * (A)		9,000		321
Xyratex * (A)		2,100		31
Zoran *		78,168		596
				107,831
Materials — 3.6%
AK Steel Holding		7,600		105
Allied Nevada Gold * (A)		13,400		355
Carpenter Technology		24,500		826
Clearwater Paper *		6,700		510
Ferro *		23,900		308
Glatfelter		4,400		53
Globe Specialty Metals		10,900		153
Golden Star Resources *		48,800		241
H.B. Fuller		16,257		323
Haynes International		24,756		864
Horsehead Holding *		95,400		942
Innophos Holdings		8,987		298
Koppers Holdings		21,398		575
Minerals Technologies		900		53
Myers Industries		8,624		74
Nalco Holding		29,885		753
Neenah Paper		6,627		101
NewMarket		14,028		1,595
Olin		28,438		573
Omnova Solutions *		12,700		91
PolyOne *		77,345		935
Rock-Tenn, Cl A		8,038		400
Rockwood Holdings *		3,100		98
Schulman A		9,503		192
Solutia *		24,100		386
Spartech *		5,900		48
Stepan		1,323		78
Stillwater Mining * (A)		1,257		21
Wausau Paper *		17,801		148
Worthington Industries (A)		31,970		481
WR Grace *		75,431		2,108
				13,688
Telecommunication Services — 1.2%
Alaska Communications Systems Group (A)		53,500		543
Atlantic Telegraph-Network		4,317		213
Cincinnati Bell *		90,000		240
Cogent Communications Group *		18,095		171
Consolidated Communications Holdings		3,600		67
Frontier Communications		55,900		457
Global Crossing * (A)		21,885		282
Neutral Tandem *		32,513		388
NTELOS Holdings		11,203		190
SBA Communications, Cl A * (A)		29,716		1,197
Shenandoah Telecommunications		4,300		78
tw telecom, Cl A *		21,200		394
USA Mobility		23,500		377
Vonage Holdings *		51,400		131
				4,728

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Utilities — 0.3%
Alliant Energy		1,200	$	44
ITC Holdings		11,982		746
MGE Energy		2,306		91
NorthWestern		16,647		474
				1,355
Total Common Stock (Cost $313,131) ($ Thousands)				377,776
EXCHANGE TRADED FUND — 0.1%
SPDR S&P Midcap 400 ETF Trust		3,358		489
Total Exchange Traded Fund (Cost $472) ($ Thousands)				489
	Number of Warrants
WARRANTS — 0.0%
Rentech Expires 04/25/12 * (B) (C)		19,400		—
Titanium Asset Management Expires 06/21/11 * (B) (C)		147,800		—
Total Warrants (Cost $—) ($Thousands)				—
AFFILIATED PARTNERSHIP — 26.2%
SEI Liquidity Fund, L.P., 0.230% ** †† (D)		103,678,869		100,628
Total Affiliated Partnership (Cost $103,679) ($ Thousands)				100,628
CASH EQUIVALENT — 2.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150%** ††		9,691,169		9,691
Total Cash Equivalent (Cost $9,691) ($ Thousands)				9,691
U.S. TREASURY OBLIGATION (E) (F) — 0.2%
U.S. Treasury Bills
0.197%, 12/16/10	$	803		803
Total U.S. Treasury Obligation (Cost $803) ($ Thousands)				803
Total Investments — 127.2% (Cost $427,776) ($ Thousands)			$	489,387

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		74		Dec-2010	$	290

For the period ended September 30, 2010, the total amount of all open futures contracts as presented in the table above, are representative of the volume of activity for the derivative type during the period.

Percentages are based on Net Assets of $384,613 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

‡ Narrow Industries are utilized for compliance purposes, whereas broad sectors are utilized for reporting.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $100,287 ($ Thousands).

(B) Securities considered illiquid and restricted. The total market value of such securities as of September 30, 2010 was $545 ($ Thousands) and represented 0.14% of Net Assets.

(C) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total market value of such securities as of September 30, 2010 was $545 ($ Thousands) and represented 0.14% of Net Assets.

(D) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $100,628

   ($ Thousands).

(E) The rate reported is the effective yield at the time of purchase.

(F) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

PIPE — Private Investment in Public Entity

SPDR — Standard & Poor’s Depositary Receipts

Amounts designated as “—” are $0 or have been rounded to $0.

7 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Small Cap Growth Fund

September 30, 2010

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	377,231	$	142	$	403	$	377,776
Exchange Traded Fund		489		—		—		489
Warrants		—		—		—		—
Affiliated Partnership		—		100,628		—		100,628
Cash Equivalent		9,691		—		—		9,691
U.S. Treasury Obligation		—		803		—		803
Total Investments in Securities	$	387,411	$	101,573	$	403	$	489,387

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	290	$	—	$	—	$	290

* Futures contracts are valued at the unrealized appreciation on the instrument.

The following is reconciliation on the investments in which significant unobservable inputs (Level 3) were used in determining value ($ Thousands):

	Common Stock
Beginning balance as of October 1, 2009	$	571
Accrued discounts/premiums		—
Realized gain/(loss)		—
Change in unrealized appreciation/(depreciation)		(156	)
Net purchases/sales		—
Net transfer in and/or out of Level 3		(12	)
Ending balance as of September 30, 2010	$	403
Changes in unrealized gains (losses) included in earnings related to securities still held at reporting date	$	(156	)

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

8 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 96.7%
Consumer Discretionary — 17.1%
Aaron Rents (A)		16,077	$	297
Abercrombie & Fitch, Cl A (A)		5,904		232
Aeropostale *		18,450		429
AFC Enterprises *		11,400		141
American Axle & Manufacturing Holdings * (A)		3,600		32
American Eagle Outfitters		62,219		931
American Greetings, Cl A (A)		20,300		377
Amerigon * (A)		3,300		34
Ameristar Casinos (A)		1,300		23
AnnTaylor Stores * (A)		26,075		528
Apollo Group, Cl A *		6,500		334
Arbitron		800		22
Ascent Media, Cl A *		1,500		40
Autoliv		11,943		780
Autonation * (A)		1,400		33
Bally Technologies *		3,100		108
Belo, Cl A * (A)		28,274		175
Big Lots * (A)		10,200		339
Biglari Holdings *		90		30
BJ’s Restaurants * (A)		1,500		42
BorgWarner * (A)		10,787		568
Boyd Gaming * (A)		3,600		26
Bridgepoint Education * (A)		58,700		908
Brinker International		1,700		32
Brown Shoe		2,700		31
Brunswick (A)		33,750		514
Buckle (A)		2,400		64
Build-A-Bear Workshop * (A)		2,700		16
Cabela’s * (A)		17,200		326
Cablevision Systems, Cl A		31,600		828
Callaway Golf (A)		27,675		194
Capella Education * (A)		700		54
Career Education * (A)		18,800		404
Carmax * (A)		3,100		86
Carter’s * (A)		21,600		569
Cato, Cl A (A)		23,535		630
CBS, Cl B		12,700		201
Central European Media Enterprises, Cl A * (A)		700		18
Cheesecake Factory * (A)		20,100		532
Chico’s FAS (A)		1,900		20
Childrens Place Retail Stores * (A)		10,030		489
Chipotle Mexican Grill, Cl A * (A)		1,100		189
Christopher & Banks (A)		16,569		131
CKX *		9,200		45
Coinstar * (A)		15,300		658
Columbia Sportswear (A)		4,200		245
Cooper Tire & Rubber (A)		40,675		798
Corinthian Colleges * (A)		3,800		27
Cracker Barrel Old Country Store (A)		12,358		627
CROCS *		3,500		45
Darden Restaurants		9,361		400
Deckers Outdoor * (A)		900		45
Dick’s Sporting Goods * (A)		36,750		1,030
Dillard’s, Cl A (A)		17,000		402
DineEquity * (A)		800		36
Dollar Tree * (A)		2,700		132
Domino’s Pizza *		10,725		142

Description	Shares		Market Value ($ Thousands)
Domino’s Pizza UK & IRL		60,045	$	444
DR Horton (A)		10,000		111
DreamWorks Animation SKG, Cl A *		700		22
Eastman Kodak * (A)		6,700		28
Ethan Allen Interiors (A)		13,569		237
Expedia		18,800		530
Express * (A)		16,600		252
Foot Locker		27,200		395
Fortune Brands		8,848		435
Fossil *		4,200		226
Fuel Systems Solutions * (A)		700		27
GameStop, Cl A * (A)		17,800		351
Gannett		14,400		176
Gaylord Entertainment * (A)		21,900		668
Genesco *		8,000		239
Gentex (A)		21,200		414
Goodyear Tire & Rubber *		9,000		97
Grand Canyon Education *		24,000		526
Group 1 Automotive * (A)		1,200		36
Guess?		9,200		374
Hanesbrands *		43,910		1,135
Harley-Davidson		20,651		587
Harman International Industries *		8,300		277
Harte-Hanks		1,800		21
Helen of Troy *		2,800		71
hhgregg * (A)		12,314		305
Hillenbrand		10,900		234
Home Inns & Hotels Management ADR * (A)1		6,210		307
HOT Topic (A)		6,900		41
Hyatt Hotels, Cl A *		15,800		591
Iconix Brand Group * (A)		7,800		136
Insight Enterprises *		23,400		366
International Game Technology		24,922		360
International Speedway, Cl A		7,231		176
Interpublic Group * (A)		128,286		1,287
Isle of Capri Casinos *		3,300		24
ITT Educational Services * (A)		700		49
J Crew Group * (A)		500		17
Jakks Pacific * (A)		12,500		220
Jarden		30,520		950
John Wiley & Sons, Cl A		1,400		57
Jones Apparel Group		24,522		482
Journal Communications, Cl A *		39,400		178
K12 * (A)		1,000		29
KB Home (A)		5,300		60
Kenneth Cole Productions, Cl A *		1,600		27
Lamar Advertising, Cl A * (A)		1,300		41
Las Vegas Sands * (A)		10,200		356
Leggett & Platt		30,400		692
Lennar, Cl A		12,200		188
Life Time Fitness * (A)		800		32
Lin TV, Cl A *		1,800		8
Lions Gate Entertainment * (A)		6,300		46
Live Nation * (A)		63,125		624
LKQ *		44,700		930
Marriott International, Cl A		7,500		269
MDC Holdings (A)		400		12

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Men’s Wearhouse (A)		6,879	$	164
Meredith		6,700		223
Meritage Homes *		1,800		35
Modine Manufacturing *		2,100		27
Morningstar * (A)		300		13
National CineMedia		57,963		1,038
National Presto Industries		100		11
Navitas		65,483		269
NetFlix * (A)		4,800		779
New York Times, Cl A * (A)		12,100		94
Newell Rubbermaid		12,800		228
Nordstrom		8,177		304
Nutri/System (A)		4,000		77
NVR *		100		65
O’Reilly Automotive * (A)		500		27
Orient-Express Hotels, Cl A *		5,400		60
Panera Bread, Cl A *		700		62
Penn National Gaming *		28,670		849
Penske Auto Group *		4,547		60
PEP Boys-Manny Moe & Jack (A)		3,200		34
PetSmart		22,603		791
PF Chang’s China Bistro (A)		700		32
Phillips-Van Heusen		17,880		1,076
Pinnacle Entertainment *		1,800		20
Polaris Industries (A)		13,535		881
Polo Ralph Lauren		900		81
Pre-Paid Legal Services * (A)		6,200		387
Pulte Homes *		2,494		22
Quiksilver *		5,100		20
RadioShack		17,900		382
RC2 * (A)		27,290		572
Red Robin Gourmet Burgers * (A)		12,400		243
Regal Entertainment Group, Cl A		19,232		252
Regis (A)		12,398		237
Rent-A-Center (A)		3,799		85
Ross Stores		1,400		76
Royal Caribbean Cruises * (A)		2,300		73
Ruby Tuesday * (A)		37,800		449
Ryland Group		2,100		38
Sauer-Danfoss *		1,700		36
Scholastic (A)		6,900		192
Scientific Games, Cl A *		137,253		1,331
Scripps Networks Interactive, Cl A		4,290		204
Sealy * (A)		5,500		13
Service International (A)		20,300		175
Shutterfly *		1,700		44
Signet Jewelers *		3,000		95
Sirius XM Radio * (A)		57,500		69
Sotheby’s (A)		5,600		206
Speedway Motorsports		800		13
Stage Stores (A)		27,664		360
Stamps.com *		906		12
Standard-Pacific * (A)		4,600		18
Starwood Hotels & Resorts Worldwide		4,700		247
Steiner Leisure * (A)		6,920		264
Stewart Enterprises, Cl A (A)		2,900		16
Strayer Education (A)		1,000		175
Stroer Out-of-Home Media *		5,124		152
Tempur-Pedic International * (A)		32,040		993
Tenneco * (A)		11,900		345

Description	Shares		Market Value ($ Thousands)
Thor Industries		700	$	24
Timberland, Cl A *		1,400		28
Tupperware Brands		6,861		314
Ulta Salon Cosmetics & Fragrance * (A)		1,800		53
Under Armour, Cl A * (A)		600		27
WABCO Holdings *		1,500		63
Warnaco Group * (A)		3,010		154
Warner Music Group *		5,700		26
Wendy’s, Cl A		31,800		144
Whirlpool		7,300		591
Williams-Sonoma		6,664		211
WMS Industries * (A)		21,536		820
Wolverine World Wide		700		20
World Wrestling Entertainment, Cl A (A)		1,400		20
Wyndham Worldwide		16,720		459
				51,212
Consumer Staples — 3.8%
Andersons		1,700		64
Avon Products		7,952		255
BJ’s Wholesale Club *		3,589		149
Boston Beer, Cl A *		800		54
Cal-Maine Foods (A)		8,700		252
Casey’s General Stores (A)		5,400		225
Central European Distribution *		15,960		356
Central Garden and Pet *		13,800		142
Central Garden and Pet, Cl A * (A)		21,000		218
Chiquita Brands International * (A)		14,870		197
Church & Dwight		1,600		104
Constellation Brands, Cl A *		21,816		386
Corn Products International		7,292		273
Darling International *		2,400		20
Dean Foods *		47,776		488
Del Monte Foods		87,443		1,146
Diamond Foods (A)		1,500		61
Dole Food * (A)		12,981		119
Flowers Foods		3,900		97
Fresh Del Monte Produce * (A)		10,000		217
Green Mountain Coffee Roasters * (A)		37,247		1,162
Hansen Natural *		3,225		150
Herbalife		16,030		968
J&J Snack Foods		1,300		55
Kroger		16,191		351
Lancaster Colony		1,000		48
Lance		800		17
Lorillard		757		61
McCormick		8,533		359
Mead Johnson Nutrition, Cl A		5,700		324
Molson Coors Brewing, Cl B		11,043		521
Nash Finch		2,860		122
Nu Skin Enterprises, Cl A		900		26
Pantry * (A)		12,629		304
Prestige Brands Holdings *		25,803		255
Ralcorp Holdings *		1,000		58
Reddy Ice Holdings *		5,700		13
Revlon, Cl A * (A)		1,400		18
Ruddick (A)		6,536		227
Sanderson Farms		1,500		65

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Sara Lee		1,800	$	24
Schiff Nutrition International (A)		2,200		18
Seneca Foods, Cl A *		6,519		171
Smithfield Foods * (A)		1,400		24
Spectrum Brands Holdings * (A)		1,100		30
SUPERVALU		34,400		397
Synutra International * (A)		1,500		17
Tootsie Roll Industries (A)		751		19
TreeHouse Foods * (A)		1,800		83
Universal (A)		5,800		232
USANA Health Sciences * (A)		400		16
Vector Group (A)		3,045		57
Village Super Market, Cl A		800		22
Weis Markets		6,300		247
Whole Foods Market *		2,000		74
				11,358
Energy — 5.3%
Atlas Energy *		2,791		80
ATP Oil & Gas * (A)		1,700		23
Atwood Oceanics *		8,300		253
Berry Petroleum, Cl A (A)		22,460		713
Bill Barrett * (A)		1,000		36
Brigham Exploration * (A)		27,300		512
Bristow Group *		700		25
Cabot Oil & Gas		1,000		30
CARBO Ceramics (A)		900		73
Carrizo Oil & Gas *		1,700		41
Cimarex Energy		400		26
Clean Energy Fuels * (A)		1,200		17
Complete Production Services * (A)		3,100		63
Contango Oil & Gas * (A)		500		25
CVR Energy *		2,700		22
Denbury Resources *		2,748		44
DHT Holdings (A)		1,200		5
Dresser-Rand Group *		7,240		267
Dril-Quip * (A)		11,730		728
Energy XXI Bermuda * (A)		6,859		158
Equities		11,111		401
EXCO Resources		1,800		27
Exterran Holdings * (A)		16,294		370
FMC Technologies *		1,800		123
Forest Oil *		1,900		56
Frontier Oil		17,599		236
Frontline (A)		9,959		283
Global Industries *		7,700		42
Golar LNG		4,000		50
Goodrich Petroleum * (A)		27,146		396
Helix Energy Solutions Group *		1,800		20
Helmerich & Payne		1,300		52
Hess		1,100		65
Hornbeck Offshore Services * (A)		17,800		347
Houston American Energy (A)		1,300		13
International Coal Group * (A)		11,600		62
Key Energy Services * (A)		38,354		365
Mariner Energy * (A)		1,700		41
McMoRan Exploration * (A)		5,900		102
Mitcham Industries *		3,000		22
Murphy Oil		6,785		420
Nabors Industries * (A)		23,866		431
National Oilwell Varco		1,800		80
Newfield Exploration *		7,153		411

Description	Shares		Market Value ($ Thousands)
Nordic American Tanker Shipping, Cl US (A)		23,501	$	629
Northern Oil And Gas * (A)		2,100		36
Oceaneering International *		7,680		414
Oil States International *		700		32
Overseas Shipholding Group (A)		26,220		900
Patterson-UTI Energy		10,400		178
Peabody Energy		1,500		73
PetroHawk Energy *		21,000		339
Pioneer Natural Resources (A)		5,981		389
Quicksilver Resources *		4,700		59
Range Resources		10,906		416
Rowan * (A)		10,600		322
SEACOR Holdings *		4,800		409
Ship Finance International (A)		10,429		203
SM Energy		1,000		37
Southwestern Energy *		1,000		33
Spectra Energy		19,871		448
Stone Energy * (A)		7,700		113
Sunoco		6,400		234
Superior Energy Services *		1,300		35
Swift Energy *		13,291		373
Teekay Shipping		10,000		267
Teekay Tankers, Cl A (A)		1,800		23
Tesoro		23,800		318
Tidewater (A)		12,316		552
Ultra Petroleum *		900		38
USEC * (A)		56,600		294
Venoco * (A)		1,300		26
Western Refining * (A)		16,400		86
Whiting Petroleum *		7,425		709
Willbros Group * (A)		1,500		14
World Fuel Services (A)		15,000		390
				15,945
Financials — 15.5%
Acadia Realty Trust †		2,100		40
Advance America Cash Advance Centers (A)		39,200		158
Affiliated Managers Group *		500		39
Alexander’s †		100		32
Alexandria Real Estate Equities † (A)		400		28
Allied World Assurance Holdings		10,700		606
Altisource Portfolio Solutions *		1,400		44
AMB Property †		2,100		56
American Campus Communities †		1,000		30
American Capital *		8,900		52
American Capital Agency † (A)		3,717		99
American Equity Investment Life Holding (A)		3,300		34
American Financial Group		19,300		590
American National Insurance		700		53
Ameriprise Financial		17,274		818
Anworth Mortgage Asset † (A)		44,400		317
Apartment Investment & Management, Cl A † (A)		1,800		38
Arch Capital Group *		300		25
Ares Capital		13,829		216
Argo Group International Holdings		600		21
Arthur J. Gallagher		7,100		187
Artio Global Investors, Cl A		3,000		46

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Aspen Insurance Holdings		11,100	$	336
Associated Banc-Corp (A)		18,500		244
Assured Guaranty (A)		43,884		751
Astoria Financial (A)		4,170		57
AvalonBay Communities †		700		73
Axis Capital Holdings		2,700		89
Banco Latinoamericano de Exportaciones, Cl E (A)		21,300		308
Bancorpsouth (A)		15,867		225
Bank Mutual		5,200		27
Bank of Hawaii		900		40
BGC Partners, Cl A (A)		40,700		243
BioMed Realty Trust † (A)		1,400		25
BlackRock		456		78
BlackRock Kelso Capital (A)		2,400		28
Boston Private Financial Holdings (A)		10,538		69
Boston Properties † (A)		4,912		408
Brandywine Realty Trust †		32,300		396
BRE Properties, Cl A †		1,000		41
Calamos Asset Management, Cl A		1,800		21
Camden Property Trust †		600		29
Capstead Mortgage † (A)		33,825		368
Cardinal Financial (A)		18,298		176
Cathay General Bancorp (A)		2,100		25
CB Richard Ellis Group, Cl A * (A)		25,900		473
CBL & Associates Properties † (A)		44,900		586
Central Pacific Financial * (A)		13,300		19
Century Bancorp, Cl A (A)		2,700		64
Chemical Financial		4,300		89
Chimera Investment †		43,300		171
Cincinnati Financial (A)		2,400		69
City Holding (A)		6,100		187
City National		800		42
CNA Financial *		22,700		635
CNA Surety * (A)		6,600		118
Colonial Properties Trust † (A)		4,500		73
Columbia Banking System		1,000		20
Comerica		13,781		512
Commerce Bancshares		1,455		55
CommonWealth REIT †		25,025		641
Community Bank System (A)		11,300		260
Cousins Properties † (A)		14,314		102
Cullen/Frost Bankers		2,500		135
CVB Financial (A)		41,136		309
DCT Industrial Trust † (A)		9,100		44
Delphi Financial Group, Cl A		4,300		107
Developers Diversified Realty † (A)		2,300		26
Digital Realty Trust † (A)		4,800		296
Dime Community Bancshares (A)		1,700		24
Dollar Financial * (A)		1,600		33
Doral Financial * (A)		23,400		39
Douglas Emmett †		1,400		25
Duke Realty †		1,700		20
DuPont Fabros Technology †		2,400		60
East West Bancorp		8,100		132
EastGroup Properties † (A)		2,100		78
Eaton Vance		8,579		249
Education Realty Trust † (A)		28,058		201
EMC Insurance Group (A)		2,820		60

Description	Shares		Market Value ($ Thousands)
Employers Holdings		26,803	$	423
Encore Capital Group *		11,100		200
Endurance Specialty Holdings		24,378		970
Enstar Group *		400		29
Entertainment Properties Trust † (A)		1,000		43
Equity One † (A)		22,347		377
Erie Indemnity, Cl A		2,000		112
Essex Property Trust † (A)		400		44
Evercore Partners, Cl A		700		20
Everest Re Group		4,400		380
FBL Financial Group, Cl A (A)		2,500		65
Federal Agricultural Mortgage, Cl C (A)		7,400		80
Federal Realty Investment Trust † (A)		500		41
Federated Investors, Cl B (A)		38,016		865
FelCor Lodging Trust * † (A)		6,100		28
Fifth Street Finance (A)		2,100		23
Fifth Third Bancorp		33,313		401
Financial Institutions (A)		1,100		19
First American Financial		2,100		31
First Bancorp * (A)		24,900		7
First Financial Bancorp (A)		19,244		321
First Financial Holdings		1,000		11
First Horizon National * (A)		25,835		295
First Niagara Financial Group		6,200		72
First Potomac Realty Trust †		17,700		265
FirstMerit (A)		20,061		367
Flagstar Bancorp * (A)		16,300		30
Flagstone Reinsurance Holdings		6,300		67
Flushing Financial		3,600		42
FNB (Pennsylvania) (A)		11,200		96
Franklin Street Properties † (A)		5,100		63
Fulton Financial		4,400		40
GAMCO Investors, Cl A		400		15
General Motors Financial *		2,970		73
Getty Realty † (A)		3,100		83
GFI Group		43,500		202
GLG Partners * (A)		10,100		45
Global Indemnity, Cl A *		540		9
Greenlight Capital Re *		1,000		25
Hancock Holding (A)		13,468		405
Hanover Insurance Group		12,300		578
Harleysville Group		600		20
Hatteras Financial † (A)		5,000		142
Health Care † (A)		4,755		225
Healthcare Realty Trust †		1,000		23
Hercules Technology Growth Capital		33,584		340
Hersha Hospitality Trust † (A)		4,600		24
Highwoods Properties † (A)		700		23
Home Properties †		400		21
Horace Mann Educators (A)		18,700		333
Hospitality Properties Trust †		15,700		351
Host Hotels & Resorts † (A)		28,207		408
Hudson City Bancorp		2,400		29
Huntington Bancshares		99,900		566
IBERIABANK (A)		4,658		233
Independent Bank (A)		800		18
Infinity Property & Casualty (A)		10,430		509
Inland Real Estate †		3,000		25

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Interactive Brokers Group, Cl A * (A)		800	$	14
Janus Capital Group		2,600		29
Jefferies Group (A)		2,700		61
Jones Lang LaSalle		1,004		87
KBW (A)		1,100		28
Kennedy-Wilson Holdings * (A)		1,700		18
Kilroy Realty † (A)		3,575		118
Kite Realty Group Trust †		3,700		16
Knight Capital Group, Cl A *		4,200		52
LaSalle Hotel Properties †		1,400		33
Lexington Realty Trust † (A)		62,267		446
Liberty Property Trust †		15,852		506
LTC Properties † (A)		7,100		181
M&T Bank (A)		1,358		111
Macerich † (A)		5,934		255
MarketAxess Holdings (A)		1,800		31
MBIA * (A)		5,600		56
Meadowbrook Insurance Group (A)		47,000		422
Medical Properties Trust † (A)		5,500		56
Mercury General		1,100		45
MF Global Holdings * (A)		5,200		37
MFA Financial † (A)		128,122		978
Mid-America Apartment Communities †		5,353		312
Montpelier Re Holdings (A)		15,200		263
MSCI, Cl A *		4,100		136
National Health Investors †		800		35
National Penn Bancshares		38,381		240
National Retail Properties † (A)		1,600		40
National Western Life Insurance, Cl A		200		28
Nationwide Health Properties †		14,000		541
NBT Bancorp (A)		800		18
New York Community Bancorp (A)		29,449		479
NewAlliance Bancshares		11,400		144
Northfield Bancorp (A)		800		9
NorthStar Realty Finance † (A)		820		3
NYSE Euronext		1,975		56
Ocwen Financial * (A)		4,200		43
Old National Bancorp (A)		4,100		43
Omega Healthcare Investors † (A)		5,100		114
One Liberty Properties †		140		2
OneBeacon Insurance Group, Cl A (A)		2,700		39
optionsXpress Holdings *		2,100		32
Oriental Financial Group (A)		13,000		173
PacWest Bancorp (A)		14,860		283
Park National (A)		300		19
Parkway Properties † (A)		20,600		305
PartnerRe		9,726		780
Pennsylvania Real Estate Investment Trust † (A)		14,700		174
People’s United Financial		49,902		653
PHH *		11,238		237
Piedmont Office Realty Trust, Cl A †		1,000		19
Piper Jaffray * (A)		500		15
Platinum Underwriters Holdings (A)		9,625		419

Description	Shares		Market Value ($ Thousands)
Plum Creek Timber † (A)		1,600	$	56
Popular *		32,900		95
Portfolio Recovery Associates * (A)		400		26
Post Properties † (A)		1,200		34
PrivateBancorp, Cl A		8,400		96
ProAssurance * (A)		16,781		966
Prospect Capital (A)		2,612		25
Protective Life		10,756		234
Provident Financial Services		1,900		23
PS Business Parks †		1,400		79
Pzena Investment Management, Cl A		5,400		37
RAIT Financial Trust * † (A)		42,000		69
Ramco-Gershenson Properties † (A)		2,300		25
Raymond James Financial (A)		15,200		385
Redwood Trust † (A)		22,892		331
Regency Centers † (A)		5,500		217
Regions Financial		37,600		273
Reinsurance Group of America, Cl A		15,235		736
RenaissanceRe Holdings		800		48
Resource Capital †		2,600		17
Roma Financial		900		9
S&T Bancorp (A)		9,800		171
Selective Insurance Group (A)		10,900		178
Senior Housing Properties Trust †		6,600		155
Signature Bank NY * (A)		6,837		266
SL Green Realty † (A)		2,100		133
Solar Capital		2,200		47
Sovran Self Storage † (A)		4,500		171
StanCorp Financial Group		11,800		448
Sterling Bancshares		7,100		38
Stifel Financial * (A)		8,105		375
Stratus Properties *		1,900		16
Sun Communities † (A)		1,400		43
SVB Financial Group *		600		25
SWS Group		48,300		346
Synovus Financial (A)		295,757		728
Tanger Factory Outlet Centers † (A)		1,000		47
Taubman Centers † (A)		7,500		335
TCF Financial (A)		2,200		36
TD Ameritrade Holding *		20,329		328
Teton Advisors, Cl A *		6		—
TFS Financial		12,200		112
Tower Group (A)		4,800		112
TradeStation Group *		1,800		12
Transatlantic Holdings		600		31
Trustco Bank NY (A)		23,100		128
Trustmark (A)		900		20
UDR †		1,400		30
Umpqua Holdings (A)		10,316		117
United Bankshares (A)		4,300		107
United Community Banks * (A)		10,775		24
United Fire & Casualty (A)		4,000		85
Unitrin		18,800		459
Unum Group		40,763		903
U-Store-It Trust †		3,500		29
Validus Holdings		8,900		235
Valley National Bancorp (A)		2,205		28

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Waddell & Reed Financial, Cl A		900	$	25
Walter Investment Management † (A)		3,557		62
Washington Federal (A)		14,200		217
Washington Real Estate Investment Trust † (A)		900		29
Webster Financial (A)		7,700		135
Weingarten Realty Investors † (A)		1,600		35
WesBanco (A)		12,800		209
Westamerica Bancorporation (A)		1,700		93
Westfield Financial (A)		2,625		20
Whitney Holding (A)		43,748		357
Willis Group Holdings		13,349		411
Wilmington Trust (A)		4,200		38
Wintrust Financial (A)		600		19
World Acceptance * (A)		1,300		57
WR Berkley		5,400		146
WSFS Financial		400		15
XL Group, Cl A		3,800		82
Zions Bancorporation (A)		54,948		1,174
				46,549
Health Care — 10.8%
Abaxis * (A)		1,600		37
Abraxis BioScience *		500		39
Accelrys * (A)		3,357		23
Accretive Health * (A)		7,530		82
Accuray *		1,900		12
Acorda Therapeutics * (A)		17,800		588
Affymetrix * (A)		12,000		55
Air Methods *		600		25
Albany Molecular Research * (A)		3,200		20
Alere * (A)		2,434		75
Alexion Pharmaceuticals *		6,000		386
Align Technology *		31,400		615
Alkermes * (A)		24,860		364
Allergan		1,800		120
Allos Therapeutics *		4,400		21
Allscripts Healthcare Solutions *		42,640		788
AMAG Pharmaceuticals * (A)		6,170		106
Amedisys * (A)		1,400		33
American Medical Systems Holdings * (A)		22,420		439
AMERIGROUP * (A)		5,925		252
AmerisourceBergen		22,316		684
Amsurg * (A)		17,498		306
Amylin Pharmaceuticals * (A)		6,900		144
Analogic (A)		1,074		48
ATHENAHEALTH INC * (A)		1,600		53
Auxilium Pharmaceuticals * (A)		24,460		606
Bio-Reference Labs *		1,000		21
Brookdale Senior Living *		24,400		398
Bruker BioSciences *		3,800		53
Capital Senior Living *		3,600		19
Catalyst Health Solutions *		600		21
Celgene *		622		36
Celldex Therapeutics * (A)		2,400		10
Cephalon * (A)		6,700		418
Cerner *		300		25
Charles River Laboratories International * (A)		5,750		191
Chemed		4,364		249
Cooper (A)		13,590		628

