DDOG officer Walters sold 2,924 shares under 10b5-1 plan

Rhea-AI Filing Summary

Sean Michael Walters, identified as an officer (Chief Revenue Officer), reported the sale of 2,924 shares of Class A common stock of Datadog, Inc. (DDOG) on 10/01/2025. The sale was made pursuant to a 10b5-1 plan dated December 10, 2024. The weighted-average sales price for the reported transactions was $150.0427, with individual trade prices ranging from $150.00 to $150.14. Following the reported sale, the reporting person beneficially owned 191,957 shares directly and 8 shares indirectly (held by his son). The Form 4 was signed on behalf of the reporting person by an attorney-in-fact, Kerry Acocella, on 10/03/2025.

Positive

• Sale executed under a 10b5-1 plan, indicating trades were prearranged
• Weighted-average price disclosed ($150.0427) with price range ($150.00–$150.14)

Negative

• Insider sold 2,924 shares, reducing direct holdings to 191,957

Insights

Corporate Governance Analyst

Insider executed a planned sale under an established 10b5-1 arrangement.

The filing shows a 2,924-share disposition at a weighted-average price of $150.0427, executed under a 10b5-1 plan dated December 10, 2024. A 10b5-1 plan specifies pre-arranged trades to reduce concerns about trading on material non-public information.

This transaction reduced the reporting person's direct holdings to 191,957 shares while leaving an 8-share indirect holding in a family member's name. The filing was signed by an attorney-in-fact on 10/03/2025, consistent with procedural execution of the plan.

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
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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).

1. Name and Address of Reporting Person^*

Walters Sean Michael

(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 Revenue Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2025

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	10/01/2025		S(1)		2,924	D	$150.0427(2)	191,957	D
Class A Common Stock								8	I	By Son

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. Shares sold pursuant to a 10b5-1 plan dated December 10, 2024.

2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $150 to $150.14. 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	10/03/2025
	** 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 Sean Walters sell on 10/01/2025?

The Form 4 reports a sale of 2,924 shares of Class A common stock on 10/01/2025.

At what price were the DDOG shares sold by Sean Walters?

The weighted-average sales price was $150.0427; individual trade prices ranged from $150.00 to $150.14.

Was the sale by the Datadog executive part of a trading plan?

Yes. The sale was made pursuant to a 10b5-1 plan dated December 10, 2024.

How many Datadog shares does Sean Walters own after the reported transaction?

Following the reported sale, the reporting person beneficially owned 191,957 shares directly and 8 shares indirectly.

Who signed the Form 4 for the Datadog insider filing?

The Form 4 was signed by an attorney-in-fact, Kerry Acocella, on 10/03/2025.