[Form 4] Datadog, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Datadog (DDOG) reported insider transactions by its Chief Technology Officer and director on 11/11/2025. The reporting person exercised 18,750 stock options at an exercise price of $10.74, converted 10,688 Class B shares into Class A, and sold Class A shares in multiple tranches pursuant to a Rule 10b5-1 plan.

Sales included 9,905 shares at a weighted-average price of $196.7772 and 29,407 shares at a weighted-average price of $197.6483, with additional tranches reported. Following the transactions, the filer directly owned 395,661 Class A shares and indirectly owned 169 Class A shares by trust. Class B shares are convertible 1:1 into Class A at any time.

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^*

Le-Quoc Alexis

(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 Technology Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/11/2025

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	11/11/2025		C		10,688	A	(1)	449,573	D
Class A Common Stock	11/11/2025		S(2)		9,905	D	$196.7772(3)	439,668	D
Class A Common Stock	11/11/2025		S(2)		29,407	D	$197.6483(4)	410,261	D
Class A Common Stock	11/11/2025		S(2)		5,522	D	$198.609(5)	404,739	D
Class A Common Stock	11/11/2025		S(2)		6,143	D	$199.7648(6)	398,596	D
Class A Common Stock	11/11/2025		S(2)		2,555	D	$200.46(7)	396,041	D
Class A Common Stock	11/11/2025		S(2)		380	D	$201.4263(8)	395,661	D
Class A Common Stock								169	I	By Trust(9)

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)	$10.74	11/11/2025		M			18,750	(10)	07/19/2029	Class B Common Stock	18,750	$0	431,250	D
Class B Common Stock	(1)	11/11/2025		M		18,750		(1)	(1)	Class A Common Stock	18,750	$10.74	2,707,610	D
Class B Common Stock	(1)	11/11/2025		C			10,688	(1)	(1)	Class A Common Stock	10,688	$0	2,696,922	D
Class B Common Stock	(1)							(1)	(1)	Class A Common Stock	6,326,835		6,326,835	I	By Trust(9)

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 5, 2023.

3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $196.1700 to $197.1600. 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 $197.1700 to $198.1500. 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 $198.1700 to $199.1600. 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 $199.2400 to $200.2100. 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 $200.2500 to $200.9700. 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 $201.3200 to $201.5300. 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. Shares are held by the Alexis Le-Quoc Revocable Trust.

10. Option is fully vested and exercisable.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	11/13/2025
	** 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 activity did Datadog (DDOG) disclose?

The CTO/director exercised 18,750 options at $10.74, converted 10,688 Class B to Class A, and sold Class A shares in multiple tranches under a 10b5-1 plan on 11/11/2025.

What were example sale sizes and prices in the DDOG Form 4?

Examples include 9,905 shares at $196.7772 and 29,407 shares at $197.6483, with additional tranches at weighted-average prices disclosed.

How many Datadog shares did the insider own after the trades?

395,661 Class A shares were owned directly and 169 Class A shares indirectly by trust after the reported transactions.

Were the Datadog sales made under a 10b5-1 plan?

Yes. The filing states the shares were sold pursuant to a Rule 10b5-1 plan dated September 5, 2023.

What is the conversion feature of Datadog’s Class B shares?

Each Class B share converts 1:1 into Class A at any time at the holder’s option; automatic conversion can occur under specified conditions.