Block, Inc. — Director's Dealing 2025

Jul 27, 2025

7/25/25, 2:03 PM

SEC FORM 4

SEC Form 4

FORM 4

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

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

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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 X securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b51(c). See Instruction 10.

1. Name and Address of Reporting Person[[*]] Dale Ajmere

2. Name and Address of Reporting Person[[*]] 2. Issuer Name and Ticker or Trading Symbol 5. Relationship of Reporting Person(s) to Issuer Block, Inc. [ XYZ ] (Check all applicable) Dale Ajmere Director 10% Owner Officer (give title Other (specify X below) below) (Last) (First) (Middle) 3. Date of Earliest Transaction (Month/Day/Year) Chief 1955 BROADWAY 07/23/2025 Accounting SUITE 600 Officer (Street) 4. If Amendment, Date of Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable OAKLAND CA 94612 Line) X Form filed by One Reporting Person Form filed by More than One Reporting (City) (State) (Zip) Person Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1. Title of Security (Instr. 3) 2. Transaction 2A. Deemed 3. 4. Securities Acquired (A) or 5. Amount of 6. Ownership 7. Nature Date Execution Date, Transaction Disposed Of (D) (Instr. 3, 4 Securities Form: Direct of Indirect (Month/Day/Year) if any Code (Instr. and 5) Beneficially (D) or Beneficial (Month/Day/Year) 8) Owned Indirect (I) Ownership Following (Instr. 4) (Instr. 4) Reported Code V Amount (A) or Price Transaction(s) (D) (Instr. 3 and 4) Class A Common Stock 07/23/2025 S(1) 500 D $ 80 108,236 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned

(e.g., puts, calls, warrants, options, convertible securities)

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1. Title of 2. 3. Transaction 3A. Deemed 4. 5. 6. Date Exercisable and 7. Title and 8. Price of 9. Number of 10. 11. NatureDerivative Conversion Date Execution Date, Transaction Number Expiration Date Amount of Derivative derivative Ownership of IndirectSecurity or Exercise (Month/Day/Year) if any Code (Instr. of (Month/Day/Year) Securities Security Securities Form: Beneficial(Instr. 3) Price of (Month/Day/Year) 8) Derivative Underlying (Instr. 5) Beneficially Direct (D) OwnershipDerivative Securities Derivative Owned or Indirect (Instr. 4)Security Acquired Security Following (I) (Instr. 4)(A) or (Instr. 3 and 4) ReportedDisposed Transaction(s)of (D) (Instr. 4)(Instr. 3, 4and 5)AmountorNumberDate Expiration ofCode V (A) (D) Exercisable Date Title SharesExplanation of Responses:1. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on May 14, 2024.Remarks:----- End of picture text -----

/s/ Susan Szotek, Attorney-in07/25/2025 Fact ** 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).

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https://www.sec.gov/Archives/edgar/data/1512673/000168364525000004/xslF345X05/wk-form4_1753477229.xml

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