# EDGAR Filing Document

**Accession Number:** 0000778207
**File Stem:** 0001193125-25-191058
**Filing Date:** 2025-8
**Character Count:** 30257
**Document Hash:** 013f23d4ddf6a554ce82bd896c8daff6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-191058.hdr.sgml**: 20250828

**ACCESSION NUMBER**: 0001193125-25-191058

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250828

**DATE AS OF CHANGE**: 20250828

**EFFECTIVENESS DATE**: 20250828

**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:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-00507
- **FILM NUMBER:** 251272017

**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 Core Bond VP (Series ID: S000007896)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021437 |
| Service    | C000021438 |

---

### Transamerica BlackRock Real Estate Securities VP (Series ID: S000007898)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021441 |
| Service    | C000021442 |

---

### Transamerica JPMorgan Tactical Allocation VP (Series ID: S000007899)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021443 |
| Service    | C000021444 |

---

### Transamerica JPMorgan Enhanced Index VP (Series ID: S000007902)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021449 |
| Service    | C000021450 |

---

### Transamerica TSW Mid Cap Value Opportunities VP (Series ID: S000007903)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021451 |
| Service    | C000021452 |

---

### Transamerica Aegon Sustainable Equity Income VP (Series ID: S000007908)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021461 |
| Service    | C000021462 |

---

### Transamerica AEGON High Yield Bond VP (Series ID: S000007909)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021463 |
| Service    | C000021464 |

---

### Transamerica Aegon Bond VP (Series ID: S000007911)

---

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

---

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

---

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

---

### Transamerica T. Rowe Price Small Cap VP (Series ID: S000007915)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021475 |
| Service    | C000021476 |

---

### Transamerica International Focus VP (Series ID: S000007918)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021481 |
| Service    | C000021482 |

---

### Transamerica Multi-Managed Balanced VP (Series ID: S000007919)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021483 |
| Service    | C000021484 |

---

### Transamerica BlackRock iShares Edge 40 VP (Series ID: S000007920)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021485 |
| Service    | C000021486 |

---

### Transamerica WMC US Growth VP (Series ID: S000007921)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021487 |
| Service    | C000021488 |

---

### Transamerica BlackRock Government Money Market VP (Series ID: S000007924)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021493 |
| Service    | C000021494 |

---

### Transamerica Small/Mid Cap Value VP (Series ID: S000007925)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021495 |
| Service    | C000021496 |

---

### Transamerica AEGON U.S. Government Securities VP (Series ID: S000007926)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021497 |
| Service    | C000021498 |

---

### Transamerica TSW International Equity VP (Series ID: S000007928)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021501 |
| Service    | C000021502 |

---

### Transamerica JPMorgan Asset Allocation - Conservative VP (Series ID: S000007929)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021503 |
| Service    | C000021504 |

---

### Transamerica Janus Mid-Cap Growth VP (Series ID: S000007930)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021505 |
| Service    | C000021506 |

---

### Transamerica JPMorgan Asset Allocation - Growth VP (Series ID: S000007932)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021509 |
| Service    | C000021510 |

---

### Transamerica JPMorgan Asset Allocation - Moderate VP (Series ID: S000007933)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021511 |
| Service    | C000021512 |

---

### Transamerica JPMorgan Asset Allocation - Moderate Growth VP (Series ID: S000007934)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000021513 |
| Service    | C000021514 |

---

### Transamerica JPMorgan International Moderate Growth VP (Series ID: S000012821)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000034664 |
| Service    | C000034665 |

---

### Transamerica Goldman Sachs Managed Risk-Balanced ETF VP (Series ID: S000021746)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000062365 |
| Service    | C000062366 |

---

### Transamerica Goldman Sachs Managed Risk-Growth ETF VP (Series ID: S000021747)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000062367 |
| Service    | C000062368 |

---

### Transamerica Janus Balanced VP (Series ID: S000025012)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000074409 |
| Initial    | C000074410 |

