UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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RIDGEWORTH FUNDS

(Name of Registrant as Specified In Its Charter)

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ATTENTION MUTUAL FUNDS TRADING DEPARTMENTS RE: RidgeWorth Funds NSCC Participant #4920 Important Notice: RidgeWorth Funds Update on Virtus Acquisition Please see the below for important RidgeWorth Funds’ (Funds) information concerning the shareholder proxy and future operational updates in connection with Virtus Investment Partners’ acquisition of RidgeWorth Investments. We anticipate these updates to be effective in second quarter 2017, subject to fund shareholder approvals and other closing conditions. Once the effective date of these changes is determined, a follow-up communication will be sent to your firm. Shareholder Proxy and Special Meeting of Shareholders Date of Special Shareholder Meeting: May 9, 2017 The Funds’ shareholders who own shares as of February 17, 2017 were sent proxy materials in March 2017 and have been asked to vote on the reorganization of their respective RidgeWorth fund(s) into a corresponding Virtus fund(s). The attached Appendix A lists the acquired and acquiring funds. The Funds have retained a proxy solicitor to assist in this effort, so certain shareholders may receive follow-up mailing(s) and/or phone call(s) if their shares are not yet voted. Please encourage your clients to vote their shares if they have not yet voted. Intermediary firms and shareholders can contact the Funds at 1-888-784-3863 with any questions and to request proxy materials. If shareholders do not approve the reorganizations on May 9, 2017, a follow-up communication will be sent to your firm with updated information. Future Operational Changes and Impacts Timing of Updates: Second quarter 2017 (the effective date of these changes is contingent on the transaction close date and will be communicated to your firm at a later date) New CUSIPs and Fund Name Changes – The attached Appendix A contains new CUSIPs and updated fund names. Sales Charges and Finder Fees Updates – The attached Appendix B contains updates to the Funds’ A Shares sales charges and finder fees. The Funds’ C Shares CDSC, up-front dealer payout, and 12b-1 payout will remain unchanged. 12b-1 Dealer Payouts – The Funds’ A Shares 12b-1 dealer payouts will remain unchanged except for the Seix U.S. Mortgage Fund and Seix Short-Term Bond Fund. The attached Appendix B reflects this update. Initial and Additional Investment Minimum Updates – The attached Appendix C contains updates to the Funds’ initial and additional investment minimums. Please contact RidgeWorth Funds at 1-888-784-3863 should you have any questions regarding this notice. We thank you for your support of RidgeWorth Funds and will continue to provide you updated communications throughout the transition. *For Broker Dealer Use Only* All investments involve risk. There is no guarantee a specific investment strategy will be successful. Before investing, investors should carefully read the prospectus or summary prospectus and consider the fund’s investment objectives, risks, charges and expenses. Please call 888.784.3863 or visit ridgeworth.com to obtain a prospectus or summary prospectus, which contains this and other information about the funds. ©2017 RidgeWorth Investments. All rights reserved. RidgeWorth Investments is the trade name for RidgeWorth Capital Management LLC, an investment adviser registered with the SEC and the adviser to the RidgeWorth Funds. RidgeWorth Funds are distributed by RidgeWorth Distributors LLC, which is not affiliated with the adviser.