Description	Shares		Market Value ($ Thousands)
Corvel *		293	$	12
Covance *		6,575		308
Coventry Health Care *		18,200		392
Cubist Pharmaceuticals * (A)		8,300		194
Cyberonics * (A)		9,590		256
Dendreon * (A)		4,100		169
Dentsply International		14,800		473
Dionex *		500		43
Edwards Lifesciences *		2,400		161
Emdeon, Cl A *		4,400		54
Emeritus * (A)		1,400		24
Endo Pharmaceuticals Holdings * (A)		11,600		385
Enzon Pharmaceuticals * (A)		2,600		29
eResearchTechnology * (A)		2,348		18
Exelixis *		5,200		20
Express Scripts *		1,400		68
Forest Laboratories *		13,900		430
Gen-Probe *		11,200		543
Gentiva Health Services * (A)		700		15
Geron * (A)		8,900		49
Greatbatch *		2,000		46
Halozyme Therapeutics * (A)		2,700		21
Health Management Associates, Cl A *		12,400		95
Health Net *		1,800		49
Healthsouth * (A)		31,151		598
Healthspring *		1,200		31
Henry Schein *		7,707		451
Hill-Rom Holdings (A)		6,900		248
HMS Holdings *		500		29
Hologic *		25,542		409
Human Genome Sciences * (A)		4,100		122
Humana *		8,300		417
ICON ADR *		16,510		357
Idexx Laboratories * (A)		6,200		383
Illumina * (A)		2,300		113
Immucor *		1,950		39
Impax Laboratories *		13,900		275
Incyte * (A)		29,800		476
Intuitive Surgical *		550		156
Isis Pharmaceuticals * (A)		3,300		28
Kinetic Concepts * (A)		9,300		340
King Pharmaceuticals *		20,000		199
Landauer		600		38
LHC Group * (A)		500		12
Life Technologies *		1,637		76
LifePoint Hospitals *		19,800		694
Lincare Holdings (A)		20,910		525
Magellan Health Services *		1,400		66
Martek Biosciences * (A)		800		18
Mednax *		3,743		199
Meridian Bioscience		8,100		177
Merit Medical Systems *		2,500		40
Mettler Toledo International *		400		50
Mylan Laboratories * (A)		32,735		616
Myriad Genetics *		2,200		36
Myriad Pharmaceuticals *		550		2
Nektar Therapeutics * (A)		9,000		133
Neogen * (A)		900		30
NuVasive * (A)		16,829		591
Obagi Medical Products * (A)		1,600		17

6 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Omnicare (A)		15,000	$	358
Omnicell *		1,300		17
Onyx Pharmaceuticals * (A)		37,250		983
Orthofix International * (A)		600		19
Owens & Minor		24,542		698
Par Pharmaceutical * (A)		2,570		75
Parexel International * (A)		34,950		808
Patterson (A)		7,500		215
PDL BioPharma (A)		64,800		341
PerkinElmer		19,900		461
Perrigo (A)		11,300		726
Pharmaceutical Product Development		38,170		946
Pharmasset * (A)		7,600		224
PharMerica *		34,700		331
Providence Service *		1,900		31
PSS World Medical * (A)		1,400		30
Psychiatric Solutions *		900		30
Quest Diagnostics		6,803		343
Regeneron Pharmaceuticals * (A)		17,300		474
RehabCare Group *		1,500		30
ResMed * (A)		5,662		186
Rigel Pharmaceuticals * (A)		25,600		215
Salix Pharmaceuticals * (A)		10,630		422
Seattle Genetics * (A)		19,770		307
Sirona Dental Systems *		10,119		365
STERIS (A)		1,300		43
SXC Health Solutions *		15,880		579
Symmetry Medical *		1,500		14
Team Health Holdings * (A)		18,865		244
Techne (A)		4,600		284
Tenet Healthcare *		14,100		67
Theravance * (A)		1,400		28
Thermo Fisher Scientific *		1,600		77
Thoratec *		1,500		56
TomoTherapy * (A)		17,200		61
Universal Health Services, Cl B		1,000		39
US Physical Therapy *		900		15
Valeant Pharmaceuticals International * (A)		37,748		946
Vertex Pharmaceuticals * (A)		8,000		277
Viropharma *		5,800		86
Volcano * (A)		27,570		716
Waters *		1,725		122
Watson Pharmaceuticals *		5,300		224
WellCare Health Plans *		800		23
Zoll Medical * (A)		1,800		58
				32,429
Industrials — 15.0%
AAON (A)		1,500		35
AAR * (A)		1,100		20
ACCO Brands * (A)		24,700		142
Acuity Brands (A)		500		22
Advisory Board * (A)		15,100		667
Aecom Technology *		22,600		548
AerCap Holdings *		17,550		208
Aerovironment * (A)		800		18
AGCO *		1,400		55
Aircastle		16,413		139
Airtran Holdings * (A)		2,900		21
Albany International, Cl A		1,900		36
Alexander & Baldwin		2,939		102

Description	Shares		Market Value ($ Thousands)
Allegiant Travel, Cl A (A)		8,320	$	352
Alliant Techsystems *		588		44
American Commercial Lines * (A)		725		20
American Superconductor * (A)		2,200		69
Ametek		750		36
Ampco-Pittsburgh (A)		8,000		199
AMR *		4,000		25
AO Smith		8,400		486
Apogee Enterprises (A)		16,300		149
Arkansas Best		900		22
ArvinMeritor * (A)		68,680		1,067
Atlas Air Worldwide Holdings * (A)		14,300		719
Avery Dennison		11,542		428
Baldor Electric		900		36
Barnes Group		1,100		19
BE Aerospace *		11,507		349
Beacon Roofing Supply *		32,890		479
Belden (A)		14,472		382
Brady, Cl A (A)		9,285		271
Briggs & Stratton (A)		21,020		400
Brink’s		3,100		71
Bucyrus International, Cl A (A)		11,800		818
C.H. Robinson Worldwide		4,644		325
Carlisle		600		18
Cintas		18,121		499
Clarcor		1,000		39
Clean Harbors *		10,159		688
CNH Global (A)		2,460		90
Colfax * (A)		7,500		111
Columbus McKinnon *		3,249		54
Con-way		600		19
Copa Holdings, Cl A		13,060		704
Copart *		600		20
Corporate Executive Board		25,700		811
Corrections Corp of America *		52,330		1,292
CoStar Group * (A)		1,100		54
Courier (A)		6,189		88
Crane		9,800		372
Cummins		2,100		190
Delta Air Lines *		4,925		58
Deluxe		18,000		344
Dollar Thrifty Automotive Group *		3,000		150
Donaldson		300		14
Dover		8,671		453
EMCOR Group * (A)		18,114		445
EnergySolutions (A)		6,800		34
EnerNOC * (A)		1,300		41
Ennis (A)		3,600		64
EnPro Industries * (A)		11,900		372
Esterline Technologies *		6,510		372
Excel Maritime Carriers * (A)		8,300		47
Fastenal (A)		6,548		348
Flowserve		3,917		429
Fluor		8,604		426
Forward Air (A)		1,000		26
Foster Wheeler *		7,300		178
Franklin Electric		500		17
G&K Services		10,126		232
Gardner Denver		20,429		1,097
GATX		2,900		85
Genco Shipping & Trading * (A)		2,800		45
GenCorp * (A)		9,100		45

7 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
GeoEye *		700	$	28
Goodrich		1,600		118
Gorman-Rupp (A)		1,250		34
Graco		600		19
GrafTech International *		2,200		34
Granite Construction (A)		1,500		34
Griffon *		1,600		20
Harsco		3,200		79
Heartland Express (A)		2,100		31
Heidrick & Struggles International (A)		700		14
Herman Miller		1,500		30
Hertz Global Holdings * (A)		34,800		368
Hexcel *		2,200		39
HNI (A)		1,400		40
Hubbell, Cl B		5,700		289
Huron Consulting Group *		400		9
IDEX		6,500		231
IHS, Cl A *		12,300		836
Insituform Technologies, Cl A *		1,900		46
Interface, Cl A (A)		15,618		222
Interline Brands *		1,300		23
International Shipholding (A)		5,600		158
JB Hunt Transport Services		24,840		862
John Bean Technologies		1,377		22
Joy Global		1,800		127
Kadant * (A)		11,654		220
Kaman		2,707		71
Kansas City Southern *		3,100		116
Kaydon (A)		10,092		349
KBR		2,100		52
Kelly Services, Cl A *		1,200		14
Kennametal		600		18
Kirby *		1,100		44
Knoll (A)		24,030		373
Landstar System		600		23
Layne Christensen *		1,000		26
Lennox International		2,400		100
Lincoln Electric Holdings		3,205		185
Lindsay (A)		6,200		269
Localiza Rent a Car		45,290		754
Manitowoc (A)		5,200		63
Manpower		14,900		778
MasTec *		5,300		55
Middleby * (A)		500		32
Mine Safety Appliances (A)		6,500		176
Moog, Cl A *		7,200		256
Mueller Industries		11,400		302
NACCO Industries, Cl A		400		35
Navistar International * (A)		17,600		768
NCI Building Systems * (A)		3,160		30
Nordson		1,400		103
Old Dominion Freight Line *		23,170		589
Orbital Sciences *		4,400		67
Oshkosh Truck *		10,300		283
Owens Corning *		5,200		133
PACCAR		8,643		416
Pall		3,500		146
Park-Ohio Holdings * (A)		2,900		38
Pentair		800		27
Pitney Bowes (A)		18,700		400
Quanex Building Products (A)		1,800		31

Description	Shares		Market Value ($ Thousands)
Quanta Services *		3,656	$	70
Regal-Beloit		17,760		1,042
Republic Airways Holdings *		2,558		21
Resources Connection		32,095		442
Ritchie Bros. Auctioneers (A)		11,300		235
Robert Half International		1,400		36
Roper Industries		400		26
RR Donnelley & Sons (A)		15,000		254
RSC Holdings * (A)		1,700		13
Rush Enterprises, Cl A *		37,660		578
Ryder System		12,600		539
School Specialty * (A)		18,052		235
Shaw Group *		500		17
Skywest (A)		11,800		165
Spirit Aerosystems Holdings, Cl A *		20,179		402
Standard Register (A)		3,396		10
Steelcase, Cl A (A)		4,600		38
Stericycle * (A)		1,000		69
SYKES Enterprises * (A)		76,617		1,040
TAL International Group (A)		8,900		216
Teledyne Technologies *		11,015		439
Teleflex (A)		13,627		773
Terex *		13,472		309
Tetra Tech *		11,948		251
Thomas & Betts *		8,700		357
Timken		23,300		894
Towers Watson, Cl A		17,815		876
Trex * (A)		21,491		410
Triumph Group (A)		7,038		525
TrueBlue *		1,500		20
Tutor Perini *		6,800		137
Tyco International		3,723		137
UAL * (A)		22,900		541
United Rentals * (A)		30,190		448
United Stationers *		5,000		268
Universal Forest Products		3,000		88
URS *		7,600		289
US Airways Group * (A)		11,425		106
USG * (A)		1,100		15
UTI Worldwide		18,200		293
Valmont Industries		300		22
Vicor (A)		2,300		34
Vitran *		30,030		329
Wabash National * (A)		37,270		301
Wabtec (A)		1,800		86
Watsco (A)		6,100		340
Watts Water Technologies, Cl A (A)		6,670		227
WESCO International * (A)		21,760		855
				45,023
Information Technology — 17.1%
Acme Packet *		9,788		371
Adobe Systems *		11,858		310
Advanced Analogic Technologies * (A)		3,400		12
Advanced Energy Industries *		1,400		18
Advanced Micro Devices *		7,300		52
Advent Software * (A)		500		26
Agilysys *		2,800		18
Akamai Technologies *		2,300		115
Alliance Data Systems * (A)		19,300		1,260

8 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Amkor Technology * (A)		15,500	$	102
Analog Devices (A)		13,844		434
Anixter International *		500		27
Ansys *		10,900		461
Aon Hewitt, Cl A *		3,634		183
Applied Micro Circuits *		50,860		509
Ariba *		2,700		51
Arris Group * (A)		7,200		70
Arrow Electronics *		1,900		51
Aruba Networks * (A)		18,070		386
Atheros Communications *		13,350		352
ATMI *		800		12
Autodesk *		1,000		32
Avnet *		10,000		270
AVX		4,300		59
Benchmark Electronics *		19,500		320
BigBand Networks *		7,100		20
Black Box		5,800		186
Blackbaud		2,048		49
Blackboard * (A)		13,800		497
Blue Coat Systems *		16,300		392
BMC Software *		1,700		69
Brightpoint *		41,083		287
Broadridge Financial Solutions		1,700		39
Brocade Communications Systems *		140,215		819
CACI International, Cl A * (A)		6,140		278
Cadence Design Systems * (A)		5,600		43
Cavium Networks *		11,916		343
Checkpoint Systems *		7,277		148
Ciber *		18,177		55
Ciena * (A)		1,900		30
Cognex (A)		5,900		158
Cognizant Technology Solutions, Cl A *		1,800		116
Cogo Group *		3,500		22
Coherent * (A)		9,163		367
CommScope *		10,400		247
Computer Sciences		9,800		451
Comtech Telecommunications		8,381		229
Comverge * (A)		2,600		20
Concur Technologies * (A)		9,160		453
Convergys * (A)		27,500		287
CoreLogic		2,100		40
Cree *		3,249		176
CSG Systems International *		18,934		345
CTS (A)		33,788		325
Cymer *		2,301		85
Cypress Semiconductor * (A)		11,200		141
Daktronics		4,600		45
DealerTrack Holdings *		1,100		19
Deltek * (A)		4,647		37
DG FastChannel * (A)		800		17
Diebold		25,174		783
Digital River * (A)		12,149		414
Diodes *		1,800		31
Dolby Laboratories, Cl A *		8,200		466
DST Systems		3,600		161
Earthlink (A)		12,700		115
EchoStar, Cl A *		2,900		55
Electronics for Imaging *		6,990		85
Emulex * (A)		21,338		223

Description	Shares		Market Value ($ Thousands)
Equinix * (A)		11,810	$	1,209
Euronet Worldwide * (A)		18,500		333
F5 Networks *		3,200		332
Factset Research Systems		300		24
Fair Isaac (A)		1,100		27
Fairchild Semiconductor International *		68,488		644
Fidelity National Information Services		1,480		40
Finisar * (A)		40,138		754
Flir Systems *		7,360		189
Formfactor *		3,300		28
Forrester Research *		900		30
Gartner * (A)		24,540		722
Genpact *		1,200		21
Global Payments		800		34
GSI Commerce * (A)		88,240		2,179
Harris		14,100		625
Heartland Payment Systems (A)		16,960		258
Hittite Microwave *		1,300		62
Hollysys Automation Technologies * (A)		9,840		110
Hughes Communications *		1,600		44
IAC *		2,479		65
Imation *		2,100		19
Informatica * (A)		24,450		939
Ingram Micro, Cl A *		1,400		24
Integrated Device Technology *		11,300		66
InterDigital *		1,000		30
Intermec *		26,646		327
International Rectifier *		1,600		34
Intersil, Cl A		8,600		100
Itron *		899		55
Ixia *		22,860		283
Jabil Circuit		54,460		785
Jack Henry & Associates		1,000		26
JDS Uniphase *		2,700		33
L-1 Identity Solutions, Cl 1 *		2,100		25
Lawson Software * (A)		32,720		277
Lexmark International, Cl A *		24,300		1,084
Limelight Networks *		3,000		18
Linear Technology (A)		3,700		114
Littelfuse *		6,195		271
LoopNet * (A)		1,700		20
Loral Space & Communications *		800		42
LSI Logic *		5,300		24
Mantech International, Cl A *		900		36
Measurement Specialties * (A)		2,900		53
Mentor Graphics *		2,400		25
Methode Electronics		17,356		157
Micrel		11,400		112
Micros Systems *		11,700		495
Microsemi * (A)		67,972		1,166
Molex (A)		29,420		616
Monolithic Power Systems *		5,228		85
Monster Worldwide *		1,600		21
Move * (A)		19,207		43
MTS Systems		2,119		66
Multi-Fineline Electronix * (A)		4,030		89
National Instruments		1,398		46
NCR *		13,725		187
Netezza *		1,110		30

