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  4. [Form 4] Block, Inc. Insider Trading Activity

Block (XYZ) director sells 18,000 shares over three days

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Block, Inc. (XYZ) director Eisen Anthony Mathew reported three sales of Class A Common Stock totaling 18,000 shares on August 17–19, 2026. The shares were sold in open market or private transactions at prices between $79.17 and $81.63 per share, pursuant to a Rule 10b5-1 trading plan adopted on March 2, 2026.

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Insights

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Insider Eisen Anthony Mathew
Role Director
Sold 18,000 shs ($1.44M)
Type Security Shares Price Value
Sale Class A Common Stock F1 6,000 $79.55 $477K
Sale Class A Common Stock F1 6,000 $79.17 $475K
Sale Class A Common Stock F1 6,000 $81.63 $490K
Holdings After Transaction: Class A Common Stock — 1,506,672 shares (Direct)
Footnotes (1)
  1. F1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on March 2, 2026.
Shares sold August 17, 2026 6,000 shares Class A Common Stock sold at $81.63 per share
Shares sold August 18, 2026 6,000 shares Class A Common Stock sold at $79.17 per share
Shares sold August 19, 2026 6,000 shares Class A Common Stock sold at $79.55 per share
Total shares sold 18,000 shares Aggregate of reported sales of Class A Common Stock
Rule 10b5-1 plan adoption date March 2, 2026 Trading plan under which the reported sales were effected
Rule 10b5-1 trading plan financial
"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Class A Common Stock financial
"security_title: Class A Common Stock in each reported transaction"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
open market or private transaction financial
"transaction_code_description: Sale in open market or private transaction"

FAQ

What insider transactions did Block, Inc. (XYZ) report in this Form 4?
Block, Inc. reported that director Eisen Anthony Mathew sold 18,000 shares of Class A Common Stock. The sales occurred over three days in August 2026 as open market or private transactions under a Rule 10b5-1 trading plan.

On what dates did the Block, Inc. (XYZ) director sell shares and at what prices?
Eisen Anthony Mathew sold shares on August 17, 18, and 19, 2026 at per-share prices of $81.63, $79.17, and $79.55, respectively. Each transaction involved 6,000 shares of Class A Common Stock.

How many Block, Inc. (XYZ) shares were sold in total in this filing?
The filing reports total sales of 18,000 shares of Block, Inc. Class A Common Stock. This total comes from three separate transactions of 6,000 shares each, as summarized in the Form 4 transaction overview.

Were the Block, Inc. (XYZ) insider sales made under a Rule 10b5-1 plan?
Yes. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on March 2, 2026. The Form 4 also marks the Rule 10b5-1 checkbox affirming plan-based transactions.

Who is the reporting person in the Block, Inc. (XYZ) Form 4 and what is their role?
The reporting person is Eisen Anthony Mathew, identified as a director of Block, Inc. The Form 4 lists only non-derivative transactions in the company’s Class A Common Stock associated with this director.

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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).
X
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*
Eisen Anthony Mathew
(Last)(First)(Middle)
1955 BROADWAY
SUITE 600
(Street)
OAKLAND CALIFORNIA 94612
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Block, Inc. [ XYZ ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Class A Common Stock08/17/2026S(1)6,000D$81.631,518,672D
Class A Common Stock08/18/2026S(1)6,000D$79.171,512,672D
Class A Common Stock08/19/2026S(1)6,000D$79.551,506,672D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on March 2, 2026.
Remarks:
/s/ Tyler Owens, Attorney-in-Fact08/19/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR