Datadog technology chief sells 43,224 shares

The sales were made under a Rule 10b5-1 plan dated June 13, 2025, and the reported holdings include shares held by a revocable trust.

Rhea-AI Filing Summary

Datadog, Inc. Chief Technology Officer Alexis Le-Quoc converted 43,224 Class B shares into 43,224 Class A shares on September 23, 2026, and sold 43,224 Class A shares that day. The eight reported sale tranches had weighted-average prices ranging from $249.2082 to $256.1465 per share and were made under a Rule 10b5-1 plan dated June 13, 2025. After the conversion, he directly held 2,160,030 Class B shares; the Alexis Le-Quoc Revocable Trust held 6,146,835 Class B shares and 169 Class A shares.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 12 txns

Insider Le-Quoc Alexis

Role Chief Technology Officer

Sold 43,224 shs ($10.90M)

Approx. gross sale proceeds $10.90M

Type	Security	Shares	Price	Value
Conversion	Class B Common Stock F1	43,224	$0.00	$0.00
Conversion	Class A Common Stock F1	43,224	$0.00	$0.00
Sale	Class A Common Stock F2, F3	645	$249.2082	$161K
Sale	Class A Common Stock F2, F4	1,372	$250.5526	$344K
Sale	Class A Common Stock F2, F5	22,007	$251.4458	$5.53M
Sale	Class A Common Stock F2, F6	9,633	$252.3567	$2.43M
Sale	Class A Common Stock F2, F7	5,347	$253.3223	$1.35M
Sale	Class A Common Stock F2, F8	2,000	$254.3497	$509K
Sale	Class A Common Stock F2, F9	1,600	$255.5912	$409K
Sale	Class A Common Stock F2, F10	620	$256.1465	$159K
holding	Class B Common Stock F1, F11	--	--	--
holding	Class A Common Stock F11	--	--	--

Holdings After Transaction: Class B Common Stock — 2,160,030 contracts (Direct); Class A Common Stock — 488,033 shares (Direct); Class B Common Stock — 6,146,835 contracts (Indirect, By Trust); Class A Common Stock — 169 shares (Indirect, By Trust)

Footnotes (11)

1. F1. 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. F2. Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.
3. F3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $248.85 to $249.74. 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. F4. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $249.89 to $250.86. 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. F5. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $250.91 to $251.90. 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. F6. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $251.92 to $252.88. 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. F7. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $252.92 to $253.89. 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. F8. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $254.00 to $254.90. 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. F9. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $255.06 to $255.97. 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. F10. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $256.08 to $256.39. 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. F11. Shares are held by the Alexis Le-Quoc Revocable Trust.

Key Figures

Class A shares sold: 43,224 shares Class B shares converted into Class A: 43,224 shares Weighted-average sale prices by tranche: $249.2082–$256.1465 per share +3 more

6 metrics

Class A shares sold 43,224 shares September 23, 2026

Class B shares converted into Class A 43,224 shares September 23, 2026

Weighted-average sale prices by tranche $249.2082–$256.1465 per share Eight reported sale tranches on September 23, 2026

Direct Class B shares after conversion 2,160,030 shares Reported after the September 23, 2026 transaction

Class B shares held by Alexis Le-Quoc Revocable Trust 6,146,835 shares Reported September 23, 2026

Class A shares held by Alexis Le-Quoc Revocable Trust 169 shares Reported September 23, 2026

Key Terms

10b5-1 plan, weighted-average sales price, Permitted Transfers

3 terms

10b5-1 plan regulatory

"Shares sold pursuant to a 10b5-1 plan"

A 10b5-1 plan is a pre-arranged strategy that allows company insiders to buy or sell their shares at predetermined times and prices, even while they are aware of confidential information. It acts like a scheduled appointment for trading, helping ensure transactions happen transparently and legally, which can reassure investors that trades are not based on insider knowledge.

weighted-average sales price financial

"Price reported is a weighted-average sales price"

Permitted Transfers regulatory

"except for certain "Permitted Transfers""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many DDOG shares did its chief technology officer sell, and at what prices?

Alexis Le-Quoc sold 43,224 Class A shares on September 23, 2026, across eight reported sale tranches. The weighted-average prices for those tranches ranged from $249.2082 to $256.1465 per share.

How does DDOG Class B stock convert into Class A stock?

Each Class B share is convertible at any time at the reporting person's option into one Class A share and has no expiration date. Automatic conversion occurs upon the earliest of a transfer, except certain permitted transfers; the reporting person's death for shares held directly or in a trustee capacity; or the tenth anniversary of the issuer's initial public offering of Class A stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/25/2026 - 04:44 PM Accepted by SEC EDGAR 09/25/2026 - 04:43 PM Learn about SEC filing dates

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)
09/23/2026

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	09/23/2026		C(1)		43,224	A	$0	531,257	D
Class A Common Stock	09/23/2026		S(2)		645	D	$249.2082(3)	530,612	D
Class A Common Stock	09/23/2026		S(2)		1,372	D	$250.5526(4)	529,240	D
Class A Common Stock	09/23/2026		S(2)		22,007	D	$251.4458(5)	507,233	D
Class A Common Stock	09/23/2026		S(2)		9,633	D	$252.3567(6)	497,600	D
Class A Common Stock	09/23/2026		S(2)		5,347	D	$253.3223(7)	492,253	D
Class A Common Stock	09/23/2026		S(2)		2,000	D	$254.3497(8)	490,253	D
Class A Common Stock	09/23/2026		S(2)		1,600	D	$255.5912(9)	488,653	D
Class A Common Stock	09/23/2026		S(2)		620	D	$256.1465(10)	488,033	D
Class A Common Stock								169	I	By Trust(11)

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)	09/23/2026		C			43,224	(1)	(1)	Class A Common Stock	43,224	$0	2,160,030	D
Class B Common Stock	(1)							(1)	(1)	Class A Common Stock	6,146,835		6,146,835	I	By Trust(11)

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 $248.85 to $249.74. 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 $249.89 to $250.86. 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 $250.91 to $251.90. 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 $251.92 to $252.88. 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 $252.92 to $253.89. 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 $254.00 to $254.90. 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 $255.06 to $255.97. 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 $256.08 to $256.39. 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. Shares are held by the Alexis Le-Quoc Revocable Trust.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	09/25/2026
	** 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)