Datadog (NASDAQ: DDOG) CTO sells 32,418 shares under 10b5-1 plan

Rhea-AI Filing Summary

Datadog, Inc. Chief Technology Officer Alexis Le-Quoc converted 32,418 shares of Class B Common Stock into Class A Common Stock, then sold 32,418 Class A shares in multiple open-market transactions on March 23, 2026.

The shares were sold at weighted-average prices ranging from about $124.72 to $130.05 per share under a pre-arranged Rule 10b5-1 trading plan dated June 13, 2025. Following the sales, Le-Quoc directly holds 451,823 Class A shares and has indirect ownership, through the Alexis Le-Quoc Revocable Trust, of 6,203,835 Class B shares that are convertible into an equal number of Class A shares.

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 NEW YORK 10018

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	03/23/2026		C		32,418	A	(1)	469,675	D
Class A Common Stock	03/23/2026		S(2)		400	D	$124.72(3)	469,275	D
Class A Common Stock	03/23/2026		S(2)		11,306	D	$125.668(4)	457,969	D
Class A Common Stock	03/23/2026		S(2)		1,760	D	$127.3276(5)	456,209	D
Class A Common Stock	03/23/2026		S(2)		4,386	D	$128.1773(6)	451,823	D
Class A Common Stock	03/23/2026		S(2)		12,259	D	$129.246(7)	439,564	D
Class A Common Stock	03/23/2026		S(2)		2,307	D	$130.0469(8)	437,257	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
Class B Common Stock	(1)	03/23/2026		C			32,418	(1)	(1)	Class A Common Stock	32,418	$0	2,608,734	D
Class B Common Stock	(1)							(1)	(1)	Class A Common Stock	6,203,835		6,203,835	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 June 13, 2025.

3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $124.50 to $124.95. 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 $125.66 to $126.35. 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 $126.72 to $127.71. 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 $127.72 to $128.63. 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 $128.74 to $129.71. 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 $129.78 to $130.57. 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.

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

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	03/25/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Datadog (DDOG) report for CTO Alexis Le-Quoc?

Datadog reported that CTO Alexis Le-Quoc converted 32,418 Class B shares into Class A, then sold 32,418 Class A shares in open-market trades on March 23, 2026 under a Rule 10b5-1 trading plan.

How many Datadog (DDOG) shares did the CTO sell and at what prices?

Alexis Le-Quoc sold 32,418 shares of Datadog Class A Common Stock in several open-market transactions at weighted-average prices ranging from about $124.72 to $130.05 per share, according to the Form 4 transaction detail and related pricing footnotes.

Was the Datadog (DDOG) CTO stock sale made under a 10b5-1 plan?

Yes. The filing states the shares were sold pursuant to a Rule 10b5-1 trading plan dated June 13, 2025, indicating the trades were pre-arranged rather than discretionary, which can make the timing less informative about the insider’s short-term view.

How many Datadog (DDOG) shares does CTO Alexis Le-Quoc hold after this Form 4?

After the reported transactions, Alexis Le-Quoc directly owns 451,823 Class A shares and indirectly owns 6,203,835 Class B shares through the Alexis Le-Quoc Revocable Trust, which are convertible into an equal number of Class A shares at the holder’s option.

What is the difference between Datadog (DDOG) Class A and Class B shares in this filing?

The filing notes each share of Class B Common Stock is convertible at any time into one share of Class A Common Stock with no expiration. Class B shares also automatically convert into Class A upon specified events, including certain transfers, the holder’s death, or a defined IPO anniversary.

Does this Datadog (DDOG) Form 4 show remaining derivative positions for the CTO?

Yes. The derivative holdings section shows an indirect position of 6,203,835 Class B shares held via trust, with each Class B share convertible into one Class A share at an exercise price of $0.00 and no stated expiration date in the summary.