N-CSRS 1 d491943dncsrs.htm PIONEER CORE TRUST I PIONEER CORE TRUST I

 

 

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 811-23613

 

 

Pioneer Core Trust I

(Exact name of registrant as specified in charter)

 

 

60 State Street, Boston, MA 02109

(Address of principal executive offices) (ZIP code)

 

 

Christopher J. Kelley, Amundi Asset Management, Inc.,

60 State Street, Boston, MA 02109

(Name and address of agent for service)

 

 

Registrant’s telephone number, including area code: (617) 742-7825

Date of fiscal year end: August 31, 2023

Date of reporting period: September 1, 2022 through February 28, 2023

 

 

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507.

 

 

 


ITEM 1. REPORTS TO STOCKHOLDERS.


Pioneer High Income Municipal Portfolio
Semiannual Report  |  February 28, 2023


visit us: www.amundi.com/us




President’s Letter
Dear Investors,
On February 13, 2023, Amundi US celebrated the 95th anniversary of Pioneer Fund, the second-oldest mutual fund in the United States. We recognized the anniversary with ringing of the closing bell at the New York Stock Exchange, which seemed fitting for this special milestone.
Pioneer Fund was launched on February 13, 1928 by Phil Carret, the father of value investing and a leading innovator in the asset management industry. Mr. Carret began investing in the 1920s and founded Pioneer Investments (now Amundi US) in 1928, and was one of the first investors to realize he could uncover value through rigorous, innovative, fundamental research techniques.
Consistent with Mr. Carret’s investment approach and employing many of the same techniques utilized in the 1920s, Amundi US's portfolio managers have adapted Mr. Carret’s philosophy to a new age of “Active” investing.
The last few years have seen investors face some unprecedented challenges, from a global pandemic that shuttered much of the world’s economy for months, to geopolitical strife, to rising inflation that has reached levels not seen in decades. Now, more than ever, Amundi US believes active management – that is, making active investment decisions across all of our portfolios – can help mitigate the risks during periods of market volatility.
At Amundi US, active management begins with our own fundamental, bottom-up research process. Our team of dedicated research analysts and portfolio managers analyzes each security under consideration, communicating frequently with the management teams of the companies and other entities issuing the securities, and working together to identify those securities that we believe best meet our investment criteria for our family of funds. Our risk management approach begins with each security under consideration, as we strive to develop a deep understanding of the potential opportunity, while considering any potential risk factors.
Today, as investors, we have many options. It is our view that active management can serve investors well, not only when markets are thriving, but also during periods of market stress. As you consider your long-term investment goals, we encourage you to work with your financial professional to develop an investment plan that paves the way for you to pursue both your short-term and long-term goals.
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We greatly appreciate the trust you have placed in us and look forward to continuing to serve you in the future.
Lisa M. Jones
Head of the Americas, President and CEO of US
Amundi Asset Management US, Inc.
April 2023
Any information in this report to investors regarding market or economic trends or the factors influencing the Fund’s historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/233


Portfolio Management Discussion  |  2/28/23
In the following interview, Jonathan Chirunga and David Eurkus discuss the factors that influenced the performance of Pioneer High Income Municipal Portfolio during the six-month period ended February 28, 2023. Mr. Chirunga, Managing Director, Director of High-Yield Municipal Bonds, and a portfolio manager at Amundi Asset Management US, Inc. (Amundi US), is responsible for the day-to-day management of the Portfolio, along with Mr. Eurkus, Managing Director, Director of Municipals, and a portfolio manager at Amundi US.
Q How did the Portfolio perform during the six-month period ended February 28, 2023?
A Pioneer High Income Municipal Portfolio returned -1.35% during the six-month period ended February 28, 2023, while the Portfolio’s benchmark, the Bloomberg US Municipal High Yield Bond Index (the Bloomberg Index), returned -1.77%. During the same period, the average return of the 195 mutual funds in Morningstar’s High-Yield Municipal Funds category was -1.66%.
Q How would you describe the investment environment for municipal bonds during the six-month period ended February 28, 2023?
A Municipal bonds posted negative returns for the six-month period, with the adverse effect of falling prices offsetting the contribution to performance from income generation. During the period, the municipal market experienced its weakest performance in September and October of 2022, when the combination of robust economic growth data and rising inflation fueled expectations that the US Federal Reserve (Fed) would need to continue raising interest rates aggressively in an attempt to curb the high inflation readouts. The Fed indeed raised the target range for the federal funds rate by three-quarters of a percentage point at its meetings in both late-September and early November, bringing the federal funds target to a range of 3.75% ‒ 4.00%. In comparison, the target range for the federal funds rate was pegged at a range of 0.00% ‒ 0.25% at the beginning of 2022.
  The tax-exempt market rallied off its October lows over the following three months, as inflation began to decline from its peak of mid-2022. Investors started to look ahead to the point at which the Fed could pause its rate-hiking cycle, a hope that was supported by the US central bank’s decision to raise interest
4Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


  rates by only a quarter-point at its February 2, 2023 meeting. Municipal bonds, at their peak in early February, had recaptured nearly all of the price decline they had experienced in the first two months of the six-month period. However, the market declined as the month progressed, amid concerns that solid economic growth and persistently high inflation would prompt the Fed to keep rates “higher for longer.”
  High-yield municipals underperformed the investment-grade tax-exempt market for the six-month period. The investment-grade municipal market, as measured by the Bloomberg Municipal Bond Index, managed to generate a gain 0.66% for the period, while the high-yield municipal market, as measured by the Portfolio’s benchmark, returned -1.77%. The difference in returns largely reflected investors’ depressed appetite for riskier assets in an uncertain environment. In addition, high-yield municipal funds continued to experience outflows over the six-month period. Despite those headwinds, the fundamentals within the municipal market remained firm, driven by the continued post-COVID reopening of the economy, steady tax receipts, and the ongoing benefits of the substantial federal aid provided during the pandemic in 2020-2021. The default rate in the municipal market has remained very low, illustrating, in our view, the gap between the price performance of municipal bonds and the underlying health of municipal issuers. Notably, some previously underperforming municipal issuers received further upgrades to their credit ratings from the major agencies during the six-month period.
Q What factors affected the Portfolio’s performance relative to the benchmark Bloomberg Index during the six-month period ended February 28, 2023?
A Sector allocation results and individual security selection results both aided the Portfolio’s benchmark-relative performance for the six-month period. In particular, the Portfolio’s relative returns benefited from our decision to mostly avoid investments in the traditional senior living sector (continuing care retirement communities), which underperformed. On the other hand, an underweight to Puerto Rico issues detracted from the Portfolio’s relative results.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/235


  At the individual security level, portfolio holdings of Phoenix (Arizona) Industrial Development Authority multifamily housing revenue bonds and Chicago (Illinois) general obligation debt contributed positively to the Portfolio’s relative performance. Conversely, exposure to bonds issued by the Massachusetts State Development Finance Agency (heath care revenue bonds), and Capital Trust Agency (Florida senior living revenue bonds), detracted from the Portfolio’s relative returns for the six-month period.
Q Did the Portfolio have any exposure to derivative securities during the six-month period ended February 28, 2023?
A No, the Portfolio had no exposure to derivatives during the six-month period.
Q What were some notable aspects of the Portfolio’s positioning as of February 28, 2023?
A At the end of the period, the Portfolio was overweight versus the Bloomberg Index to charter schools, a sector where we saw both above-average yields as well as an opportunity for quality individual security selection. The Portfolio was also overweight to the tobacco sector, due to the higher liquidity and attractive yields of tobacco (Master Settlement Agreement) bonds. Tobacco bonds are revenue bonds sold by certain states, backed by annual payments to the government entities by tobacco companies in connection with the settlement of litigation claims. We have found tobacco bonds to be attractive investments, not only for their potential to enhance performance, but also for the benefits received by the settling states that issue tobacco bonds since the establishment of the Master Settlement Agreement between the settling states and the tobacco-related companies several years ago. Those benefits have included: substantial funding for the advancement of public health; the implementation of important tobacco-related public health measures; and funding towards establishment of a national foundation dedicated to significantly reducing the use of tobacco products among youths.
  Meanwhile, the Portfolio was underweight to Puerto Rico bonds, due to our concerns regarding the Commonwealth’s sensitivity to economic cycles, the ebbs and flows of the tourism industry, and hurricanes. As mentioned earlier, we have also maintained low
6Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


  portfolio exposure to continuing care retirement communities (CCRCs), given those issuers’ need to maintain high occupancy in order to generate revenues. Since the ongoing occupancy rates of CCRCs have often been tied to the performance of the overall housing market, the sector, historically, has been vulnerable to potential weakness in the residential real estate market.
  In terms of changes made during the six-month period, the most notable positioning shift was our decision to increase the Portfolio’s weighting in the hospital sector, as we were able to identify some valuation opportunities in some issuers within the sector that we had been watching for a while.
Q What is your investment outlook?
A Although we think continued uncertainty in the macroeconomic picture could lead to further volatility in the high-yield municipal market, we would view such an outcome as a chance to capture opportunities in select municipal securities. On the positive side, current expectations are for supply in the municipal space to remain shallow to moderate. Coupled with heightened demand for tax-efficient investments, we believe lower supply and higher yields could translate to attractive valuations within high-yield municipals. Potential risk factors to this outlook, in our view, include continued interest-rate increases by the Fed, rising unemployment (or underemployment), and the possibility that inflation could remain elevated for longer than expected.
  As is always the case, headline news events have had a minimal effect on our day-to-day approach to managing the Portfolio. Our goal is to invest the Portfolio in what we believe are fundamentally sound credits with attractive yields, while maintaining an appropriate level of portfolio diversification*. We also seek to avoid experiencing defaults in the Portfolio through our emphasis on fundamental research. We believe this steady, long-term approach remains the most effective way to identify opportunities and to help minimize the risk associated with investing in the high-yield municipal market.
* Diversification does not assure a profit nor protect against loss.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/237


Please refer to the Schedule of Investments on pages 15-32 for a full listing of securities.
All investments are subject to risk, including the possible loss of principal. In the past several years, financial markets have experienced increased volatility and heightened uncertainty. The market prices of securities may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic, political, or regulatory conditions, recessions, inflation, changes in interest or currency rates, lack of liquidity in the bond markets, the spread of infectious illness or other public health issues, armed conflict including Russia's military invasion of Ukraine, sanctions against Russia, other nations or individuals or companies and possible countermeasures, market disruptions caused by tariffs, trade disputes or other government actions, or adverse investor sentiment. These conditions may continue, recur, worsen or spread.
Investments in high-yield or lower-rated securities are subject to greater-than-average price volatility, illiquidity and possibility of default.
When interest rates rise, the prices of fixed-income securities held by the Portfolio will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities held by the Portfolio will generally rise.
Investments in the Portfolio are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations.
The Portfolio’s investments, payment obligations and financing terms may be based on floating rates, such as LIBOR (London Interbank Offered Rate), or SOFR (Secured Overnight Financing Rate). Plans are underway to phase out the use of LIBOR. There remains uncertainty regarding the nature of any replacement rate and the impact of the transition from LIBOR on the Portfolio, issuers of instruments in which the Portfolio invests, and financial markets generally.
Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Portfolio would experience a decline in income and lose the opportunity for additional price appreciation.
The value of municipal securities can be adversely affected by changes in financial condition of municipal issuers, lower revenues, and regulatory and political developments.
A portion of income may be subject to local, state, federal, and/or alternative minimum tax. Capital gains, if any, are subject to a capital gains tax.
8Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


The Portfolio may use derivatives, such as options, futures, inverse floating rate obligations, swaps, and others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Portfolio performance. Derivatives may have a leveraging effect on the Portfolio.
This material must be preceded or accompanied by the Portfolio's current registration statement. Before investing, consider the product's investment objectives, risks, charges, and expenses. Read it carefully.
Any information in this report to investors regarding market or economic trends or the factors influencing the Portfolio's historical or future performance are statements of opinion as of the date of this report. Past performance is not a guarantee of future results.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/239


Portfolio Summary  |  2/28/23 
Portfolio Diversification

(As a percentage of total investments)*
State Diversification

(As a percentage of total investments)*
10Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


10 Largest Holdings

(As a percentage of total investments)*
1. Buckeye Tobacco Settlement Financing Authority, Senior Class 2, Series B2, 5.00%, 6/1/55 4.45%
2. Golden State Tobacco Securitization Corp., Series A1, 4.214%, 6/1/50 3.70
3. Tobacco Settlement Financing Corp., Series B1, 5.00%, 6/1/47 2.77
4. City of Oroville, Oroville Hospital, 5.25%, 4/1/49 2.39
5. Arkansas Development Finance Authority, Big River Steel Project, 4.50%, 9/1/49 (144A) 2.22
6. City of Oroville, Oroville Hospital, 5.25%, 4/1/54 2.15
7. New York Counties Tobacco Trust IV, Settlement pass through, Series A, 5.00%, 6/1/45 2.11
8. California Statewide Communities Development Authority, Loma Linda University Medical Center, Series A, 5.25%, 12/1/56 (144A) 2.10
9. TSASC, Inc., Series B, 5.00%, 6/1/48 1.87
10. Dominion Water & Sanitation District, 5.875%, 12/1/52 1.82
   