9 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Netgear *		2,400	$	65
Netlogic Microsystems * (A)		11,990		331
NetSuite * (A)		1,400		33
NeuStar, Cl A *		1,000		25
Novell *		6,500		39
Novellus Systems * (A)		1,600		42
Omnivision Technologies * (A)		21,720		500
Parametric Technology * (A)		49,859		974
Pegasystems (A)		4,752		148
Plantronics (A)		1,100		37
Plexus *		10,350		304
PMC - Sierra *		131,900		971
Polycom *		29,950		817
Power Integrations (A)		13,220		420
QLIK Technologies * (A)		7,600		168
Quality Systems (A)		9,081		602
Quest Software *		3,900		96
Radisys * (A)		4,300		40
Rambus * (A)		1,900		40
RealNetworks *		11,200		36
Red Hat *		1,700		70
Richardson Electronics (A)		11,300		119
Riverbed Technology * (A)		14,010		639
Rofin-Sinar Technologies * (A)		1,100		28
Rovi *		9,774		493
S1 *		3,900		20
SAIC *		36,700		586
Salesforce.com * (A)		800		89
Sanmina-SCI * (A)		55,360		669
Sapient		45,347		543
SAVVIS *		1,900		40
Scansource *		3,600		100
Semtech *		3,100		63
Silicon Graphics International * (A)		2,400		19
Silicon Laboratories *		3,850		141
Skyworks Solutions *		48,140		996
SolarWinds * (A)		6,100		105
Solera Holdings		2,600		115
STEC * (A)		7,500		93
SuccessFactors * (A)		25,590		643
SunPower, Cl A * (A)		5,400		78
Supertex * (A)		900		20
Synaptics * (A)		4,750		134
SYNNEX * (A)		2,118		60
Synopsys *		33,975		842
Syntel		1,900		85
Take-Two Interactive Software * (A)		2,400		24
Taleo, Cl A *		4,492		130
Tech Data *		13,400		540
Technitrol (A)		19,700		87
Tekelec *		3,400		44
Tellabs		7,100		53
Teradata *		4,800		185
Teradyne * (A)		33,982		379
Tessera Technologies *		1,900		35
TIBCO Software * (A)		23,940		425
TiVo * (A)		55,000		498
TNS *		14,744		250
Total System Services		1,600		24
Totvs		4,400		334

Description	Shares		Market Value ($ Thousands)
Trimble Navigation *		6,000	$	210
Ultimate Software Group *		800		31
Unisys * (A)		11,773		328
United Online (A)		61,330		351
Valueclick *		3,600		47
Varian Semiconductor Equipment Associates *		5,875		169
Veeco Instruments * (A)		6,200		216
VeriSign *		700		22
Viasat * (A)		1,100		45
Virtusa *		1,600		16
Vishay Intertechnology *		71,300		690
Vishay Precision Group *		5,091		79
VistaPrint * (A)		25,759		996
WebMD Health, Cl A *		1,121		56
Websense *		9,020		160
Western Digital *		15,900		451
Wright Express * (A)		25,395		907
Xyratex * (A)		18,819		279
Zebra Technologies, Cl A *		12,453		419
Zoran *		37,797		289
				51,469
Materials — 5.4%
Airgas		800		54
AK Steel Holding (A)		9,700		134
Albemarle		4,500		211
Allegheny Technologies		10,355		481
Alpha Natural Resources *		800		33
AM Castle *		170		2
AMCOL International (A)		1,500		39
Aptargroup		6,791		310
Ashland		2,600		127
Ball		3,500		206
Cabot		11,592		377
Celanese, Ser A		12,700		408
Century Aluminum *		5,100		67
China Green Agriculture * (A)		7,900		69
Clearwater Paper *		400		30
Coeur d’Alene Mines * (A)		3,300		66
Commercial Metals		1,300		19
Compass Minerals International		1,100		84
Crown Holdings *		4,800		137
Cytec Industries		10,606		598
Domtar (A)		4,800		310
Eagle Materials		1,000		24
Eastman Chemical		10,000		740
Ferro *		2,300		30
FMC		1,800		123
Georgia Gulf * (A)		1,400		23
Glatfelter (A)		1,700		21
Globe Specialty Metals		5,200		73
Golden Star Resources * (A)		4,200		21
Greif, Cl A		1,900		112
H.B. Fuller (A)		10,400		207
Headwaters * (A)		12,623		45
Horsehead Holding *		2,100		21
Huntsman		67,106		776
Innophos Holdings (A)		10,900		361
Kaiser Aluminum (A)		4,300		184
Koppers Holdings		5,097		137
LSB Industries * (A)		20,750		385
Lubrizol		6,100		646

10 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Mosaic		500	$	29
Nalco Holding		14,000		353
Neenah Paper (A)		7,642		116
NewMarket (A)		1,092		124
Nucor		9,009		344
Olin		3,500		71
OM Group *		9,751		294
Owens-Illinois *		27,834		781
Packaging Corp of America		28,299		656
PolyOne *		63,135		763
Reliance Steel & Aluminum		7,200		299
Rock-Tenn, Cl A		600		30
Rockwood Holdings * (A)		15,000		472
Royal Gold (A)		900		45
RPM International		900		18
RTI International Metals * (A)		8,646		265
Schnitzer Steel Industries, Cl A		3,300		159
Schulman A (A)		16,222		327
Schweitzer-Mauduit International (A)		5,041		294
Scotts Miracle-Gro, Cl A		1,500		78
Sealed Air		1,000		22
Sensient Technologies (A)		7,400		226
Sherwin-Williams		600		45
Silgan Holdings		32,230		1,022
Solutia * (A)		9,900		159
Spartech *		3,327		27
Steel Dynamics		39,800		561
Stillwater Mining * (A)		2,600		44
STR Holdings * (A)		800		17
Temple-Inland		2,300		43
Texas Industries (A)		1,000		32
Thompson Creek Metals * (A)		4,000		43
Titanium Metals *		6,800		136
Walter Energy		100		8
Westlake Chemical (A)		2,315		69
Worthington Industries (A)		9,100		137
WR Grace * (A)		9,100		254
				16,054
Telecommunication Services — 2.3%
Alaska Communications Systems Group (A)		21,470		218
American Tower, Cl A *		1,015		52
Atlantic Telegraph-Network		500		25
CenturyTel (A)		9,600		379
Cincinnati Bell * (A)		70,235		188
Consolidated Communications Holdings (A)		1,600		30
Frontier Communications		109,460		894
General Communication, Cl A *		5,600		56
Global Crossing * (A)		1,400		18
Globalstar * (A)		11,400		20
MetroPCS Communications *		140,060		1,465
Neutral Tandem * (A)		2,400		29
NII Holdings * (A)		40,500		1,664
NTELOS Holdings		10,300		174
PAETEC Holding * (A)		6,400		26
Price Communication *		3,800		—
Qwest Communications International (A)		15,700		98
SBA Communications, Cl A *		29,500		1,189
Syniverse Holdings *		1,000		23

Description	Shares		Market Value ($ Thousands)
tw telecom, Cl A *		9,490	$	176
USA Mobility (A)		19,900		319
				7,043
Utilities — 4.4%
AGL Resources		24,982		958
Alliant Energy		17,431		634
American States Water		1,700		61
American Water Works		24,698		575
Avista (A)		16,100		336
Black Hills (A)		3,485		109
CH Energy Group (A)		1,800		79
Chesapeake Utilities		400		15
Cleco		1,600		47
CMS Energy (A)		47,700		860
Consolidated Edison		5,929		286
Constellation Energy Group		11,000		355
Dynegy, Cl A * (A)		15,000		73
Edison International		9,690		333
El Paso Electric *		4,700		112
Empire District Electric (A)		12,731		256
Energen		2,800		128
Great Plains Energy (A)		56,292		1,064
Hawaiian Electric Industries		14,000		316
Idacorp		3,400		122
ITC Holdings		5,433		338
Laclede Group (A)		4,775		164
MDU Resources Group		30,300		604
MGE Energy		1,600		63
Mirant *		19,400		193
New Jersey Resources		750		29
NiSource		49,800		866
Northeast Utilities		4,000		118
Northwest Natural Gas		1,700		81
NorthWestern		18,625		531
NV Energy		2,100		28
Oneok		600		27
Ormat Technologies (A)		600		17
Pepco Holdings		2,200		41
Pinnacle West Capital		5,500		227
PNM Resources		1,700		19
Portland General Electric (A)		65,881		1,336
SCANA		13,806		557
Sempra Energy		1,600		86
South Jersey Industries (A)		4,136		205
Southern Union		600		15
TECO Energy		1,800		31
UGI		8,400		240
UIL Holdings		700		20
Westar Energy		5,800		141
Wisconsin Energy		1,900		110
Xcel Energy		18,194		418
				13,224
Total Common Stock (Cost $242,613) ($ Thousands)				290,306
CLOSED-END FUND — 0.0%
Kayne Anderson Energy Development (A)		800		13
Total Closed-End Fund (Cost $9) ($ Thousands)				13

11 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
AFFILIATED PARTNERSHIP — 38.8%
SEI Liquidity Fund, L.P., 0.230% ** †† (B)		117,278,838	$	116,670
Total Affiliated Partnership (Cost $117,279) ($ Thousands)				116,670
CASH EQUIVALENT — 3.3%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		9,908,999		9,909
Total Cash Equivalent (Cost $9,909) ($ Thousands)				9,909
U.S. TREASURY OBLIGATION (C) (D) — 0.2%
U.S. Treasury Bills
0.200%, 12/16/10	$	702		702
Total U.S. Treasury Obligation (Cost $702) ($ Thousands)				702
Total Investments — 139.0% (Cost $370,512) ($ Thousands)			$	417,600

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
Russell 2000 Index E-MINI		79		Dec-2010	$	245
S&P Mid 400 Index E-MINI		44		Dec-2010		129
					$	374

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

A summary of the outstanding forward foreign currency contracts held by the Fund at September 30, 2010, is as follows:

Counterparty	Maturity Date	Currency to Deliver (Thousands)		Currency to Receive (Thousands)			Unrealized Appreciation (Depreciation) ($ Thousands)
Westpac Banking	10/5/10	USD	13		AUD	16	$	3
JP Morgan Chase	10/5/10	USD	19		AUD	23		3
Deutsche Bank AG	10/5/10	USD	24		AUD	28		3
Westpac Banking	10/5/10	USD	18		AUD	19		—
Deutsche Bank AG	10/5/10	AUD	297		USD	246		(41	)
Barclays Capital	10/5/10	AUD	33		USD	28		(4	)
Barclays Capital	10/5/10	AUD	16		USD	15		(1	)
							$	(37	)

12 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Small Cap Fund

September 30, 2010

Percentages are based on Net Assets of $300,343 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $114,123 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $116,670 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

AUD — Australian Dollar

Cl — Class

L.P. — Limited Partnership

Ser — Series

USD — United States Dollar

Amounts designated as “—” are $0 or have been rounded to $0.

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	290,306	$	—	$	—	$	290,306
Closed-End Fund		13		—		—		13
Cash Equivalent		9,909		—		—		9,909
U.S. Treasury Obligation		—		702		—		702
Affiliated Partnership		—		116,670		—		116,670
Total Investments in Securities	$	300,228	$	117,372	$	—	$	417,600

Other Financial Instruments	Level 1		Level 2			Level 3		Total
Futures Contracts *	$	374	$	—		$	—	$	374
Forwards *		—		(37	)		—		(37	)
	$	374	$	(37	)	$	—	$	337

* Futures contracts and Forwards are valued at the unrealized appreciation (depreciation) on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

13 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Mid-Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 97.1%
Consumer Discretionary — 17.0%
Aeropostale *		11,219	$	261
American Eagle Outfitters		50,615		757
Apollo Group, Cl A *		9,148		470
Autoliv		4,000		261
Bed Bath & Beyond *		10,190		442
BorgWarner * (A)		9,782		515
Career Education * (A)		18,108		389
CBS, Cl B		3,800		60
Chico’s FAS		3,800		40
Chipotle Mexican Grill, Cl A * (A)		1,200		206
Coach		10,700		460
Darden Restaurants		15,914		681
DeVry		3,400		167
Dick’s Sporting Goods * (A)		11,572		325
DISH Network, Cl A		8,900		171
Dollar General *		400		12
Dollar Tree *		5,100		249
Expedia		13,972		394
Federal Mogul, Cl A *		900		17
Fossil *		3,200		172
GameStop, Cl A * (A)		14,649		289
Gannett		16,500		202
Gap		1,500		28
Gentex		12,200		238
Genuine Parts		3,900		174
Goodyear Tire & Rubber *		4,400		47
Guess? (A)		7,190		292
H&R Block		17,100		221
Hanesbrands *		1,300		34
Harley-Davidson (A)		23,098		657
Harman International Industries *		6,347		212
Hyatt Hotels, Cl A *		11,684		437
International Game Technology (A)		37,577		543
International Speedway, Cl A		1,100		27
Interpublic Group *		112,401		1,127
iRobot *		300		5
Leggett & Platt		19,679		448
Liberty Media - Interactive, Cl A *		18,300		251
Liberty Media - Starz, Ser A *		2,700		175
Limited Brands (A)		7,800		209
Live Nation *		47,847		473
LKQ *		22,423		466
Macy’s		13,800		318
Marriott International, Cl A		8,862		318
Mattel		14,900		350
McGraw-Hill		3,600		119
Mohawk Industries * (A)		4,976		265
National CineMedia		40,857		731
National Presto Industries		200		21
NetFlix * (A)		1,568		254
Nordstrom		17,227		641
Oxford Industries		1,600		38
Penn National Gaming *		8,022		238
PetSmart		14,361		503
Phillips-Van Heusen		14,619		879
Polaris Industries (A)		10,067		655
priceline.com *		648		226
Ross Stores (A)		5,400		295

Description	Shares		Market Value ($ Thousands)
Royal Caribbean Cruises * (A)		300	$	9
Scientific Games, Cl A * (A)		88,173		855
Signet Jewelers *		500		16
Tempur-Pedic International *		3,800		118
Thor Industries (A)		4,100		137
TRW Automotive Holdings *		8,700		362
Tupperware Brands		1,500		69
Urban Outfitters *		300		9
VF		3,700		300
WABCO Holdings *		2,900		122
Warnaco Group *		400		20
Whirlpool		4,370		354
WMS Industries *		10,067		383
Wyndham Worldwide		1,300		36
				21,245
Consumer Staples — 4.5%
Avon Products		500		16
ConAgra Foods		8,000		175
Constellation Brands, Cl A *		36,594		647
Corn Products International		900		34
Dean Foods *		50,621		517
Del Monte Foods		43,168		566
Dr Pepper Snapple Group		2,600		92
Energizer Holdings *		500		34
Herbalife		1,700		102
HJ Heinz (A)		2,100		99
Hormel Foods		3,600		161
JM Smucker		1,300		79
Kroger		26,309		570
Lorillard		2,400		193
McCormick (A)		12,866		541
Mead Johnson Nutrition, Cl A		5,600		319
Molson Coors Brewing, Cl B		21,044		994
Ralcorp Holdings *		1,700		99
Sara Lee		9,800		132
Smithfield Foods * (A)		3,900		66
Tyson Foods, Cl A		16,700		267
				5,703
Energy — 7.4%
Atwood Oceanics *		8,200		250
Chesapeake Energy		1,800		41
Cimarex Energy (A)		4,200		278
Concho Resources * (A)		5,931		392
Continental Resources * (A)		3,200		148
Dresser-Rand Group *		4,200		155
El Paso		1,000		12
Equities		16,750		604
Frontier Oil		6,500		87
Helmerich & Payne		5,200		210
Hess		2,300		136
Holly		2,500		72
Marathon Oil		4,800		159
Murphy Oil		14,230		881
Nabors Industries *		39,785		719
National Oilwell Varco		1,000		44
Newfield Exploration *		14,986		861
Noble Energy		600		45
Oil States International *		2,800		130
PetroHawk Energy *		30,801		497
Pioneer Natural Resources (A)		9,017		586
Range Resources		27,533		1,050

