Important Notice Regarding Changes to Fund Names

SPDR® Series Trust

(the “Trust”)

Supplement dated October 16, 2026, to the

Summary Prospectuses, Prospectuses and Statement of Additional Information (“SAI”)

of certain series of the Trust (each, a “Fund”), each dated October 31, 2025, as may be supplemented from time to time

Effective October 31, 2026 (the “Effective Date”), each Fund’s name will change. Accordingly, as of the Effective Date, all references to each Fund in its Prospectus, Summary Prospectus and SAI will be updated as follows:

 

Current Fund Name

  

New Fund Name

State Street® SPDR® Portfolio Intermediate Term Treasury ETF    State Street® SPDR® Portfolio Intermediate Term Treasury Index ETF
State Street® SPDR® Portfolio Long Term Corporate Bond ETF    State Street® SPDR® Portfolio Long Term Corporate Bond Index ETF
State Street® SPDR® Portfolio Long Term Treasury ETF    State Street® SPDR® Portfolio Long Term Treasury Index ETF
State Street® SPDR® Portfolio Mortgage Backed Bond ETF    State Street® SPDR® Portfolio Mortgage Backed Bond Index ETF
State Street® SPDR® Portfolio Short Term Corporate Bond ETF    State Street® SPDR® Portfolio Short Term Corporate Bond Index ETF
State Street® SPDR® Portfolio Short Term Treasury ETF    State Street® SPDR® Portfolio Short Term Treasury Index ETF
State Street® SPDR® Portfolio Aggregate Bond ETF    State Street® SPDR® Portfolio Aggregate Bond Index ETF
State Street® SPDR® Portfolio Corporate Bond ETF    State Street® SPDR® Portfolio Corporate Bond Index ETF
State Street® SPDR® Portfolio High Yield Bond ETF    State Street® SPDR® Portfolio High Yield Bond Index ETF
State Street® SPDR® Portfolio Intermediate Term Corporate Bond ETF    State Street® SPDR® Portfolio Intermediate Term Corporate Bond Index ETF
State Street® SPDR® Portfolio Treasury ETF    State Street® SPDR® Portfolio Treasury Index ETF
State Street® SPDR® Portfolio TIPS ETF    State Street® SPDR® Portfolio TIPS Index ETF
State Street® SPDR® Portfolio Ultra Short T-Bill ETF    State Street® SPDR® Portfolio Ultra Short T-Bill Index ETF
State Street® SPDR® S&P Kensho Clean Power ETF    State Street® SPDR® S&P Kensho Grid Innovation ETF
State Street® SPDR® S&P 500® ESG ETF    State Street® SPDR® S&P 500® Scored and Screened ETF

These changes will not result in any changes to a Fund’s Investment Objective, Principal Investment Strategies or Principal Risks of Investing in the Fund.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

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