APPENDIX A: New Fund Names and CUSIPs Reorganization Date: Estimated Second Quarter 2017 Effective Date of New Fund Names and CUSIPs: Estimated Second Quarter 2017 Updated Current Share Current Fund Reorganize Share Class Updated Fund RidgeWorth Acquired Funds Class Name CUSIPs Ticker Number into New Virtus Acquring Shell Funds Name CUSIPs Ticker Number A Shares 76628R664 SVIIX 5513 Class A 92837F524 SVIIX 5513 C Shares 76628R656 SVIFX 5563 Class C 92837F516 SVIFX 5563 RidgeWorth Ceredex Large Cap Value Equity Fund Virtus Ceredex Large-Cap Value Equity Fund I Shares 76628R672 STVTX 5512 Class I 92837F490 STVTX 5512 IS Shares 76628T173 STVZX 5993 Class IS 92837F482 STVZX 5993 A Shares 76628R599 SAMVX 5724 Class A 92837F474 SAMVX 5724 C Shares 76628R581 SMVFX 5411 Class C 92837F466 SMVFX 5411 RidgeWorth Ceredex Mid-Cap Value Equity Fund Virtus Ceredex Mid-Cap Value Equity Fund I Shares 76628R615 SMVTX 5412 Class I 92837F458 SMVTX 5412 IS Shares 76628T165 SMVZX 5994 Class IS 92837F441 SMVZX 5994 A Shares 76628R466 SASVX 5728 Class A 92837F433 SASVX 5728 RidgeWorth Ceredex Small Cap Value Equity Fund C Shares 76628R458 STCEX 5552 Virtus Ceredex Small-Cap Value Equity Fund Class C 92837F425 STCEX 5552 I Shares 76628R474 SCETX 5588 Class I 92837F417 SCETX 5588 A Shares 76628R730 STCIX 5511 Class A 92837F391 STCIX 5511 C Shares 76628R722 STCFX 5562 Class C 92837F383 STCFX 5562 RidgeWorth Silvant Large Cap Growth Stock Fund Virtus Silvant Large-Cap Growth Stock Fund I Shares 76628R748 STCAX 5510 Class I 92837F375 STCAX 5510 IS Shares 76628T157 STCZX 5995 Class IS 92837F367 STCZX 5995 A Shares 76628R490 SCGIX 5272 Class A 92837F359 SCGIX 5272 C Shares 76628R482 SSCFX 5613 Class C 92837F342 SSCFX 5613 RidgeWorth Silvant Small Cap Growth Stock Fund Virtus Silvant Small-Cap Growth Stock Fund I Shares 76628R516 SSCTX 5614 Class I 92837F334 SSCTX 5614 IS Shares 76628T140 SCGZX 5996 Class IS 92837F326 SCGZX 5996 A Shares 76628R201 SAGAX 5403 Class A 92837F318 SAGAX 5403 RidgeWorth Innovative Growth Stock Fund Virtus Zevenbergen Innovative Growth Stock Fund I Shares 76628R102 SCATX 5558 Class I 92837F292 SCATX 5558 A Shares 76628R839 SCIIX 5541 Class A 92837F284 SCIIX 5541 RidgeWorth International Equity Fund I Shares 76628R847 STITX 5540 Virtus WCM International Equity Fund Class I 92837F276 STITX 5540 IS Shares 76628U303 SCIZX 5980 Class IS 92837F268 SCIZX 5980 A Shares 76628R359 SVCAX 5713 Class A 92837F250 SVCAX 5713 RidgeWorth Conservative Allocation Strategy C Shares 76628R334 SCCLX 5715 Virtus Conservative Allocation Strategy Fund Class C 92837F243 SCCLX 5715 I Shares 76628R367 SCCTX 5714 Class I 92837F235 SCCTX 5714 A Shares 76628R318 SGIAX 5717 Class A 92837F227 SGIAX 5717 RidgeWorth Growth Allocation Strategy* C Shares 76628R284 SGILX 5716 Virtus Growth Allocation Strategy Fund Class C 92837F219 SGILX 5716 I Shares 76628R326 CLVGX 5972 Class I 92837F193 CLVGX 5972 A Shares 76628R268 SVMAX 5718 Class A 92837F227 SGIAX 5717 RidgeWorth Moderate Allocation Strategy* C Shares 76628R243 SVGLX 5720 Virtus Growth Allocation Strategy Fund Class C 92837F219 SGILX 5716 I Shares 76628R276 CLVBX 5971 Class I 92837F193 CLVGX 5972 A Shares 76628T769 SLTMX 5535 Class A 92837F185 SLTMX 5535 RidgeWorth Seix U.S. Mortgage Fund C Shares 76628T751 SCLFX 5574 Virtus Seix U.S. Mortgage Fund Class C 92837F177 SCLFX 5574 I Shares 76628T777 SLMTX 5534 Class I 92837F169 SLMTX 5534 RidgeWorth Seix Limited Duration Fund I Shares 76628T819 SAMLX 5811 Virtus Seix Limited Duration Fund Class I 92837F151 SAMLX 5811 A Shares 76628T868 STGIX 5507 Class A 92837F102 STGIX 5507 R Shares 76628T850 SCIGX 5560 Class R 92837F201 SCIGX 5560 RidgeWorth Seix Core Bond Fund Virtus Seix Core Bond Fund I Shares 76628T876 STIGX 5506 Class I 92837F300 STIGX 5506 IS Shares 76628U204 STGZX 5738 Class IS 92837F409 STGZX 5738 A Shares 76628T538 SAINX 5730 Class A 92837F508 SAINX 5730 RidgeWorth Seix Corporate Bond Fund C Shares 76628T520 STIFX 5413 Virtus Seix Corporate Bond Fund Class C 92837F607 STIFX 5413 I Shares 76628T546 STICX 5414 Class I 92837F706 STICX 5414 A Shares 76628T496 CBPSX 5801 Class A 92837F805 CBPSX 5801 R Shares 76628T488 SCBLX 5803 Class R 92837F888 SCBLX 5803 RidgeWorth Seix Total Return Bond Fund Virtus Seix Total Return Bond Fund I Shares 76628T512 SAMFX 5800 Class I 92837F870 SAMFX 5800 IS Shares 76628T132 SAMZX 5997 Class IS 92837F862 SAMZX 5997 A Shares 76628T595 STSBX 5517 Class A 92837F854 STSBX 5517 RidgeWorth Seix Short-Term Bond Fund C Shares 76628T587 SCBSX 5565 Virtus Seix Short-Term Bond Fund Class C 92837F847 SCBSX 5565 I Shares 76628T611 SSBTX 5516 Class I 92837F839 SSBTX 5516