---

### Transamerica BlackRock iShares Tactical - Balanced VP (Series ID: S000025013)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000074411 |
| Initial    | C000074412 |

---

### Transamerica BlackRock iShares Tactical - Growth VP (Series ID: S000025014)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000074413 |
| Initial    | C000074414 |

---

### Transamerica BlackRock iShares Tactical - Conservative VP (Series ID: S000025015)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000074415 |
| Initial    | C000074416 |

---

### Transamerica ProFund UltraBear VP (Series ID: S000025331)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000075537 |
| Service    | C000075538 |

---

### Transamerica BlackRock Tactical Allocation VP (Series ID: S000025458)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000076203 |
| Service    | C000076204 |

---

### Transamerica Morgan Stanley Global Allocation VP (Series ID: S000025459)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000076205 |
| Service    | C000076206 |

---

### Transamerica Goldman Sachs Managed Risk-Conservative ETF VP (Series ID: S000026902)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000080975 |
| Service    | C000080976 |

---

### Transamerica BlackRock iShares Active Asset Allocation - Conservative VP (Series ID: S000031950)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000099459 |
| Service    | C000099460 |

---

### Transamerica BlackRock iShares Active Asset Allocation - Moderate Growth VP (Series ID: S000031951)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000099461 |
| Service    | C000099462 |

---

### Transamerica BlackRock iShares Active Asset Allocation - Moderate VP (Series ID: S000031952)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000099463 |
| Service    | C000099464 |

---

### Transamerica Madison Diversified Income VP (Series ID: S000031955)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000099469 |
| Service    | C000099470 |

---

### Transamerica PineBridge Inflation Opportunities VP (Series ID: S000031958)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000099475 |
| Service    | C000099476 |

---

### Transamerica BlackRock iShares Dynamic Allocation - Balanced VP (Series ID: S000036843)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000112675 |
| Service    | C000112676 |

---

### Transamerica BlackRock iShares Dynamic Allocation - Moderate Growth VP (Series ID: S000036844)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000112677 |
| Service    | C000112678 |

---

### Transamerica Market Participation Strategy VP (Series ID: S000036845)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000112679 |
| Service    | C000112680 |

---

### Transamerica Morgan Stanley Global Allocation Managed Risk - Balanced VP (Series ID: S000047203)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000147920 |
| Service    | C000147921 |

---

### Transamerica American Funds Managed Risk VP (Series ID: S000049122)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000154895 |

---

### Transamerica BlackRock iShares Edge 50 VP (Series ID: S000053165)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000167272 |

---

### Transamerica BlackRock iShares Edge 75 VP (Series ID: S000053166)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000167273 |

---

### Transamerica BlackRock iShares Edge 100 VP (Series ID: S000053167)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000167274 |

---

### Transamerica MSCI EAFE Index VP (Series ID: S000057298)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000182874 |
| Initial    | C000197833 |

---

### Transamerica S&P 500 Index VP (Series ID: S000057299)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000182875 |
| Initial    | C000197834 |

---

### Transamerica Great Lakes Advisors Large Cap Value VP (Series ID: S000059116)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Initial    | C000193818 |
| Service    | C000193819 |

---

### Transamerica 60/40 Allocation VP (Series ID: S000060985)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000197832 |

---

### Transamerica Goldman Sachs 70/30 Allocation VP (Series ID: S000067836)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Service    | C000217588 |

---

## Series and Classes Contracts Data

### Transamerica Aegon Core Bond VP (Series ID: S000007896)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021437 | Initial      |  |
| C000021438 | Service      |  |

### Transamerica BlackRock Real Estate Securities VP (Series ID: S000007898)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021441 | Initial      |  |
| C000021442 | Service      |  |

### Transamerica JPMorgan Tactical Allocation VP (Series ID: S000007899)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021443 | Initial      |  |
| C000021444 | Service      |  |

### Transamerica JPMorgan Enhanced Index VP (Series ID: S000007902)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021449 | Initial      |  |
| C000021450 | Service      |  |

