TAHIRI MOSTAPHA 4
4 · STATE STREET CORP · Filed May 19, 2026
Research Summary
AI-generated summary of this filing
State Street EVP Mostapha Tahiri Withholds 91 Shares for Taxes
What Happened Mostapha Tahiri, EVP and COO of State Street Corp (STT), had 91 shares withheld to satisfy tax withholding obligations tied to the vesting of previously awarded deferred stock. The shares were valued at $152.85 each for a total of $13,909 (reported as a disposition via tax withholding).
Key Details
- Transaction date: 2026-05-15; Price: $152.85 per share; 91 shares withheld; total ≈ $13,909.
- Transaction type/code: F — shares withheld to cover tax liability (disposition).
- Filing date: 2026-05-19 (filed within the typical two-business-day reporting window).
- Shares owned after the transaction: not disclosed on this Form 4.
- Footnote: F1 — shares were withheld to satisfy tax withholding obligations in connection with the vesting of previously awarded deferred stock.
Context This was a tax-withholding disposal related to the vesting of deferred equity (not an open-market sale or purchase). Such withholdings are routine administrative actions to cover taxes and generally do not signal a change in the insider’s view of the company.
Insider Transaction Report
Form 4
TAHIRI MOSTAPHA
EVP and COO
Transactions
- Tax Payment
Common Stock
[F1]2026-05-15$152.85/sh−91$13,909→ 64,551 total
Footnotes (1)
- [F1]These shares were withheld to satisfy tax withholding obligations in connection with the vesting of previously awarded deferred stock.
Signature
/s/ Shannon C. Stanley, Attorney-in-fact|2026-05-19