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Mid-Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
RPC		1,400	$	30
Spectra Energy		33,461		755
Sunoco (A)		1,800		66
Unit *		1,300		49
Valero Energy		18,900		331
Weatherford International *		5,500		94
Whiting Petroleum *		5,717		546
				9,228
Financials — 15.0%
Allied World Assurance Holdings		9,345		529
Allstate		3,300		104
American Equity Investment Life Holding		2,000		21
American Financial Group		6,500		199
American International Group * (A)		3,000		117
Ameriprise Financial		16,974		803
Annaly Capital Management †		13,100		231
Assurant		300		12
Bancorp Rhode Island		1,300		36
BOK Financial		1,500		68
Boston Properties † (A)		7,406		616
Brandywine Realty Trust †		9,900		121
Camden National		200		7
CapitalSource		6,900		37
CB Richard Ellis Group, Cl A * (A)		20,263		370
Chatham Lodging Trust †		700		13
Chimera Investment †		45,800		181
CIT Group *		5,500		224
Comerica		17,764		660
CommonWealth REIT †		4,250		109
Community Trust Bancorp		400		11
Compass Diversified Holdings		4,700		76
Discover Financial Services		2,000		33
Duke Realty †		8,300		96
E*Trade Financial *		8,500		124
Endurance Specialty Holdings		16,676		664
Erie Indemnity, Cl A		600		34
Everest Re Group		3,500		303
Federated Investors, Cl B (A)		29,640		675
Fifth Third Bancorp		68,630		826
Fulton Financial		14,400		130
Genworth Financial, Cl A *		11,300		138
Hanover Insurance Group (A)		6,739		317
Hartford Financial Services Group		13,500		310
Hospitality Properties Trust †		6,200		138
Host Hotels & Resorts † (A)		46,695		676
Hudson City Bancorp		17,000		208
Huntington Bancshares (A)		23,900		136
Inland Real Estate †		1,300		11
Invesco Mortgage Capital †		4,500		97
Jones Lang LaSalle		1,600		138
Keycorp (A)		17,000		135
Kimco Realty †		3,000		47
Liberty Property Trust † (A)		26,638		850
Lincoln National		6,400		153
Maiden Holdings		1,100		8
Marshall & Ilsley		10,500		74
MFA Financial † (A)		20,000		153
NASDAQ OMX Group *		3,000		58

Description	Shares		Market Value ($ Thousands)
NewStar Financial *		3,100	$	23
NYSE Euronext		4,500		129
Oppenheimer Holdings, Cl A		2,500		70
Parkway Properties †		3,500		52
PartnerRe		8,785		704
People’s United Financial		62,547		819
Piedmont Office Realty Trust, Cl A † (A)		4,500		85
ProAssurance *		11,210		646
Prologis †		7,900		93
Raymond James Financial (A)		14,292		362
Rayonier †		1,300		65
Regions Financial		28,300		206
Reinsurance Group of America, Cl A		15,284		738
Resource Capital †		15,500		98
SCBT Financial		1,600		50
SLM *		26,100		302
Stewart Information Services (A)		3,200		36
Sunstone Hotel Investors * †		5,600		51
SunTrust Banks		2,800		72
Synovus Financial (A)		209,124		514
T. Rowe Price Group (A)		400		20
Unitrin		2,300		56
Unum Group		40,688		901
Vornado Realty Trust † (A)		635		54
Washington Federal		6,500		99
WesBanco		3,600		59
Willis Group Holdings		20,128		620
Zions Bancorporation (A)		35,450		757
				18,758
Health Care — 10.8%
Acorda Therapeutics *		12,717		420
Aetna		7,400		234
Alexion Pharmaceuticals *		1,700		110
Allergan		900		60
Allscripts Healthcare Solutions *		9,000		166
AmerisourceBergen		21,586		662
Auxilium Pharmaceuticals * (A)		13,423		333
Biogen Idec *		300		17
Brookdale Senior Living *		18,974		309
Bruker BioSciences * (A)		4,200		59
C.R. Bard		3,400		277
CareFusion *		7,000		174
Cerner * (A)		2,800		235
Cigna		3,100		111
Cooper (A)		8,216		380
Coventry Health Care *		11,200		241
Covidien		600		24
Dentsply International (A)		7,192		230
Emergency Medical Services, Cl A *		300		16
Endo Pharmaceuticals Holdings *		4,500		149
Forest Laboratories *		16,366		506
Gen-Probe *		6,273		304
Health Net *		6,300		171
Henry Schein *		11,319		663
Hill-Rom Holdings		400		14
Hologic *		46,875		750
Humana *		11,058		556
IDEXX Laboratories * (A)		2,200		136

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Mid-Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Impax Laboratories *		300	$	6
Intuitive Surgical * (A)		1,300		369
Invacare (A)		2,900		77
Kinetic Concepts *		1,300		47
Life Technologies *		7,400		345
Medco Health Solutions *		200		10
Mettler Toledo International *		1,500		187
Mylan Laboratories * (A)		23,917		450
Onyx Pharmaceuticals *		19,673		519
PerkinElmer		14,509		336
Perrigo (A)		7,531		484
Quest Diagnostics (A)		10,257		518
Shire ADR		15,637		1,052
Sirona Dental Systems *		600		22
St. Jude Medical *		900		35
SXC Health Solutions *		6,000		219
Valeant Pharmaceuticals International *		22,199		556
Vertex Pharmaceuticals * (A)		10,076		348
Warner Chilcott, Cl A		16,059		360
Waters *		3,900		276
				13,523
Industrials — 13.9%
Amerco *		300		24
Ametek		3,400		162
Armstrong World Industries *		1,500		62
Avery Dennison		19,102		709
BE Aerospace *		3,700		112
Bucyrus International, Cl A		6,002		416
Cintas (A)		27,323		753
Cooper Industries, Cl A		6,500		318
Copart *		3,500		115
Crane		1,700		64
Cummins		900		82
Delta Air Lines * (A)		17,300		201
Dover		19,575		1,022
DXP Enterprises *		800		15
Eaton		4,100		338
Equifax		600		19
Flowserve		4,748		520
Fluor (A)		12,974		642
Gardner Denver		11,397		612
Hertz Global Holdings * (A)		21,561		228
IDEX		4,500		160
IHS, Cl A *		9,405		639
Ingersoll-Rand		8,751		312
ITT		15,965		748
JB Hunt Transport Services		1,700		59
Joy Global		3,700		260
Kennametal		600		19
L-3 Communications Holdings		3,400		246
M&F Worldwide *		500		12
Manpower		11,344		592
Navistar International *		4,248		185
Northrop Grumman		3,700		224
Oshkosh Truck *		14,529		400
Owens Corning *		7,900		203
PACCAR (A)		13,032		627
Parker Hannifin		5,800		406
Pentair		200		7
Pitney Bowes (A)		28,196		603

Description	Shares		Market Value ($ Thousands)
Raytheon		2,900	$	133
Regal-Beloit		600		35
Republic Services		7,400		226
Rockwell Automation		6,200		383
Roper Industries		3,000		196
RR Donnelley & Sons		7,300		124
Spirit Aerosystems Holdings, Cl A * (A)		30,430		606
Teleflex		10,338		587
Thomas & Betts *		7,547		310
Timken		18,493		709
Toro (A)		900		51
Towers Watson, Cl A		12,266		603
URS *		11,790		448
UTI Worldwide		15,722		253
WESCO International * (A)		11,664		458
WW Grainger (A)		1,900		227
				17,465
Information Technology — 14.8%
Acme Packet *		400		15
Activision Blizzard		46,452		503
Adobe Systems * (A)		17,876		467
Agilent Technologies *		4,700		157
Alliance Data Systems * (A)		13,490		880
Amdocs *		3,700		106
Analog Devices		21,474		674
AOL *		5,300		131
Arrow Electronics *		7,800		208
Autodesk *		8,000		256
Avnet *		11,500		311
AVX		3,000		41
Brightpoint *		2,100		15
Broadcom, Cl A (A)		1,600		57
Brocade Communications Systems *		98,535		576
CA		8,000		169
Cognizant Technology Solutions, Cl A *		3,514		227
Computer Sciences		6,500		299
Diebold		20,088		625
Dolby Laboratories, Cl A *		9,781		556
EchoStar, Cl A *		1,700		33
Equinix * (A)		1,930		198
F5 Networks *		3,400		353
Factset Research Systems (A)		1,800		146
Fairchild Semiconductor International *		7,900		74
Gartner *		17,172		505
GSI Commerce * (A)		50,966		1,259
Harris		6,100		270
IAC *		1,300		34
Ingram Micro, Cl A *		7,600		128
Intuit *		6,500		285
Itron *		400		24
Jabil Circuit		6,800		98
Juniper Networks *		800		24
Kla-Tencor		3,500		123
Lam Research *		6,700		280
Lender Processing Services		5,400		179
Lexmark International, Cl A *		2,000		89

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Mid-Cap Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
LSI Logic *		28,000	$	128
Marvell Technology Group *		46,670		817
Maxim Integrated Products (A)		1,100		20
Micron Technology * (A)		19,100		138
Micros Systems *		7,848		332
Microsemi * (A)		42,950		737
Molex (A)		32,599		682
NetApp * (A)		5,400		269
Novellus Systems *		1,600		42
ON Semiconductor *		4,700		34
PMC - Sierra *		102,765		756
SAIC *		5,000		80
SanDisk *		7,500		275
Seagate Technology *		19,300		227
Symantec *		9,000		137
Synopsys *		36,818		912
Teradata *		2,700		104
Teradyne * (A)		22,310		249
Tivo *		29,515		267
Vishay Intertechnology *		10,700		104
VistaPrint * (A)		13,300		514
Western Digital *		4,800		136
Western Union		7,000		124
Wright Express * (A)		18,222		651
Xerox		29,200		302
Xilinx (A)		300		8
Zebra Technologies, Cl A *		2,700		91
				18,511
Materials — 5.7%
Albemarle		2,500		117
Alcoa		6,300		76
Allegheny Technologies (A)		15,613		725
Ashland		6,300		307
Ball		1,100		65
Boise * (A)		1,500		10
Cabot		2,700		88
Celanese, Ser A		21,662		695
Commercial Metals		3,500		51
Cytec Industries		2,300		130
Eastman Chemical		2,900		215
Ecolab		11,848		601
Huntsman		55,310		640
International Flavors & Fragrances		1,300		63
International Paper		8,800		191
Lubrizol		3,400		360
Nalco Holding		5,600		141
Nucor (A)		13,584		519
Owens-Illinois *		32,432		910
Packaging Corp of America		27,286		632
Reliance Steel & Aluminum		1,000		41
Schnitzer Steel Industries, Cl A		2,300		111
Steel Dynamics		7,500		106
Temple-Inland		8,300		155
Walter Energy		2,200		179
				7,128
Telecommunication Services — 2.4%
AboveNet *		500		26
CenturyTel (A)		2,800		110
MetroPCS Communications * (A)		47,068		492
NII Holdings * (A)		31,301		1,287

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
SBA Communications, Cl A *		22,314	$	899
Telephone & Data Systems		3,900		128
USA Mobility		1,500		24
				2,966
Utilities — 5.6%
AES *		14,000		159
AGL Resources		20,280		778
Ameren		1,500		43
American Water Works		35,447		825
Atmos Energy		4,700		138
Consolidated Edison (A)		8,940		431
Constellation Energy Group		1,800		58
DPL		5,100		133
Edison International		23,110		795
Energen		6,200		283
Entergy		100		8
Great Plains Energy		34,352		649
MDU Resources Group		5,300		106
NiSource		2,500		43
Northeast Utilities		800		24
NV Energy		3,600		47
OGE Energy		2,300		92
Oneok		1,400		63
Portland General Electric		26,041		528
PPL		2,700		74
SCANA		15,979		644
Sempra Energy		1,000		54
Southern Union		4,300		103
TECO Energy		14,900		258
Xcel Energy (A)		29,784		684
				7,020
Total Common Stock (Cost $114,855) ($ Thousands)				121,547
AFFILIATED PARTNERSHIP — 20.4%
SEI Liquidity Fund, L.P., 0.230% ** †† (B)		25,976,868		25,599
Total Affiliated Partnership (Cost $25,977) ($ Thousands)				25,599
CASH EQUIVALENT — 2.5%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		3,119,529		3,120
Total Cash Equivalent (Cost $3,120) ($ Thousands)				3,120
U.S. TREASURY OBLIGATION (C) (D) — 0.5%
U.S. Treasury Bills 0.200%, 12/16/10	$	621		621
Total U.S. Treasury Obligation (Cost $620) ($ Thousands)				621
Total Investments — 120.5% (Cost $144,572) ($ Thousands)			$	150,887

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Mid-Cap Fund

September 30, 2010

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P Mid 400 Index E-MINI		40		Dec-2010	$	109

For the period ended September 30, 2010, the total amount of all open futures contracts as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $125,192 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) This Security or a partial position of this security is on loan at September 30, 2010. The total market value of securities on loan at September 30, 2010 was $25,217 ($ Thousands).

(B) This security was purchased with cash collateral held from securities on loan. The total market value of such securities as of September 30, 2010 was $25,599 ($ Thousands).

(C) The rate reported is the effective yield at the time of purchase.

(D) Security, or portion thereof, has been pledged as collateral on open futures contracts.

