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 Portfolios
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)