# EDGAR Filing Document

**Accession Number:** 0000892538
**File Stem:** 0001193125-25-135672
**Filing Date:** 2025-6
**Character Count:** 4768
**Document Hash:** 3eca9cede8725748b558d58acdaa122d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-135672.hdr.sgml**: 20250605

**ACCESSION NUMBER**: 0001193125-25-135672

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250605

**DATE AS OF CHANGE**: 20250605

**EFFECTIVENESS DATE**: 20250605

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SUNAMERICA SERIES TRUST
- **CENTRAL INDEX KEY:** 0000892538

**ORGANIZATION NAME:**
- **EIN:** 137002445
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0131

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-52742
- **FILM NUMBER:** 251026547

**BUSINESS ADDRESS:**
- **STREET 1:** 21650 OXNARD STREET, 10TH FLOOR
- **CITY:** WOODLAND HILLS
- **STATE:** CA
- **ZIP:** 91367
- **BUSINESS PHONE:** 551-235-3560

**MAIL ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **STREET 2:** 16TH FLOOR
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302

## Series and Classes Contracts Data

### SA Large Cap Index Portfolio (Series ID: S000008076)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000021956 |
| Class 3    | C000183180 |

---

### SA International Index Portfolio (Series ID: S000056257)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000177071 |
| Class 3    | C000177072 |

---

### SA Mid Cap Index Portfolio (Series ID: S000056258)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000177073 |
| Class 3    | C000177074 |

---

### SA Small Cap Index Portfolio (Series ID: S000056259)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000177075 |
| Class 3    | C000177076 |

---

### SA Large Cap Growth Index Portfolio (Series ID: S000061754)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000199989 |
| Class 3    | C000199990 |

---

### SA Large Cap Value Index Portfolio (Series ID: S000061755)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000199991 |
| Class 3    | C000199992 |

---

### SA Emerging Markets Equity Index Portfolio (Series ID: S000061756)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class 1    | C000199993 |
| Class 3    | C000199994 |

---

## Series and Classes Contracts Data

### SA Large Cap Index Portfolio (Series ID: S000008076)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021956 | Class 1      |  |
| C000183180 | Class 3      |  |

### SA International Index Portfolio (Series ID: S000056257)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000177071 | Class 1      |  |
| C000177072 | Class 3      |  |

### SA Mid Cap Index Portfolio (Series ID: S000056258)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000177073 | Class 1      |  |
| C000177074 | Class 3      |  |

### SA Small Cap Index Portfolio (Series ID: S000056259)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000177075 | Class 1      |  |
| C000177076 | Class 3      |  |

### SA Large Cap Growth Index Portfolio (Series ID: S000061754)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000199989 | Class 1      |  |
| C000199990 | Class 3      |  |

### SA Large Cap Value Index Portfolio (Series ID: S000061755)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000199991 | Class 1      |  |
| C000199992 | Class 3      |  |

### SA Emerging Markets Equity Index Portfolio (Series ID: S000061756)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000199993 | Class 1      |  |
| C000199994 | Class 3      |  |

**Filed under Rules 497(e) and 497(k)** 

**Registration No. 33-52742** 

**SunAmerica Series Trust** 

SA Emerging Markets Equity Index Portfolio

SA International Index Portfolio

SA Large Cap Growth Index Portfolio

SA Large Cap Index Portfolio

SA Large Cap Value Index Portfolio

SA Mid Cap Index Portfolio

SA Small Cap Index Portfolio

(the "Portfolios" and each, a "Portfolio")

Supplement dated June 5, 2025 to each Portfolio's

Summary Prospectus, Prospectus and Statement of Additional Information ("SAI"),

each dated May 1, 2025, as supplemented and amended to date

Mr. Paul Whitehead, a portfolio manager of the Portfolios with BlackRock Investment Management, LLC, will be leaving the firm at the end of June 2025. Accordingly, references to Mr. Whitehead are hereby removed from the Portfolios' Summary Prospectuses, Prospectus and SAI as of the close of business on June 30, 2025.

Capitalized terms used but not defined herein shall have the meanings assigned to them by the Summary

Prospectuses, Prospectus or SAI, as applicable.

**PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.** 

ST3179IN.14 (6/25)