# EDGAR Filing Document

**Accession Number:** 0000778207
**File Stem:** 0001193125-26-027142
**Filing Date:** 2026-1
**Character Count:** 13418
**Document Hash:** 806563ade71d98485c14bc8e9ecfd9e1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-027142.hdr.sgml**: 20260128

**ACCESSION NUMBER**: 0001193125-26-027142

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260128

**DATE AS OF CHANGE**: 20260128

**EFFECTIVENESS DATE**: 20260128

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TRANSAMERICA SERIES TRUST
- **CENTRAL INDEX KEY:** 0000778207

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-00507
- **FILM NUMBER:** 26572237

**BUSINESS ADDRESS:**
- **STREET 1:** 1801 CALIFORNIA STREET
- **STREET 2:** SUITE 5200
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202
- **BUSINESS PHONE:** 720-482-8836

**MAIL ADDRESS:**
- **STREET 1:** 1801 CALIFORNIA STREET
- **STREET 2:** SUITE 5200
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AEGON/TRANSAMERICA SERIES TRUST
- **DATE OF NAME CHANGE:** 20050511

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AEGON/TRANSAMERICA SERIES FUND INC
- **DATE OF NAME CHANGE:** 20010501

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WRL SERIES FUND INC
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Transamerica Morgan Stanley Capital Growth VP (Series ID: S000007912)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021469 | Initial      |  |

**TRANSAMERICA SERIES TRUST** 

**Supplement to the Currently Effective Prospectus, Summary Prospectuses** 

**and Statement of Additional Information** 

**Transamerica International Focus VP** 

**Transamerica Morgan Stanley Capital Growth VP** 

\* \* \*

**Transamerica International Focus VP** 

*Effective January 31, 2026, the following will replace the corresponding information in the Prospectus and Summary Prospectus for Transamerica International Focus VP under the section entitled "Management":* 

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp; **Management:** | &nbsp;&nbsp; **Management:** | &nbsp;&nbsp; **Management:** |
| &nbsp;&nbsp; *Investment Manager:* Transamerica Asset Management, Inc.  | &nbsp;&nbsp; *Investment Manager:* Transamerica Asset Management, Inc.  | &nbsp;&nbsp; *Investment Manager:* Transamerica Asset Management, Inc.  |
| &nbsp;&nbsp; *Sub-Adviser:* Sands Capital Management, LLC | &nbsp;&nbsp; *Sub-Adviser:* Sands Capital Management, LLC | &nbsp;&nbsp; *Sub-Adviser:* Sands Capital Management, LLC |
| &nbsp;&nbsp; *Portfolio Managers:* | &nbsp;&nbsp; *Portfolio Managers:* | &nbsp;&nbsp; *Portfolio Managers:* |
| &nbsp;&nbsp; Danielle J. Menichella, CFA | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Portfolio Manager | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; since October 2024 |
| &nbsp;&nbsp; Michael F. Raab, CFA | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Portfolio Manager | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; since October 2024 |

---

*Effective January 31, 2026, the following will replace the corresponding information in the Prospectus for Transamerica International Focus VP under the section entitled "Shareholder Information – Portfolio Manager(s)":* 

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Name** | **Sub-Adviser** | **Positions Over Past Five Years** |
| &nbsp;&nbsp;&nbsp;Danielle J. Menichella, CFA | Sands Capital Management, LLC | Portfolio Manager of the fund since 2024; Senior Research Analyst and Portfolio Manager on the Global Leaders, Global Shariah and International Growth strategies; Joined Sands Capital Management, LLC in 2013 |
| &nbsp;&nbsp;&nbsp;Michael F. Raab, CFA | Sands Capital Management, LLC | Portfolio Manager of the fund since 2024; Executive Managing Director, Director of Research, Senior Research Analyst and Portfolio Manager on the Global Leaders strategy; Joined Sands Capital Management, LLC in 2007 |

---

\* \* \*

**Transamerica Morgan Stanley Capital Growth VP** 

*Effective immediately, the following replaces the corresponding information in the Prospectus and Summary Prospectus for Transamerica Morgan Stanley Capital Growth VP under the section entitled "Management":* 

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp; **Management:** | &nbsp;&nbsp; **Management:** | &nbsp;&nbsp; **Management:** |
| &nbsp;&nbsp; *Investment Manager:* Transamerica Asset Management, Inc.  | &nbsp;&nbsp; *Investment Manager:* Transamerica Asset Management, Inc.  | &nbsp;&nbsp; *Investment Manager:* Transamerica Asset Management, Inc.  |
| &nbsp;&nbsp; *Sub-Adviser: Morgan Stanley* Investment Management Inc. | &nbsp;&nbsp; *Sub-Adviser: Morgan Stanley* Investment Management Inc. | &nbsp;&nbsp; *Sub-Adviser: Morgan Stanley* Investment Management Inc. |
| &nbsp;&nbsp; *Portfolio Managers:* | &nbsp;&nbsp; *Portfolio Managers:* | &nbsp;&nbsp; *Portfolio Managers:* |
| &nbsp;&nbsp; Dennis P. Lynch | Lead Portfolio Manager | since April 2011 |
| &nbsp;&nbsp; Sam G. Chainani, CFA | Portfolio Manager | since April 2011 |
| &nbsp;&nbsp; Jason C. Yeung, CFA | Portfolio Manager | since April 2011 |
| &nbsp;&nbsp; Armistead B. Nash | Portfolio Manager | since April 2011 |
| &nbsp;&nbsp; Alexander T. Norton | Portfolio Manager | since April 2011 |