ADR — American Depositary Receipt

Cl — Class

L.P. — Limited Partnership

Ser — Series

The following is a summary of the inputs used as of September 30, 2010, in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	121,547	$	—	$	—	$	121,547
Affiliated Partnership		—		25,599		—		25,599
Cash Equivalent		3,120		—		—		3,120
U.S. Treasury Obligation		—		621		—		621
Total Investments in Securities	$	124,667	$	26,220	$	—	$	150,887

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	109	$	—	$	—	$	109

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

U.S. Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 96.7%
Consumer Discretionary — 9.4%
Advance Auto Parts		28,600	$	1,678
Amazon.com *		36,240		5,692
Autoliv		10,000		653
Buckle		11,600		308
Burger King Holdings		69,900		1,669
Career Education *		45,300		973
Carter’s *		43,400		1,143
Choice Hotels International		40,200		1,466
Cinemark Holdings		86,000		1,385
DeVry		18,300		901
DIRECTV, Cl A *		43,200		1,798
Discovery Communications, Cl A *		41,600		1,812
DreamWorks Animation SKG, Cl A *		40,300		1,286
GameStop, Cl A *		55,900		1,102
Genuine Parts		24,800		1,106
Gildan Activewear *		28,600		803
H&R Block		110,300		1,428
Hillenbrand		3,780		81
ITT Educational Services *		19,500		1,370
NetFlix *		8,346		1,353
Panera Bread, Cl A *		17,600		1,560
PetSmart		27,060		947
priceline.com *		14,044		4,892
Regal Entertainment Group, Cl A		37,600		493
Shaw Communications, Cl B		43,900		966
Strayer Education		11,984		2,091
				38,956
Consumer Staples — 19.1%
Altria Group		230,976		5,548
Brown-Forman, Cl B		80,022		4,933
Campbell Soup		63,608		2,274
Church & Dwight		22,500		1,461
Clorox		56,943		3,801
Dean Foods *		119,800		1,223
Flowers Foods		90,750		2,254
General Mills		48,860		1,786
Hansen Natural *		41,188		1,920
Hershey		139,290		6,629
HJ Heinz		10,791		511
Hormel Foods		155,318		6,927
Kellogg		95,312		4,814
Kimberly-Clark		94,312		6,135
Kroger		33,000		715
Lorillard		67,425		5,415
McCormick		103,307		4,343
Philip Morris International		98,663		5,527
Ralcorp Holdings *		22,600		1,322
Reynolds American		86,629		5,145
Ruddick		45,000		1,561
Safeway		8,383		177
Sara Lee		69,713		936
SYSCO		138,645		3,954
				79,311
Energy — 3.4%
Chevron		26,900		2,180
ConocoPhillips		2,273		130
Dresser-Rand Group *		39,100		1,443

Description	Shares		Market Value ($ Thousands)
Enbridge		36,400	$	1,904
Exxon Mobil		29,200		1,804
Imperial Oil		13,500		511
Murphy Oil		14,000		867
PetroHawk Energy *		93,200		1,504
Range Resources		23,700		904
SEACOR Holdings *		7,200		613
Teekay Shipping		19,600		524
TransCanada		44,300		1,644
				14,028
Financials — 12.7%
Alleghany *		2,040		618
Allied World Assurance Holdings		47,656		2,697
Arch Capital Group *		34,728		2,910
Aspen Insurance Holdings		9,533		289
Bank of Hawaii		86,415		3,882
BOK Financial		15,311		691
Brown & Brown		26,200		529
Capitol Federal Financial		75,122		1,856
Commerce Bancshares		133,173		5,006
Corporate Office Properties Trust †		39,700		1,481
Cullen/Frost Bankers		66,031		3,557
East West Bancorp		33,823		550
Endurance Specialty Holdings		2,494		99
Erie Indemnity, Cl A		27,600		1,547
Essex Property Trust †		15,400		1,685
Federated Investors, Cl B		58,600		1,334
First Citizens BancShares, Cl A		11,436		2,119
Fulton Financial		67,100		608
Health Care †		36,700		1,738
Home Properties †		26,500		1,402
Hudson City Bancorp		114,000		1,398
MFA Financial †		113,400		865
NASDAQ OMX Group *		26,200		509
New York Community Bancorp		24,031		390
PartnerRe		8,273		663
ProAssurance *		20,500		1,181
Prosperity Bancshares		35,600		1,156
Public Storage †		8,400		815
Realty Income †		47,100		1,588
RenaissanceRe Holdings		55,048		3,301
Senior Housing Properties Trust †		27,100		637
Tanger Factory Outlet Centers †		29,700		1,400
TFS Financial		131,768		1,211
UMB Financial		31,300		1,111
Washington Real Estate Investment Trust †		51,700		1,641
White Mountains Insurance Group		1,713		528
				52,992
Health Care — 20.6%
Abbott Laboratories		117,780		6,153
Abraxis BioScience *		6,074		470
Alexion Pharmaceuticals *		37,161		2,392
AmerisourceBergen		215,872		6,619
Amgen *		105,780		5,829
Baxter International		22,528		1,075
Becton Dickinson		65,560		4,858
Biogen Idec *		78,674		4,415
C.R. Bard		80,915		6,589

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

U.S. Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Cardinal Health		165,843	$	5,479
Celgene *		13,000		749
Edwards Lifesciences *		29,230		1,960
Eli Lilly		135,736		4,958
Emergency Medical Services, Cl A *		26,500		1,411
Endo Pharmaceuticals Holdings *		53,700		1,785
Forest Laboratories *		123,040		3,806
Genzyme *		35,274		2,497
Henry Schein *		23,226		1,361
Johnson & Johnson		68,537		4,246
Laboratory Corp of America Holdings *		9,900		776
LifePoint Hospitals *		19,200		673
McKesson		112,345		6,941
Myriad Genetics *		54,800		899
Owens & Minor		44,250		1,259
Patterson		48,100		1,378
SXC Health Solutions *		44,740		1,632
Techne		63,609		3,927
United Therapeutics *		24,300		1,361
				85,498
Industrials — 3.7%
Alliant Techsystems *		16,400		1,237
C.H. Robinson Worldwide		23,700		1,657
Clarcor		14,400		556
FTI Consulting *		27,800		964
Gardner Denver		24,600		1,321
IHS, Cl A *		10,200		694
KBR		69,200		1,705
Landstar System		31,500		1,217
Lennox International		33,300		1,388
Lincoln Electric Holdings		22,100		1,278
Nordson		17,400		1,282
Northrop Grumman		2,372		144
Raytheon		13,000		594
Rollins		65,800		1,538
				15,575
Information Technology — 10.1%
Activision Blizzard		140,700		1,522
Adtran		40,700		1,437
Amdocs *		26,059		747
Analog Devices		114,926		3,607
CGI Group, Cl A *		36,400		547
Cognizant Technology Solutions, Cl A *		84,579		5,453
Computer Sciences		37,799		1,739
Diebold		17,400		541
eBay *		1,858		45
Flir Systems *		18,600		478
Harris		33,700		1,492
Ingram Micro, Cl A *		94,404		1,591
International Business Machines		42,655		5,722
Lender Processing Services		20,724		688
Microchip Technology		33,175		1,043
Micros Systems *		24,300		1,029
NeuStar, Cl A *		40,700		1,012
SAIC *		18,179		290
Tech Data *		94,708		3,817
Texas Instruments		169,858		4,610
WebMD Health, Cl A *		45,276		2,258

Description	Shares		Market Value ($ Thousands)
Xilinx		63,967	$	1,702
Zebra Technologies, Cl A *		21,300		717
				42,087
Materials — 3.0%
Aptargroup		37,800		1,726
Compass Minerals International		19,000		1,456
Greif, Cl A		22,600		1,330
Intrepid Potash *		43,600		1,137
Newmont Mining		85,706		5,383
Silgan Holdings		44,000		1,395
				12,427
Telecommunication Services — 2.2%
AT&T		79,900		2,285
BCE		54,000		1,755
MetroPCS Communications *		151,400		1,584
SBA Communications, Cl A *		40,900		1,648
Verizon Communications		60,330		1,966
				9,238
Utilities — 12.5%
AGL Resources		82,355		3,159
Alliant Energy		39,900		1,450
American Water Works		55,200		1,284
Atmos Energy		111,335		3,257
Consolidated Edison		39,300		1,895
DPL		56,042		1,464
DTE Energy		28,539		1,311
Edison International		46,700		1,606
Energen		35,900		1,641
Great Plains Energy		68,300		1,291
Hawaiian Electric Industries		57,900		1,305
Idacorp		42,700		1,534
Integrys Energy Group		30,104		1,567
ITC Holdings		10,518		655
Nicor		59,996		2,749
NSTAR		124,608		4,903
OGE Energy		31,800		1,268
Pepco Holdings		60,200		1,120
PG&E		15,500		704
Piedmont Natural Gas		53,200		1,543
SCANA		75,402		3,040
TECO Energy		60,300		1,045
UGI		92,584		2,649
Vectren		105,405		2,727
WGL Holdings		40,100		1,515
Wisconsin Energy		88,024		5,088
				51,770
Total Common Stock (Cost $345,651) ($ Thousands)				401,882
CASH EQUIVALENT — 2.7%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		11,261,888		11,262
Total Cash Equivalent (Cost $11,262) ($ Thousands)				11,262

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

U.S. Managed Volatility Fund

September 30, 2010

Description	Face Amount ($ Thousands)		Market Value ($ Thousands)
U.S. TREASURY OBLIGATION (A) (B) — 0.2%
U.S. Treasury Bills
0.197%, 12/16/10	$	876	$	876
Total U.S. Treasury Obligation (Cost $876) ($ Thousands)				876
Total Investments — 99.6% (Cost $357,789) ($ Thousands)			$	414,020

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		124		Dec-2010	$	161

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $415,706 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) The rate reported is the effective yield at the time of purchase.

(B) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	401,882	$	—	$	—	$	401,882
Cash Equivalent		11,262		—		—		11,262
U.S. Treasury Obligation		—		876		—		876
Total Investments in Securities	$	413,144	$	876	$	—	$	414,020

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	161	$	—	$	—	$	161

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Global Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 93.5%
Australia — 7.8%
AGL Energy		64,462	$	1,009
Amcor		82,898		523
ARB		15,114		110
CFS Retail Property Trust †		91,638		168
Coal & Allied Industries		11,515		1,162
Coca-Cola Amatil		215,260		2,497
CSL		89,418		2,861
Decmil Group *		77,458		179
Foster’s Group		516,364		3,065
Gujarat NRE Coking Coal *		24,727		15
McPherson’s		16,139		46
Metcash		765,054		3,237
Origin Energy		101,311		1,555
RHG *		89,178		59
SP AusNet, Cl Miscellaneous		523,515		436
Specialty Fashion Group		19,378		27
TABCORP Holdings		690,995		4,683
Tatts Group		1,251,801		2,897
Wesfarmers		35,690		1,137
				25,666
Belgium — 2.9%
Belgacom		41,343		1,615
Cofinimmo †		2,069		275
Colruyt		12,410		3,285
Delhaize Group		15,737		1,143
Intervest Offices †		868		27
Mobistar		54,060		3,315
				9,660
Canada — 11.0%
Alimentation Couche Tard, Cl B		82,500		1,850
BCE		187,100		6,100
Bell Aliant Regional Communications Income Fund		4,800		121
Canadian National Railway		14,500		930
Canadian Tire, Cl A		4,000		223
Canadian Utilities, Cl A		14,700		715
Capital Power		4,100		96
Cash Store Financial Services		8,600		129
Centerra Gold		27,800		450
CGI Group, Cl A *		101,500		1,533
Cott *		3,900		31
Empire, Cl A		46,800		2,512
Enbridge		22,800		1,198
Fairfax Financial Holdings		600		245
Fortis		38,200		1,189
Genworth MI Canada		6,631		166
George Weston		25,800		1,986
Laurentian Bank of Canada		4,800		205
Loblaw		11,800		469
Manitoba Telecom Services		19,200		528
Metro, Cl A		73,500		3,198
National Bank of Canada		11,700		740
Provident Energy Trust		11,000		78
Rogers Communications, Cl B		135,800		5,098
Saputo		114,600		3,923
TELUS, Cl A		16,100		685
TMX Group		13,100		404

Description	Shares		Market Value ($ Thousands)
Valeant Pharmaceuticals International *		48,900	$	1,237
Yellow Pages Income Fund		54,600		295
				36,334
Cayman Islands — 0.0%
Pacific Textile Holdings		21,000		12
				12
Denmark — 1.9%
Coloplast, Cl B		24,716		2,959
H Lundbeck		22,741		402
Novo Nordisk, Cl B		29,483		2,930
				6,291
European Currency Union — 0.0%
Oriola-KD		4,851		28
				28
Finland — 0.7%
Kesko, Cl B		2,665		125
Orion, Cl B		77,325		1,547
Tietoenator		23,696		472
				2,144
France — 1.6%
Boiron		6,078		202
Bonduelle S.C.A.		533		51
France Telecom		70,588		1,527
PagesJaunes Groupe		23,599		247
Sanofi-Aventis		16,432		1,097
Sartorius Stedim Biotech		889		42
Societe BIC		26,344		2,118
				5,284
Germany — 1.4%
Beiersdorf		17,895		1,097
Deutsche Telekom		89,621		1,228
Fresenius		2,946		236
Fresenius Medical Care		21,287		1,317
Hornbach Holding		217		21
Suedzucker		26,720		598
				4,497
Greece — 0.0%
Public Power		9,176		143
				143
Guernsey — 0.4%
Resolution		379,906		1,467
				1,467
Hong Kong — 3.9%
Cathay Pacific Airways		300,000		814
Cheung Kong Infrastructure Holdings		60,000		238
CLP Holdings		470,500		3,754
HongKong Electric Holdings		620,000		3,766
Link †		1,051,500		3,115
NAM TAI Electronics *		10,190		47
PCCW		1,081,000		391
Yue Yuen Industrial Holdings		193,000		715
				12,840
Ireland — 0.1%
Accenture, Cl A		9,495		404

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Global Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Kerry Group, Cl A		2,259	$	79
				483
Israel — 0.8%
Check Point Software Technologies *		34,434		1,272
Elbit Systems		3,675		196
Frutarom Industries		5,818		57
Shamir Optical Industry		2,240		24
Teva Pharmaceutical Industries		18,991		1,013
				2,562
Italy — 2.0%
CSP International Fashion Group		6,238		8
DiaSorin		7,633		314
Parmalat		397,107		1,020
Snam Rete Gas		769,471		3,903
Terna Rete Elettrica Nazionale		307,052		1,307
				6,552
Japan — 23.6%
77 Bank		25,000		126
ABC-Mart		18,100		557
Able		2,700		23
Ain Pharmaciez		1,200		42
Aisin Seiki		20,700		645
Ajis		1,300		19
Amiyaki Tei		13		37
Asahi Breweries		133,700		2,673
Asahi Kasei		234,000		1,289
Bank of Kyoto		11,000		89
Benesse		12,500		601
BML		2,800		70
Chubu Electric Power		147,300		3,638
Chugoku Bank		4,000		49
Cleanup		3,600		22
Coca-Cola Central Japan		11,500		154
Combi		9,500		81
Dainippon Sumitomo Pharma		44,900		376
Dena		39,200		1,234
Doshisha		1,000		25
Faith		242		19
FamilyMart		49,500		1,773
Fuji Oil		86,800		1,301
Fuji Soft		8,000		123
Hachijuni Bank		21,000		110
Haruyama Trading		2,000		8
Hazama		14,000		12
Hiday Hidaka		3,100		43
Hitachi High-Technologies		1,200		22
Hokkaido Electric Power		6,500		129
Hokuriku Electric Power		29,100		664
Idemitsu Kosan		27,800		2,383
Infocom		195		201
Ito En		45,500		747
Itochu Techno-Solutions		3,700		121
Itochu-Shokuhin		1,300		45
Iyo Bank		36,000		292
Japan Retail Fund Investment, Cl A †		217		305
Kamigumi		115,000		853
Kansai Electric Power		108,000		2,621
Kansai Paint		32,000		272

Description	Shares		Market Value ($ Thousands)
KDDI		93	$	445
Keihin Electric Express Railway		174,000		1,681
Kewpie		96,200		1,244
Kobayashi Pharmaceutical		14,900		661
Koito Manufacturing		52,000		797
Kojima		6,600		34
Kokuyo		27,300		215
Komatsu Seiren		5,000		20
Kyushu Electric Power		113,400		2,587
Lawson		60,200		2,756
Lion		141,000		768
Marudai Food		82,000		255
Maruzen Showa Unyu		7,000		24
Matsuya Foods		1,600		24
McDonald’s Holdings Japan		34,300		825
MEIJI Holdings		11,200		527
Mikuni Coca-Cola Bottling		11,800		103
Miraca Holdings		24,500		867
Morinaga Milk Industry		83,025		356
NEC Mobiling		1,700		45
Nichirei		45,000		191
Nichireki		5,000		20
Nidec		500		44
Nihon Shokuhin Kako		7,000		38
Nippon Express		33,000		125
Nippon Meat Packers		15,000		183
Nippon Telegraph & Telephone		28,100		1,226
Nishi-Nippon City Bank		19,000		54
Nisshin Seifun Group		42,500		558
Nissin Food Products		4,100		148
Nitori Holdings		17,000		1,420
Noevir		4,800		54
NTT DoCoMo		2,647		4,404
Ohsho Food Service		3,400		77
Okumura		64,000		217
Oracle Japan		25,400		1,209
Oriental Land		38,600		3,595
Osaka Gas		78,000		281
Prima Meat Packers		114,000		120
Rinnai		5,600		329
Rock Field		3,300		52
Ryoshoku		3,000		71
Saizeriya		14,800		285
Sankyo		8,600		455
Santen Pharmaceutical		16,500		571
Sapporo Hokuyo Holdings		40,000		185
Sega Sammy Holdings		48,900		747
Sekisui Chemical		82,000		496
Shikoku Electric Power		24,300		697
Shimachu		4,800		92
Shizuoka Gas		46,500		271
Sogo Medical		2,800		75
Studio Alice		9,800		89
Sumitomo Rubber Industries		110,100		1,074
Suzuken		37,100		1,227
Takeda Pharmaceutical		61,400		2,819
Tobu Railway		101,000		582
Toho Gas		335,000		1,656
Tokyo Electric Power		98,900		2,410
Tokyo Gas		895,000		4,061
TonenGeneral Sekiyu		36,000		333
Torii Pharmaceutical		3,200		59