### Transamerica TSW Mid Cap Value Opportunities VP (Series ID: S000007903)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021451 | Initial      |  |
| C000021452 | Service      |  |

### Transamerica Aegon Sustainable Equity Income VP (Series ID: S000007908)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021461 | Initial      |  |
| C000021462 | Service      |  |

### Transamerica AEGON High Yield Bond VP (Series ID: S000007909)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021463 | Initial      |  |
| C000021464 | Service      |  |

### Transamerica Aegon Bond VP (Series ID: S000007911)

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

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

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

### Transamerica T. Rowe Price Small Cap VP (Series ID: S000007915)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021475 | Initial      |  |
| C000021476 | Service      |  |

### Transamerica International Focus VP (Series ID: S000007918)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021481 | Initial      |  |
| C000021482 | Service      |  |

### Transamerica Multi-Managed Balanced VP (Series ID: S000007919)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021483 | Initial      |  |
| C000021484 | Service      |  |

### Transamerica BlackRock iShares Edge 40 VP (Series ID: S000007920)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021485 | Initial      |  |
| C000021486 | Service      |  |

### Transamerica WMC US Growth VP (Series ID: S000007921)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021487 | Initial      |  |
| C000021488 | Service      |  |

### Transamerica BlackRock Government Money Market VP (Series ID: S000007924)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021493 | Initial      |  |
| C000021494 | Service      |  |

### Transamerica Small/Mid Cap Value VP (Series ID: S000007925)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021495 | Initial      |  |
| C000021496 | Service      |  |

### Transamerica AEGON U.S. Government Securities VP (Series ID: S000007926)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021497 | Initial      |  |
| C000021498 | Service      |  |

### Transamerica TSW International Equity VP (Series ID: S000007928)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021501 | Initial      |  |
| C000021502 | Service      |  |

### Transamerica JPMorgan Asset Allocation - Conservative VP (Series ID: S000007929)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021503 | Initial      |  |
| C000021504 | Service      |  |

### Transamerica Janus Mid-Cap Growth VP (Series ID: S000007930)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021505 | Initial      |  |
| C000021506 | Service      |  |

### Transamerica JPMorgan Asset Allocation - Growth VP (Series ID: S000007932)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021509 | Initial      |  |
| C000021510 | Service      |  |

### Transamerica JPMorgan Asset Allocation - Moderate VP (Series ID: S000007933)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021511 | Initial      |  |
| C000021512 | Service      |  |

### Transamerica JPMorgan Asset Allocation - Moderate Growth VP (Series ID: S000007934)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021513 | Initial      |  |
| C000021514 | Service      |  |

### Transamerica JPMorgan International Moderate Growth VP (Series ID: S000012821)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000034664 | Initial      |  |
| C000034665 | Service      |  |

### Transamerica Goldman Sachs Managed Risk-Balanced ETF VP (Series ID: S000021746)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000062365 | Initial      |  |
| C000062366 | Service      |  |

### Transamerica Goldman Sachs Managed Risk-Growth ETF VP (Series ID: S000021747)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000062367 | Initial      |  |
| C000062368 | Service      |  |

### Transamerica Janus Balanced VP (Series ID: S000025012)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000074409 | Service      |  |
| C000074410 | Initial      |  |

### Transamerica BlackRock iShares Tactical - Balanced VP (Series ID: S000025013)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000074411 | Service      |  |
| C000074412 | Initial      |  |

### Transamerica BlackRock iShares Tactical - Growth VP (Series ID: S000025014)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000074413 | Service      |  |
| C000074414 | Initial      |  |

### Transamerica BlackRock iShares Tactical - Conservative VP (Series ID: S000025015)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000074415 | Service      |  |
| C000074416 | Initial      |  |

### Transamerica ProFund UltraBear VP (Series ID: S000025331)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000075537 | Initial      |  |
| C000075538 | Service      |  |

### Transamerica BlackRock Tactical Allocation VP (Series ID: S000025458)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000076203 | Initial      |  |
| C000076204 | Service      |  |

