Variable Annuity Acct C of Voya Retirement Insurance & Annuity Co.

04/01/2026 | Press release | Distributed by Public on 04/01/2026 15:02

Summary Prospectus for New Investors by Investment Company (Form 497VPI)

Multiple Sponsored Retirement Options II

issued by

Voya Retirement Insurance and Annuity Company

and its

Variable Annuity Account C

Supplement Dated April 1, 2026, to the Contract Prospectus,

Initial Summary Prospectus, and Updating Summary Prospectus

each dated May 1, 2025, as amended

This supplement to the variable annuity contract prospectus ("contract prospectus"), initial summary prospectus and updating summary prospectus ("summary prospectuses"), updates and amends certain information contained in them. Please read this supplement carefully and keep it with the contract prospectus and summary prospectuses that you may have received, for future reference. Capitalized terms not defined in this supplement shall have the meaning given to them in the contract prospectus and summary prospectuses.

NOTICE OF IMPORTANT INFORMATION ABOUT

THE ADDITION OF NEW FUNDS

Effective May 1, 2026, the following funds will be added to the Contracts of APPENDIX A: FUNDS AVAILABLE UNDER THE CONTRACT, in the contract prospectus and initial summary prospectus, and in the APPENDIX: FUNDS AVAILABLE UNDER THE CONTRACT, of the updating summary prospectus.

INVESTMENT OBJECTIVE

FUND NAME

INVESTMENT ADVISER/SUBADVISER

CURRENT EXPENSES

AVERAGE ANNUAL TOTAL RETURNS

(as of 12/31/2025)

1

Year

5

Years

10

Years

Seeks capital growth.

Fidelity Advisor® Diversified Stock Fund
(Class A)

Investment Adviser: Fidelity Management & Research Company LLC

0.76% 13.57% 13.62% 14.93%
Seeks long-term capital growth.

Victory Pioneer Global Equity Fund

(Class A)1

Investment Adviser: Victory Capital Management Inc.

1.10%* 41.08% 15.40% 12.75%
* Current expenses reflect applicable waivers or expense limitations as reported in the Fund's prospectus.
1 This Fund is available to the general public in addition to being available through variable annuity contracts. See "FEDERAL TAX CONSIDERATIONS - Special Considerations for Section 403(b) Plans" for a discussion of investment in one of the public Funds under 403(b) or Roth 403(b) annuity contracts.
X.167680-25D April 2026
INVESTMENT OBJECTIVE

FUND NAME

INVESTMENT ADVISER/SUBADVISER

CURRENT EXPENSES

AVERAGE ANNUAL TOTAL RETURNS

(as of 12/31/2025)

1

Year

5

Years

10

Years

Maximize total return through income and capital appreciation.

Voya Intermediate Bond Fund (Class I)

Investment Adviser: Voya Investments, LLC

Subadviser: Voya Investment Management Co. LLC

0.36% 7.56% 0.11% 2.66%
Seeks long-term capital appreciation.

VY® T. Rowe Price Diversified Mid Cap Growth Portfolio (Class I)


Investment Adviser:
Voya Investments, LLC

Subadviser: T. Rowe Price Associates, Inc.

0.80%* 9.92% 7.24% 12.78%
* Current expenses reflect applicable waivers or expense limitations as reported in the Fund's prospectus.
1 This Fund is available to the general public in addition to being available through variable annuity contracts. See "FEDERAL TAX CONSIDERATIONS - Special Considerations for Section 403(b) Plans" for a discussion of investment in one of the public Funds under 403(b) or Roth 403(b) annuity contracts.

* * * *

MORE INFORMATION IS AVAILABLE

More information about the funds available through your Contract, including information about the risks associated with investing in them, can be found in the current prospectus, summary prospectuses, and Statement of Additional Information for each fund. You may obtain these documents by contacting Customer Service.

If you received a summary prospectus for any of the funds available through your Contract, you may obtain a full contract prospectus and other fund information free of charge by either accessing the internet address, calling the telephone number or sending an email request to the email address shown on the front of the fund's summary prospectus.

Please retain this supplement for future reference.

Insurance products, annuities and retirement plan funding issued by (third party administrative services may also be provided by) Voya Retirement Insurance and Annuity Company, One Orange Way, Windsor, CT 06095. Securities are distributed by Voya Financial Partners, LLC (member SIPC). Securities may also be distributed through other broker-dealers with which Voya Financial Partners; LLC has selling agreements.

X.167680-25D April 2026
Variable Annuity Acct C of Voya Retirement Insurance & Annuity Co. published this content on April 01, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on April 01, 2026 at 21:03 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]