Transamerica Series Trust

02/04/2026 | Press release | Distributed by Public on 02/04/2026 08:20

Summary Prospectus by Investment Company (Form 497K)

TRANSAMERICA SERIES TRUST

Supplement to the Currently Effective Prospectus, Summary Prospectus and Statement of Additional Information

* * *

Effective February 5, 2026, Christopher A. Staples, CFA will be removed from the "Officers" table contained in the "Board Members and Officers" sub-section of the Statement of Additional Information under the heading "Management of the Trust."

* * *

Transamerica 60/40 Allocation VP

Effective February 5, 2026, the following will replace the corresponding information in the Prospectus and Summary Prospectus for Transamerica 60/40 Allocation VP under the section entitled "Management":

Management:

Investment Manager: Transamerica Asset Management, Inc.

Portfolio Managers:

Kane Cotton, CFA

Portfolio Manager

since January 2018

E. Kele Evans, CFA

Portfolio Manager

since February 2026

Rufat Garalov, CFA

Portfolio Manager

since May 2021

Effective February 5, 2026, the following will replace the corresponding information in the Prospectus under the section entitled "Shareholder Information - Portfolio Manager(s)":

Transamerica 60/40 Allocation VP

Name

Adviser

Positions Over Past Five Years

Kane Cotton, CFA

Transamerica Asset Management, Inc.

Portfolio Manager of the portfolio since 2018;

Employed by Transamerica Asset Management, Inc.

since 2014

E. Kele Evans, CFA

Transamerica Asset Management, Inc.

Portfolio Manager of the portfolio since 2026;

Employed by Transamerica Asset Management, Inc.

since 2019

Rufat Garalov, CFA

Transamerica Asset Management, Inc.

Portfolio Manager of the portfolio since 2021;

Employed by Transamerica Asset Management, Inc.

since 2014

* * *

Effective February 5, 2026, the following will replace the corresponding information in the Statement of Additional Information under the section in Appendix B entitled "Portfolio Managers - Transamerica Asset Management, Inc. ("TAM")":

Transamerica 60/40 Allocation VP

Portfolio Manager

Registered Investment

Companies

Other Pooled Investment

Vehicles

Other Accounts

Number

Assets

Managed

Number

Assets

Managed

Number

Assets

Managed

Kane Cotton, CFA

4

$193 million

5

$192 million

0

$0

E. Kele Evans, CFA*

4

$193 million

5

$192 million

0

$0

Rufat Garalov, CFA

4

$193 million

5

$192 million

0

$0

Fee Based Accounts
(The number of accounts and the total assets in the accounts managed by each portfolio manager with
respect to which the advisory fee is based on the performance of the account.)

Kane Cotton, CFA

0

$0

0

$0

0

$0

E. Kele Evans, CFA*

0

$0

0

$0

0

$0

Rufat Garalov, CFA

0

$0

0

$0

0

$0

* As of February 5, 2026

* * *

Investors Should Retain this Supplement for Future Reference

February 4, 2026

Transamerica Series Trust published this content on February 04, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on February 04, 2026 at 14:20 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]