### Transamerica Morgan Stanley Global Allocation VP (Series ID: S000025459)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000076205 | Initial      |  |
| C000076206 | Service      |  |

### Transamerica Goldman Sachs Managed Risk-Conservative ETF VP (Series ID: S000026902)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000080975 | Initial      |  |
| C000080976 | Service      |  |

### Transamerica BlackRock iShares Active Asset Allocation - Conservative VP (Series ID: S000031950)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000099459 | Initial      |  |
| C000099460 | Service      |  |

### Transamerica BlackRock iShares Active Asset Allocation - Moderate Growth VP (Series ID: S000031951)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000099461 | Initial      |  |
| C000099462 | Service      |  |

### Transamerica BlackRock iShares Active Asset Allocation - Moderate VP (Series ID: S000031952)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000099463 | Initial      |  |
| C000099464 | Service      |  |

### Transamerica Madison Diversified Income VP (Series ID: S000031955)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000099469 | Initial      |  |
| C000099470 | Service      |  |

### Transamerica PineBridge Inflation Opportunities VP (Series ID: S000031958)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000099475 | Initial      |  |
| C000099476 | Service      |  |

### Transamerica BlackRock iShares Dynamic Allocation - Balanced VP (Series ID: S000036843)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000112675 | Initial      |  |
| C000112676 | Service      |  |

### Transamerica BlackRock iShares Dynamic Allocation - Moderate Growth VP (Series ID: S000036844)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000112677 | Initial      |  |
| C000112678 | Service      |  |

### Transamerica Market Participation Strategy VP (Series ID: S000036845)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000112679 | Initial      |  |
| C000112680 | Service      |  |

### Transamerica Morgan Stanley Global Allocation Managed Risk - Balanced VP (Series ID: S000047203)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000147920 | Initial      |  |
| C000147921 | Service      |  |

### Transamerica American Funds Managed Risk VP (Series ID: S000049122)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000154895 | Service      |  |

### Transamerica BlackRock iShares Edge 50 VP (Series ID: S000053165)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000167272 | Service      |  |

### Transamerica BlackRock iShares Edge 75 VP (Series ID: S000053166)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000167273 | Service      |  |

### Transamerica BlackRock iShares Edge 100 VP (Series ID: S000053167)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000167274 | Service      |  |

### Transamerica MSCI EAFE Index VP (Series ID: S000057298)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000182874 | Service      |  |
| C000197833 | Initial      |  |

### Transamerica S&P 500 Index VP (Series ID: S000057299)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000182875 | Service      |  |
| C000197834 | Initial      |  |

### Transamerica Great Lakes Advisors Large Cap Value VP (Series ID: S000059116)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000193818 | Initial      |  |
| C000193819 | Service      |  |

### Transamerica 60/40 Allocation VP (Series ID: S000060985)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000197832 | Service      |  |

### Transamerica Goldman Sachs 70/30 Allocation VP (Series ID: S000067836)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000217588 | Service      |  |

**TRANSAMERICA SERIES TRUST** 

**Supplement to the Currently Effective Statement of Additional Information** 

**\* \* \*** 

*Effective immediately, the following information appearing in 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" is replaced in its entirety with the following:* 

**Officers** 

The mailing address of each officer is c/o Secretary, 1801 California Street, Suite 5200, Denver, CO 80202. The following table shows information about the officers, including their year of birth, their positions held with the Trust and their principal occupations during the past five years (their titles may have varied during that period). Each officer will hold office until his or her successor has been duly elected or appointed or until his or her earlier death, resignation or removal.

