[Form 4] Datadog, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Olivier Pomel, Chief Executive Officer and a director of Datadog, Inc. (DDOG), reported multiple transactions on 10/07/2025–10/09/2025

He sold a total of 122,482 shares of Class A common stock under a 10b5-1 plan at weighted-average prices ranging from $152.59 to $165.25. The filings also record option activity: 38,118 stock options were exercised (strike $0.9092), and several conversions/acquisitions of Class B shares into Class A shares were recorded. After the reported transactions, the filing shows beneficial ownership of 533,358 shares of Class A common stock.

Positive

• Compliance with 10b5-1 plan — sales were executed under a pre-established written plan dated 9/13/2024
• Low strike option exercise — 38,118 options exercised at a $0.9092 strike, suggesting limited cash cost to convert holdings

Negative

• Substantial share disposition — 122,482 Class A shares sold between 10/07/2025 and 10/09/2025, reducing immediate beneficial ownership
• Concentration of activity over three days — multiple large sales and conversions occurred in a short window, materially changing reported holdings

Insights

Corporate Insider Transactions Analyst

Insider sold material blocks under a preset 10b5-1 plan and exercised low-strike options.

The reporting shows scheduled sales totaling 122,482 Class A shares executed between 10/07/2025 and 10/09/2025 under a 10b5-1 plan, with weighted-average prices reported across specified ranges. Concurrently, 38,118 options were exercised at a $0.9092 strike, increasing share exposure subject to conversion rules.

Primary dependencies are the continuing 10b5-1 plan instructions and conversion features of Class B shares; monitor subsequent Section 16 filings for additional scheduled sales or conversions over the coming weeks.

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^*

Pomel Olivier

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
10/07/2025

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	10/07/2025		C(1)		21,728	A	$0	555,086	D
Class A Common Stock	10/07/2025		C(1)		11,195	A	$0	566,281	D
Class A Common Stock	10/07/2025		S(2)		7,218	D	$153.2808(3)	559,063	D
Class A Common Stock	10/07/2025		S(2)		15,439	D	$154.2979(4)	543,624	D
Class A Common Stock	10/07/2025		S(2)		5,863	D	$154.973(5)	537,761	D
Class A Common Stock	10/07/2025		S(2)		4,403	D	$156.0211(6)	533,358	D
Class A Common Stock	10/08/2025		C(1)		25,620	A	$0	558,978	D
Class A Common Stock	10/08/2025		S(2)		25,620	D	$165.0058(7)	533,358	D
Class A Common Stock	10/09/2025		C(1)		63,939	A	$0	597,297	D
Class A Common Stock	10/09/2025		S(2)		63,939	D	$165.0199(8)	533,358	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
Stock Option (Right to Buy)	$0.9092	10/07/2025		M			38,118	(9)	10/24/2027	Class B Common Stock	38,118	$0	914,820	D
Class B Common Stock	(1)	10/07/2025		M		38,118		(1)	(1)	Class A Common Stock	38,118	$0.9092	8,576,220	D
Class B Common Stock	(1)	10/07/2025		C(1)			32,923	(1)	(1)	Class A Common Stock	32,923	$0	8,543,297	D
Class B Common Stock	(1)	10/08/2025		C(1)			25,620	(1)	(1)	Class A Common Stock	25,620	$0	8,517,677	D
Class B Common Stock	(1)	10/08/2025		C(1)			63,939	(1)	(1)	Class A Common Stock	63,939	$0	8,453,738	D

Explanation of Responses:

1. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon the earliest of: (i) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's amended and restated certificate of incorporation, (ii) the death of the Reporting Person in the case of shares held directly or in a trustee capacity, and (iii) the tenth anniversary of the Issuer's initial public offering of its Class A Common Stock.

2. Shares sold pursuant to a 10b5-1 plan dated September 13, 2024.

3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $152.5900 to $153.5800. 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 $153.5900 to $154.5850. 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.

5. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $154.5900 to $155.5700. 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.

6. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $155.5900 to $156.4700. 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.

7. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $165.0000 to $165.0600. 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.

8. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $165.0000 to $165.2500. 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.

9. Option is fully vested and exercisable.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	10/08/2025
	** 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 CEO Olivier Pomel report on Form 4 (DDOG)?

He reported sales of 122,482 Class A shares executed 10/07/2025–10/09/2025 under a 10b5-1 plan and the exercise of 38,118 stock options at a $0.9092 strike.

Were the sales part of a 10b5-1 trading plan for DDOG?

Yes. The filing indicates the sales were made pursuant to a 10b5-1 plan dated 9/13/2024.

What were the price ranges for the reported DDOG sales?

Weighted-average sales prices reported span ranges with specific trades between $152.59 and $165.25 across different sale blocks.

How many Class A shares does Olivier Pomel beneficially own after these transactions?

The Form 4 reports beneficial ownership of 533,358 Class A common shares following the reported transactions.

Did Pomel convert or acquire any Class B shares in these filings?

The filing records conversions/acquisitions of Class B shares (convertible into Class A) and related entries; conversion terms state each Class B converts into one Class A share under specified conditions.