Block exec sells 8,173 shares under 10b5-1 plan

Block, Inc. (XYZ) executive Brian Grassadonia, Ecosystem Lead, reported several transactions in Class A Common Stock.

Rhea-AI Filing Summary

Block, Inc. (XYZ) executive Brian Grassadonia, Ecosystem Lead, reported several transactions in Class A Common Stock. On August 20, 2026, 9,592 shares were withheld at $80.08 per share to satisfy income tax obligations on net-settled restricted stock units, which the company notes does not represent a sale by him. On August 24, 2026, he sold 3,830 shares at $81.88 per share and 4,343 shares at $82.90 per share in open-market or private transactions under a Rule 10b5-1 trading plan adopted on June 2, 2025. The filing does not state his total holdings after these transactions.

Insider Trade Summary 10b5-1

Net Seller: 8,173 shares

Net Sell 3 txns

Insider Grassadonia Brian

Role Ecosystem Lead

Sold 8,173 shs ($674K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F2, F3	3,830	$81.88	$314K
Sale	Class A Common Stock F2, F4	4,343	$82.90	$360K
Tax Withholding	Class A Common Stock F1	9,592	$80.08	$768K

Holdings After Transaction: Class A Common Stock — 513,981 shares (Direct)

Footnotes (4)

1. F1. Represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the net settlement of restricted stock units and does not represent a sale by the Reporting Person.
2. F2. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on June 2, 2025.
3. F3. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $81.41 to $82.38 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote.
4. F4. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $82.46 to $83.38 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote.

Key Figures

Shares sold August 24, 2026 (block 1): 3,830 shares at $81.88 per share Shares sold August 24, 2026 (block 2): 4,343 shares at $82.90 per share Shares withheld for taxes August 20, 2026: 9,592 shares at $80.08 per share +2 more

5 metrics

Shares sold August 24, 2026 (block 1) 3,830 shares at $81.88 per share Sale of Class A Common Stock by Brian Grassadonia

Shares sold August 24, 2026 (block 2) 4,343 shares at $82.90 per share Sale of Class A Common Stock by Brian Grassadonia

Shares withheld for taxes August 20, 2026 9,592 shares at $80.08 per share Shares withheld to satisfy income tax and withholding obligations on RSUs

Net sell shares 8,173 shares Net of reported buy/sell transactions in transaction summary

Rule 10b5-1 plan adoption date June 2, 2025 Governs the August 24, 2026 sale transactions

Key Terms

Rule 10b5-1 trading plan, weighted average sale price, net settlement of restricted stock units, income tax and withholding and remittance obligations

4 terms

Rule 10b5-1 trading plan regulatory

"The sale reported on this Form 4 was 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.

weighted average sale price financial

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

net settlement of restricted stock units financial

"in connection with the net settlement of restricted stock units and does not represent a sale"

income tax and withholding and remittance obligations financial

"to satisfy its income tax and withholding and remittance obligations in connection"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did Block, Inc. (XYZ) report for Brian Grassadonia?

Block reported that Ecosystem Lead Brian Grassadonia had 9,592 shares withheld on August 20, 2026 to cover taxes on RSUs and sold 3,830 shares at $81.88 and 4,343 shares at $82.90 on August 24, 2026.

Were the August 24, 2026 Block, Inc. (XYZ) share sales pre-planned?

Yes. The August 24, 2026 sales of Block, Inc. (XYZ) Class A Common Stock by Brian Grassadonia were effected under a Rule 10b5-1 trading plan that was adopted on June 2, 2025, according to the filing footnotes.

Did Block, Inc. (XYZ) report any tax-related share withholdings for Brian Grassadonia?

Yes. On August 20, 2026, 9,592 shares of Block, Inc. (XYZ) Class A Common Stock were withheld at $80.08 per share to satisfy income tax and withholding obligations for net settlement of restricted stock units.

What prices were received in Brian Grassadonia’s Block, Inc. (XYZ) share sales?

On August 24, 2026, 3,830 shares were sold at a weighted average price of $81.88 and 4,343 shares at a weighted average price of $82.90. Footnotes state each was a weighted average sale price over multiple trades within specified price ranges.

Do the reported tax withholdings for Block, Inc. (XYZ) count as a sale by the insider?

No. The filing states that the 9,592 shares withheld on August 20, 2026 to satisfy income tax obligations on restricted stock units do not represent a sale by Brian Grassadonia.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 08/24/2026 - 07:55 PM EDT Accepted by SEC EDGAR 08/24/2026 - 07:54 PM EDT Learn about SEC filing dates

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).

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^*

Grassadonia Brian

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Ecosystem Lead

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2026

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
Class A Common Stock	08/20/2026		F		9,592(1)	D	$80.08	522,154	D
Class A Common Stock	08/24/2026		S(2)		3,830	D	$81.88(3)	518,324	D
Class A Common Stock	08/24/2026		S(2)		4,343	D	$82.9(4)	513,981	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. Represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the net settlement of restricted stock units and does not represent a sale by the Reporting Person.

2. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on June 2, 2025.

3. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $81.41 to $82.38 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote.

4. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $82.46 to $83.38 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range set forth in this footnote.

Remarks:

	/s/ Tyler Owens, Attorney-in-Fact	08/24/2026
	** 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)