* Excludes short-term investments and all derivative contracts except for options purchased. The Portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any securities.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2311


Performance Update  |  2/28/23
Investment Returns

The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer High Income Municipal Portfolio during the periods shown, compared to that of the Bloomberg U.S. Municipal High Yield Bond Index.
Average Annual Total Return
(As of February 28, 2023)
Period Fund Bloomberg
U.S.
Municipal
High Yield
Bond Index
Life-of-Fund
(12/21/20)
0.00% -2.33%
1 Year -8.69 -9.35
Value of $10,000 Investment
 Performance of the Portfolio shown in the graph above is from the inception of the Portfolio on 12/21/20 through 2/28/23. Index information shown in the graph above is from 12/31/20 through 2/28/23.
The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and interests, when withdrawn may be worth more or less than their original cost.
All results are historical.
Please see the registration statement and financial statements for more information.
The Bloomberg U.S. Municipal High Yield Bond Index is an unmanaged measure of the performance of the high-yield municipal bond market. Indices are unmanaged and their returns assume reinvestment of dividends and do not reflect any fees or expenses. It is not possible to invest directly in an index.
12Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Comparing Ongoing Portfolio Expenses 
As an investor in the Portfolio, you incur two types of costs:
(1) ongoing costs, including management fees and other Portfolio expenses; and
(2) transaction costs.
This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Portfolio and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Portfolio’s latest six-month period and held throughout the six months.
Using the Tables

Actual Expenses
The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows:
(1) Divide your account value by $1,000
Example: an $8,600 account value ÷ $1,000 = 8.6
(2) Multiply the result in (1) above by the corresponding share class’s number in the third row under the heading entitled “Expenses Paid During Period” to estimate the expenses you paid on your account during this period.
Expenses Paid on a $1,000 Investment in Pioneer High Income Municipal Portfolio
Based on actual returns from September 1, 2022 through February 28, 2023.
   
Beginning Account
Value on 9/1/22
$1,000.00
Ending Account Value
(after expenses) on 2/28/23
$986.50
Expenses Paid
During Period*
$0.10
   
* Expenses are equal to the Portfolio’s annualized net expense ratio of 0.02% multiplied by the average account value over the period, multiplied by 181/365 (to reflect the partial year period).
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2313


Comparing Ongoing Portfolio Expenses 
(continued)
Hypothetical Example for Comparison Purposes
The table below provides information about hypothetical account values and hypothetical expenses based on the Portfolio’s actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Portfolio’s actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period.
You may use this information to compare the ongoing costs of investing in the Portfolio and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds.
Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher.
Expenses Paid on a $1,000 Investment in Pioneer High Income Municipal Portfolio
Based on a hypothetical 5% return per year before expenses, reflecting the period from September 1, 2022 through February 28, 2023.
   
Beginning Account
Value on 9/1/22
$1,000.00
Ending Account Value
(after expenses) on 2/28/23
$1,024.70
Expenses Paid
During Period*
$0.10
   
* Expenses are equal to the Portfolio’s annualized net expense ratio of 0.02% multiplied by the average account value over the period, multiplied by 181/365 (to reflect the partial year period).
14Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Schedule of Investments  |  2/28/23
(unaudited) 
Principal
Amount
USD ($)
          Value
  UNAFFILIATED ISSUERS — 97.4%  
  Municipal Bonds — 96.8% of Net Assets(a)  
  Alabama — 0.9%  
4,525,000 Hoover Industrial Development Board, 5.75%, 10/1/49 $    4,649,302
10,000,000 Tuscaloosa County Industrial Development Authority, Hunt Refining Project, Series A, 5.25%, 5/1/44 (144A)     8,667,700
  Total Alabama    $ 13,317,002
  Arizona — 1.9%  
1,675,000 Arizona Industrial Development Authority, Doral Academy Nevada Fire Mesa, Series A, 5.00%, 7/15/49 (144A) $    1,497,634
265,000 Arizona Industrial Development Authority, Doral Academy Of Northern Nevada Project, Series A, 4.00%, 7/15/41 (144A)        216,921
500,000 Arizona Industrial Development Authority, Doral Academy Of Northern Nevada Project, Series A, 4.00%, 7/15/51 (144A)        371,180
475,000 Arizona Industrial Development Authority, Doral Academy Of Northern Nevada Project, Series A, 4.00%, 7/15/56 (144A)        342,561
12,595,000 Industrial Development Authority of the City of Phoenix, 3rd & Indian School Assisted Living Project, 5.40%, 10/1/36     11,095,439
1,000,000 Industrial Development Authority of the County of Pima, Facility Desert Heights Charter, 7.00%, 5/1/34      1,035,310
3,000,000 Industrial Development Authority of the County of Pima, Facility Desert Heights Charter, 7.25%, 5/1/44      3,096,300
7,320,000 Maricopa County Industrial Development Authority, Commercial Metals Company, 4.00%, 10/15/47 (144A)      6,073,038
1,810,000 Tempe Industrial Development Authority, Series A, 6.125%, 10/1/47 (144A)      1,383,890
2,400,000 Tempe Industrial Development Authority, Series A, 6.125%, 10/1/52 (144A)     1,765,968
  Total Arizona    $ 26,878,241
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2315


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Arkansas — 2.8%  
35,000,000 Arkansas Development Finance Authority, Big River Steel Project, 4.50%, 9/1/49 (144A) $   31,073,000
9,500,000 Arkansas Development Finance Authority, Green Bond, 5.45%, 9/1/52 (144A)     9,349,330
  Total Arkansas    $ 40,422,330
  California — 16.7%  
2,000,000 California County Tobacco Securitization Agency, 5.00%, 6/1/50 $    1,997,960
80,000 California County Tobacco Securitization Agency, Asset-Backed, Series A, 5.875%, 6/1/43         80,270
1,370,000 California County Tobacco Securitization Agency, Golden Gate Tobacco Settlement, Series A, 5.00%, 6/1/47      1,256,852
185,000 California Municipal Finance Authority, Series A, 5.00%, 12/1/36 (144A)        187,847
2,000,000 California Municipal Finance Authority, Series A, 5.00%, 12/1/46 (144A)      1,915,740
2,000,000 California Municipal Finance Authority, Series A, 5.00%, 11/1/49 (144A)      1,892,060
2,000,000 California Municipal Finance Authority, Series A, 5.00%, 12/1/54 (144A)      1,889,780
2,910,000 California Municipal Finance Authority, Series B, 4.75%, 12/1/31 (144A)      2,637,333
6,115,000 California Municipal Finance Authority, Series B, 5.25%, 12/1/36 (144A)      5,505,579
4,530,000 California Municipal Finance Authority, Series B, 5.50%, 12/1/39 (144A)      4,079,944
2,000,000 California Municipal Finance Authority, Baptist University, Series A, 5.00%, 11/1/46 (144A)      1,922,160
8,350,000 California Municipal Finance Authority, Baptist University, Series A, 5.50%, 11/1/45 (144A)      8,424,231
250,000 California Municipal Finance Authority, John Adams Academics Project, Series A, 5.00%, 10/1/35        255,260
1,550,000 California Municipal Finance Authority, John Adams Academics Project, Series A, 5.25%, 10/1/45      1,580,861
500,000 California Municipal Finance Authority, Santa Rosa Academy Project, 5.125%, 7/1/35 (144A)        504,415
1,575,000 California Municipal Finance Authority, Santa Rosa Academy Project, 5.375%, 7/1/45 (144A)      1,631,070
100,000 California School Finance Authority, View Park Elementary & Middle School, Series A, 4.75%, 10/1/24        101,033
The accompanying notes are an integral part of these financial statements.
16Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  California — (continued)  
830,000 California School Finance Authority, View Park Elementary & Middle School, Series A, 5.625%, 10/1/34 $       859,191
2,175,000 California School Finance Authority, View Park Elementary & Middle School, Series A, 5.875%, 10/1/44      2,234,312
1,000,000 California School Finance Authority, View Park Elementary & Middle School, Series A, 6.00%, 10/1/49      1,025,800
3,230,000 California School Finance Authority, View Park High School, Series A, 7.125%, 10/1/48 (144A)      3,304,936
1,875,000 California Statewide Communities Development Authority, Baptist University, Series A, 5.00%, 11/1/41 (144A)      1,836,994
1,560,000 California Statewide Communities Development Authority, Baptist University, Series A, 6.125%, 11/1/33 (144A)      1,580,264
4,030,000 California Statewide Communities Development Authority, Baptist University, Series A, 6.375%, 11/1/43 (144A)      4,069,696
5,475,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, 5.25%, 12/1/43 (144A)      5,433,828
6,165,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, 5.50%, 12/1/54      6,109,638
20,760,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, 5.50%, 12/1/58 (144A)     20,851,967
3,500,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, Series A, 5.00%, 12/1/46 (144A)      3,211,285
31,320,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, Series A, 5.25%, 12/1/56 (144A)     29,427,019
700,000 City of Oroville, Oroville Hospital, 5.25%, 4/1/34        723,975
6,980,000 City of Oroville, Oroville Hospital, 5.25%, 4/1/39      7,043,658
34,720,000 City of Oroville, Oroville Hospital, 5.25%, 4/1/49     33,491,259
31,800,000 City of Oroville, Oroville Hospital, 5.25%, 4/1/54     30,171,204
64,000,000 Golden State Tobacco Securitization Corp., Series A1, 4.214%, 6/1/50     51,827,840
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2317


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  California — (continued)  
2,500,000(b) Pittsburg Unified School District Financing Authority, Capital Appreciation General Obligation Pittsburg, 9/1/41 (AGM Insured) $    1,133,425
1,925,000(b) Pittsburg Unified School District Financing Authority, Capital Appreciation General Obligation Pittsburg, 9/1/42 (AGM Insured)       831,177
  Total California   $ 241,029,863
  Colorado — 6.6%  
4,535,000(c) 2000 Holly Metropolitan District, Series A, 5.00%, 12/1/50 $    3,991,027
577,000(c) 2000 Holly Metropolitan District, Series B, 7.50%, 12/15/50        543,413
1,735,000(c) Belleview Village Metropolitan District, 4.95%, 12/1/50      1,467,272
1,250,000(c) Cottonwood Highlands Metropolitan District No. 1, Series A, 5.00%, 12/1/49      1,131,263
2,090,000(c) Cottonwood Highlands Metropolitan District No. 1, Series B, 8.75%, 12/15/49      2,123,774
4,090,000(c) Crystal Crossing Metropolitan District, 5.25%, 12/1/40      4,064,724
26,000,000 Dominion Water & Sanitation District, 5.875%, 12/1/52     25,455,300
8,425,000(c) Green Valley Ranch East Metropolitan District No. 6, Series A, 5.875%, 12/1/50      8,082,018
15,270,000(c) Larkridge Metropolitan District No. 2, 5.25%, 12/1/48     14,187,052
5,261,000(c) Littleton Village Metropolitan District No. 2, 5.375%, 12/1/45      5,153,886
1,125,000 Nine Mile Metropolitan District, 4.625%, 12/1/30      1,063,361
9,760,000 Nine Mile Metropolitan District, 5.125%, 12/1/40      9,166,299
1,000,000(c) Ridgeline Vista Metropolitan District, Series A, 5.25%, 12/1/60        939,830
2,000,000(c) Settler's Crossing Metropolitan District No. 1, Series A, 5.00%, 12/1/40 (144A)      1,841,780
3,760,000(c) Settler's Crossing Metropolitan District No. 1, Series A, 5.125%, 12/1/50 (144A)      3,303,310
597,000(c) Settler's Crossing Metropolitan District No. 1, Series B, 7.625%, 12/15/50        582,284
1,722,000(c) Village at Dry Creek Metropolitan District No. 2, 4.375%, 12/1/44      1,476,030
1,246,000(c) Villas Metropolitan District, Series A, 5.125%, 12/1/48      1,238,910
The accompanying notes are an integral part of these financial statements.
18Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  Colorado — (continued)  
4,280,000(c) Willow Bend Metropolitan District, Series A, 5.00%, 12/1/39 $    4,104,648
5,375,000(c) Willow Bend Metropolitan District, Series A, 5.00%, 12/1/49      4,835,135
755,000(c) Willow Bend Metropolitan District, Series B, 7.625%, 12/15/49       690,923
  Total Colorado    $ 95,442,239
  Delaware — 0.2%  
2,225,000 Delaware State Economic Development Authority, Aspira of Delaware Charter, 4.00%, 6/1/52 $    1,669,974
1,380,000 Delaware State Economic Development Authority, Aspira of Delaware Charter, 4.00%, 6/1/57     1,003,080
  Total Delaware     $ 2,673,054
  District of Columbia — 0.4%  
915,000 District of Columbia, Inspired Teaching Demonstration Public Charter School, 5.00%, 7/1/32 $       961,217
1,500,000 District of Columbia, Inspired Teaching Demonstration Public Charter School, 5.00%, 7/1/42      1,509,300
1,165,000 District of Columbia, Inspired Teaching Demonstration Public Charter School, 5.00%, 7/1/47      1,160,934
1,835,000 District of Columbia, Inspired Teaching Demonstration Public Charter School, 5.00%, 7/1/52      1,807,163
735,000 District of Columbia Tobacco Settlement Financing Corp., Asset-Backed, 6.75%, 5/15/40       756,940
  Total District of Columbia     $ 6,195,554
  Florida — 1.3%  
500,000(d) Capital Trust Agency, Inc., Series B, 5.00%, 7/1/43 $        50,000
750,000(d) Capital Trust Agency, Inc., Series B, 5.00%, 7/1/53         75,000
500,000(d) Capital Trust Agency, Inc., Series B, 5.25%, 7/1/48         50,000
1,000,000 Charlotte County Industrial Development Authority, Town & Country Utilities Project, 4.00%, 10/1/51 (144A)        743,860
850,000 County of Lake, 5.00%, 1/15/54 (144A)        745,382
270,000 County of Lake, Imagine South Lake Charter School Project, 5.00%, 1/15/29 (144A)        272,049
1,250,000 County of Lake, Imagine South Lake, Charter School Project, 5.00%, 1/15/39 (144A)      1,184,438
2,350,000 County of Lake, Imagine South Lake, Charter School Project, 5.00%, 1/15/49 (144A)      2,100,454
300,000 Florida Development Finance Corp., Glenridge On Palmer Ranch Project, 5.00%, 6/1/31        291,612
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2319


