Block, Inc. — Director's Dealing 2025

Oct 6, 2025

10/6/25, 2:09 PM

SEC FORM 4

SEC Form 4

FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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

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

for the purchase or sale of equitysecurities of the issuer that isintended to satisfy the affirmativedefense conditions of Rule 10b5-1(c). See Instruction 10.	for the purchase or sale of equitysecurities of the issuer that isintended to satisfy the affirmativedefense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*Jennings Owen Britton(Last)(First)(Middle)1955 BROADWAYSUITE 600(Street)OAKLANDCA94612(City)(State)(Zip)2. Issuer NameandTicker or Trading SymbolBlock, Inc. [XYZ]5. Relationship of Reporting Person(s) to Issuer(Check all applicable)Director10% OwnerXOfficer (give titlebelow)Other (specifybelow)BusinessLead3. Date of Earliest Transaction (Month/Day/Year)10/02/20254. If Amendment, Date of Original Filed (Month/Day/Year)6. Individual or Joint/Group Filing (Check ApplicableLine)XForm filed by One Reporting PersonForm filed by More than One ReportingPersonTable I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned1. Title of Security (Instr. 3)2. TransactionDate(Month/Day/Year)2A. DeemedExecution Date,if any(Month/Day/Year)3.TransactionCode (Instr.8)4. Securities Acquired (A) orDisposed Of (D) (Instr. 3, 4 and5)5. Amount ofSecuritiesBeneficiallyOwnedFollowingReportedTransaction(s)(Instr. 3 and 4)6. OwnershipForm: Direct(D) orIndirect (I)(Instr. 4)7. Natureof IndirectBeneficialOwnership(Instr. 4)CodeVAmount(A) or(D)PriceClass A Common Stock10/02/2025S1,050(1)D$ 74.77253,956DTable II - Derivative Securities Acquired, Disposed of, or Beneficially Owned(e.g., puts, calls, warrants, options, convertible securities)1. Title ofDerivativeSecurity(Instr. 3)2.Conversionor ExercisePrice ofDerivativeSecurity3. TransactionDate(Month/Day/Year)3A. DeemedExecution Date,if any(Month/Day/Year)4.TransactionCode (Instr.8)5.NumberofDerivativeSecuritiesAcquired(A) orDisposedof (D)(Instr. 3, 4and 5)6. Date Exercisable andExpiration Date(Month/Day/Year)7. Title andAmount ofSecuritiesUnderlyingDerivativeSecurity(Instr. 3 and 4)8. Price ofDerivativeSecurity(Instr. 5)9. Number ofderivativeSecuritiesBeneficiallyOwnedFollowingReportedTransaction(s)(Instr. 4)10.OwnershipForm:Direct (D)or Indirect(I) (Instr. 4)11. Natureof IndirectBeneficialOwnership(Instr. 4)CodeV(A)(D)DateExercisableExpirationDateTitleAmountorNumberofShares

Explanation of Responses:

1. Represents the number of shares automatically sold to satisfy the Issuer's income tax withholding and remittance obligations in connection with the vesting of restricted stock units.

Remarks:

/s/ Susan Szotek, Attorney-in10/06/2025 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).

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.

https://www.sec.gov/Archives/edgar/data/1512673/000162828025044351/xslF345X05/wk-form4_1759784818.xml

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