---

*Effective immediately, the following replaces the corresponding information in the Prospectus for Transamerica Morgan Stanley Capital Growth VP under the section entitled "Shareholder Information – Portfolio Manager(s)":* 

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Name** | **Sub-Adviser** | **Positions Over Past Five Years** |
| &nbsp;&nbsp;&nbsp;Dennis P. Lynch | Morgan Stanley Investment Management Inc. | Lead Portfolio Manager of the fund since 2011; associated with Morgan Stanley Investment Management Inc. in an investment management capacity since 1998; Managing Director; Head of Counterpoint Global |
| &nbsp;&nbsp;&nbsp;Sam G. Chainani, CFA | Morgan Stanley Investment Management Inc. | Portfolio Manager of the fund since 2011; associated with Morgan Stanley Investment Management Inc. in an investment management capacity since 1996; Managing Director; Investor on Counterpoint Global |
| &nbsp;&nbsp;&nbsp;Jason C. Yeung, CFA | Morgan Stanley Investment Management Inc. | Portfolio Manager of the fund since 2011; associated with Morgan Stanley Investment Management Inc. in an investment management capacity since 2002; Managing Director; Investor on Counterpoint Global |
| &nbsp;&nbsp;&nbsp;Armistead B. Nash | Morgan Stanley Investment Management Inc. | Portfolio Manager of the fund since 2011; associated with Morgan Stanley Investment Management Inc. in an investment management capacity since 2002; Managing Director; Investor on Counterpoint Global |
| &nbsp;&nbsp;&nbsp;Alexander T. Norton | Morgan Stanley Investment Management Inc. | Portfolio Manager of the fund since 2011; associated with Morgan Stanley Investment Management Inc. in an investment management capacity since 2000; Executive Director; Investor on Counterpoint Global |

---

------

\* \* \*

*Effective January 31, 2026, the following will replace the corresponding information in the Statement of Additional Information under the section in Appendix B entitled "Portfolio Managers – Sands Capital Management, LLC ("Sands Capital")":* 

**Transamerica International Focus VP** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Portfolio Manager** | **Registered Investment<br>Companies** | **Registered Investment<br>Companies** | **Other Pooled Investment**<br> **Vehicles** | **Other Pooled Investment**<br> **Vehicles** | **Other Accounts** | **Other Accounts** |
| &nbsp;&nbsp;&nbsp;**Portfolio Manager** | **Number** | **Assets**<br> **Managed**  | **Number** | **Assets**<br> **Managed**  | **Number** | **Assets**<br> **Managed**  |
| &nbsp;&nbsp;&nbsp;Danielle J. Menichella, CFA | 1 | $96.5 million | 6 | $3.0 billion | 8 | $388.1 million |
| &nbsp;&nbsp;&nbsp;Michael F. Raab, CFA | 0 | $0 | 5 | $3.3 billion | 2 | $2.0 million |
| &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** |
| &nbsp;&nbsp;&nbsp;Danielle J. Menichella, CFA | 0 | $0 | 0 | $0 | 0 | $0 |
| &nbsp;&nbsp;&nbsp;Michael F. Raab, CFA | 0 | $0 | 0 | $0 | 0 | $0 |

---

\* \* \*

*Effective immediately, the following replaces the corresponding information in the Statement of Additional Information under the section in Appendix B entitled "Portfolio Managers – Morgan Stanley Investment Management Inc. ("Morgan Stanley")":* 

**Transamerica Morgan Stanley Capital Growth VP** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Portfolio Manager** | **Registered Investment<br>Companies** | **Registered Investment<br>Companies** | **Other Pooled Investment**<br> **Vehicles** | **Other Pooled Investment**<br> **Vehicles** | **Other Accounts** | **Other Accounts** |
| &nbsp;&nbsp;&nbsp;**Portfolio Manager** | **Number** | **Assets**<br> **Managed**  | **Number** | **Assets**<br> **Managed**  | **Number** | **Assets**<br> **Managed**  |
| &nbsp;&nbsp;&nbsp;Dennis P. Lynch | 28 | $19.98 billion | 21 | $3.29 billion | 16 | $3.67 billion |
| &nbsp;&nbsp;&nbsp;Sam G. Chainani, CFA | 28 | $19.98 billion | 20 | $3.16 billion | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp;Jason C. Yeung, CFA | 28 | $19.98 billion | 20 | $3.16 billion | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp;Armistead B. Nash | 28 | $19.98 billion | 20 | $3.16 billion | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp;Alexander T. Norton | 28 | $19.98 billion | 20 | $3.16 billion | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** | &nbsp;&nbsp;&nbsp; **Fee Based Accounts**<br> **(The number of accounts and the total assets in the accounts managed by each portfolio manager with**<br> **respect to which the advisory fee is based on the performance of the account.)** |
| &nbsp;&nbsp;&nbsp;Dennis P. Lynch | 0 | $0 | 0 | $0 | 16 | $3.67 billion |
| &nbsp;&nbsp;&nbsp;Sam G. Chainani, CFA | 0 | $0 | 0 | $0 | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp;Jason C. Yeung, CFA | 0 | $0 | 0 | $0 | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp;Armistead B. Nash | 0 | $0 | 0 | $0 | 14 | $3.58 billion |
| &nbsp;&nbsp;&nbsp;Alexander T. Norton | 0 | $0 | 0 | $0 | 14 | $3.58 billion |

---

**\* \* \*** 

**Investors Should Retain this Supplement for Future Reference** 

**January 28, 2026**