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Florida — (continued)  
13,475,000 Florida Development Finance Corp., Glenridge On Palmer Ranch Project, 5.00%, 6/1/51 $   10,717,206
225,000 Florida Development Finance Corp., The Glenridge On Palmer Ranch Project, 5.00%, 6/1/35        209,439
2,500,000 Palm Beach County Health Facilities Authority, Toby & Leon Cooperman Sinai, 4.25%, 6/1/56     1,887,650
  Total Florida    $ 18,327,090
  Guam — 0.1%  
1,100,000 Guam Economic Development & Commerce Authority, Asset-Backed, 5.625%, 6/1/47 $    1,000,923
  Total Guam     $ 1,000,923
  Illinois — 8.8%  
1,650,000 Chicago Board of Education, 5.75%, 4/1/35 $    1,759,841
8,010,000 Chicago Board of Education, 6.00%, 4/1/46      8,291,471
2,500,000(c) Chicago Board of Education, Series A, 5.00%, 12/1/37      2,482,625
16,170,000(c) Chicago Board of Education, Series A, 5.00%, 12/1/42     15,490,375
1,000,000(c) Chicago Board of Education, Series A, 7.00%, 12/1/46 (144A)      1,083,680
8,000,000(c) Chicago Board of Education, Series B, 6.50%, 12/1/46      8,468,880
2,035,000(c) Chicago Board of Education, Series C, 5.00%, 12/1/34      2,067,601
1,415,000(c) Chicago Board of Education, Series C, 5.25%, 12/1/39      1,392,049
20,000,000(c) Chicago Board of Education, Series D, 5.00%, 12/1/46     18,932,800
2,305,000(c) Chicago Board of Education, Series G, 5.00%, 12/1/44      2,238,385
7,775,000(c) Chicago Board of Education, Series H, 5.00%, 12/1/46      7,481,105
2,900,000(c) City of Chicago, 5.50%, 1/1/34      2,948,169
9,200,000(c) City of Chicago, Series A, 5.50%, 1/1/35      9,701,124
13,795,000(c) City of Chicago, Series A, 5.50%, 1/1/49     14,140,427
4,270,000 City of Plano Special Service Area No. 3 & No. 4, 4.00%, 3/1/35      4,280,248
4,050,000 Illinois Finance Authority, Series 2, 6.00%, 11/15/36      3,460,482
1,591,212(b) Illinois Finance Authority, Cabs Clare Oaks Project, Series B1, 11/15/52         18,219
2,520,597(e) Illinois Finance Authority, Clare Oaks Project, Series 3, 5.25%, 11/15/52      1,813,418
The accompanying notes are an integral part of these financial statements.
20Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  Illinois — (continued)  
2,000,000 Metropolitan Pier & Exposition Authority, Searstone CCRC Project, 5.00%, 6/15/50 $    1,966,920
12,160,000 Southwestern Illinois Development Authority, 5.00%, 6/1/53     11,476,730
1,415,000(d) Southwestern Illinois Development Authority, Village of Sauget Project, 5.625%, 11/1/26        820,700
3,040,000 Village of Lincolnwood, Series A, 4.82%, 1/1/41 (144A)      2,773,118
2,165,000 Village of Matteson, 6.50%, 12/1/35      2,205,139
1,139,000 Village of Volo IL Special Service Area No. 17, 5.50%, 3/1/47     1,145,880
  Total Illinois   $ 126,439,386
  Indiana — 6.9%  
8,230,000 City of Anderson, 5.375%, 1/1/40 (144A) $    6,843,739
580,000 City of Evansville, Silver Birch Evansville Project, 4.80%, 1/1/28        553,790
6,475,000 City of Evansville, Silver Birch Evansville Project, 5.45%, 1/1/38      5,442,108
600,000 City of Fort Wayne, 5.125%, 1/1/32        539,802
4,665,000 City of Fort Wayne, 5.35%, 1/1/38      3,856,276
24,990,000 City of Hammond, Custodial Receipts Cabelas Project, 7.50%, 2/1/29 (144A)     24,052,875
1,275,000 City of Kokomo, Silver Birch of Kokomo, 5.75%, 1/1/34      1,230,375
7,575,000 City of Kokomo, Silver Birch of Kokomo, 5.875%, 1/1/37      7,127,848
1,075,000 City of Lafayette, Glasswater Creek Lafayette Project, 5.60%, 1/1/33      1,067,798
6,000,000 City of Lafayette, Glasswater Creek Lafayette Project, 5.80%, 1/1/37      6,010,680
800,000 City of Mishawaka, Silver Birch Mishawaka Project, 5.10%, 1/1/32 (144A)        750,112
5,890,000 City of Mishawaka, Silver Birch Mishawaka Project, 5.375%, 1/1/38 (144A)      4,882,162
4,560,000 City of Terre Haute, 5.35%, 1/1/38      3,709,879
5,190,000 Indiana Finance Authority, Multipurpose Educational Facilities, Avondale Meadows Academy Project, 5.125%, 7/1/37      5,317,155
330,000 Indiana Finance Authority, Multipurpose Educational Facilities, Avondale Meadows Academy Project, 5.375%, 7/1/47        331,003
1,975,000 Indiana Finance Authority, Sanders Glen Project, Series A, 4.25%, 7/1/43      1,729,606
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2321


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Indiana — (continued)  
2,020,000 Indiana Finance Authority, Sanders Glen Project, Series A, 4.50%, 7/1/53 $    1,743,179
11,985,000 Indiana Housing & Community Development Authority, Series A, 5.00%, 1/1/39 (144A)      9,450,172
8,340,000 Indiana Housing & Community Development Authority, Evergreen Village Bloomington Project, 5.50%, 1/1/37      7,329,025
7,950,000 Town of Plainfield Multifamily Housing Revenue, 5.375%, 9/1/38     7,590,581
  Total Indiana    $ 99,558,165
  Iowa — 1.4%  
21,485,000 Iowa Finance Authority, Alcoa Inc. Projects, 4.75%, 8/1/42 $   20,426,649
  Total Iowa    $ 20,426,649
  Kansas — 0.9%  
400,000 Kansas Development Finance Authority, Series A, 5.25%, 11/15/33 $       361,212
15,405,000 Kansas Development Finance Authority, Series A, 5.25%, 11/15/53     11,058,325
2,500,000 Kansas Development Finance Authority, Series A, 5.50%, 11/15/38     2,117,825
  Total Kansas    $ 13,537,362
  Maryland — 0.1%  
900,000 Maryland Health & Higher Educational Facilities Authority, City Neighbors, Series A, 6.75%, 7/1/44 $       909,126
  Total Maryland       $ 909,126
  Massachusetts — 0.5%  
689,436(d) Massachusetts Development Finance Agency, Adventcare Project, 7.625%, 10/15/37 $       241,302
1,802,446(d) Massachusetts Development Finance Agency, Adventcare Project, Series A, 6.75%, 10/15/37 (144A)        630,856
1,250,000 Massachusetts Development Finance Agency, International Charter School, 5.00%, 4/15/40      1,264,025
4,500,000 Massachusetts Development Finance Agency, Linden Ponds, 5.125%, 11/15/46 (144A)     4,632,525
  Total Massachusetts     $ 6,768,708
  Michigan — 2.1%  
8,565,000 David Ellis Academy-West, 5.25%, 6/1/45 $    7,697,365
The accompanying notes are an integral part of these financial statements.
22Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  Michigan — (continued)  
1,250,000 Flint Hospital Building Authority, Hurley Medical Center, Series A, 5.25%, 7/1/39 $    1,250,013
5,485,000 Flint International Academy, 5.75%, 10/1/37      5,485,000
5,720,000 Michigan Finance Authority, 5.75%, 4/1/40      5,889,255
4,000,000(e) Michigan Strategic Fund, Series B, 7.50%, 11/1/41      4,178,800
7,115,000(e) Michigan Strategic Fund, Michigan Department Offices Lease, Series B, 7.75%, 3/1/40     6,384,076
  Total Michigan    $ 30,884,509
  Minnesota — 2.1%  
1,310,000 City of Bethel, 6.00%, 7/1/57 $    1,189,336
4,210,000 City of Bethel, Series A, 5.00%, 7/1/48      3,940,055
1,000,000 City of Bethel, Series A, 5.00%, 7/1/53        911,390
2,600,000 City of Brooklyn Park, Prairie Seeds Academy Project, Series A, 5.00%, 3/1/34      2,638,584
2,000,000 City of Brooklyn Park, Prairie Seeds Academy Project, Series A, 5.00%, 3/1/39      2,016,720
3,515,000 City of Deephaven, Eagle Ridge Academy Project, Series A, 5.00%, 7/1/55      3,636,724
400,000 City of Deephaven, Eagle Ridge Academy Project, Series A, 5.25%, 7/1/37        404,396
1,500,000 City of Deephaven, Eagle Ridge Academy Project, Series A, 5.50%, 7/1/50      1,500,285
3,145,000 City of Rochester, Series A, 5.25%, 9/1/43      2,701,398
6,080,000 City of Rochester, Series A, 5.375%, 9/1/50      5,089,386
1,500,000 City of Rochester, Rochester Math & Science Academy, Series A, 5.125%, 9/1/38      1,430,295
2,000,000 Housing & Redevelopment Authority of The City of St. Paul Minnesota, Great River School Project, Series A, 5.50%, 7/1/52 (144A)      2,077,140
1,415,000 Housing & Redevelopment Authority of The City of St. Paul Minnesota, Higher Ground Academy Project, 5.125%, 12/1/38      1,415,792
1,300,000 Housing & Redevelopment Authority of The City of St. Paul Minnesota, St. Paul City School Project, Series A, 5.00%, 7/1/36     1,388,101
  Total Minnesota    $ 30,339,602
  Missouri — 0.2%  
200,000 Kansas City Industrial Development Authority, Series A, 4.25%, 4/1/26 (144A) $       199,020
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2323