Updated Current Share Current Fund Reorganize Share Class Updated Fund RidgeWorth Acquired Funds Class Name CUSIPs Ticker Number into New Virtus Acquring Shell Funds Name CUSIPs Ticker Number RidgeWorth Seix U.S. Government Securities Ultra-Short I 76628T439 SIGVX 5932 Virtus Seix U.S. Government Securities Ultra-Short Bond Class I 92837F821 SIGVX 5932 Bond Fund IS 76628U808 SIGZX 6000 Fund Class IS 92837F813 SIGZX 6000 RidgeWorth Seix Ultra-Short Bond Fund I 76628T470 SISSX 5935 Virtus Seix Ultra-Short Bond Fund Class I 92837F797 SISSX 5935 A Shares 76628T660 SFRAX 5201 Class A 92837F789 SFRAX 5201 C Shares 76628T652 SFRCX 5202 Class C 92837F771 SFRCX 5202 RidgeWorth Seix Floating Rate High Income Fund Virtus Seix Floating Rate High Income Fund I Shares 76628T678 SAMBX 5203 Class I 92837F763 SAMBX 5203 IS Shares 76628U105 SFRZX 5999 Class IS 92837F755 SFRZX 5999 A Shares 76628T504 SAHIX 5709 Class A 92837F748 SAHIX 5709 R Shares 76628T603 STHIX 5064 Class R 92837F730 STHIX 5064 RidgeWorth Seix High Income Fund Virtus Seix High Income Fund I Shares 76628T405 STHTX 5615 Class I 92837F722 STHTX 5615 IS Shares 76628T124 STHZX 5998 Class IS 92837F714 STHZX 5998 A Shares 76628T637 HYPSX 5856 Class A 92837F698 HYPSX 5856 R Shares 76628T629 HYLSX 5858 Class R 92837F680 HYLSX 5858 RidgeWorth Seix High Yield Fund Virtus Seix High Yield Fund I Shares 76628T645 SAMHX 5855 Class I 92837F672 SAMHX 5855 IS Shares 76628U709 HYIZX 6001 Class IS 92837F664 HYIZX 6001 A Shares 76628R128 SGTEX 5527 Class A 92837F656 SGTEX 5527 RidgeWorth Seix Georgia Tax-Exempt Bond Fund Virtus Seix Georgia Tax-Exempt Bond Fund I Shares 76628R136 SGATX 5526 Class I 92837F649 SGATX 5526 A Shares 76628T207 SFLTX 5525 Class A 92837F631 SFLTX 5525 RidgeWorth Seix High Grade Municipal Bond Fund Virtus Seix High Grade Municipal Bond Fund I Shares 76628T108 SCFTX 5524 Class I 92837F623 SCFTX 5524 A Shares 76628T835 SISIX 5509 Class A 92837F615 SISIX 5509 RidgeWorth Seix Investment Grade Tax-Exempt Bond Fund Virtus Seix Investment Grade Tax-Exempt Bond Fund I Shares 76628T843 STTBX 5508 Class I 92837F599 STTBX 5508 A Shares 76628T694 SNCIX 5722 Class A 92837F581 SNCIX 5722 RidgeWorth Seix North Carolina Tax-Exempt Bond Fund Virtus Seix North Carolina Tax-Exempt Bond Fund I Shares 76628T710 CNCFX 5721 Class I 92837F573 CNCFX 5721 A Shares 76628T736 SMMAX 5719 Class A 92837F565 SMMAX 5719 RidgeWorth Seix Short-Term Municipal Bond Fund Virtus Seix Short-Term Municipal Bond Fund I Shares 76628T744 CMDTX 5979 Class I 92837F557 CMDTX 5979 A Shares 76628T413 CVIAX 5978 Class A 92837F540 CVIAX 5978 RidgeWorth Seix Virginia Intermediate Municipal Bond Fund Virtus Seix Virginia Intermediate Municipal Bond Fund I Shares 76628T421 CRVTX 5977 Class I 92837F532 CRVTX 5977

