RidgeWorth Seix U.S. Mortgage Fund

SEIX U.S. MORTGAGE FUND (FORMERLY, LIMITED-TERM FEDERAL MORTGAGE SECURITIES FUND)

Summary Section

A Shares, C Shares and I Shares

Investment Objective

The Seix U.S. Mortgage Fund (the “Fund”) seeks to maximize long term total return through a combination of current income and capital appreciation, consistent with capital preservation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in RidgeWorth Funds. More information about these and other discounts is available from your financial professional and in Sales Charges on page 75 of the Fund’s prospectus and Rights of Accumulation on page 73 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - RidgeWorth Seix U.S. Mortgage Fund	A Shares	C Shares	I Shares
Maximum Sales Charge (load) Imposed on Purchases (as a % of offering price)	2.50%	none	none
Maximum Deferred Sales Charge (load) (as a % of the net asset value)	none	1.00%	none

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - RidgeWorth Seix U.S. Mortgage Fund		A Shares	C Shares	I Shares
Management Fees		0.40%	0.40%	0.40%
Distribution (12b-1) Fees		0.20%	1.00%	none
Other Expenses	[1]	0.73%	0.65%	0.76%
Total Annual Fund Operating Expenses		1.33%	2.05%	1.16%
Fee Waivers and/or Expense Reimbursements	[2]	(0.43%)	(0.40%)	(0.46%)
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.90%	1.65%	0.70%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that you reinvest all dividends and distributions. The example reflects contractual fee waivers and reimbursements for the first year only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - RidgeWorth Seix U.S. Mortgage Fund - USD ($)	1 year	3 years	5 years	10 years
A Shares	340	620	920	1,775
C Shares	268	604	1,067	2,347
I Shares	72	323	594	1,368

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - RidgeWorth Seix U.S. Mortgage Fund - USD ($)	1 year	3 years	5 years	10 years
A Shares	340	620	920	1,775
C Shares	168	604	1,067	2,347
I Shares	72	323	594	1,368

Portfolio Turnover

The Fund pays transaction costs, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 165% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in U.S. government agency mortgage-backed securities, such as the Federal National Mortgage Association ("FNMA"), Government National Mortgage Association ("GNMA") and collateralized mortgage obligations. The Fund may invest a portion of its assets in securities that are restricted as to resale. As a result of its investment strategy, the Fund's portfolio turnover rate may be 100% or more.

Buy and sell decisions are based on a wide number of factors that determine the risk-reward profile of each security within the context of the broader portfolio. In selecting investments for purchase and sale the Subadviser attempts to identify mortgage securities that it expects to perform well in rising and falling markets, such as those which have stable pre-payments, call protection, below par prices, and refinancing barriers. The Subadviser also attempts to reduce the risk that the underlying mortgages are prepaid by focusing on securities that it believes are less prone to this risk. For example, FNMA or GNMA securities that were issued years ago may be less prone to prepayment risk because there have been many opportunities for refinancing.

The Fund's Subadviser, Seix Investment Advisors LLC ("Seix" or the "Subadviser") anticipates that the Fund's modified-adjusted duration will mirror that of the Barclays U.S. Mortgage-Backed Securities Index, plus or minus 20%. For example, if the duration of the Barclays U.S. Mortgage-Backed Securities Index is 5 years, the Fund's duration may be 4–6 years. Duration measures a bond or Fund's sensitivity to interest rate changes and is expressed as a number of years. The higher the number, the greater the risk. Under normal circumstances, for example, if a portfolio has a duration of 5 years, its value will change by 5% if rates change by 1%. Shorter duration bonds result in lower expected volatility. The Fund may invest a portion of its assets in securities that are restricted as to resale.

In addition, to implement its investment strategy, the Fund may buy or sell, to a limited extent, derivative instruments (such as credit linked notes, futures, options, inverse floaters, swaps and warrants) to use as a substitute for a purchase or sale of a position in the underlying assets and/or as part of a strategy designed to reduce exposure to other risks, such as interest rate risk and credit risk. Further, the Fund may utilize exchange traded futures to manage interest rate exposure.

Principal Investment Risks

You may lose money if you invest in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Debt Securities Risk: Debt securities, such as bonds, involve credit risk. Credit risk is the risk that the borrower will not make timely payments of principal or interest or will default. Changes in an issuer's credit rating or the market's perception of an issuer's creditworthiness may also affect the value of the Fund's investment in that issuer. The degree of credit risk depends on the issuer's financial condition and on the terms of the securities.

Debt securities are also subject to interest rate risk, which is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter term securities.

Derivatives Risk: In the course of pursuing its investment strategies, the Fund may invest in certain types of derivatives including swaps, foreign currency forward contracts and futures. The Fund is exposed to additional volatility and potential loss with these investments. Losses in these investments may exceed the Fund's initial investment. Derivatives may be difficult to value, may become illiquid and may not correlate perfectly with the overall securities market.

Frequent Trading Risk: Frequent buying and selling of investments may involve higher trading costs and other expenses and may affect the Fund's performance over time. High rates of portfolio turnover may result in the realization of short-term capital gains and losses. The payment of taxes on these gains could adversely affect your after tax return on your investment in the Fund. Any distributions resulting from such gains or losses may be considered ordinary income for federal income tax purposes.