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Missouri — (continued)  
1,000,000 Kansas City Industrial Development Authority, Series A, 5.00%, 4/1/36 (144A) $       971,360
2,300,000 Kansas City Industrial Development Authority, Series A, 5.00%, 4/1/46 (144A)     2,084,766
  Total Missouri     $ 3,255,146
  New Jersey — 1.3%  
934,452 New Jersey Economic Development Authority, Series A, 4.70%, 9/1/28 (144A) $       855,023
1,255,000 New Jersey Economic Development Authority, Series A, 5.25%, 10/1/38 (144A)      1,206,344
541,503 New Jersey Economic Development Authority, Series A, 5.375%, 9/1/33 (144A)        495,475
1,092,590 New Jersey Economic Development Authority, Series A, 5.625%, 9/1/38 (144A)        999,720
5,870,274 New Jersey Economic Development Authority, Series A, 5.75%, 9/1/50 (144A)      5,371,301
1,215,000 New Jersey Economic Development Authority, Charter Hatikvah International Academy, Series A, 5.25%, 7/1/37 (144A)      1,141,444
2,500,000 New Jersey Economic Development Authority, Charter Hatikvah International Academy, Series A, 5.375%, 7/1/47 (144A)      2,261,200
7,205,000 New Jersey Economic Development Authority, Marion P. Thomas Charter School, Inc., Project, Series A, 5.375%, 10/1/50 (144A)     6,769,602
  Total New Jersey    $ 19,100,109
  New Mexico — 1.3%  
1,690,000(e) County of Otero, Otero County Jail Project, Certificate Participation, 9.00%, 4/1/23 $    1,690,000
16,135,000(e) County of Otero, Otero County Jail Project, Certificate Participation, 9.00%, 4/1/28     16,135,000
1,750,000 Lower Petroglyphs Public Improvement District, 5.00%, 10/1/48     1,609,947
  Total New Mexico    $ 19,434,947
  New York — 14.0%  
375,000 Buffalo & Erie County Industrial Land Development Corp., 5.00%, 10/1/28 (144A) $       386,996
4,150,000 Buffalo & Erie County Industrial Land Development Corp., 5.00%, 10/1/38 (144A)      4,152,781
6,175,000 Chautauqua Tobacco Asset Securitization Corp., 5.00%, 6/1/48      6,005,188
The accompanying notes are an integral part of these financial statements.
24Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  New York — (continued)  
10,000,000(d) Erie County Industrial Development Agency, Galvstar LLC Project, Series A, 9.25%, 10/1/30 $    1,250,000
8,000,000(d) Erie County Industrial Development Agency, Galvstar LLC Project, Series B, 9.25%, 10/1/30      1,890,000
1,795,000(d) Erie County Industrial Development Agency, Galvstar LLC Project, Series C, 9.25%, 10/1/30        424,069
8,755,000 Erie Tobacco Asset Securitization Corp., Asset-Backed, Series A, 5.00%, 6/1/45      8,402,611
22,015,000 Nassau County Tobacco Settlement Corp., Asset-Backed, Series A3, 5.00%, 6/1/35     20,642,365
15,020,000 Nassau County Tobacco Settlement Corp., Asset-Backed, Series A3, 5.125%, 6/1/46     13,834,471
5,735,000 New York Counties Tobacco Trust IV, Series A, 5.00%, 6/1/42      5,311,241
21,100,000 New York Counties Tobacco Trust IV, Series A, 6.25%, 6/1/41 (144A)     21,101,688
32,420,000 New York Counties Tobacco Trust IV, Settlement pass through, Series A, 5.00%, 6/1/45     29,540,780
51,600,000(b) New York Counties Tobacco Trust V, Capital Appreciation Pass Through, Series S-4A, 6/1/60 (144A)      2,340,060
440,000 New York Counties Tobacco Trust VI, Series A-2B, 5.00%, 6/1/45        416,438
18,745,000 New York Counties Tobacco Trust VI, Settlement pass through, Series A-2B, 5.00%, 6/1/51     17,562,190
2,820,000 Riverhead Industrial Development Agency, 7.65%, 8/1/34      2,828,798
2,250,000 TSASC, Inc., Series B, 5.00%, 6/1/25      2,199,353
26,890,000 TSASC, Inc., Series B, 5.00%, 6/1/45     25,144,301
27,480,000 TSASC, Inc., Series B, 5.00%, 6/1/48     26,169,204
12,000,000 Westchester County Local Development Corp., Purchase Senior Learning Community, Inc. Project, 4.50%, 7/1/56 (144A)      7,986,600
5,000,000 Westchester County Local Development Corp., Purchase Senior Learning Community, Inc. Project, 5.00%, 7/1/36 (144A)     4,302,300
  Total New York   $ 201,891,434
  Ohio — 4.7%  
69,000,000 Buckeye Tobacco Settlement Financing Authority, Senior Class 2, Series B2, 5.00%, 6/1/55 $   62,445,000
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2325


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Ohio — (continued)  
530,000 Ohio Housing Finance Agency, Sanctuary Springboro Project, 5.125%, 1/1/32 (144A) $       456,643
5,275,000 Ohio Housing Finance Agency, Sanctuary Springboro Project, 5.45%, 1/1/38 (144A)     4,217,784
  Total Ohio    $ 67,119,427
  Pennsylvania — 4.1%  
1,000,000 Chester County Industrial Development Authority, Collegium Charter School, Series A, 5.125%, 10/15/37 $    1,000,170
2,535,000 Chester County Industrial Development Authority, Collegium Charter School, Series A, 5.25%, 10/15/47      2,277,469
8,465,000 Delaware County Industrial Development Authority, Chester Charter School Arts Project, Series A, 5.125%, 6/1/46 (144A)      8,811,049
1,310,000 Philadelphia Authority for Industrial Development, 5.00%, 4/15/32 (144A)      1,333,174
2,290,000 Philadelphia Authority for Industrial Development, 5.00%, 4/15/42 (144A)      2,170,233
3,335,000 Philadelphia Authority for Industrial Development, 5.00%, 4/15/52 (144A)      3,020,843
1,660,000 Philadelphia Authority for Industrial Development, 5.125%, 6/1/38 (144A)      1,700,222
3,500,000 Philadelphia Authority for Industrial Development, 5.25%, 6/1/48 (144A)      3,521,350
4,370,000 Philadelphia Authority for Industrial Development, 5.375%, 6/1/53 (144A)      4,391,500
9,435,000 Philadelphia Authority for Industrial Development, 5.50%, 6/1/49 (144A)      9,636,532
925,000 Philadelphia Authority for Industrial Development, Series A, 5.00%, 11/15/31        917,508
4,055,000 Philadelphia Authority for Industrial Development, 2800 American Street Co. Project, Series A, 5.625%, 7/1/48 (144A)      4,067,084
8,295,000 Philadelphia Authority for Industrial Development, Global Leadership Academy Charter School Project, Series A, 5.00%, 11/15/50      7,312,872
2,200,000 Philadelphia Authority for Industrial Development, Greater Philadelphia Health Action, Inc. Project, Series A, 6.50%, 6/1/45      2,127,554
2,940,000 Philadelphia Authority for Industrial Development, Greater Philadelphia Health Action, Inc., Project, Series A, 6.625%, 6/1/50      2,866,118
The accompanying notes are an integral part of these financial statements.
26Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  Pennsylvania — (continued)  
340,000 Philadelphia Authority for Industrial Development, Green Woods Charter School, Series A, 5.00%, 6/15/32 $       336,291
1,045,000 Philadelphia Authority for Industrial Development, Green Woods Charter School, Series A, 5.125%, 6/15/42        975,831
970,000 Philadelphia Authority for Industrial Development, Green Woods Charter School, Series A, 5.25%, 6/15/52        884,679
1,020,000 Philadelphia Authority for Industrial Development, Green Woods Charter School, Series A, 5.375%, 6/15/57       957,494
  Total Pennsylvania    $ 58,307,973
  Puerto Rico — 4.8%  
15,689,000(c) Commonwealth of Puerto Rico, Series A1, 4.00%, 7/1/46 $   12,354,774
10,745,000 Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A, 5.00%, 7/1/47 (144A)     10,001,016
6,685,000 Puerto Rico Electric Power Authority, Series AAA, 5.25%, 7/1/21      4,575,883
3,535,000 Puerto Rico Electric Power Authority, Series CCC, 4.80%, 7/1/28      2,439,150
1,285,000 Puerto Rico Electric Power Authority, Series CCC, 5.00%, 7/1/24        888,256
3,735,000 Puerto Rico Electric Power Authority, Series DDD, 5.00%, 7/1/23      2,633,175
3,315,000 Puerto Rico Electric Power Authority, Series TT, 5.00%, 7/1/21      2,337,075
1,000,000 Puerto Rico Electric Power Authority, Series WW, 5.00%, 7/1/28        692,500
1,130,000 Puerto Rico Electric Power Authority, Series ZZ, 4.75%, 7/1/27        776,875
14,060,000 Puerto Rico Highway & Transportation Authority, Series A, 5.00%, 7/1/62     13,005,500
4,000,000 Puerto Rico Highway & Transportation Authority, Series A, 5.85%, 3/1/27      3,998,000
1,295,000 Puerto Rico Industrial Tourist Educational Medical & Environmental Control Facilities Financing Authority, Series A, 5.20%, 7/1/24      1,306,046
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2327


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Puerto Rico — (continued)  
11,458,000 Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, Series 2, 4.784%, 7/1/58 $   10,184,787
4,209,000 Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, Series A1, 5.00%, 7/1/58     3,889,326
  Total Puerto Rico    $ 69,082,363
  Rhode Island — 0.2%  
2,065,000(d) Central Falls Detention Facility Corp., 7.25%, 7/15/35 $       371,700
2,000,000(e) Tender Option Bond Trust Receipts/Certificates, RIB, Series 2019, 8.129%, 9/1/47 (144A)     1,810,980
  Total Rhode Island     $ 2,182,680
  Tennessee — 0.1%  
1,095,000 Metropolitan Government Nashville & Davidson County Industrial Development Board, 4.00%, 6/1/51 (144A) $       832,660
  Total Tennessee       $ 832,660
  Texas — 4.4%  
640,000 Arlington Higher Education Finance Corp., 3.50%, 3/1/24 (144A) $       635,898
16,875,000 Arlington Higher Education Finance Corp., 5.45%, 3/1/49 (144A)     17,607,544
95,000 Arlington Higher Education Finance Corp., Series A, 5.875%, 3/1/24         95,437
525,000 Arlington Higher Education Finance Corp., Series A, 6.625%, 3/1/29        538,613
375,000 Arlington Higher Education Finance Corp., Universal Academy, Series A, 7.00%, 3/1/34        382,223
7,030,000 Arlington Higher Education Finance Corp., Universal Academy, Series A, 7.125%, 3/1/44      7,154,009
280,000 City of Celina, 5.50%, 9/1/24        282,254
1,025,000 City of Celina, 6.00%, 9/1/30      1,040,447
2,590,000 City of Celina, 6.25%, 9/1/40      2,642,214
16,755,000(e) Greater Texas Cultural Education Facilities Finance Corp., 9.00%, 2/1/50 (144A)     15,349,758
3,335,000(e) Greater Texas Cultural Education Facilities Finance Corp., Series B, 9.00%, 2/1/33 (144A)      3,327,963
100,000(f) La Vernia Higher Education Finance Corp., Meridian World School, Series A, 5.25%, 8/15/35 (144A)        102,882
2,000,000(f) La Vernia Higher Education Finance Corp., Meridian World School, Series A, 5.50%, 8/15/45 (144A)      2,064,680
1,250,000 New Hope Cultural Education Facilities Finance Corp., Village On The Park, Series C, 5.50%, 7/1/46        562,500
The accompanying notes are an integral part of these financial statements.
28Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  Texas — (continued)  
1,000,000 New Hope Cultural Education Facilities Finance Corp., Village On The Park, Series C, 5.75%, 7/1/51 $       450,000
75,000 New Hope Cultural Education Facilities Finance Corp., Village On The Park, Series D, 6.00%, 7/1/26         30,000
1,350,000 New Hope Cultural Education Facilities Finance Corp., Village On The Park, Series D, 7.00%, 7/1/51        540,000
17,350,000(d) Sanger Industrial Development Corp., Texas Pellets Project, Series B, 8.00%, 7/1/38      4,272,437
8,142,447(d) Tarrant County Cultural Education Facilities Finance Corp., Series A, 5.75%, 12/1/54      5,292,591
1,000,000(e) Texas Midwest Public Facility Corp., Secure Treatment Facility Project, Restructured, 0.001%, 12/1/30       631,650
  Total Texas    $ 63,003,100
  Virginia — 5.0%  
3,000,000 Ballston Quarter Community Development Authority, Series A, 5.50%, 3/1/46 $    2,158,500
2,050,000 Cherry Hill Community Development Authority, Potomac Shores Project, 5.40%, 3/1/45 (144A)      2,056,929
21,385,000 Tobacco Settlement Financing Corp., Series 1, 6.706%, 6/1/46     19,767,439
41,495,000 Tobacco Settlement Financing Corp., Series B1, 5.00%, 6/1/47     38,843,884
5,905,000(e) Tobacco Settlement Financing Corp., Series B2, 5.20%, 6/1/46      5,733,046
14,000,000(b) Tobacco Settlement Financing Corp., Series D, 6/1/47     3,285,660
  Total Virginia    $ 71,845,458
  Wisconsin — 3.0%  
2,500,000 Public Finance Authority, American Preparatory Academy - Las Vegas Project, Series A, 5.125%, 7/15/37 (144A) $    2,445,225
1,550,000 Public Finance Authority, Community School of Davidson Project, 5.00%, 10/1/33      1,561,036
5,905,000 Public Finance Authority, Community School of Davidson Project, 5.00%, 10/1/48      5,506,117
1,590,000 Public Finance Authority, Coral Academy Science Las Vegas, Series A, 5.625%, 7/1/44      1,627,254
370,000 Public Finance Authority, Coral Academy Science Reno, 5.00%, 6/1/29 (144A)        364,742
710,000 Public Finance Authority, Coral Academy Science Reno, 5.00%, 6/1/39 (144A)        656,111
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2329