*The RidgeWorth Growth Allocation Strategy and RidgeWorth Moderate Allocation Strategy will both reorganize into the Virtus Growth Allocation Strategy Fund.

Class A Virtus Equity Funds & Virtus Allocation Strategy Funds Effective Date: Estimated 2nd Quarter 2017 Asset Levels Sales Charge Dealer Payout CDSC CDSC Annual 12b-1 Month 12b-1 Hold Payout Payout Begins Less than $50,000 5.75% 5.00% N/A N/A 0.25% 1 $50,000 but under $100,000 4.75% 4.25% N/A N/A 0.25% 1 $100,000 but under $250,000 3.75% 3.25% N/A N/A 0.25% 1 $250,000 but under $500,000 2.75% 2.25% N/A N/A 0.25% 1 $500,000 but under $1,000,000 2.00% 1.75% N/A N/A 0.25% 1 $1,000,000 -$3,000,000 None 1.00% 1.00% 18 months 0.25% 12 $3,000,001-$10,000,000 None 0.50% 1.00% 18 months 0.25% 12 Greater than $10,000,000 None 0.25% 1.00% 18 months 0.25% 12 Class A Virtus Seix High Yield, Virtus Seix Corporate Bond, Virtus Seix High Income, Virtus Seix Total Return Bond & Virtus Seix Core Bond Effective Date: Estimated 2nd Quarter 2017 Asset Levels Sales Charge Dealer Payout CDSC CDSC Annual 12b-1 Month 12b-1 Hold Payout Payout Begins Less than $50,000 3.75% 3.25% N/A N/A 0.25% 1 $50,000 but under $100,000 3.50% 3.00% N/A N/A 0.25% 1 $100,000 but under $250,000 3.25% 2.75% N/A N/A 0.25% 1 $250,000 but under $500,000 2.25% 2.00% N/A N/A 0.25% 1 $500,000 but under $1,000,000 1.75% 1.50% N/A N/A 0.25% 1 $1,000,000 -$3,000,000 None 0.50% 0.50% 18 months 0.25% 12 Greater than $3,000,000 None 0.25% 0.50% 18 months 0.25% 12 Class A Virtus Seix GA Tax-Exempt Bond, Virtus Seix High Grade Municipal Bond, Virtus Seix NC Tax-Exempt Bond & Virtus Seix VA Intermediate Municipal Bond Effective Date: Estimated 2nd Quarter 2017 CDSC Annual 12b-1 Month 12b-1 Asset Levels Sales Charge Dealer Payout CDSC Hold Payout Payout Begins Less than $50,000 2.75% 2.25% N/A N/A 0.15% 1 $50,000 but under $100,000 2.25% 2.00% N/A N/A 0.15% 1 $100,000 but under $250,000 1.75% 1.50% N/A N/A 0.15% 1 $250,000 but under $500,000 1.25% 1.00% N/A N/A 0.15% 1 $500,000 but under $1,000,000 1.00% 1.00% N/A N/A 0.15% 1 $1,000,000 -$3,000,000 None 0.50% 0.50% 18 months 0.15% 12 Greater than $3,000,000 None 0.25% 0.50% 18 months 0.15% 12 Class A Virtus Seix Floating Rate High Income & Virtus Seix Investment Grade Tax-Exempt Bond Effective Date: Estimated 2nd Quarter 2017 Asset Levels Sales Charge Dealer Payout CDSC CDSC Annual 12b-1 Month 12b-1 Hold Payout Payout Begins Less than $50,000 2.75% 2.25% N/A N/A 0.25% 1 $50,000 but under $100,000 2.25% 2.00% N/A N/A 0.25% 1 $100,000 but under $250,000 1.75% 1.50% N/A N/A 0.25% 1 $250,000 but under $500,000 1.25% 1.00% N/A N/A 0.25% 1 $500,000 but under $1,000,000 1.00% 1.00% N/A N/A 0.25% 1 $1,000,000 -$3,000,000 None 0.50% 0.50% 18 months 0.25% 12 Greater than $3,000,000 None 0.25% 0.50% 18 months 0.25% 12 Class A Virtus Seix Short-Term Municipal Bond Effective Date: Estimated 2nd Quarter 2017 CDSC Annual 12b-1 Month 12b-1 Asset Levels Sales Charge Dealer Payout CDSC Hold Payout Payout Begins Less than $50,000 2.25% 2.00% N/A N/A 0.15% 1 $50,000 but under $100,000 2.25% 2.00% N/A N/A 0.15% 1 $100,000 but under $250,000 1.75% 1.50% N/A N/A 0.15% 1 $250,000 but under $1,000,000 None None N/A N/A 0.15% 1 $1,000,000 -$3,000,000 None 0.50% 0.50% 18 months 0.15% 12 Greater than $3,000,000 None 0.25% 0.50% 18 months 0.15% 12 Class A Virtus Seix Short-Term Bond & Virtus Seix U.S. Mortgage Effective Date: Estimated 2nd Quarter 2017 Asset Levels Sales Charge Dealer Payout CDSC CDSC Annual 12b-1 Month 12b-1 Hold Payout Payout Begins Less than $50,000 2.25% 2.00% N/A N/A 0.20% 1 $50,000 but under $100,000 2.25% 2.00% N/A N/A 0.20% 1 $100,000 but under $250,000 1.75% 1.50% N/A N/A 0.20% 1 $250,000 but under $1,000,000 None None N/A N/A 0.20% 1 $1,000,000 -$3,000,000 None 0.50% 0.50% 18 months 0.20% 12 Greater than $3,000,000 None 0.25% 0.50% 18 months 0.20% 12

