Transaction · 0000093751-26-000571

TAHIRI MOSTAPHA

TAHIRI MOSTAPHA, EC, reported a transaction classified as withholding at STATE STREET CORP involving 54.000000 shares for an estimated $10353.96. Reported holdings after the transaction were 64497.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FEC
STTSTATE STREET CORP
Filing timeAug 18
Trade dateAug 14, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$191.87
Pre-filing
1mo ago -2.8%1w ago -3.7%1d ago -1.1%
Returns since
7d -0.2%30d -2.1%90d -2.1%180d -2.1%1y -2.1%

STT price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
STT since 2026-08-18Filed 17 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0000093751-26-000571
Common Stock
Transaction date
Aug 14, 2026
Filed Aug 18, 2026, 08:02 PM · 4d delay
Shares
54 sh
$19.1k per share
Estimated value
-$1.03M
Computed from shares × price
Holdings after
64.4k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-16score
Filing-only score

-16

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

EVP and COO

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    These shares were withheld to satisfy tax withholding obligations in connection with the vesting of previously awarded deferred stock.

Original filing · 0000093751-26-000571
Related transactions

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Same reporting owner
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