Schedule of Investments  |  2/28/23
(unaudited) (continued)
Principal
Amount
USD ($)
          Value
  Wisconsin — (continued)  
2,660,000 Public Finance Authority, Coral Academy Science Reno, 5.00%, 6/1/50 (144A) $     2,279,514
400,000 Public Finance Authority, Coral Academy Science Reno, Series A, 4.00%, 6/1/36 (144A)        390,488
700,000 Public Finance Authority, Coral Academy Science Reno, Series A, 4.00%, 6/1/51 (144A)        592,662
1,130,000 Public Finance Authority, Coral Academy Science Reno, Series A, 4.00%, 6/1/61 (144A)        897,570
335,000 Public Finance Authority, Coral Academy Science Reno, Series A, 5.375%, 6/1/37 (144A)        336,437
900,000 Public Finance Authority, Coral Academy Science Reno, Series A, 5.875%, 6/1/52 (144A)        872,757
1,565,000 Public Finance Authority, Coral Academy Science Reno, Series A, 6.00%, 6/1/62 (144A)      1,517,158
9,310,000 Public Finance Authority, Gardner Webb University, 5.00%, 7/1/31 (144A)      9,809,854
275,000 Public Finance Authority, Lead Academy Project, Series A, 4.25%, 8/1/26 (144A)        271,480
2,000,000 Public Finance Authority, Lead Academy Project, Series A, 5.00%, 8/1/36 (144A)      2,076,920
2,500,000 Public Finance Authority, Lead Academy Project, Series A, 5.125%, 8/1/46 (144A)      2,539,500
2,000,000 Public Finance Authority, Searstone CCRC Project, 4.00%, 6/1/41 (144A)      1,496,340
1,500,000 Public Finance Authority, SearStone CCRC Project, Series A, 5.00%, 6/1/37 (144A)      1,323,540
2,500,000 Public Finance Authority, SearStone CCRC Project, Series A, 5.00%, 6/1/52 (144A)      1,954,150
500,000(e) Public Finance Authority, SearStone CCRC Project, Series A, 5.613%, 6/1/47        524,125
2,500,000(e) Public Finance Authority, SearStone CCRC Project, Series A, 5.688%, 6/1/52      2,620,525
10,640,000(b)(d) Public Finance Authority, Springshire Pre Development Project, 12/1/20 (144A)     1,064,000
  Total Wisconsin    $ 42,727,505
  Total Municipal Bonds
(Cost $1,508,316,828)
$1,392,932,605
The accompanying notes are an integral part of these financial statements.
30Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Principal
Amount
USD ($)
          Value
  Debtors in Possession Financing — 0.6%
of Net Assets#
 
  Retirement Housing — 0.6%  
9,000,000 + Springshire Retirement LLC - Promissory Note, 9.00%, 4/1/23 $     9,000,000
  Total Retirement Housing     $ 9,000,000
  TOTAL DEBTORS IN POSSESSION FINANCING
(Cost $9,000,000)
    $ 9,000,000
  TOTAL INVESTMENTS IN UNAFFILIATED ISSUERS — 97.4%
(Cost $1,517,316,828)
$1,401,932,605
  OTHER ASSETS AND LIABILITIES — 2.6%    $ 37,459,938
  net assets — 100.0% $1,439,392,543
             
AGM Assured Guaranty Municipal Corp.
RIB Residual Interest Bond is purchased in a secondary market. The interest rate is subject to change periodically and inversely based upon prevailing market rates. The interest rate shown is the rate at February 28, 2023.
(144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At February 28, 2023, the value of these securities amounted to $419,045,874, or 29.1% of net assets.
(a) Consists of Revenue Bonds unless otherwise indicated.
(b) Security issued with a zero coupon. Income is recognized through accretion of discount.
(c) Represents a General Obligation Bond.
(d) Security is in default.
(e) The interest rate is subject to change periodically. The interest rate and/or reference index and spread shown at February 28, 2023.
(f) Pre-refunded bonds have been collateralized by U.S. Treasury or U.S. Government Agency securities which are held in escrow to pay interest and principal on the tax exempt issue and to retire the bonds in full at the earliest refunding date.
+ Security is valued using significant unobservable inputs (Level 3).
# Securities are restricted as to resale.
Restricted Securities Acquisition date Cost Value
Springshire Retirement LLC - Promissory Note 12/1/2021 $9,000,000 $9,000,000
% of Net assets     0.6%
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2331


Schedule of Investments  |  2/28/23
(unaudited) (continued)
The concentration of investments as a percentage of total investments by type of obligation/market sector is as follows:
Revenue Bonds:  
Tobacco Revenue 26.1%
Health Revenue 21.6 
Education Revenue 20.0 
Development Revenue 11.7 
Water Revenue 2.6 
Other Revenue 2.1 
Facilities Revenue 1.8 
Transportation Revenue 1.4 
Power Revenue 1.0 
Industrial Revenue 0.2 
Pollution Control Revenue 0.1 
Utilities Revenue 0.1 
  88.7%
General Obligation Bonds: 11.3%
  100.0%
Purchases and sales of securities (excluding short-term investments) for the six months ended February 28, 2023, aggregated $434,840,849 and $580,434,709, respectively.
Various inputs are used in determining the value of the Portfolio's investments. These inputs are summarized in the three broad levels below.
Level 1 unadjusted quoted prices in active markets for identical securities.
Level 2 other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risks, etc.).
Level 3 significant unobservable inputs (including the Adviser's own assumptions in determining fair value of investments).
The following is a summary of the inputs used as of February 28, 2023, in valuing the Portfolio's investments:
  Level 1 Level 2 Level 3 Total
Municipal Bonds $— $1,392,932,605 $ $1,392,932,605
Debtors in Possession Financing 9,000,000 9,000,000
Total Investments in Securities $ $ 1,392,932,605 $ 9,000,000 $ 1,401,932,605
During the period ended February 28, 2023, there were no significant transfers in or out of Level 3.
The accompanying notes are an integral part of these financial statements.
32Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Statement of Assets and Liabilities  |  2/28/23 (unaudited) 
ASSETS:  
Investments in unaffiliated issuers, at value (cost $1,517,316,828) $1,401,932,605
Cash 11,091,164
Receivables —  
Investment securities sold 6,101,075
Proceeds from contributions 2,655,841
Interest 26,668,979
Other assets 311,500
Total assets $1,448,761,164
LIABILITIES:  
Payables —  
Investment securities purchased $ 4,908,692
Value of withdrawals 4,341,977
Trustees' fees 12,638
Administrative expenses 49,252
Accrued expenses 56,062
Total liabilities $ 9,368,621
NET ASSETS:  
Paid-in capital $1,483,853,797
Distributable earnings (loss) (44,461,254)
Net assets $1,439,392,543
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23 33


Statement of Operations (unaudited) 
FOR THE SIX MONTHS ENDED 2/28/23
INVESTMENT INCOME:    
Interest from unaffiliated issuers $39,766,792  
Total Investment Income   $ 39,766,792
EXPENSES:    
Administrative expenses $ 46,723  
Transfer agent fees 4,377  
Consulting fees 21,614  
Custodian fees 11,440  
Professional fees 34,971  
Printing expense 1,690  
Officers' and Trustees' fees 41,603  
Miscellaneous 1,600  
Total expenses   $ 164,018
Net investment income   $ 39,602,774
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS:    
Net realized gain (loss) on:    
Investments in unaffiliated issuers   $ (65,194,089)
Change in net unrealized appreciation (depreciation) on:    
Investments in unaffiliated issuers   $ 420,503
Net realized and unrealized gain (loss) on investments   $(64,773,586)
Net decrease in net assets resulting from operations   $ (25,170,812)
The accompanying notes are an integral part of these financial statements.
34Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Statements of Changes in Net Assets
  Six Months
Ended
2/28/23
(unaudited)
Year
Ended
8/31/22
FROM OPERATIONS:    
Net investment income (loss) $ 39,602,774 $ 84,276,467
Net realized gain (loss) on investments (65,194,089) (49,557,811)
Change in net unrealized appreciation (depreciation) on investments 420,503 (223,692,236)
Net decrease in net assets resulting from operations $ (25,170,812) $ (188,973,580)
FROM CAPITAL TRANSACTIONS:    
Proceeds from contributions $ 344,890,233 $ 821,599,552
Value of withdrawals (499,613,926) (1,068,188,723)
Net decrease in net assets resulting from capital transactions $ (154,723,693) $ (246,589,171)
Net decrease in net assets $ (179,894,505) $ (435,562,751)
NET ASSETS:    
Beginning of period $1,619,287,048 $ 2,054,849,799
End of period $1,439,392,543 $ 1,619,287,048
The accompanying notes are an integral part of these financial statements.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2335


Financial Highlights  
  Six Months
Ended
2/28/23
(unaudited)
Year
Ended
8/31/22
12/21/20 to
8/31/21*
Total return (1.35)%(a) (9.34)% 6.30%(a)
Ratio of net expenses to average net assets 0.02%(b) 0.02% 0.02%(b)
Ratio of net investment income (loss) to average net assets 5.44%(b) 4.47% 3.07%(b)
Portfolio turnover rate 30%(a) 38% 11%(a)(c)
Net assets, end of period (in thousands) $1,439,393 $1,619,287 $2,054,850
* The Portfolio commenced operations on December 21, 2020.
(a) Not annualized.
(b) Annualized.
(c) The portfolio turnover rate excludes purchases and sales from the transfer of assets from Pioneer High Income Municipal Fund (see note 1).
The accompanying notes are an integral part of these financial statements.
36Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


Notes to Financial Statements  |  2/28/23
(unaudited)
1. Organization and Significant Accounting Policies
Pioneer High Income Municipal Portfolio (the “Portfolio”) is a diversified series of Pioneer Core Trust I (the “Trust”), an open-end management investment company established as a Delaware statutory trust on October 14, 2020. The Portfolio is registered under the Investment Company Act of 1940, as amended (the “1940 Act”) as a diversified, open-end management investment company. The investment objective of the Portfolio is to maximize total return through a combination of income that is exempt from regular federal income tax and capital appreciation.
The Declaration of Trust permits the Trustees to issue beneficial interests in the Portfolio. At February 28, 2023, all investors in the Portfolio were funds advised by the investment adviser of the Portfolio. At February 28, 2023, Pioneer High Income Municipal Fund owned approximately 99.999% of the Portfolio and Pioneer MAP - High Income Municipal Fund owned approximately 0.001% of the Portfolio. On December 21, 2020, the Pioneer High Income Municipal Fund transferred all of its investable assets, with a cost basis of $1,707,664,760 and a value of $1,760,998,235, to the Portfolio in exchange for an interest in the Portfolio. The transaction was structured to qualify as a tax-free exchange of assets.
Amundi Asset Management US, Inc., an indirect, wholly owned subsidiary of Amundi and Amundi’s wholly owned subsidiary, Amundi USA, Inc., serves as the Portfolio’s investment adviser (the “Adviser”). Amundi Distributor US, Inc., an affiliate of the Adviser, serves as the Portfolio’s placement agent.
In March 2020, FASB issued an Accounting Standard Update, ASU 2020-04, Reference Rate Reform (Topic 848) — Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides optional, temporary relief with respect to the financial reporting of contracts subject to certain types of modifications due to the planned discontinuation of the London Interbank Offered Rate (“LIBOR”) and other LIBOR-based reference rates at the end of 2021. The temporary relief provided by ASU 2020-04 is effective for certain reference rate-related contract modifications that occur during the period from March 12, 2020 through December 31, 2022. Management is evaluating the impact of ASU 2020-04 on the Portfolio’s investments, derivatives, debt and other contracts, if applicable, that will undergo reference rate-related modifications as a result of the reference rate reform.
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2337


