Filed under Rule 497(e)

Registration No. 333-08653

Seasons Series Trust

SA Allocation Aggressive Portfolio

SA Allocation Balanced Portfolio

SA Allocation Moderate Portfolio

SA Allocation Moderately Aggressive Portfolio

(the “Portfolios”)

Supplement dated June 24, 2026

to the Portfolios’ Statement of Additional Information (“SAI”)

dated April 30, 2026, as supplemented and amended to date

Effective July 1, 2026, in the table under the section entitled “PORTFOLIO MANAGERS – Other Accounts,” in the section pertaining to SunAmerica Asset Management, LLC (“SunAmerica”), the information pertaining to Andrew Sheridan is hereby deleted and replaced with the following:

 

Adviser/

Subadviser

  Portfolio
Managers
  Other Accounts
(As of March 31, 2026)
  Registered
Investment
Companies
   Pooled Investment
Vehicles
  Other Accounts
  No. of
Accounts 
  Assets
(in millions)
 

No. of

 Accounts 

 

 Total Assets 

(in millions)

 

No. of

Accounts 

  Total Assets
(in millions) 

 SunAmerica 

     

 Singh, Manisha 

 Wu, Robert


     

12

12


     

 $15,158,241,189 

 $15,158,241,189 


     


     


     


     


In the table under the section entitled “PORTFOLIO MANAGERS – Ownership of Portfolio Shares by Portfolio Managers,” in the section pertaining to SunAmerica, the information pertaining to Andrew Sheridan is hereby deleted and replaced with the following:

 

Portfolio   Adviser/Subadvisers   Portfolio Managers  

Dollar Range of Equity

Securities in the Portfolio

Owned by the Portfolio

Managers

Seasons Managed Allocation Portfolio

 

SunAmerica

 

Singh, Manisha

Wu, Robert

 

None

None

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

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.

SSTSAI-SUP4 (6/26)