POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby constitutes and
appoints each of Mark Shelton, Jeremy Kream, Shannon C. Stanley,
Betsy Oliphant and Amy Doherty, or each of them signing singly,
and with full power of substitution, the undersigned's true and lawful
attorney-in-fact to: (1) prepare, execute in the undersigned's name and
 on the undersigned's behalf, and submit to the U.S. Securities and
Exchange Commission (the "SEC") a Form ID, including amendments thereto,
and any other documents necessary or appropriate to obtain codes
and passwords enabling the undersigned to make electronic filings
with the SEC of reports required by Section 16(a) of the Securities
Exchange Act of 1934 or any rule or regulation of the SEC;
(2) execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer and/or director of State Street Corporation
(the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a)
of the Securities Exchange Act of 1934 and the rules thereunder;
(3) do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such
Form 3, 4, or 5, complete and execute any amendment or amendments
thereto, and file such form with the United States Securities and
Exchange Commission and any stock exchange or similar authority;
and
(4) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf
of the undersigned pursuant to this Power of Attorney shall be in such form
and shall contain such terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the
rights and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted.
The undersigned acknowledges that the foregoing attorneys-in-fact,
in serving in such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange
Act of 1934.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect
to the undersigned's holdings of and transactions in securities issued by
the Company, unless earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 9th day of January 2024.
Signature:  /s/ Mostapha Tahiri
Print Name: Mostapha Tahiri