The Portfolio is required to comply with Rule 18f-4 under the 1940 Act, which governs the use of derivatives by registered investment companies. Rule 18f-4 permits portfolios to enter into derivatives transactions (as defined in Rule 18f-4) and certain other transactions notwithstanding the restrictions on the issuance of “senior securities” under Section 18 of the 1940 Act. Rule 18f-4 requires a portfolio, to establish and maintain a comprehensive derivatives risk management program, appoint a derivatives risk manager and comply with a relative or absolute limit on portfolio leverage risk calculated based on value-at-risk (“VaR”), unless the portfolio uses derivatives in only a limited manner (a "limited derivatives user"). The Portfolio is currently a limited derivatives user for purposes of Rule 18f-4.
The Portfolio is an investment company and follows investment company accounting and reporting guidance under U.S. Generally Accepted Accounting Principles (“U.S. GAAP”). U.S. GAAP requires the management of the Portfolio to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gain or loss on investments during the reporting period. Actual results could differ from those estimates.
The following is a summary of significant accounting policies followed by the Portfolio in the preparation of its financial statements:
A. Security Valuation
  Investments are stated at value, computed once daily, on each day the New York Stock Exchange (“NYSE”) is open, as of the close of regular trading on the NYSE.
  Fixed-income securities are valued by using prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings, or may use a pricing matrix or other fair value methods or techniques to provide an estimated value of the security or instrument. A pricing matrix is a means of valuing a debt security on the basis of current market prices for other debt securities, historical trading patterns in the market for fixed-income securities and/or other factors. Non-U.S. debt securities that are listed on an exchange will be valued at the bid price obtained from an independent third party pricing service. When independent third party pricing services are unable to supply prices, or when prices or market quotations are considered to be unreliable, the value of that security may be determined using quotations from one or more broker-dealers.
38Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


  Securities for which independent pricing services or broker-dealers are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of the Adviser. Effective September 8, 2022, the Adviser is designated as the valuation designee for the Portfolio pursuant to Rule 2a-5 under the 1940 Act. The Adviser’s fair valuation team is responsible for monitoring developments that may impact fair valued securities.
  Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Adviser may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Portfolio’s net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Portfolio’s securities may differ significantly from exchange prices, and such differences could be material.
B. Investment Income and Transactions
  Interest income, including interest on income-bearing cash accounts, is recorded on the accrual basis. Dividend and interest income are reported net of unrecoverable foreign taxes withheld at the applicable country rates and net of income accrued on defaulted securities.
  Interest and dividend income payable by delivery of additional shares is reclassified as PIK (payment-in-kind) income upon receipt and is included in interest and dividend income, respectively.
  Security transactions are recorded as of trade date. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes.
  The Portfolio makes a daily allocation of its net investment income and realized and unrealized gains and losses from securities to its investors in proportion to their investment in the Portfolio.
C. Federal Income Taxes
  The Portfolio is classified as a partnership for federal income tax purposes. As such, each investor in the Portfolio is treated as the owner of its proportionate share of the net assets, income, expenses and realized and unrealized gains and losses of the Portfolio. Therefore, no federal income tax provision is required. It is intended that the
Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/2339


  Portfolio’s assets will be managed so an investor in the Portfolio can satisfy the requirements of Subchapter M of the Internal Revenue Code.
  Management has analyzed the Portfolio’s tax positions taken on income tax returns for all open tax years and has concluded no provision for income tax is required in the Portfolio’s financial statements. The Portfolio’s 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.
D. Risks
  The value of securities held by the Portfolio may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic, political or regulatory conditions, recessions, the spread of infectious illness or other public health issues, inflation, changes in interest rates, armed conflict including Russia's military invasion of Ukraine, sanctions against Russia, other nations or individuals or companies and possible countermeasures, lack of liquidity in the bond markets or adverse investor sentiment. In the past several years, financial markets have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. These conditions may continue, recur, worsen or spread. Recently, inflation and interest rates have increased and may rise further. These circumstances could adversely affect the value and liquidity of the Portfolio's investments, impair the Portfolio's ability to satisfy redemption requests, and negatively impact the Portfolio's performance. Raising the ceiling on U.S. government debt has become increasingly politicized. Any failure to increase the ceiling on U.S. government debt could lead to a default on U.S. government obligations, with unpredictable consequences for economies and markets.
  The global pandemic of the novel coronavirus respiratory disease designated COVID-19 has resulted in major disruption to economies and markets around the world, including the United States. Global financial markets have experienced extreme volatility and severe losses, and trading in many instruments has been disrupted. Liquidity for many instruments has been greatly reduced for periods of time. Some sectors of the economy and individual issuers have experienced particularly large losses. These circumstances may continue to affect adversely the value and liquidity of the Portfolio’s investments. Following Russia’s invasion of Ukraine, Russian securities have lost all, or nearly all, their
40Pioneer High Income Municipal Portfolio | Semiannual Report | 2/28/23


  market value. Other securities or markets could be similarly affected by past or future political, geopolitical or other events or conditions.
  Governments and central banks, including the U.S. Federal Reserve, have taken extraordinary and unprecedented actions to support local and global economies and the financial markets. These actions have resulted in significant expansion of public debt, including in the U.S. The consequences of high public debt, including its future impact on the economy and securities markets, may not be known for some time.
  The U.S. and other countries are periodically involved in disputes over trade and other matters, which may result in tariffs, investment restrictions and adverse impacts on affected companies and securities.  For example, the U.S. has imposed tariffs and other trade barriers on Chinese exports, has restricted sales of certain categories of goods to China, and has established barriers to investments in China.  Trade disputes may adversely affect the economies of the U.S. and its trading partners, as well as companies directly or indirectly affected and financial markets generally.  If the political climate between the U.S. and China does not improve or continues to deteriorate, if China were to attempt unification of Taiwan by force, or if other geopolitical conflicts develop or get worse, economies, markets and individual securities may be severely affected both regionally and globally, and the value of the Portfolio's assets may go down.
  At times, the Portfolio’s investments may represent industries or industry sectors that are interrelated or have common risks, making the Portfolio more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors.
  The municipal bond market can be susceptible to unusual volatility, particularly for lower-rated and unrated securities. Liquidity can be reduced unpredictably in response to overall economic conditions or credit tightening. Municipal issuers may be adversely affected by rising health care costs, increasing unfunded pension liabilities, and by the phasing out of federal programs providing financial support. Unfavorable conditions and developments relating to projects financed with municipal securities can result in lower revenues to issuers of municipal securities, potentially resulting in defaults. Issuers often depend on revenues from these projects to make principal and interest payments. The value of municipal securities can also be adversely affected by changes in the financial condition of one or more individual municipal issuers or insurers of municipal issuers, regulatory and political developments, tax law changes or other legislative actions, and by uncertainties and public perceptions concerning these and other factors.
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  Municipal securities may be more susceptible to downgrades or defaults during recessions or similar periods of economic stress. Financial difficulties of municipal issuers may continue or get worse, particularly in the event of political, economic or market turmoil or a recession. To the extent the Portfolio invests significantly in a single state (including California, Illinois, New York and Indiana), city, territory (including Puerto Rico), or region, or in securities the payments on which are dependent upon a single project or source of revenues, or that relate to a sector or industry, including health care facilities, education, transportation, special revenues and pollution control, the Portfolio will be more susceptible to associated risks and developments.
  The Portfolio invests in below-investment-grade (high-yield) debt securities and preferred stocks. Some of these high-yield securities may be convertible into equity securities of the issuer. Debt securities rated below-investment-grade are commonly referred to as “junk bonds” and are considered speculative with respect to the issuer's capacity to pay interest and repay principal. These securities involve greater risk of loss, are subject to greater price volatility, and may be less liquid and more difficult to value, especially during periods of economic uncertainty or change, than higher rated debt securities.
  The market prices of the Portfolio's fixed income securities may fluctuate significantly when interest rates change. The value of your investment will generally go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration securities. For example, if interest rates increase by 1%, the value of a Portfolio's portfolio with a portfolio duration of ten years would be expected to decrease by 10%, all other things being equal. In recent years interest rates and credit spreads in the U.S. have been at historic lows. The U.S. Federal Reserve has raised certain interest rates, and interest rates may continue to go up. A general rise in interest rates could adversely affect the price and liquidity of fixed income securities. The maturity of a security may be significantly longer than its effective duration. A security's maturity and other features may be more relevant than its effective duration in determining the security's sensitivity to other factors affecting the issuer or markets generally, such as changes in credit quality or in the yield premium that the market may establish for certain types of securities (sometimes called "credit spread"). In general, the longer its maturity the more a security may be susceptible to these factors. When the credit spread for a fixed income security goes up, or "widens," the value of the security will generally go down.
  If an issuer or guarantor of a security held by the Portfolio or a counterparty to a financial contract with the Portfolio defaults on its
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  obligation to pay principal and/or interest, has its credit rating downgraded or is perceived to be less creditworthy, or the credit quality or value of any underlying assets declines, the value of your investment will typically decline. Changes in actual or perceived creditworthiness may occur quickly. The Portfolio could be delayed or hindered in its enforcement of rights against an issuer, guarantor or counterparty.
  The Portfolio’s investments, payment obligations and financing terms may be based on floating rates, such as LIBOR (London Interbank Offered Rate) or SOFR (Secured Overnight Financing Rate). ICE Benchmark Administration, the administrator of LIBOR, ceased publication of most LIBOR settings on a representative basis at the end of 2021 and is expected to cease publication of a majority of U.S. dollar LIBOR settings on a representative basis after June 30, 2023. In addition, global regulators have announced that, with limited exceptions, no new LIBOR-based contracts should be entered into after 2021. Actions by regulators have resulted in the establishment of alternative reference rates to LIBOR in most major currencies. Markets are developing in response to these new rates, but questions around liquidity in these rates and how to appropriately adjust these rates to eliminate any economic value transfer at the time of transition remain a significant concern. The effect of any changes to - or discontinuation of - LIBOR on the Portfolio will vary depending on, among other things, existing fallback provisions in individual contracts and whether, how, and when industry participants develop and widely adopt new reference rates and fallbacks for both legacy and new products and instruments. The transition process may involve, among other things, increased volatility or illiquidity in markets for instruments that rely on LIBOR. The transition may also result in a reduction in the value of certain LIBOR-based investments held by the Portfolio or reduce the effectiveness of related transactions such as hedges. Any such effects of the transition away from LIBOR, as well as other unforeseen effects, could result in losses for the Portfolio. Because the usefulness of LIBOR as a benchmark may deteriorate during the transition period, these effects could occur at any time.
  With the increased use of technologies such as the Internet to conduct business, the Portfolio is susceptible to operational, information security and related risks. While the Portfolio’s Adviser has established business continuity plans in the event of, and risk management systems to prevent, limit or mitigate, such cyber-attacks, there are inherent limitations in such plans and systems, including the possibility that certain risks have not been identified. Furthermore, the Portfolio cannot control the cybersecurity plans and systems put in place by service
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  providers to the Portfolio such as the Portfolio’s custodian and accounting agent, and the Portfolio’s transfer agent. In addition, many beneficial owners of Portfolio shares hold them through accounts at broker-dealers, retirement platforms and other financial market participants over which neither the Portfolio nor the Adviser exercises control. Each of these may in turn rely on service providers to them, which are also subject to the risk of cyber-attacks. Cybersecurity failures or breaches at the Adviser or the Portfolio’s service providers or intermediaries have the ability to cause disruptions and impact business operations, potentially resulting in financial losses, interference with the Portfolio’s ability to calculate its net asset value, impediments to trading, the inability of investors in the Portfolio to purchase or withdraw interests in the Portfolio, loss of or unauthorized access to private investor information and violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, or additional compliance costs. Such costs and losses may not be covered under any insurance. In addition, maintaining vigilance against cyber-attacks may involve substantial costs over time, and system enhancements may themselves be subject to cyber-attacks.
  The Portfolio’s registration statement on Form N-1A contains unaudited information regarding the Portfolio’s principal risks. Please refer to that document when considering the Portfolio’s principal risks.
E. Restricted Securities
  Restricted Securities are subject to legal or contractual restrictions on resale. Restricted securities generally are resold in transactions exempt from registration under the Securities Act of 1933. Private placement securities are generally considered to be restricted except for those securities traded between qualified institutional investors under the provisions of Rule 144A of the Securities Act of 1933.
  Disposal of restricted investments may involve negotiations and expenses, and prompt sale at an acceptable price may be difficult to achieve. Restricted investments held by the Portfolio at February 28, 2023 are listed in the Schedule of Investments.
2. Management Agreement
The Adviser manages the Portfolio's portfolio. The Portfolio does not pay a management fee under the Portfolio's investment advisory agreement with the Adviser.
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3. Compensation of Officers and Trustees
The Portfolio pays an annual fee to its Trustees. The Adviser reimburses the Portfolio for fees paid to the Interested Trustees. Except for the chief compliance officer, the Portfolio does not pay any salary or other compensation to its officers. The Portfolio pays a portion of the chief compliance officer's compensation for his services as the Portfolio's chief compliance officer. Amundi US pays the remaining portion of the chief compliance officer's compensation. For the six months ended February 28, 2023, the Portfolio paid $41,603 in Officers' and Trustees’ compensation, which is reflected on the Statement of Operations as Officers' and Trustees’ fees. At February 28, 2023, on its Statement of Assets and Liabilities, the Portfolio had a payable for Trustees’ fees of $12,638 and a payable for administrative expenses of $49,252, which includes the payable for Officer's compensation.
4. Transfer Agent
BNY Mellon Investment Servicing (US) Inc. serves as the transfer agent to the Portfolio at negotiated rates.
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Approval of Renewal of Investment Management Agreement
Amundi Asset Management US, Inc. (“Amundi US”) serves as the investment adviser to Pioneer High Income Municipal Portfolio (the “Fund”) pursuant to an investment management agreement between Amundi US and the Fund.  In order for Amundi US to remain the investment adviser of the Fund, the Trustees of the Fund, including a majority of the Fund’s Independent Trustees, must determine annually whether to renew the investment management agreement for the Fund.
The contract review process began in January 2022 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. Contract review materials were provided to the Trustees in March 2022, July 2022 and September 2022. In addition, the Trustees reviewed and discussed the Fund’s performance at regularly scheduled meetings throughout the year, and took into account other information related to the Fund provided to the Trustees at regularly scheduled meetings, in connection with the review of the Fund’s investment management agreement.
In March 2022, the Trustees, among other things, discussed the memorandum provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Trustees in their deliberations regarding the renewal of the investment management agreement, and reviewed and discussed the qualifications of the investment management teams for the Fund, as well as the level of investment by the Fund’s portfolio managers in the Fund. In July 2022, the Trustees, among other things, reviewed the Fund’s management fees and total expense ratios, the financial statements of Amundi US and its parent companies, profitability analyses provided by Amundi US, and analyses from Amundi US as to possible economies of scale. The Trustees also reviewed the profitability of the institutional business of Amundi US as compared to that of Amundi US’s fund management business, and considered the differences between the fees and expenses of the Fund and the fees and expenses of Amundi US’s institutional accounts, as well as the different services provided by Amundi US to the Fund and to the institutional accounts. The Trustees further considered contract review materials, including additional materials received in response to the Trustees’ request, in September 2022.
At a meeting held on September 20, 2022, based on their evaluation of the information provided by Amundi US and third parties, the Trustees of the Fund, including the Independent Trustees voting separately advised by independent counsel, unanimously approved the renewal of the investment
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management agreement for another year. In approving the renewal of the investment management agreement, the Trustees considered various factors that they determined were relevant, including the factors described below. The Trustees did not identify any single factor as the controlling factor in determining to approve the renewal of the agreement.
Nature, Extent and Quality of Services
The Trustees considered the nature, extent and quality of the services that had been provided by Amundi US to the Fund, taking into account the investment objective and strategy of the Fund. The Trustees also reviewed Amundi US’s investment approach for the Fund and its research process. The Trustees considered the resources of Amundi US and the personnel of Amundi US who provide investment management services to the Fund. They also reviewed the amount of non-Fund assets managed by the portfolio managers of the Fund. They considered the non-investment resources and personnel of Amundi US that are involved in Amundi US’s services to the Fund, including Amundi US’s compliance, risk management, and legal resources and personnel. The Trustees noted the substantial attention and high priority given by Amundi US’s senior management to the Pioneer Fund complex, including with respect to the increasing regulation to which the Pioneer Funds are subject. The Trustees considered the effectiveness of Amundi US’s business continuity plan in response to the ongoing COVID-19 pandemic.
The Trustees considered that Amundi US supervises and monitors the performance of the Fund’s service providers and provides the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund’s business management and operations. The Trustees also considered that, as administrator, Amundi US is responsible for the administration of the Fund’s business and other affairs. The Trustees considered that the Fund reimburses Amundi US its pro rata share of Amundi US’s costs of providing administration services to the Pioneer Funds.
Based on these considerations, the Trustees concluded that the nature, extent and quality of services that had been provided by Amundi US to the Fund were satisfactory and consistent with the terms of the investment management agreement.
Performance of the Fund
In considering the Fund’s performance, the Trustees regularly review and discuss throughout the year data prepared by Amundi US and information comparing the Fund’s performance with the performance of its peer group of funds, as classified by Morningstar, Inc. (Morningstar), and with the
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performance of the Fund’s benchmark index. They also discuss the Fund’s performance with Amundi US on a regular basis. The Trustees’ regular reviews and discussions were factored into the Trustees’ deliberations concerning the renewal of the investment management agreement.
Management Fee and Expenses
The Trustees considered that the Fund does not pay a management fee. The Trustees considered that the Fund is a master fund in a master-feeder structure in which each feeder fund investing in the Fund has the same investment objective and policies as the Fund. The Trustees considered that each feeder fund investing in the Fund pays a management fee directly to Amundi US for its management services to the feeder fund, or is offered through a separately managed account program in which participants pay fees to Amundi US or an affiliate for management of the separately managed account. The Trustees concluded that the fee and expense structure for the Fund was reasonable in relation to the nature and quality of services provided by Amundi US.
Profitability
The Trustees considered information provided by Amundi US regarding the profitability of Amundi US with respect to the advisory services provided by Amundi US to the Fund, including the methodology used by Amundi US in allocating certain of its costs to the management of the Fund. The Trustees also considered Amundi US’s profit margin in connection with the overall operation of the Fund. They further reviewed the financial results, including the profit margins, realized by Amundi US from non-fund businesses. The Trustees considered Amundi US’s profit margins in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Trustees concluded that Amundi US’s profitability with respect to the management of the Fund was not unreasonable.
Economies of Scale
The Trustees considered Amundi US’s views relating to economies of scale in connection with the Pioneer Funds as fund assets grow and the extent to which any such economies of scale are shared with the Fund and Fund investors. The Trustees recognize that economies of scale are difficult to identify and quantify, and that, among other factors that may be relevant, are the following: fee levels, expense subsidization, investment by Amundi US in research and analytical capabilities and Amundi US’s commitment and resource allocation to the Fund. The Trustees noted that profitability also may be an indicator of the availability of any economies of scale,
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although profitability may vary for other reasons including due to reductions in expenses.  The Trustees concluded that economies of scale, if any, were being appropriately shared with the Fund.
Other Benefits
The Trustees considered the other benefits that Amundi US enjoys from its relationship with the Fund.  The Trustees considered the character and amount of fees paid or to be paid by the Fund, other than under the investment management agreement, for services provided by Amundi US and its affiliates. The Trustees further considered the revenues and profitability of Amundi US’s businesses other than the Fund business. To the extent applicable, the Trustees also considered the benefits to the Fund and to Amundi US and its affiliates from the use of “soft” commission dollars generated by the Fund to pay for research and brokerage services.
The Trustees considered that Amundi US is the principal U.S. asset management business of Amundi, which is one of the largest asset managers globally.  Amundi’s worldwide asset management business manages over $2.2 trillion in assets (including the Pioneer Funds). The Trustees considered that Amundi US’s relationship with Amundi creates potential opportunities for Amundi US and Amundi that derive from Amundi US’s relationships with the Fund, including Amundi’s ability to market the services of Amundi US globally.  The Trustees noted that Amundi US has access to additional research and portfolio management capabilities as a result of its relationship with Amundi and Amundi’s enhanced global presence that may contribute to an increase in the resources available to Amundi US. The Trustees considered that Amundi US and the Fund receive reciprocal intangible benefits from the relationship, including mutual brand recognition and, for the Fund, direct and indirect access to the resources of a large global asset manager. The Trustees concluded that any such benefits received by Amundi US as a result of its relationship with the Fund were reasonable.
Conclusion
After consideration of the factors described above as well as other factors, the Trustees, including the Independent Trustees, concluded that the investment management agreement for the Fund, including the fees payable thereunder, was fair and reasonable and voted to approve the proposed renewal of the investment management agreement.
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Trustees, Officers and Service Providers 
Trustees
Thomas J. Perna, Chairman
John E. Baumgardner, Jr.
Diane Durnin
Benjamin M. Friedman
Lisa M. Jones
Craig C. MacKay
Lorraine H. Monchak
Marguerite A. Piret
Fred J. Ricciardi
Kenneth J. Taubes
Officers
Lisa M. Jones, President and
Chief Executive Officer
Anthony J. Koenig, Jr., Treasurer
and Chief Financial and
Accounting Officer
Christopher J. Kelley, Secretary and
Chief Legal Officer
 