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Name and Year of Birth** | **Position** | **Term of**<br> **Office and**<br> **Length of**<br> **Time Served\***  | **Principal Occupation(s) or Employment**<br> **During Past Five Years** |
| &nbsp;&nbsp;&nbsp; Marijn P. Smit<br> (1973) | Chairman of the<br>Board, President<br>and Chief<br>Executive Officer | Since 2014 | See Interested Board Members Table Above. |
| &nbsp;&nbsp;&nbsp; Joshua Durham<br> (1973) | Vice President<br>and Chief<br>Operating Officer | Since 2022 | Vice President and Chief Operating Officer, TF and TST (2022 – present);<br> Interim Treasurer, TF and TST (2024 – 2025);<br> Vice President and Chief Operating Officer, TAAVF (2022 – 2023);<br> Director, Senior Vice President, and Chief Operating Officer, TAM (2022 – present) and TFS (2022 – 2023);<br> Director, President and Chief Executive Officer, TFS (2023 – present);<br> Vice President, Transamerica Casualty Insurance Company (2016 – 2022);<br> Vice President (2004 – 2007 and 2012 – 2022) and Responsible Officer (2017 – 2022), Transamerica Financial Life Insurance Company;<br> Vice President (2004 – 2007 and 2010 – 2022) and Responsible Officer (2016 – 2022) Transamerica Life Insurance Company;<br> Chief Administrative Officer (2014 – 2016) and Senior Vice President (2009 – 2020), Transamerica Stable Value Solutions Inc.;<br> Vice President, Transamerica Premier Life Insurance Company (2010 – 2020);<br> Vice President, Transamerica Advisors Life Insurance Company (2016 – 2019);<br> Vice President, TAG Resources, LLC (2022);<br> Vice President, Transamerica Retirement Solutions, LLC (2017 – 2022). |
| &nbsp;&nbsp;&nbsp; Dennis P. Gallagher<br> (1970) | Chief Legal<br>Officer and<br>Secretary | Since 2021;<br> 2006 - 2014 | Chief Legal Officer and Secretary, TF and TST (2021 – present and 2006 – 2014);<br> Chief Legal Officer and Secretary, TAAVF (2021 – 2023 and 2006 –2014);<br> Chief Legal Officer and Assistant Secretary, TAM (2022 – present);<br> Lead Attorney, TAM (2017 – 2021);<br> Associate General Counsel/Chief Legal Officer, Latin American Operations and International Funds (2014 – 2022);<br> Director, Senior Vice President, General Counsel, Operations and Secretary, TAM (2006 – 2014);<br> Director, Senior Vice President, General Counsel, Chief Administrative Officer and Secretary, TFS (2006 – 2014);<br> Chairman of the Board, Aegon Global Funds (2013 – 2022);<br> Board Member, Mongeral Aegon Seguros e Previdencia SA (2017 – 2022);<br> Assistant Secretary, TF, TST, TET and TAAVF (2019);<br> Vice President, General Counsel and Secretary, TPP, TPFG and TPFG II (2007 – 2014);<br> Assistant Vice President, Transamerica Capital, LLC ("TCL") (2007 – 2014);<br> Lead Attorney, Transamerica Stable Value Solutions. Inc. (2024 – present). |
| &nbsp;&nbsp;&nbsp; James E. Goundrey<br> (1977) | Assistant<br>Secretary | Since 2024 | Assistant Secretary, TF and TST (2024 – present);<br> Assistant General Counsel, TAM (2022 – present);<br> Associate General Counsel, Edward D. Jones & Co. (2019 – 2022);<br> Vice President and Senior Counsel, State Street Global Advisors (2015 – 2019). |

