Datadog (DDOG) General Counsel reports planned insider stock sales in Form 4

Rhea-AI Filing Summary

Datadog, Inc. insider transaction: The company’s General Counsel and Secretary, who is an officer of Datadog, reported selling Class A common stock on 12/05/2025. The filing shows three open-market sales of Class A common stock under transaction code "S," which indicates sales.

The officer sold 2,238 shares at a weighted-average price of $150.8607, 1,500 shares at a weighted-average price of $151.9109, and 200 shares at a weighted-average price of $152.71. After these transactions, the officer beneficially owned 84,463 shares of Datadog Class A common stock directly.

The sales were made pursuant to a pre-arranged Rule 10b5-1 trading plan, which was modified on May 30, 2025, and the reported prices are weighted averages over ranges disclosed in the footnotes.

Insider Trade Summary

Net Seller: 3,938 shares ($596,035)

Net Sell 3 txns

Insider Acocella Kerry

Role General Counsel and Secretary

Sold 3,938 shs ($596K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	2,238	$150.8607	$338K
Sale	Class A Common Stock	1,500	$151.9109	$228K
Sale	Class A Common Stock	200	$152.71	$31K

Holdings After Transaction: Class A Common Stock — 86,163 shares (Direct)

Footnotes (1)

1. Shares sold pursuant to a 10b5-1 plan modified pursuant to Rule 10b5-1(c)(1)(iv) on May 30, 2025. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $150.48 to $151.42. 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. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $151.49 to $152.45. 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. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $152.64 to $152.78. 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.

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Form 4 Insider Transactions: What Each Field Means →

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^*

Acocella Kerry

(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)
	General Counsel and Secretary

3. Date of Earliest Transaction (Month/Day/Year)
12/05/2025

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	12/05/2025		S(1)		2,238	D	$150.8607(2)	86,163	D
Class A Common Stock	12/05/2025		S(1)		1,500	D	$151.9109(3)	84,663	D
Class A Common Stock	12/05/2025		S(1)		200	D	$152.71(4)	84,463	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. Shares sold pursuant to a 10b5-1 plan modified pursuant to Rule 10b5-1(c)(1)(iv) on May 30, 2025.

2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $150.48 to $151.42. 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 $151.49 to $152.45. 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.

4. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $152.64 to $152.78. 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	12/09/2025
	** 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 transaction did Datadog (DDOG) report in this Form 4?

Datadog reported that its General Counsel and Secretary, an officer of the company, sold shares of Class A common stock on 12/05/2025 in a series of open-market transactions.

How many Datadog (DDOG) shares did the officer sell on 12/05/2025?

The officer sold 2,238 shares, 1,500 shares, and 200 shares of Datadog Class A common stock in three separate transactions on 12/05/2025.

At what prices were the Datadog (DDOG) shares sold by the officer?

The reported prices are weighted-average sales prices: $150.8607 per share for 2,238 shares, $151.9109 per share for 1,500 shares, and $152.71 per share for 200 shares, each over specified price ranges.

How many Datadog (DDOG) shares does the officer still own after these sales?

Following the reported transactions, the officer beneficially owned 84,463 shares of Datadog Class A common stock directly.

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

Yes. The filing states that the shares were sold pursuant to a 10b5-1 plan that was modified pursuant to Rule 10b5-1(c)(1)(iv) on May 30, 2025.

What do the weighted-average prices in the Datadog (DDOG) Form 4 mean?

Each reported price is a weighted-average sales price for multiple trades executed within a price range. The officer has agreed to provide the exact number of shares sold at each separate price within those ranges upon request.