Futures Contract Risk: The risks associated with futures include: the Subadviser's ability to manage these instruments, the potential inability to terminate or sell a position, the lack of a liquid secondary market for the Fund's position, mispricing or improper valuation and that the other party to a derivative transaction will not meet its obligations. The prices of derivatives may move in unexpected ways, especially in unusual market conditions, and may result in increased volatility and unexpected losses.

A liquid secondary market may not always exist for the Fund's derivative positions at any time. In fact, many over-the-counter instruments (instruments not traded on exchange) may not be liquid. Over-the-counter instruments also involve the risk that the other party to the derivative transaction will not meet its obligations.

Mortgage-Backed and Asset-Backed Securities Risk: Mortgage- and asset-backed securities are debt instruments that are secured by interests in pools of mortgage loans or other financial assets. The value of these securities will be influenced by the factors affecting the assets underlying such securities, swings in interest rates, changes in default rates, or deteriorating economic conditions.

During periods of declining asset values, mortgage-backed and asset-backed securities may face valuation difficulties and may become more volatile and/or illiquid. The risk of default is generally higher in the case of securities backed by loans made to borrowers with "sub-prime" credit metrics.

If market interest rates increase substantially and the Fund's adjustable-rate securities are not able to reset to market interest rates during any one adjustment period, the value of the Fund's holdings and its net asset value may decline until the adjustable-rate securities are able to reset to market rates. In the event of a dramatic increase in interest rates, the lifetime limit on a security's interest rate may prevent the rate from adjusting to prevailing market rates. In such an event, the security could underperform and affect the Fund's net asset value.

Prepayment and Call Risk: During periods of falling interest rates, an issuer of a callable bond held by the Fund may "call" or prepay the bond before its stated maturity date. When mortgages and other obligations are prepaid and when securities are called, the Fund may have to reinvest the proceeds in securities with a lower yield or fail to recover additional amounts paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decline in the Fund's income.

Restricted Securities Risk: Certain debt securities may be restricted securities, which are not registered with the SEC and thus may not be sold publicly until registration has been made. Therefore, there is the absence of a public market and there is limited investor information.

Swap Risk: The Fund may enter into swap agreements, including credit default and interest rate swaps, for purposes of attempting to gain exposure to a particular asset without actually purchasing that asset or to hedge a position. Credit default swaps may increase or decrease the Fund's exposure to credit risk and could result in losses if the Subadviser does not correctly evaluate the creditworthiness of the entity on which the credit default swap is based. Swap agreements may also subject the Fund to the risk that the counterparty to the transaction may not meet its obligations.

U.S. Government Securities Risk: U.S. Treasury securities are backed by the full faith and credit of the U.S. government, while other types of securities issued or guaranteed by federal agencies, instrumentalities, and U.S. government-sponsored entities may or may not be backed by the full faith and credit of the U.S. government. U.S. government securities may underperform other segments of the fixed income market or the fixed income market as a whole.

Performance

The bar chart and the performance table that follow illustrate the risks and volatility of an investment in the Fund. The Fund’s past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available by contacting the RidgeWorth Funds at 1-888-784-3863 or by visiting www.ridgeworth.com.

The annual returns in the bar chart which follows are for the I Shares without reflecting payment of any sales charge; if they did reflect such payment of sales charges, annual returns would be lower.

The following table compares the Fund's average annual total returns for the periods indicated with those of a broad measure of market performance.

This bar chart shows the changes in performance of the Fund’s I Shares from year to year.

Best Quarter	Worst Quarter
4.10%	-2.46%
(12/31/2008)	(6/30/2013)

AVERAGE ANNUAL TOTAL RETURNS
(for periods ended December 31, 2014)

Average Annual Total Returns - RidgeWorth Seix U.S. Mortgage Fund	1 Year	5 Years	10 Years
A Shares	3.68%	3.28%	3.84%
C Shares	4.56%	2.97%	3.29%
I Shares	6.59%	4.00%	4.30%
I Shares | Return After Taxes on Distributions	5.54%	3.15%	3.07%
I Shares | Return After Taxes on Distributions and Sale of Fund Shares	3.71%	2.75%	2.86%
Barclays U.S. Mortgage-Backed Securities Index (reflects no deduction for fees, expenses or taxes)	6.08%	3.73%	4.75%

After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”). After-tax returns are shown for only the I Shares. After-tax returns for other share classes will vary.

[1] Restated to reflect current fees.

[2] The Adviser and Subadviser have contractually agreed to waive fees and reimburse expenses until at least August 1, 2016, in order to keep Total Annual Fund Operating Expenses (excluding, as applicable, taxes, brokerage commissions, substitute dividend expenses on securities sold short, interest expense, extraordinary expenses and Acquired Fund Fees and Expenses) from exceeding 0.90%, 1.65% and 0.70% for the A, C and I Shares, respectively. This agreement shall terminate upon the termination of the Investment Advisory Agreement between RidgeWorth Funds and the Adviser, or it may be terminated upon written notice to the Adviser by RidgeWorth Funds.

[1] The performance information shown above is based on a calendar year. The Fund's total return for the six months ended June 30, 2015 was 0.68%.