---

------

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Name and Year of Birth** | **Position** | **Term of**<br> **Office and**<br> **Length of**<br> **Time Served\***  | **Principal Occupation(s) or Employment**<br> **During Past Five Years** |
| &nbsp;&nbsp;&nbsp; Byron D. Hittle<br> (1974) | Chief Compliance<br>Officer | Since 2025 | Chief Compliance Officer, TF and TST (2025 – present);<br> Executive Director (2025) and Managing Counsel (2017 – 2025), Assistant Vice President, Senior Legal Counsel (2012 – 2016), Legal Counsel (2008 – 2011), Janus Henderson Investors. |
| &nbsp;&nbsp;&nbsp; Molly Possehl<br> (1978) | Anti-Money<br>Laundering<br>Officer | Since 2019 | Anti-Money Laundering Officer, TF and TST (2019 – present);<br> Anti-Money Laundering Officer, TET (2019 – 2024);<br> Anti-Money Laundering Officer, TAAVF (2019 – 2023);<br> Anti-Money Laundering Compliance Officer and Fraud Officer, Transamerica Life Insurance Company/Aegon USA (2015 – present);<br> Senior Director, Compliance, Transamerica Life Insurance Company (2021 – present);<br> Assistant General Counsel, Transamerica Life Insurance Company/Aegon USA (2013 – 2021). |
| &nbsp;&nbsp;&nbsp; Sean Ryan<br> (1981) | Assistant<br>Treasurer | Since 2024 | Assistant Treasurer, TF and TST (2024 – present);<br> Senior Manager of Fund Treasury, TAM (2022 – present);<br> Senior Director of Registered Fund Accounting (2021 – 2022) and Vice President of Registered Fund Accounting (2010 – 2021), SS&C ALPS. |
| &nbsp;&nbsp;&nbsp; Kari Seabrands<br> (1969) | Treasurer | Since 2025 | Treasurer, TF and TST (2025 – present);<br> Senior Director, Head of Global Fund Services, Russell Investments (2023 – 2025);<br> Treasurer, Chief Accounting Officer and Chief Financial Officer, Russell Investment Company ("RIC"), Russell Investment Funds ("RIF"), Russell Investments Exchange Traded Funds, Russell Investments Strategic Credit Fund and Russell Investment New Economy Infrastructure Fund (2023 – 2025);<br> Director, Russell Investments Financial Services, LLC and Russell Investments Fund Services, LLC (2023 – 2025);<br> Director, Fund Administration, Russell Investments (2012 – 2023)<br> Assistant Treasurer, RIC and RIF (2012 – 2023). |
| &nbsp;&nbsp;&nbsp; Christopher A. Staples, CFA<br> (1970) | Vice President<br>and Chief<br>Investment<br>Officer, Advisory<br>Services | Since 2005 | Vice President and Chief Investment Officer, Advisory Services, TF and TST (2007 – present);<br> Vice President and Chief Investment Officer, TET (2017 – 2024);<br> Vice President and Chief Investment Officer, Advisory Services, TAAVF (2007 – 2023);<br> Vice President and Chief Investment Officer, Advisory Services, TPP, TPFG and TPFG II (2007 – 2018);<br> Director (2005 – 2019), Senior Vice President (2006 – present), Senior Director, Investments (2016 – present), Chief Investment Officer, Advisory Services (2012 – 2016) and Lead Portfolio Manager (2007 – present), TAM;<br> Director, TFS (2005 – 2019);<br> Trust Officer, Transamerica Trust Company (formerly, Massachusetts Fidelity Trust Company) (2010 – 2022);<br> Registered Representative, TCL (2007 – 2016);<br> Registered Representative, TFA (2005 – present). |
| &nbsp;&nbsp;&nbsp; Thomas R. Wald, CFA<br> (1960) | Vice President<br>and Chief<br>Investment<br>Officer | Since 2014 | Chief Investment Officer, TF and TST (2014 – present);<br> Chief Investment Officer, TET (2017 – 2024);<br> Chief Investment Officer, TAAVF (2014 – 2023);<br> Chief Investment Officer, TPP, TPFG and TPFG II (2014 – 2018);<br> Director, Akaan Transamerica, S.A. de C.V., Sociedad Operadora de Fondos de Inversión (2017 – 2020);<br> Chief Investment Officer, Transamerica Investments & Retirement (2014 – 2020);<br> Senior Vice President, Chief Investment Officer and Director, TAM (2014 – present);<br> Director, TFS (2019 – 2021);<br> Trust Officer, Transamerica Trust Company (formerly, Massachusetts Fidelity Trust Company) (2015 – 2022). |

---

\* Elected and serves at the pleasure of the Board of the Trust.

**\* \* \*** 

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

**August 28, 2025**