APPENDIX C: Initial and Additional Investment Minimum Updates*

Updated Initial Investment Minimums for NEW Virtus Funds Effective Date: Estimated 2nd Quarter 2017 Share Class Account Type Minimum amount IRA accounts $100 Class A and C Defined contribution plans, asset-based fee programs, profit-sharing plans, or employee benefit plans None All other accounts $2,500 Class I Any account for qualified investors $100,000 Class IS For certain account types the fund minimum may apply $2.5 million Class R N/A None Updated Additional Investment Minimums for NEW Virtus Funds Effective Date: Estimated 2nd Quarter 2017 Any account $100 Class A and C Defined contribution plans, asset-based fee programs, profit-sharing plans, or employee benefit plans None Class I N/A None Class IS N/A None Class R N/A None Updated Systematic Investment Plans for NEW Virtus Funds Effective Date: Estimated 2nd Quarter 2017 Systematic Purchase Plan $100 Class A and C Systematic Exchange Plan $100 Systematic Withdrawal Plan (account balance minimum $5,000) $25

*This information will be provided in more detail once the funds’ new prospectuses are available. In the interim, please see the RidgeWorth Funds’ combined prospectus/proxy statement for additional information on minimums.

Good morning/afternoon. As I mentioned in my voice mail today, attached is the RidgeWorth Funds Proxy Communications Guide.

As you will see, the guide contains additional information on the shareholder proxy that is currently underway, samples of the proxy materials your clients received, and detailed voting instructions to assist you and your clients in voting their shares.

Thank you in advance for your support of RidgeWorth Funds. We truly appreciate you working with your clients to secure this important vote.

Should you have any questions or require additional information, please contact me at xxx-xxx-xxxx or the RidgeWorth Sales Desk at 1-866-595-2470.

Sincerely,

xx

All investments involve risk. There is no guarantee a specific investment strategy will be successful.

Before investing, investors should carefully read the prospectus or summary prospectus and consider the fund’s investment objectives, risks, charges and expenses. Please call 888.784.3863 or visit ridgeworth.com to obtain a prospectus or summary prospectus, which contains this and other information about the funds.

©2017 RidgeWorth Investments. All rights reserved. RidgeWorth Investments is the trade name for RidgeWorth Capital Management LLC, an investment adviser registered with the SEC and the adviser to the RidgeWorth Funds. RidgeWorth Funds are distributed by RidgeWorth Distributors LLC, which is not affiliated with the adviser.