Mostapha Tahiri, Executive Vice President and Chief Operating Officer of State Street Corporation, filed a Form 4 on August 18, 2026, disclosing a transaction in State Street common stock dated August 14, 2026.

Key Highlights

  • Reporting person: Mostapha Tahiri, EVP and COO of State Street Corporation
  • Transaction type: 54 shares of common stock disposed of (transaction code F) on August 14, 2026
  • Price per share: $191.74
  • Purpose: Shares withheld to satisfy tax withholding obligations in connection with the vesting of previously awarded deferred stock
  • Resulting ownership: 64,497 shares of common stock held directly following the transaction

State Street COO Tahiri Discloses Tax Withholding on Deferred Stock Vesting

According to the filing, Mostapha Tahiri, who serves as Executive Vice President and Chief Operating Officer at State Street Corporation (NYSE:STT), reported the disposition of 54 shares of State Street common stock on August 14, 2026. The transaction was coded "F," indicating shares withheld by the issuer rather than an open-market sale.

The filing's footnote states that "these shares were withheld to satisfy tax withholding obligations in connection with the vesting of previously awarded deferred stock." The 54 shares were disposed of at a price of $191.74 per share. Following this transaction, Tahiri directly holds 64,497 shares of State Street common stock, according to the filing.

No derivative securities transactions were reported in Table II of the filing. The Form 4 was signed by Shannon C. Stanley as attorney-in-fact on August 18, 2026, and was filed as an individual report by a single reporting person. No amendment to a prior filing was indicated.

What Was Disclosed

Mostapha Tahiri, EVP and COO of State Street Corporation, disclosed the withholding of 54 shares of common stock at $191.74 per share on August 14, 2026, for tax purposes related to deferred stock vesting, leaving him with 64,497 directly held shares.