Investment Adviser and Administrator
Amundi Asset Management US, Inc.
Custodian and Sub-Administrator
The Bank of New York Mellon Corporation
Independent Registered Public Accounting Firm
Ernst & Young LLP
Placement Agent
Amundi Distributor US, Inc.
Legal Counsel
Morgan, Lewis & Bockius LLP
Transfer Agent
BNY Mellon Investment Servicing (US) Inc.
Proxy Voting Policies and Procedures of the Portfolio are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Portfolio voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to investors at www.amundi.com/us. This information is also available on the Securities and Exchange Commission’s web site at www.sec.gov.
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This report must be preceded or accompanied by the Portfolio's registration statement.
The Portfolio files a complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarters of each fiscal year as an exhibit to its reports on Form N-PORT. Investors may view the filed Form N-PORT by visiting the Commission’s web site at https://www.sec.gov.


Amundi Asset Management US, Inc.
60 State Street
Boston, MA 02109
www.amundi.com/us
© 2023 Amundi Asset Management US, Inc. 32956-01-0423


ITEM 2. CODE OF ETHICS.

(a) Disclose whether, as of the end of the period covered by the report, the registrant has adopted a code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. If the registrant has not adopted such a code of ethics, explain why it has not done so.

The registrant has adopted, as of the end of the period covered by this report, a code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer and controller.

(b) For purposes of this Item, the term “code of ethics” means written standards that are reasonably designed to deter wrongdoing and to promote:

(1) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships;

(2) Full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files with, or submits to, the Commission and in other public communications made by the registrant;

(3) Compliance with applicable governmental laws, rules, and regulations;

(4) The prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and

(5) Accountability for adherence to the code.

(c) The registrant must briefly describe the nature of any amendment, during the period covered by the report, to a provision of its code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item. The registrant must file a copy of any such amendment as an exhibit pursuant to Item 10(a), unless the registrant has elected to satisfy paragraph (f) of this Item by posting its code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by undertaking to provide its code of ethics to any person without charge, upon request, pursuant to paragraph (f)(3) of this Item.

The registrant has made no amendments to the code of ethics during the period covered by this report.

(d) If the registrant has, during the period covered by the report, granted a waiver, including an implicit waiver, from a provision of the code of ethics to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, that relates to one or more of the items set forth in paragraph (b) of this Item, the registrant must briefly describe the nature of the waiver, the name of the person to whom the waiver was granted, and the date of the waiver.


Not applicable.

(e) If the registrant intends to satisfy the disclosure requirement under paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from, a provision of its code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item by posting such information on its Internet website, disclose the registrant’s Internet address and such intention.

Not applicable.

(f) The registrant must:

(1) File with the Commission, pursuant to Item 12(a)(1), a copy of its code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, as an exhibit to its annual report on this Form N-CSR (see attachment);

(2) Post the text of such code of ethics on its Internet website and disclose, in its most recent report on this Form N-CSR, its Internet address and the fact that it has posted such code of ethics on its Internet website; or

(3) Undertake in its most recent report on this Form N-CSR to provide to any person without charge, upon request, a copy of such code of ethics and explain the manner in which such request may be made. See Item 10(2)

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

(a) (1) Disclose that the registrant’s Board of Trustees has determined that the registrant either:

(i) Has at least one audit committee financial expert serving on its audit committee; or

(ii) Does not have an audit committee financial expert serving on its audit committee.

The registrant’s Board of Trustees has determined that the registrant has at least one audit committee financial expert.

(2) If the registrant provides the disclosure required by paragraph (a)(1)(i) of this Item, it must disclose the name of the audit committee financial expert and whether that person is “independent.” In order to be considered “independent” for purposes of this Item, a member of an audit committee may not, other than in his or her capacity as a member of the audit committee, the Board of Trustees, or any other board committee:

(i) Accept directly or indirectly any consulting, advisory, or other compensatory fee from the issuer; or

(ii) Be an “interested person” of the investment company as defined in Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)).

Mr. Fred J. Ricciardi, an independent Trustee, is such an audit committee financial expert.

(3) If the registrant provides the disclosure required by paragraph (a)(1) (ii) of this Item, it must explain why it does not have an audit committee financial expert.

Not applicable.


ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

(a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant’s annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years.

N/A

(b) Disclose, under the caption AUDIT-RELATED FEES, the aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant’s financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category.

N/A

(c) Disclose, under the caption TAX FEES, the aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category.

N/A

(d) Disclose, under the caption ALL OTHER FEES, the aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category.

N/A

(e) (1) Disclose the audit committee’s pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X.

PIONEER FUNDS

APPROVAL OF AUDIT, AUDIT-RELATED, TAX AND OTHER SERVICES

PROVIDED BY THE INDEPENDENT AUDITOR

SECTION I - POLICY PURPOSE AND APPLICABILITY

The Pioneer Funds recognize the importance of maintaining the independence of their outside auditors. Maintaining independence is a shared responsibility involving Amundi Asset Management US, Inc., the audit committee and the independent auditors.

