Datadog (DDOG) CTO Le-Quoc sells 21,612 shares under 10b5-1 plan

Rhea-AI Filing Summary

Datadog, Inc. Chief Technology Officer Alexis Le-Quoc reported multiple insider transactions involving Datadog stock. On February 23, 2026, he executed open-market sales totaling 21,612 shares of Class A Common Stock, at various weighted-average prices between roughly the low $100s and low $110s per share, under a Rule 10b5-1 trading plan dated June 13, 2025.

He also exercised stock options for 112,500 shares of Class B Common Stock and converted 21,612 shares of Class B Common Stock into the same number of Class A shares, all with a stated price of 0.0000 per share for the conversions. Indirectly, shares are held by the Alexis Le-Quoc Revocable Trust, which holds 6,203,835 shares of Class B Common Stock and 169 shares of Class A Common Stock after these transactions.

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)
02/23/2026

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	02/23/2026		C(1)		21,612	A	$0	512,410	D
Class A Common Stock	02/23/2026		S(2)		7,712	D	$102.0909(3)	504,698	D
Class A Common Stock	02/23/2026		S(2)		1,300	D	$103.0998(4)	503,398	D
Class A Common Stock	02/23/2026		S(2)		2,800	D	$104.0233(5)	500,598	D
Class A Common Stock	02/23/2026		S(2)		800	D	$105.235(6)	499,798	D
Class A Common Stock	02/23/2026		S(2)		3,900	D	$106.2876(7)	495,898	D
Class A Common Stock	02/23/2026		S(2)		1,100	D	$107.336(8)	494,798	D
Class A Common Stock	02/23/2026		S(2)		1,600	D	$108.4381(9)	493,198	D
Class A Common Stock	02/23/2026		S(2)		1,600	D	$109.4182(10)	491,598	D
Class A Common Stock	02/23/2026		S(2)		400	D	$110.425(11)	491,198	D
Class A Common Stock	02/23/2026		S(2)		400	D	$111.2993(12)	490,798	D
Class A Common Stock								169	I	By Trust(13)

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
Class B Common Stock	(1)	02/23/2026		C(1)			21,612	(1)	(1)	Class A Common Stock	21,612	$0	2,563,814	D
Stock Option (Right to Buy)	$10.74	02/23/2026		M			112,500	(14)	07/19/2029	Class B Common Stock	112,500	$0	262,500	D
Class B Common Stock	(1)	02/23/2026		M		112,500		(1)	(1)	Class A Common Stock	112,500	$10.74	2,676,314	D
Class B Common Stock	(1)							(1)	(1)	Class A Common Stock	6,203,835		6,203,835	I	By Trust(13)

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 June 13, 2025.

3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $101.58 to $102.56. 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 $102.58 to $103.57. 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 $103.58 to $104.52. 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 $104.83 to $105.76. 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 $105.87 to $106.85. 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 $106.88 to $107.84. 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. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $107.98 to $108.97. 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.

10. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $108.98 to $109.9. 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.

11. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $110.05 to $110.97. 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.

12. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $111.06 to $111.45. 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.

13. Shares are held by the Alexis Le-Quoc Revocable Trust.

14. Option is fully vested and exercisable.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	02/25/2026
	** 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

How many Datadog (DDOG) shares did Alexis Le-Quoc sell in this Form 4?

Alexis Le-Quoc reported open-market sales totaling 21,612 shares of Datadog Class A Common Stock. These sales occurred on February 23, 2026 at various weighted-average prices in the low $100s to low $110s, as detailed in the transaction table and footnotes.

Were Alexis Le-Quoc’s Datadog (DDOG) stock sales made under a 10b5-1 plan?

Yes, the filing states the shares sold were pursuant to a Rule 10b5-1 trading plan dated June 13, 2025. Such plans allow insiders to pre-schedule trades, helping separate their transactions from short-term market information or discretionary timing decisions.

What derivative Datadog (DDOG) securities did Alexis Le-Quoc exercise or convert?

Le-Quoc exercised a stock option for 112,500 shares of Class B Common Stock and reported it as fully vested and exercisable. He also reported the conversion of 21,612 Class B shares into 21,612 Class A shares, both recorded at a stated price of 0.0000 per share.

What Datadog (DDOG) shares does the Alexis Le-Quoc Revocable Trust hold?

The Alexis Le-Quoc Revocable Trust holds 6,203,835 shares of Datadog Class B Common Stock and 169 shares of Class A Common Stock on an indirect basis. The filing notes these positions as held "By Trust," indicating indirect ownership separate from Le-Quoc’s direct holdings.

What types of Datadog (DDOG) stock classes appear in Alexis Le-Quoc’s Form 4?

The Form 4 lists both Class A Common Stock and Class B Common Stock. Class B shares are convertible into Class A on a one-for-one basis and automatically convert upon certain transfers, the reporting person’s death in some cases, or the tenth anniversary of Datadog’s initial public offering.

How many Datadog (DDOG) stock sales were reported, and what were the price ranges?

The summary data shows 10 sale transactions of Class A Common Stock. Footnotes explain that each reported weighted-average price covers shares sold in ranges, for example from around $101.58 to $111.45, with detailed per-price breakdowns available upon request from Alexis Le-Quoc.