Datadog (NASDAQ: DDOG) CTO converts Class B and sells 32,418 Class A shares

Rhea-AI Filing Summary

Datadog, Inc. director and Chief Technology Officer Alexis Le-Quoc reported a planned share sale following a stock conversion. On January 28, 2026, he converted 32,418 shares of Class B Common Stock into an equal number of Class A shares at $0 per share.

He then sold those 32,418 Class A shares in multiple trades under a Rule 10b5-1 trading plan dated June 13, 2025, at weighted-average prices ranging from about $139.89 to $142.74. After these transactions, he held 301,458 Class A shares directly, plus 169 Class A shares and 6,203,835 Class B shares indirectly through the Alexis Le-Quoc Revocable Trust.

Insider Trade Summary

Net Seller: 32,418 shares ($4,570,511)

Net Sell 8 txns

Insider Le-Quoc Alexis

Role Chief Technology Officer

Sold 32,418 shs ($4.57M)

Type	Security	Shares	Price	Value
Conversion	Class B Common Stock	32,418	$0.00	--
Conversion	Class A Common Stock	32,418	$0.00	--
Sale	Class A Common Stock	3,331	$139.8875	$466K
Sale	Class A Common Stock	17,352	$140.677	$2.44M
Sale	Class A Common Stock	9,927	$141.5786	$1.41M
Sale	Class A Common Stock	1,808	$142.7365	$258K
holding	Class B Common Stock	--	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class B Common Stock — 2,609,782 shares (Direct); Class A Common Stock — 333,876 shares (Direct); Class B Common Stock — 6,203,835 shares (Indirect, By Trust); Class A Common Stock — 169 shares (Indirect, By Trust)

Footnotes (1)

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. Shares sold pursuant to a 10b5-1 plan dated June 13, 2025. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $139.21 to $140.20. 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 $140.21 to $141.20. 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 $141.21 to $142.17. 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$142.29 to $143.23. 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. Shares are held by the Alexis Le-Quoc Revocable Trust.

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^*

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)
01/28/2026

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	01/28/2026		C(1)		32,418	A	$0	333,876	D
Class A Common Stock	01/28/2026		S(2)		3,331	D	$139.8875(3)	330,545	D
Class A Common Stock	01/28/2026		S(2)		17,352	D	$140.677(4)	313,193	D
Class A Common Stock	01/28/2026		S(2)		9,927	D	$141.5786(5)	303,266	D
Class A Common Stock	01/28/2026		S(2)		1,808	D	$142.7365(6)	301,458	D
Class A Common Stock								169	I	By Trust(7)

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)	01/28/2026		C(1)			32,418	(1)	(1)	Class A Common Stock	32,418	$0	2,609,782	D
Class B Common Stock	(1)							(1)	(1)	Class A Common Stock	6,203,835		6,203,835	I	By Trust(7)

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 $139.21 to $140.20. 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 $140.21 to $141.20. 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 $141.21 to $142.17. 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$142.29 to $143.23. 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. Shares are held by the Alexis Le-Quoc Revocable Trust.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	01/30/2026
	** 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

What did Datadog (DDOG) CTO Alexis Le-Quoc report in this Form 4 filing?

Alexis Le-Quoc reported converting 32,418 shares of Datadog Class B Common Stock into Class A shares, then selling those 32,418 Class A shares in multiple trades on January 28, 2026, under a pre-arranged Rule 10b5-1 trading plan dated June 13, 2025.

How many Datadog (DDOG) shares did Alexis Le-Quoc sell and at what prices?

He sold a total of 32,418 Class A shares in four tranches: 3,331, 17,352, 9,927, and 1,808 shares, at weighted-average prices of $139.8875, $140.6770, $141.5786, and $142.7365 per share, respectively, all executed on January 28, 2026.

What is the relationship between Datadog’s Class A and Class B shares in this filing?

Each Datadog Class B share is convertible into one Class A share at any time at the holder’s option and has no expiration date. Class B shares also automatically convert to Class A upon certain transfers, the holder’s death, or the tenth anniversary of Datadog’s initial public offering.

How many Datadog (DDOG) shares does Alexis Le-Quoc own after these transactions?

After the reported trades, he directly owned 301,458 Class A shares. Indirectly, through the Alexis Le-Quoc Revocable Trust, he held 169 Class A shares and 6,203,835 Class B shares, which are convertible into an equal number of Class A shares under the terms described.

Was the Datadog (DDOG) insider sale by Alexis Le-Quoc under a 10b5-1 plan?

Yes. The filing states that the reported Class A share sales on January 28, 2026, were made pursuant to a Rule 10b5-1 trading plan dated June 13, 2025, indicating these transactions were pre-arranged according to predetermined instructions rather than decided at the trade date.

What role does the Alexis Le-Quoc Revocable Trust play in these Datadog (DDOG) holdings?

The filing notes that certain shares are held by the Alexis Le-Quoc Revocable Trust. Specifically, the trust holds 169 Class A shares and 6,203,835 Class B shares, giving it indirect ownership of a substantial portion of Le-Quoc’s Datadog equity position alongside his direct shareholdings.