SPDR^® Series Trust

Supplement dated May 2, 2022 to the currently effective Prospectuses,

as may be supplemented from time to time

Effective immediately, the “Lending of Securities” discussion in the “ADDITIONAL STRATEGIES INFORMATION” section is replaced with the following:

Lending of Securities. Each Fund may lend its portfolio securities in an amount not to exceed 40% of the value of its net assets via a securities lending program through its securities lending agent, State Street Bank and Trust Company (“State Street” or the “Lending Agent”), to brokers, dealers and other financial institutions desiring to borrow securities to complete transactions and for other purposes. A securities lending program allows a Fund to receive a portion of the income generated by lending its securities and investing the respective collateral. A Fund will receive collateral for each loaned security which is at least equal to the market value of that security, marked to market each trading day. To the extent a Fund receives cash collateral, as of the date of this Prospectus, the Adviser expects to invest such cash collateral in a fund managed by the Adviser that invests in: a broad range of money market instruments; certificates of deposit and time deposits of U.S. and foreign banks; commercial paper and other high quality obligations of U.S. or foreign companies; asset-backed securities; mortgage-related securities; repurchase agreements; and shares of money market funds. In the securities lending program, the borrower generally has the right to vote the loaned securities; however, a Fund may call loans to vote proxies if a material issue affecting the Fund’s economic interest in the investment is to be voted upon. Security loans may be terminated at any time by a Fund.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

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