Datadog (NASDAQ: DDOG) Chief Revenue Officer discloses stock sales

Rhea-AI Filing Summary

Datadog, Inc.’s Chief Revenue Officer sold shares of the company’s Class A common stock and updated their remaining holdings. On December 11, 2025, the officer sold 5,187 Class A shares at a weighted-average price of $149.5103 and 4,651 Class A shares at a weighted-average price of $150.2014.

After these transactions, the officer directly owned 171,654 Class A common shares and indirectly owned 8 shares through a son. The disclosure notes that the sales were made under a pre-arranged Rule 10b5-1 trading plan dated December 10, 2024.

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^*

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)
12/11/2025

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	12/11/2025		S(1)		5,187	D	$149.5103(2)	176,305	D
Class A Common Stock	12/11/2025		S(1)		4,651	D	$150.2014(3)	171,654	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 $148.95 to $149.92. 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.

3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $149.95 to $150.77. 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	12/15/2025
	** 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 insider stock transaction did Datadog (DDOG) report in this Form 4?

The Chief Revenue Officer of Datadog, Inc. reported sales of Class A common stock, disposing of 5,187 shares in one transaction and 4,651 shares in a second transaction.

When did the Datadog (DDOG) Chief Revenue Officer sell shares and at what prices?

The reported sales occurred on December 11, 2025. One sale involved 5,187 Class A shares at a weighted-average price of $149.5103, and the other involved 4,651 shares at a weighted-average price of $150.2014.

How many Datadog (DDOG) shares does the executive own after the reported trades?

Following the reported transactions, the Chief Revenue Officer directly owned 171,654 shares of Datadog Class A common stock and indirectly owned 8 shares through a son.

Were the Datadog (DDOG) insider sales made under a Rule 10b5-1 trading plan?

Yes. The explanation states that the shares were sold pursuant to a Rule 10b5-1 plan dated December 10, 2024, which is a pre-arranged trading plan for equity securities.

Does this Datadog (DDOG) Form 4 include any derivative securities transactions?

No derivative security trades are shown. The table for derivative securities is present but does not list any acquired or disposed derivative positions.

What is the reporting person’s role and relationship to Datadog (DDOG)?

The reporting person is identified as an officer of Datadog, serving as the company’s Chief Revenue Officer, and is therefore an insider for reporting purposes.