State Street (NYSE: STT) EVP and COO Mostapha Tahiri sells 9,611 shares

Rhea-AI Filing Summary

STATE STREET CORP executive Mostapha Tahiri reported an open-market sale of company stock. As EVP and COO, he sold 9,611 shares of State Street common stock on April 22, 2026 in an open-market transaction at a weighted average price of $152.93 per share, with individual trades ranging from $152.89 to $153.02. After this sale, he directly holds 64,642 State Street common shares, indicating he retains a substantial equity stake even after the transaction.

Insider Trade Summary

Net Seller: 9,611 shares ($1,469,810)

Net Sell 1 txn

Insider TAHIRI MOSTAPHA

Role EVP and COO

Sold 9,611 shs ($1.47M)

Type	Security	Shares	Price	Value
Sale	Common Stock	9,611	$152.93	$1.47M

Holdings After Transaction: Common Stock — 64,642 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 9,611 shares Weighted average sale price: $152.93 per share Sale price range: $152.89–$153.02 per share +1 more

4 metrics

Shares sold 9,611 shares Open-market sale of State Street common stock on April 22, 2026

Weighted average sale price $152.93 per share Average price across multiple sale transactions

Sale price range $152.89–$153.02 per share Range of individual execution prices for the reported sale

Shares held after transaction 64,642 shares Direct ownership of State Street common stock following the sale

Key Terms

open-market sale, weighted average price, Form 4, Common Stock

4 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Form 4 regulatory

"within the ranges set forth in this Form 4."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

TAHIRI MOSTAPHA

(Last) (First) (Middle)

STATE STREET CORPORATION

ONE CONGRESS STREET

(Street)

BOSTON MASSACHUSETTS 02114

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
STATE STREET CORP [ STT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/22/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/22/2026		S		9,611	D	$152.93(1)	64,642	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.89 through $153.02, inclusive. The reporting person undertakes to provide to State Street Corporation, any security holder of State Street Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Remarks:

	/s/ Shannon C. Stanley, Attorney-in-fact	04/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did STATE STREET CORP (STT) report for Mostapha Tahiri?

STATE STREET CORP reported that EVP and COO Mostapha Tahiri sold 9,611 shares of common stock. The open-market sale took place on April 22, 2026, and was reported on Form 4 as a routine insider transaction in State Street shares.

At what price did Mostapha Tahiri sell STATE STREET CORP (STT) shares?

Mostapha Tahiri sold 9,611 STATE STREET CORP shares at a weighted average price of $152.93. According to the filing, individual trades occurred between $152.89 and $153.02 per share, reflecting multiple executions within a narrow intraday price range.

How many STATE STREET CORP (STT) shares does Mostapha Tahiri hold after this sale?

After selling 9,611 shares, Mostapha Tahiri directly holds 64,642 shares of STATE STREET CORP common stock. This remaining position shows he continues to have a meaningful personal equity stake in the company following the reported open-market transaction.

What role does Mostapha Tahiri hold at STATE STREET CORP (STT)?

Mostapha Tahiri serves as Executive Vice President and Chief Operating Officer at STATE STREET CORP. His Form 4 filing reflects personal trading activity in company stock consistent with his status as a senior executive and Section 16 reporting person.

How was the sale of STATE STREET CORP (STT) shares by Mostapha Tahiri executed?

The filing describes the transaction as an open-market sale of common stock. The reported price is a weighted average across multiple trades, and the company notes it can provide the exact share counts at each separate execution price upon request.