The Funds recognize that a Fund’s independent auditors: 1) possess knowledge of the Funds, 2) are able to incorporate certain services into the scope of the audit, thereby avoiding redundant work, cost and disruption of Fund personnel and processes, and 3) have expertise that has value to the Funds. As a result, there are situations where it is desirable to use the Fund’s independent auditors for services in addition to the annual audit and where the potential for conflicts of interests are minimal. Consequently, this policy, which is intended to comply with Rule 210.2-01(C)(7), sets forth guidelines and procedures to be followed by the Funds when retaining the independent audit firm to perform audit, audit-related tax and other services under those circumstances, while also maintaining independence.


Approval of a service in accordance with this policy for a Fund shall also constitute approval for any other Fund whose pre-approval is required pursuant to Rule 210.2-01(c)(7)(ii).

In addition to the procedures set forth in this policy, any non-audit services that may be provided consistently with Rule 210.2-01 may be approved by the Audit Committee itself and any pre-approval that may be waived in accordance with Rule 210.2-01(c)(7)(i)(C) is hereby waived.

Selection of a Fund’s independent auditors and their compensation shall be determined by the Audit Committee and shall not be subject to this policy.


SECTION II—POLICY
SERVICE CATEGORY    SERVICE CATEGORY DESCRIPTION                    SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES
I. AUDIT SERVICES    Services that are directly related to performing the independent audit of the Funds   

•  Accounting research assistance

 

•  SEC consultation, registration statements, and reporting

     

•  Tax accrual related matters

     

•  Implementation of new accounting standards

     

•  Compliance letters (e.g. rating agency letters)

     

•  Regulatory reviews and assistance regarding financial matters

     

•  Semi-annual reviews (if requested)

         

•  Comfort letters for closed end offerings

II. AUDIT-RELATED SERVICES    Services which are not prohibited under Rule 210.2-01(C)(4) (the “Rule”) and are related extensions of the audit services support the audit, or use the knowledge/expertise gained from the audit procedures as a foundation to complete the project. In most cases, if the Audit-Related Services are not performed by the Audit firm, the scope of the Audit Services would likely increase. The Services are typically well-defined and governed by accounting professional standards (AICPA, SEC, etc.)   

•  AICPA attest and agreed-upon procedures

 

•  Technology control assessments

 

•  Financial reporting control assessments

 

•  Enterprise security architecture assessment

 

AUDIT COMMITTEE APPROVAL POLICY    AUDIT COMMITTEE REPORTING POLICY
  

•  “One-time” pre-approval for the audit period for all pre-approved specific service subcategories. Approval of the independent auditors as auditors for a Fund shall constitute pre approval for these services.

  

•  A summary of all such services and related fees reported at each regularly scheduled Audit Committee meeting.

•  “One-time” pre-approval for the fund fiscal year within a specified dollar limit for all pre-approved specific service subcategories

  

•  A summary of all such services and related fees (including comparison to specified dollar limits) reported quarterly.


•  Specific approval is needed to exceed the pre-approved dollar limit for these services (see general Audit Committee approval policy below for details on obtaining specific approvals)

 

•  Specific approval is needed to use the Fund’s auditors for Audit-Related Services not denoted as “pre-approved”, or to add a specific service subcategory as “pre-approved”

  


SECTION III - POLICY DETAIL, CONTINUED

 

SERVICE CATEGORY    SERVICE CATEGORY DESCRIPTION   

SPECIFIC PRE-APPROVED

SERVICE

SUBCATEGORIES

III. TAX SERVICES    Services which are not prohibited by the Rule, if an officer of the Fund determines that using the Fund’s auditor to provide these services creates significant synergy in the form of efficiency, minimized disruption, or the ability to maintain a desired level of confidentiality.   

•  Tax planning and support

 

•  Tax controversy assistance

 

•  Tax compliance, tax returns, excise tax returns and support

 

•  Tax opinions

 

AUDIT COMMITTEE APPROVAL POLICY

  

AUDIT COMMITTEE REPORTING POLICY

•  “One-time” pre-approval for the fund fiscal year within a specified dollar limit

  

•  A summary of all such services and related fees (including comparison to specified dollar limits) reported quarterly.

•  Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals)

  

•  Specific approval is needed to use the Fund’s auditors for tax services not denoted as pre-approved, or to add a specific service subcategory as “pre-approved”

    


SECTION III - POLICY DETAIL, CONTINUED

 

SERVICE CATEGORY    SERVICE CATEGORY DESCRIPTION   

SPECIFIC PRE-APPROVED

SERVICE

SUBCATEGORIES

IV. OTHER SERVICES

 

A. SYNERGISTIC, UNIQUE QUALIFICATIONS

   Services which are not prohibited by the Rule, if an officer of the Fund determines that using the Fund’s auditor to provide these services creates significant synergy in the form of efficiency, minimized disruption, the ability to maintain a desired level of confidentiality, or where the Fund’s auditors posses unique or superior qualifications to provide these services, resulting in superior value and results for the Fund.   

•  Business Risk Management support

 

•  Other control and regulatory compliance projects

 

AUDIT COMMITTEE APPROVAL POLICY

  

AUDIT COMMITTEE REPORTING POLICY

•  “One-time” pre-approval for the fund fiscal year within a specified dollar limit

  

•  A summary of all such services and related fees (including comparison to specified dollar limits) reported quarterly.

•  Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals)

  

•  Specific approval is needed to use the Fund’s auditors for “Synergistic” or “Unique Qualifications” Other Services not denoted as pre-approved to the left, or to add a specific service subcategory as “pre-approved”

    


SECTION III - POLICY DETAIL, CONTINUED

 

SERVICE CATEGORY    SERVICE CATEGORY DESCRIPTION   

SPECIFIC PROHIBITED

SERVICE

SUBCATEGORIES

PROHIBITED SERVICES    Services which result in the auditors losing independence status under the Rule.    1. Bookkeeping or other services related to the accounting records or financial statements of the audit client*
      2. Financial information systems design and implementation*
      3. Appraisal or valuation services, fairness* opinions, or contribution-in-kind reports
      4. Actuarial services (i.e., setting actuarial reserves versus actuarial audit work)*
      5. Internal audit outsourcing services*
      6. Management functions or human resources
      7. Broker or dealer, investment advisor, or investment banking services
      8. Legal services and expert services unrelated to the audit
          9. Any other service that the Public Company Accounting Oversight Board determines, by regulation, is impermissible

 

AUDIT COMMITTEE APPROVAL POLICY    AUDIT COMMITTEE REPORTING POLICY

•  These services are not to be performed with the exception of the(*) services that may be permitted if they would not be subject to audit procedures at the audit client (as defined in rule 2-01(f)(4)) level the firm providing the service.

  

•  A summary of all services and related fees reported at each regularly scheduled Audit Committee meeting will serve as continual confirmation that has not provided any restricted services.


 

GENERAL AUDIT COMMITTEE APPROVAL POLICY:

 

   

For all projects, the officers of the Funds and the Fund’s auditors will each make an assessment to determine that any proposed projects will not impair independence.

 

   

Potential services will be classified into the four non-restricted service categories and the “Approval of Audit, Audit-Related, Tax and Other Services” Policy above will be applied. Any services outside the specific pre-approved service subcategories set forth above must be specifically approved by the Audit Committee.

 

   

At least quarterly, the Audit Committee shall review a report summarizing the services by service category, including fees, provided by the Audit firm as set forth in the above policy.

 

 

(2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

Non-Audit Services

N/A

(f) If greater than 50 percent, disclose the percentage of hours expended on the principal accountants engagement to audit the registrant’s financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant’s full-time, permanent employees.

N/A

(g) Disclose the aggregate non-audit fees billed by the registrants accountant for services rendered to the registrant, and rendered to the registrants investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant.

N/A

(h) Disclose whether the registrants audit committee of the Board of Trustees has considered whether the provision of non-audit services that were rendered to the registrants investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant’s independence.

The Fund’s audit committee of the Board of Trustees has considered whether the provision of non-audit services that were rendered to the Affiliates (as defined) that were not pre- approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant’s independence.


ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS

(a) If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act (17 CFR 240.10A-3), state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)). If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrant’s audit committee as specified in Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)), so state.

N/A

(b) If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption from the listing standards for audit committees.

N/A

ITEM 6. SCHEDULE OF INVESTMENTS.

File Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.1212 of Regulation S-X [17 CFR 210.12-12], unless the schedule is included as part of the report to shareholders filed under Item 1 of this Form.

Included in Item 1

ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

A closed-end management investment company that is filing an annual report on this Form N-CSR must, unless it invests exclusively in non-voting securities, describe the policies and procedures that it uses to determine how to vote proxies relating to portfolio securities, including the procedures that the company uses when a vote presents a conflict between the interests of its shareholders, on the one hand, and those of the company’s investment adviser; principal underwriter; or any affiliated person (as defined in Section 2(a)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules thereunder) of the company, its investment adviser, or its principal underwriter, on the other. Include any policies and procedures of the company’s investment adviser, or any other third party, that the company uses, or that are used on the company’s behalf, to determine how to vote proxies relating to portfolio securities.

Not applicable to open-end management investment companies.

ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

(a) If the registrant is a closed-end management investment company that is filing an annual report on this Form N-CSR, provide the following information:

(1) State the name, title, and length of service of the person or persons employed by or associated with the registrant or an investment adviser of the registrant who are primarily responsible for the day-to-day management of the registrant’s portfolio (“Portfolio Manager”). Also state each Portfolio Manager’s business experience during the past 5 years.

Not applicable to open-end management investment companies.

ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.


(a) If the registrant is a closed-end management investment company, in the following tabular format, provide the information specified in paragraph (b) of this Item with respect to any purchase made by or on behalf of the registrant or any affiliated purchaser, as defined in Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of shares or other units of any class of the registrant’s equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781).

Not applicable to open-end management investment companies.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Describe any material changes to the procedures by which shareholders may recommend nominees to the registrant’s board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R(17 CFR 229.407)(as required by Item 22(b)(15)) of Schedule 14A (17 CFR 240.14a-101), or this Item.

There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant’s board of directors since the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R of Schedule 14(A) in its definitive proxy statement, or this item.

ITEM 11. CONTROLS AND PROCEDURES.

(a) Disclose the conclusions of the registrant’s principal executive and principal financials officers, or persons performing similar functions, regarding the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR 270.30(a)-3(b) and Rules 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR 240.13a-15(b) or 240.15d-15(b)).

The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures are effective based on the evaluation of these controls and procedures as of a date within 90 days of the filing date of this report.

(b) Disclose any change in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17CFR 270.30a-3(d)) that occurred during 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.

There were no significant changes in the registrant’s internal control over financial reporting that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.


Item 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

(a) If the registrant is a closed-end management investment company, provide the following dollar amounts of income and compensation related to the securities lending activities of the registrant during its most recent fiscal year:

N/A

(1) Gross income from securities lending activities;

N/A

(2) All fees and/or compensation for each of the following securities lending activities and related services: any share of revenue generated by the securities lending program paid to the securities lending agent(s) (revenue split); fees paid for cash collateral management services (including fees deducted from a pooled cash collateral reinvestment vehicle) that are not included in the revenue split; administrative fees that are not included in the revenue split; fees for indemnification that are not included in the revenue split; rebates paid to borrowers; and any other fees relating to the securities lending program that are not included in the revenue split, including a description of those other fees;

N/A

(3) The aggregate fees/compensation disclosed pursuant to paragraph (2); and

N/A

(4) Net income from securities lending activities (i.e., the dollar amount in paragraph (1) minus the dollar amount in paragraph (3)).

If a fee for a service is included in the revenue split, state that the fee is included in the revenue split.

N/A

(b) If the registrant is a closed-end management investment company, describe the services provided to the registrant by the securities lending agent in the registrants most recent fiscal year.

N/A

ITEM 13. EXHIBITS.

(a) File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated.

(1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit.

(2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2(a)) , exactly as set forth below: Filed herewith.

(b) Certifications pursuant to Rule 30a-2(b) under the 1940 Act and Section  906 of the Sarbanes-Oxley Act of 2002 are attached hereto.


SIGNATURES

[See General Instruction F]

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.

(Registrant) Pioneer Core Trust I

By (Signature and Title)* /s/ Lisa M. Jones

Lisa M. Jones, President and Chief Executive Officer

Date May 3, 2023

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 (Signature and Title)* /s/ Lisa M. Jones

Lisa M. Jones, President and Chief Executive Officer

Date May 3, 2023

By (Signature and Title)* /s/ Anthony J. Koenig, Jr.

Anthony J. Koenig, Jr., Managing Director, Chief Operations Officer & Treasurer of the Funds

Date May 3, 2023

 

*

Print the name and title of each signing officer under his or her signature.