[Form 4] Datadog, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Datadog insider sale to cover tax withholding: David Galloreese, Chief People Officer at Datadog (DDOG), reported a sale of 2,577 shares of Class A common stock on 09/02/2025 at a weighted-average price of $133.8469 per share. The filing states the shares were sold solely to cover tax withholding obligations arising from the vesting of restricted stock units and performance-based restricted stock units, including related brokerage fees. After the sale the reporting person beneficially owns 79,911 shares. The Form 4 was signed by an attorney-in-fact, Kerry Acocella, on 09/04/2025.

Positive

• Transparent disclosure of the sale purpose and weighted-average sale price with offer to provide price breakdowns on request
• Compliance with Section 16 reporting requirements and attorney-in-fact signature recorded

Negative

• None.

Insights

Securities Analyst

TL;DR Routine insider sale to satisfy tax withholding from vested equity; not indicative of change in ownership strategy.

The transaction is a small, disclosed disposition of 2,577 Class A shares executed at a weighted-average price of $133.8469 to cover tax obligations tied to vested RSUs and PSUs. The reporting person retains 79,911 shares after the sale, and the Form 4 was filed in compliance with Section 16 reporting requirements. There is no indication in the filing of additional planned sales or changes to compensation structure.

Corporate Governance Expert

TL;DR Compliant, routine reporting of tax-covering share sale by an executive, showing standard governance disclosure practices.

The disclosure clearly states the sale was required by the issuer to satisfy tax withholding on vested equity awards. The reporting as an individual filer and the attorney-in-fact signature reflect normal procedural handling. The filing provides weighted-average sale price and range of prices, with an offer to provide detailed tranche prices on request, which supports transparency.

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^*

Galloreese David

(Last) (First) (Middle)

C/O DATADOG, INC.

620 8TH AVENUE, 45TH FLOOR

(Street)

NEW YORK NY 10018

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Datadog, Inc. [ DDOG ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief People Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

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

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

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

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	09/02/2025		S(1)		2,577	D	$133.8469(2)	79,911	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 Reporting Person was required by the Issuer to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units, as well as any related brokerage commission fees.

2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $132.92 to $133.85. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	09/04/2025
	** 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.

FAQ

What did Datadog (DDOG) insider David Galloreese sell on 09/02/2025?

The filing reports a sale of 2,577 shares of Class A common stock on 09/02/2025.

Why were the Datadog shares sold by the reporting person?

The shares were sold solely to cover tax withholding obligations realized upon vesting of restricted stock units and performance-based restricted stock units, plus brokerage fees.

At what price were the shares sold in the DDOG Form 4?

The filing reports a weighted-average sale price of $133.8469 with individual sale prices ranging from $132.92 to $133.85.

How many Datadog shares does the reporting person own after the sale?

Following the reported transaction the reporting person beneficially owns 79,911 shares.

Who signed the Form 4 for the Datadog insider filing?

The Form 4 is signed by Kerry Acocella, Attorney-in-Fact on 09/04/2025.