# EDGAR Filing Document

**Accession Number:** 0000778207
**File Stem:** 0001193125-23-005564
**Filing Date:** 2023-1
**Character Count:** 7740
**Document Hash:** c12c5f264196984c2ea8ebf7b3cd4a80
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-005564.hdr.sgml**: 20230110

**ACCESSION NUMBER**: 0001193125-23-005564

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230110

**DATE AS OF CHANGE**: 20230110

**EFFECTIVENESS DATE**: 20230110

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TRANSAMERICA SERIES TRUST
- **CENTRAL INDEX KEY:** 0000778207
- **IRS NUMBER:** 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:** 23521102

**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 Aegon Bond VP (formerly Transamerica PIMCO Total Return VP) (Series ID: S000007911)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021467 | Initial      |  |
| C000021468 | Service      |  |

**TRANSAMERICA SERIES TRUST** 

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

**and Statement of Additional Information, as supplemented** 

**Transamerica Aegon Bond VP (formerly, Transamerica PIMCO Total Return VP)** 

\* \* \*

*Effective immediately, the following replaces the corresponding information in the Prospectus and Summary Prospectus for Transamerica Aegon Bond VP under the section entitled "Management":* 

---

| | | |
|:---|:---|:---|
| **Management:** | **Management:** | **Management:** |
| *Investment Manager:* Transamerica Asset Management, Inc. | *Investment Manager:* Transamerica Asset Management, Inc. | *Investment Manager:* Transamerica Asset Management, Inc. |
| *Sub-Adviser:* Aegon USA Investment Management, LLC | *Sub-Adviser:* Aegon USA Investment Management, LLC | *Sub-Adviser:* Aegon USA Investment Management, LLC |
| *Portfolio Managers:* | *Portfolio Managers:* | *Portfolio Managers:* |
| &nbsp;&nbsp;&nbsp;&nbsp;Bradley D. Doyle, CFA | Portfolio Manager | since November 2022 |
| &nbsp;&nbsp;&nbsp;&nbsp;Tyler A. Knight, CFA | Portfolio Manager | since November 2022 |
| &nbsp;&nbsp;&nbsp;&nbsp;Brian W. Westhoff, CFA | Portfolio Manager | since November 2022 |
| &nbsp;&nbsp;&nbsp;&nbsp;Sivakumar N. Rajan | Portfolio Manager | since December 2022 |

---

*Effective immediately, the following replaces the information in the Prospectus for Transamerica Aegon Bond VP under the section entitled "Shareholder Information – Portfolio Manager(s)":* 

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Name** | **Sub-Adviser** | **Positions Over Past Five Years** |
| &nbsp;&nbsp;&nbsp;Bradley D. Doyle, CFA | Aegon USA Investment Management, LLC | Portfolio Manager of the portfolio since 2022; Portfolio Manager with Aegon USA Investment Management, LLC since 2004; Co-Head of Investment Grade Credit from 2015-2017 and Head of Investment Grade Credit since 2017 |
| &nbsp;&nbsp;&nbsp;Tyler A. Knight, CFA | Aegon USA Investment Management, LLC | Portfolio Manager of the portfolio since 2022; Portfolio Manager with Aegon USA Investment Management, LLC since 2008; Head of Structured Finance since 2018 |
| &nbsp;&nbsp;&nbsp;Brian W. Westhoff, CFA | Aegon USA Investment Management, LLC | Portfolio Manager of the portfolio since 2022; Portfolio Manager with Aegon USA Investment Management, LLC since 2011; Head of Multi-Sector Portfolio Management since 2018 |
| &nbsp;&nbsp;&nbsp;Sivakumar N. Rajan | Aegon USA Investment Management, LLC | Portfolio Manager of the portfolio since 2022; Portfolio Manager with Aegon USA Investment Management, LLC since 2015 |

---

\* \* \*

*Effective immediately, the following information replaces the corresponding information in the Statement of Additional Information in "Appendix B - Portfolio Managers" under "Aegon USA Investment Management, LLC ("AUIM")":* 

**Transamerica Aegon Bond 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;Bradley D. Doyle, CFA<sup>\*</sup> | 7 | $5.32 billion | 8 | $1.63 billion | 8 | $28.67 billion |
| &nbsp;&nbsp;&nbsp;Tyler A. Knight, CFA<sup>\*</sup> | 8 | $9.08 billion | 5 | $809 million | 15 | $7.51 billion |
| &nbsp;&nbsp;&nbsp;Brian W. Westhoff, CFA<sup>\*</sup> | 7 | $8.70 billion | 5 | $989 million | 18 | $31.57 billion |
| &nbsp;&nbsp;&nbsp;Sivakumar N. Rajan<sup>\*</sup> | 7 | $7.72 billion | 5 | $954 million | 9 | $28.60 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;Bradley D. Doyle, CFA<sup>\*</sup> | 0 | $0 | 0 | $0 | 0 | $0 |
| &nbsp;&nbsp;&nbsp;Tyler A. Knight, CFA<sup>\*</sup> | 0 | $0 | 0 | $0 | 0 | $0 |
| &nbsp;&nbsp;&nbsp;Brian W. Westhoff, CFA<sup>\*</sup> | 0 | $0 | 0 | $0 | 0 | $0 |
| &nbsp;&nbsp;&nbsp;Sivakumar N. Rajan<sup>\*</sup> | 0 | $0 | 0 | $0 | 0 | $0 |

---

\* as of November 30, 2022

------

**Ownership of Securities** 

As of November 30, 2022, the portfolio manager(s) did not beneficially own any shares of the portfolios(s).

**\* \* \*** 

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

**January 10, 2023**