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Global Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Toyo Suisan Kaisha		11,000	$	226
Trancom		1,300		21
Unicharm		82,800		3,330
USS		6,590		492
Wacoal Holdings		31,000		418
West Japan Railway		269		964
Yamato Holdings		117,100		1,416
Yamazaki Baking		54,000		658
				78,153
Jersey — 0.3%
Randgold Resources		10,640		1,068
				1,068
Netherlands — 1.5%
Koninklijke Ahold		91,220		1,231
Royal Dutch Shell, Cl A		63,375		1,918
Royal KPN		71,768		1,112
Teleplan International		102,775		283
Unilever		8,864		265
				4,809
New Zealand — 0.1%
Auckland International Airport		15,257		23
Fisher & Paykel Healthcare		24,293		53
Restaurant Brands New Zealand		21,157		39
Sky City Entertainment Group		26,706		56
				171
Portugal — 0.0%
Portucel Empresa Produtora de Pasta e Papel		24,712		73
				73
Singapore — 0.1%
Broadway Industrial Group		151,000		133
MobileOne		107,000		178
				311
Spain — 0.8%
Amadeus IT Holding, Cl A *		18,660		344
Ebro Foods		63,632		1,274
Inditex		10,574		841
Viscofan		8,161		270
				2,729
Sweden — 0.6%
Axfood		7,468		246
Electrolux		32,089		792
Swedish Match		34,999		935
				1,973
Switzerland — 1.9%
Bell Holding		13		21
Bossard Holding		293		27
Emmi		489		82
LifeWatch *		199		2
Nestle		24,211		1,297
Novartis		27,245		1,572
Pargesa Holding		2,224		163
Schindler Holding		460		49
Swisscom		4,878		1,979
Synthes		9,790		1,139
				6,331

Description	Shares		Market Value ($ Thousands)
United Kingdom — 3.7%
Associated British Foods		38,987	$	645
AstraZeneca		111,785		5,696
Fiberweb		4,598		5
GlaxoSmithKline		25,705		508
Greggs		23,568		176
Imperial Tobacco Group		12,919		386
Investec		62,851		504
JD Sports Fashion		2,922		38
LSL Property Services		9,779		36
Reckitt Benckiser Group		23,258		1,283
Robert Wiseman Dairies		15,028		76
Smith & Nephew		76,581		700
Tesco		103,319		690
TUI Travel		70,749		239
Unilever		9,166		266
WM Morrison Supermarkets		187,424		874
				12,122
United States — 26.4%
Abbott Laboratories		49,000		2,560
America Service Group		1,998		30
AmerisourceBergen		124,800		3,826
Amgen *		30,289		1,669
Annaly Capital Management †		253,000		4,453
AT&T		45,111		1,290
Biogen Idec *		12,792		718
Boston Beer, Cl A *		17,675		1,182
Bristol-Myers Squibb		46,794		1,268
C.R. Bard		30,700		2,500
Campbell Soup		99,337		3,551
Cardinal Health		16,800		555
Cephalon *		76,108		4,752
Chemed		5,885		335
Chevron		4,321		350
Clorox		40,200		2,684
Coca-Cola		11,838		693
ConAgra Foods		53,088		1,165
CSG Systems International *		6,625		121
Del Monte Foods		15,623		205
Dollar Tree *		27,121		1,322
Dun & Bradstreet		1,800		133
Dynamics Research *		6,300		65
Earthlink		25,144		229
Eli Lilly		36,945		1,349
Emergency Medical Services, Cl A *		4,890		260
Endo Pharmaceuticals Holdings *		22,100		735
ePlus *		1,500		32
Family Dollar Stores		80,949		3,575
Flowers Foods		47,824		1,188
Forest Laboratories *		54,598		1,689
General Mills		91,800		3,354
Hershey		22,382		1,065
Hormel Foods		64,281		2,867
Insmed *		136,175		98
InterDigital *		11,745		348
International Business Machines		9,500		1,274
J&J Snack Foods		2,568		108
JM Smucker		16,311		987
John B. Sanfilippo & Son *		7,000		93
Johnson & Johnson		19,738		1,223

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Global Managed Volatility Fund

September 30, 2010

Description	Shares/Face Amount ($Thousands)		Market Value ($ Thousands)
Kimberly-Clark		72,426	$	4,711
Laboratory Corp of America Holdings *		15,883		1,246
Lancaster Colony		13,669		649
Lorillard		25,590		2,055
Magellan Health Services *		31,723		1,499
Mantech International, Cl A *		2,910		115
MAXIMUS		7,874		485
Medidata Solutions *		7,125		137
Metropolitan Health Networks *		20,381		77
Microsoft		13,015		319
Miller Industries		7,271		98
Nash Finch		8,227		350
National Beverage		4,015		56
New York Community Bancorp		29,200		475
Newmont Mining		19,051		1,197
Oil-Dri Corp of America		3,429		74
Owens & Minor		5,117		146
Par Pharmaceutical *		43,241		1,257
PG&E		21,400		972
Primerica *		7,973		162
Procter & Gamble		20,000		1,199
Providence Service *		18,736		307
Raytheon		50,800		2,322
Reynolds American		7,800		463
Ross Stores		23,600		1,289
Rural *		15,531		132
Schiff Nutrition International		15,935		131
Seneca Foods, Cl A *		24,525		642
Sturm Ruger		5,854		80
TJX		79,144		3,532
TreeHouse Foods *		10,053		464
UGI		22,449		642
USA Mobility		27,208		436
Verizon Communications		38,221		1,246
Wal-Mart Stores		30,400		1,627
Watson Pharmaceuticals *		11,600		491
West Marine *		20,226		206
				87,190
Total Common Stock (Cost $278,866) ($ Thousands)				308,893
CASH EQUIVALENT — 4.8%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		15,950,954		15,951
Total Cash Equivalent (Cost $15,951) ($ Thousands)				15,951
U.S. TREASURY OBLIGATION (A) (B) — 0.4%
U.S. Treasury Bills
0.197%, 12/16/10	$	1,402		1,401
Total U.S. Treasury Obligation (Cost $1,402) ($ Thousands)				1,401
Total Investments — 98.7% (Cost $296,219) ($ Thousands)			$	326,245

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation (Depreciation) ($ Thousands)
DJ Euro Stoxx 50 Index		56		Dec-2010	$	(30	)
FTSE Index		18		Dec-2010		(6	)
Hang Seng Index		6		Oct-2010		—
S&P 500 Index E-MINI		124		Dec-2010		190
SPI 200 Index		7		Dec-2010		(11	)
					$	143

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for the derivative type during the period.

4 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Global Managed Volatility Fund

September 30, 2010

A summary of the outstanding forward foreign currency contracts held by the Fund at September 30, 2010, is as follows:

Counterparty	Maturity Date	Currency to Deliver (Thousands)		Currency to Receive (Thousands)			Unrealized Appreciation (Depreciation) ($Thousands)
Brown Brother Harriman	10/28/10	AUD	25,446		USD	24,385	$	(174	)
Brown Brother Harriman	10/28/10	CAD	39,659		USD	38,612		(34	)
Brown Brother Harriman	10/28/10	EUR	32,695		USD	44,044		(577	)
Brown Brother Harriman	10/28/10	GBP	9,438		USD	14,945		76
Brown Brother Harriman	10/28/10	JPY	7,517,496		USD	89,259		(764	)
Brown Brother Harriman	10/28/10	USD	139		AUD	145		—
Brown Brother Harriman	10/28/10	USD	73		CAD	75		—
Brown Brother Harriman	10/28/10	USD	377		EUR	278		2
Brown Brother Harriman	10/28/10	USD	651		JPY	54,579		2
							$	(1,469	)

Percentages are based on Net Assets of $330,590 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) The rate reported is the effective yield at the time of purchase.

(B) Security, or portion thereof, has been pledged as collateral on open futures contracts.

AUD — Australian Dollar

CAD — Canadian Dollar

Cl — Class

EUR — Euro

GBP — British Pound

JPY — Japanese Yen

L.P. — Limited Partnership

USD — United States Dollar

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	308,893	$	—	$	—	$	308,893
Cash Equivalent		15,951		—		—		15,951
U.S. Treasury Obligation		—		1,401		—		1,401
Total Investments in Securities	$	324,844	$	1,401	$	—	$	326,245

Other Financial Instruments	Level 1		Level 2			Level 3		Total
Futures Contracts*	$	143	$	—		$	—	$	143
Forwards*		—		(1,469	)		—		(1,469	)
Total Other Financial Instruments	$	143	$	(1,469	)	$	—	$	(1,326	)

* Futures contracts and Forwards are valued at the unrealized appreciation (depreciation) on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

5 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
COMMON STOCK — 95.8%
Consumer Discretionary — 10.1%
Advance Auto Parts		14,000	$	821
Aeropostale *		15,500		360
Amazon.com *		2,356		370
Autoliv		8,000		523
Buckle		3,800		101
Burger King Holdings		33,100		790
Career Education *		26,000		558
Carter’s *		27,700		730
Choice Hotels International		18,600		678
Cinemark Holdings		43,300		697
DeVry		13,200		650
DIRECTV, Cl A *		26,400		1,099
Discovery Communications, Cl A *		24,600		1,071
Discovery Communications, Cl C *		100,967		3,856
DreamWorks Animation SKG, Cl A *		18,400		587
GameStop, Cl A *		35,300		696
Genuine Parts		14,100		629
Gildan Activewear *		17,100		480
H&R Block		63,800		826
ITT Educational Services *		13,600		956
Panera Bread, Cl A *		7,400		656
priceline.com *		13,419		4,674
Regal Entertainment Group, Cl A		50,500		663
Shaw Communications, Cl B		23,700		522
Strayer Education		4,700		820
				23,813
Consumer Staples — 24.9%
Altria Group		146,060		3,508
Brown-Forman, Cl B		34,571		2,131
Campbell Soup		23,691		847
Church & Dwight		52,657		3,420
Clorox		24,049		1,605
Coca-Cola		44,799		2,622
Colgate-Palmolive		37,890		2,912
Dean Foods *		67,200		686
Flowers Foods		28,100		698
General Mills		102,638		3,750
Hansen Natural *		12,100		564
Hershey		29,694		1,413
HJ Heinz		30,420		1,441
Hormel Foods		72,027		3,213
JM Smucker		33,729		2,042
Kellogg		66,226		3,345
Kimberly-Clark		49,057		3,191
Kroger		13,415		291
Lorillard		39,781		3,195
McCormick		56,064		2,357
PepsiCo		26,231		1,743
Philip Morris International		65,353		3,661
Procter & Gamble		38,153		2,288
Ralcorp Holdings *		11,700		684
Reynolds American		58,175		3,455
Ruddick		21,900		759
Wal-Mart Stores		57,884		3,098
				58,919
Energy — 3.2%
Chevron		12,400		1,005

Description	Shares		Market Value ($ Thousands)
Dresser-Rand Group *		14,800	$	546
Enbridge		18,300		957
Exxon Mobil		16,700		1,032
FMC Technologies *		4,300		293
Imperial Oil		11,500		435
Murphy Oil		8,000		495
PetroHawk Energy *		51,300		828
Range Resources		15,200		580
SEACOR Holdings *		4,400		375
Teekay Shipping		10,700		286
TransCanada		22,500		835
				7,667
Financials — 11.6%
Alleghany *		1,600		485
Allied World Assurance Holdings		16,600		939
Arch Capital Group *		5,300		444
Brown & Brown		21,800		440
Capitol Federal Financial		106,124		2,621
Commerce Bancshares		57,523		2,162
Corporate Office Properties Trust †		18,000		672
Erie Indemnity, Cl A		16,600		931
Essex Property Trust †		7,100		777
Federated Investors, Cl B		28,300		644
First Citizens BancShares, Cl A		3,900		723
Fulton Financial		33,900		307
Health Care †		19,100		904
Home Properties †		13,500		714
Hudson City Bancorp		59,100		725
MFA Financial †		43,700		333
NASDAQ OMX Group *		17,400		338
PartnerRe		4,000		321
People’s United Financial		211,032		2,762
Platinum Underwriters Holdings		7,100		309
ProAssurance *		7,600		438
Prosperity Bancshares		17,500		568
Public Storage †		4,000		388
Realty Income †		27,500		927
RenaissanceRe Holdings		13,100		785
Senior Housing Properties Trust †		21,100		496
Tanger Factory Outlet Centers †		15,900		750
TFS Financial		224,667		2,065
UMB Financial		13,500		479
Washington Real Estate Investment Trust †		24,100		765
Wesco Financial		5,938		2,127
				27,339
Health Care — 16.4%
Abbott Laboratories		53,396		2,789
Alexion Pharmaceuticals *		49,940		3,214
Allscripts Healthcare Solutions *		133,383		2,464
AmerisourceBergen		101,478		3,111
Amgen *		10,700		589
Becton Dickinson		15,679		1,162
C.R. Bard		26,277		2,140
Celgene *		8,700		501
Dentsply International		63,758		2,038
Edwards Lifesciences *		28,788		1,930
Eli Lilly		29,571		1,080
Emergency Medical Services, Cl A *		14,700		783

1 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Managed Volatility Fund

September 30, 2010

Description	Shares		Market Value ($ Thousands)
Endo Pharmaceuticals Holdings *		26,400	$	878
Genzyme *		12,500		885
Henry Schein *		48,387		2,835
Johnson & Johnson		47,946		2,971
Laboratory Corp of America Holdings *		23,899		1,874
LifePoint Hospitals *		11,200		393
McKesson		13,900		859
Myriad Genetics *		30,100		494
Owens & Minor		24,600		700
Patterson		28,700		822
Pfizer		53,040		911
Quest Diagnostics		9,259		467
Techne		33,624		2,076
United Therapeutics *		13,600		762
				38,728
Industrials — 4.6%
Alliant Techsystems *		11,600		875
C.H. Robinson Worldwide		13,100		916
Clarcor		8,800		340
FTI Consulting *		16,400		569
Gardner Denver		11,400		612
KBR		31,300		771
Landstar System		16,500		637
Lennox International		18,600		775
Lincoln Electric Holdings		13,500		781
Nordson		7,700		567
Raytheon		10,200		466
Rollins		29,800		697
Stericycle *		43,078		2,993
				10,999
Information Technology — 9.2%
Activision Blizzard		76,900		832
Adtran		24,500		865
Applied Materials		35,958		420
Automatic Data Processing		9,413		396
CGI Group, Cl A *		22,100		332
Cree *		24,816		1,347
Diebold		10,100		314
Flir Systems *		10,200		262
Google, Cl A *		6,136		3,226
Harris		18,500		819
IAC *		135,677		3,564
Ingram Micro, Cl A *		41,500		700
International Business Machines		26,347		3,534
Microchip Technology		33,447		1,052
National Instruments		12,748		416
NeuStar, Cl A *		23,600		587
WebMD Health, Cl A *		28,403		1,417
Zebra Technologies, Cl A *		48,247		1,623
				21,706
Materials — 2.8%
Aptargroup		15,400		704
Compass Minerals International		9,800		751
Greif, Cl A		12,700		747
Intrepid Potash *		27,500		717
Newmont Mining		31,443		1,975
Royal Gold		18,581		926
Silgan Holdings		24,800		786
				6,606

Description	Shares/Face Amount ($ Thousands)		Market Value ($ Thousands)
Telecommunication Services — 2.3%
AT&T		37,900	$	1,084
BCE		20,700		673
CenturyTel		23,974		946
MetroPCS Communications *		86,300		903
SBA Communications, Cl A *		17,400		701
Telephone & Data Systems		4,700		154
Verizon Communications		30,300		987
				5,448
Utilities — 10.7%
AGL Resources		19,400		744
Alliant Energy		23,300		847
American Water Works		27,200		633
Atmos Energy		21,600		632
Consolidated Edison		25,756		1,242
DTE Energy		16,900		776
Edison International		23,600		812
Energen		6,500		297
Great Plains Energy		41,200		779
Hawaiian Electric Industries		58,670		1,322
Idacorp		21,600		776
New Jersey Resources		8,700		341
NSTAR		92,552		3,642
OGE Energy		64,112		2,556
Pepco Holdings		17,400		324
PG&E		12,300		559
Piedmont Natural Gas		24,800		719
SCANA		45,750		1,845
Southern		33,768		1,257
TECO Energy		42,300		732
Vectren		69,471		1,797
WGL Holdings		15,500		586
Wisconsin Energy		35,013		2,024
				25,242
Total Common Stock (Cost $192,560) ($ Thousands)				226,467
CASH EQUIVALENT — 5.9%
SEI Daily Income Trust, Prime Obligation Fund, Cl A, 0.150% ** ††		13,946,907		13,947
Total Cash Equivalent (Cost $13,947) ($ Thousands)				13,947
U.S. TREASURY OBLIGATION (A) (B) — 0.3%
U.S. Treasury Bills
0.191%, 12/16/10	$	622		622
Total U.S. Treasury Obligation (Cost $622) ($ Thousands)				622
Total Investments — 102.0% (Cost $207,129) ($ Thousands)			$	241,036

2 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Schedule of Investments

Tax-Managed Managed Volatility Fund

September 30, 2010

A summary of the open futures contracts held by the Fund at September 30, 2010, is as follows:

Type of Contract	Number of Contracts Long (Short)		Expiration Date		Unrealized Appreciation ($ Thousands)
S&P 500 Index E-MINI		71		Dec-2010	$	101

For the period ended September 30, 2010, the total amount of all open futures contracts, as presented in the table above, are representative of the volume of activity for this derivative type during the period.

Percentages are based on Net Assets of $236,402 ($ Thousands).

* Non-income producing security.

** Rate shown is the 7-day effective yield as of September 30, 2010.

† Real Estate Investment Trust.

†† Investment in Affiliated Security.

(A) The rate reported is the effective yield at the time of purchase.

(B) Security, or portion thereof, has been pledged as collateral on open futures contracts.

Cl — Class

The following is a summary of the inputs used as of September 30, 2010 in valuing the Fund’s investments carried at value ($ Thousands):

Investments in Securities	Level 1		Level 2		Level 3		Total
Common Stock	$	226,467	$	—	$	—	$	226,467
Cash Equivalent		13,947		—		—		13,947
U.S. Treasury Obligation		—		622		—		622
Total Investments in Securities	$	240,414	$	622	$	—	$	241,036

Other Financial Instruments	Level 1		Level 2		Level 3		Total
Futures Contracts*	$	101	$	—	$	—	$	101

* Futures contracts are valued at the unrealized appreciation on the instrument.

During the year ended September 30, 2010, there have been no significant transfers between Level 1 and Level 2 assets and liabilities.

During the year ended September 30, 2010, there have been no significant transfers between Level 2 and Level 3 assets and liabilities.

3 SEI Institutional Managed Trust / Annual Report / September 30, 2010

Report of Independent Registered Public Accounting Firm

To the Board of Trustees and Shareholders

SEI Institutional Managed Trust:

We have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the financial statements of SEI Institutional Managed Trust, comprising Large Cap Fund, Large Cap Value Fund, Large Cap Growth Fund, Tax-Managed Large Cap Fund, S&P 500 Index Fund, Small Cap Fund, Small Cap Value Fund, Small Cap Growth Fund, Tax-Managed Small Cap Fund, Mid-Cap Fund, U.S. Managed Volatility Fund, Global Managed Volatility Fund, Tax-Managed Managed Volatility Fund, Real Estate Fund, Enhanced Income Fund, Core Fixed Income Fund, U.S. Fixed Income Fund, High Yield Bond Fund, Real Return Fund, and Multi-Strategy Alternative Fund (collectively, the “Funds”) as of and for the year or period ended September 30, 2010, and have issued our report thereon dated November 29, 2010 (which report and financial statements are included in Item 1 of this Certified Shareholder Report on Form N-CSR). Our audits included an audit of the Large Cap Fund, Large Cap Value Fund, Large Cap Growth Fund, Tax-Managed Large Cap Fund, S&P 500 Index Fund, Small Cap Fund, Small Cap Value Fund, Small Cap Growth Fund, Tax-Managed Small Cap Fund, Mid-Cap Fund, U.S. Managed Volatility Fund, Global Managed Volatility Fund, and Tax-Managed Managed Volatility Fund’s schedules of investments in securities (the “Schedules”) as of September 30, 2010 appearing in Item 6 of this Form N-CSR. These Schedules are the responsibility of the Funds’ management. Our responsibility is to express an opinion on these Schedules based on our audits.

In our opinion, the Schedules referred to above, when read in conjunction with the financial statements of the Funds referred to above, present fairly, in all material respects, the information set forth therein.

KPMG LLP

Philadelphia, Pennsylvania

November 29, 2010

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable.

Item 8. Managers of Closed-End Management Investment Companies

Not applicable.

Item 9. Purchasers of Equity Securities by Closed-End Management Company and Affiliated Purchasers.

Not applicable.

Item 10. Submission of Matters to a Vote of Security Holders.

The Registrant has a standing nominating committee (the “Committee”) currently consisting of the independent trustees. The Committee is responsible for evaluating and recommending nominees for election to the Registrant’s board of trustees (the “Board”). Pursuant to the Committee’s charter, adopted on June 18, 2004 and as amended, the Committee will review all shareholder recommendations for nominations to fill vacancies on the Board if such recommendations are submitted in writing and addressed to the Committee at the Registrant’s office.

Item 11. Controls and Procedures.

(a) The Registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the Registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “1940 Act”)) are effective, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 as of a date within 90 days of the filing date of this report.

(b) There were no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the Registrants internal control over financial reporting.

Items 12. Exhibits.

(a)(1) Code of Ethics attached hereto.

(a)(2) A separate certification for the principal executive officer and the principal financial officer of the Registrant as required by Rule 30a-2(a) under the 1940 Act, as amended (17 CFR 270.30a-2(a)), are filed herewith.

(b) Officer certifications as required by Rule 30a-2(b) under the Act of 1940, as amended (17 CFR 270.30a-2(b)) also accompany this filing as an exhibit.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SEI Institutional Managed Trust
By	/S/    ROBERT A. NESHER
	Robert A. Nesher, President & CEO

Date: November 29, 2010

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

By	/S/    ROBERT A. NESHER
	Robert A. Nesher, President & CEO

Date: November 29, 2010

By	/S/    STEPHEN F. PANNER
	Stephen F. Panner, Controller & CFO

Date: November 29, 2010

EX-99.CODE

SEI LIQUID ASSET TRUST

SEI TAX EXEMPT TRUST

SEI DAILY INCOME TRUST

SEI INSTITUTIONAL MANAGED TRUST

SEI INSTITUTIONAL INTERNATIONAL TRUST

SEI ASSET ALLOCATION TRUST

SEI INSTITUTIONAL INVESTMENTS TRUST

SEI ALPHA STRATEGY PORTFOLIOS, L.P.

Financial Officer Code of Ethics

I. Introduction

The reputation and integrity of SEI Liquid Asset Trust, SEI Tax Exempt Trust, SEI Daily Income Trust, SEI Institutional Managed Trust, SEI Institutional International Trust, SEI Asset Allocation Trust, SEI Institutional Investments Trust, and SEI Alpha Strategy Portfolios, L.P. (each a “Trust” and, collectively, the “Trusts”) are valuable assets that are vital to the each Trust’s success. The Trusts’ senior financial officers (“SFOs”) are responsible for conducting the Trusts’ business in a manner that demonstrates a commitment to the highest standards of integrity. The Trusts’ SFOs include the principal executive officer, the principal financial officer, comptroller or principal accounting officer, and any person who performs a similar function.

The Sarbanes-Oxley Act of 2002 (the “Act”) effected sweeping corporate disclosure and financial reporting reform on public companies, including mutual funds, to address corporate malfeasance and assure investors that the companies in which they invest are accurately and completely disclosing financial information. Under the Act, all public companies (including the Trusts) must either have a code of ethics for their SFOs, or disclose why they do not. The Act was intended to foster corporate environments which encourage employees to question and report unethical and potentially illegal business practices. Each Trust has chosen to adopt this Financial Officer Code of Ethics (the “Code”) to encourage its SFOs to act in a manner consistent with the highest principles of ethical conduct.

II. Purposes of the Code

The purposes of this Code are:

• To promote honest and ethical conduct by each Trust’s SFOs, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships;

• To assist each Trust’s SFOs in recognizing and avoiding conflicts of interest, including disclosing to an appropriate person any material transaction or relationship that reasonably could be expected to give rise to such a conflict;

• To promote full, fair, accurate, timely, and understandable disclosure in reports and documents that the Trusts file with, or submit to, the SEC and in other public communications made by the Trusts;

• To promote compliance with applicable laws, rules and regulations;

• To encourage the prompt internal reporting to an appropriate person of violations of this Code; and

• To establish accountability for adherence to this Code.

III. Questions about this Code

Each Trust’s compliance officer designated to oversee compliance with the Trust’s Code of Ethics adopted pursuant to Rule 17j-1 shall serve as Compliance Officer for the implementation and administration of this Code. You should direct your questions about this Code to the Compliance Officer.

IV. Conduct Guidelines

Each Trust has adopted the following guidelines under which the Trust’s SFOs must perform their official duties and conduct the business affairs of the Trust.

1. Ethical and honest conduct is of paramount importance. Each Trust’s SFOs must act with honesty and integrity and avoid violations of this Code, including the avoidance of actual or apparent conflicts of interest with the Trust in personal and professional relationships.

2. SFOs must disclose material transactions or relationships. Each Trust’s SFOs must disclose to the Compliance Officer any actual or apparent conflicts of interest the SFO may have with the Trust that reasonably could be expected to give rise to any violations of this Code. Such conflicts of interest may arise as a result of material transactions or business or personal relationships to which the SFO may be a party. If it is not possible to disclose the matter to the Compliance Officer, it should be disclosed to the Trust’s Chief Financial Officer, Chief Executive Officer or another appropriate person. In addition to disclosing any actual or apparent conflicts of interest in which an SFO is personally involved, the Trusts’ SFOs have an obligation to report any other actual or apparent conflicts which they discover or of which they otherwise become aware. If you are unsure whether a particular fact pattern gives rise to a conflict of interest, or whether a particular transaction or relationship is “material,” you should bring the matter to the attention of the Compliance Officer.

3. Standards for quality of information shared with service providers of the Trusts. Each Trust’s SFOs must at all times seek to provide information to the Trust’s service providers (adviser, administrator, outside auditor, outside counsel, custodian, etc.) that is accurate, complete, objective, relevant, timely, and understandable.

4. Standards for quality of information included in periodic reports. Each Trust’s SFOs must at all times endeavor to ensure full, fair, timely, accurate, and understandable disclosure in the Trust’s periodic reports.

5. Compliance with laws. Each Trust’s SFOs must comply with the federal securities laws and other laws and rules applicable to the Trusts, such as the Internal Revenue Code.

6. Standard of care. Each Trust’s SFOs must at all times act in good faith and with due care, competence and diligence, without misrepresenting material facts or allowing your independent judgment to be subordinated. Each Trust’s SFOs must conduct the affairs of the Trust in a responsible manner, consistent with this Code.

7. Confidentiality of information. Each Trust’s SFOs must respect and protect the confidentiality of information acquired in the course of their professional duties, except when authorized by the Trust to disclose it or where disclosure is otherwise legally mandated. You may not use confidential information acquired in the course of your work for personal advantage.

8. Sharing of information and educational standards. Each Trust’s SFOs should share information with relevant parties to keep them informed of the business affairs of the Trust, as appropriate, and maintain skills important and relevant to the Trust’s needs.

9. Promote ethical conduct. Each Trust’s SFOs should at all times proactively promote ethical behavior among peers in your work environment.

10. Standards for recordkeeping. Each Trust’s SFOs must at all times endeavor to ensure that the Trust’s financial books and records are thoroughly and accurately maintained to the best of their knowledge in a manner consistent with applicable laws and this Code.

V. Waivers of this Code

You may request a waiver of a provision of this Code by submitting your request in writing to the Compliance Officer for appropriate review. For example, if a family member works for a service provider that prepares a Trust’s financial statements, you may have a potential conflict of interest in reviewing those statements and should seek a waiver of this Code to review the work. An executive officer of each Trust, or another appropriate person (such as a designated Board or Audit Committee member), will decide whether to grant a waiver. All waivers of this code must be disclosed to the applicable Trust’s shareholders to the extent required by SEC rules.

VI. Affirmation of the Code

   Upon adoption of the Code, each Trust’s SFOs must affirm in writing that they have received, read and understand the Code, and annually thereafter must affirm that they have complied with the requirements of the Code. To the extent necessary, each Trust’s Compliance Officer will provide guidance on the conduct required by this Code and the manner in which violations or suspected violations must be reported and waivers must be requested.

VII. Reporting Violations

   In the event that an SFO discovers or, in good faith, suspects a violation of this Code, the SFO must immediately report the violation or suspected violation to the Compliance Officer. The Compliance Officer may, in his discretion, consult with another member of the Trust’s senior management or the Board in determining how to address the suspected violation. For example, a Code violation may occur when a periodic report or financial statement of a Trust omits a material fact, or is technically accurate but, in the view of the SFO, is written in a way that obscures its meaning.

   SFOs who report violations or suspected violations in good faith will not be subject to retaliation of any kind. Reported violations will be investigated and addressed promptly and will be treated as confidential to the extent possible.

VIII. Violations of the Code

   Dishonest or unethical conduct or conduct that is illegal will constitute a violation of this Code, regardless of whether this Code specifically refers to such particular conduct. A violation of this Code may result in disciplinary action, up to and including removal as an SFO of the Trust. A variety of laws apply to the Trusts and their operations, including the Securities Act of 1933, the Investment Company Act of 1940, state laws relating to duties owed by Trust officers, and criminal laws. The Trusts will report any suspected criminal violations to the appropriate authorities, and will investigate, address and report, as appropriate, non-criminal violations.

EX-99.CERT

Certification

Pursuant to Section 302

of the Sarbanes-Oxley Act of 2002

I, Robert A. Nesher, certify that:

1. I have reviewed this report on Form N-CSR of SEI Institutional Managed Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the Registrant as of, and for, the periods presented in this report;

4. The Registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940)for the Registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

(d) Disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5. The Registrant’s other certifying officer(s) and I have disclosed to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize, and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: November 29, 2010

/s/ Robert A. Nesher

Robert A. Nesher

President & CEO

Certification

Pursuant to Section 302

of the Sarbanes-Oxley Act of 2002

I, Stephen F. Panner, certify that:

1. I have reviewed this report on Form N-CSR of SEI Institutional Managed Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the Registrant as of, and for, the periods presented in this report;

4. The Registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940)for the Registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

(d) Disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5. The Registrant’s other certifying officer(s) and I have disclosed to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize, and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: November 29, 2010

/s/ Stephen F. Panner

Stephen F. Panner

Controller & CFO

EX-99.906CERT

CERTIFICATION

Pursuant to Section 906

of the Sarbanes-Oxley Act of 2002

The undersigned, the Chief Executive Officer of SEI Institutional Managed Trust (the “Fund”), with respect to the Fund’s Form N-CSR for the fiscal year ended September 30, 2010 as filed with the Securities and Exchange Commission, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1. such Form N-CSR fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. the information contained in such Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Fund.

Dated: November 29, 2010

/s/ Robert A. Nesher

Robert A. Nesher

CERTIFICATION

Pursuant to Section 906

of the Sarbanes-Oxley Act of 2002

The undersigned, the Controller & CFO of SEI Institutional Managed Trust (the “Fund”), with respect to the Fund’s Form N-CSR for the fiscal year ended September 30, 2010 as filed with the Securities and Exchange Commission, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1. such Form N-CSR fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. the information contained in such Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Fund.

Dated: November 29, 2010

/s/ Stephen F. Panner

Stephen F. Panner