[Form 4] Datadog, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Alexis Le-Quoc, Chief Technology Officer and Director of Datadog, Inc. (DDOG), reported multiple transactions on 09/02/2025. The filing shows acquisitions and conversions of Class B and Class A shares, exercises of employee stock options, and several open-market sales executed pursuant to a 10b5-1 plan and to cover tax withholding on vested RSUs. Notable actions: exercise of 54,000 options at a $0.9092 strike and 18,750 options at a $10.74 strike; purchases/conversions of 30,780 and 10,688 Class B shares; and multiple sales totaling ~66,351 Class A shares at weighted-average prices in the $132.07–$135.52 range. Shares are held directly and indirectly, including 6,326,835 shares held indirectly by the Alexis Le-Quoc Revocable Trust.

Positive

• Executed option exercises (54,000 at $0.9092 and 18,750 at $10.74) showing continued participation in company equity
• Large indirect ownership disclosed: 6,326,835 shares held by the Alexis Le-Quoc Revocable Trust
• Sales conducted under a 10b5-1 plan, providing procedural protection and pre-planned execution

Negative

• Open-market sales of approximately 66,351 Class A shares reduced direct beneficial holdings at weighted-average prices of ~$132–$135
• Issuer-required sales to cover tax withholding on vested RSUs indicate dilution of immediate insider-held shares

Insights

Securities Analyst

TL;DR: Insider executed option exercises and systematic 10b5-1 sales, modestly reducing public Class A holdings while holding significant indirect stake.

The reporting shows standard management equity activity: large-scale option exercises at specified strike prices and planned sales under a pre-existing 10b5-1 plan. The exercises increased underlying economic exposure before some shares were sold in the open market. Sales were executed at weighted-average prices between approximately $132 and $135 per share, with specific weighted ranges documented. The filing also clarifies substantial indirect ownership through a revocable trust totaling 6,326,835 shares, indicating continued long-term alignment with shareholders.

Corporate Governance Expert

TL;DR: Transactions appear consistent with routine executive compensation monetization and tax-related sales under a Rule 10b5-1 plan and issuer requirements.

The report discloses sales required to satisfy tax withholding on RSU vesting and sales under a 10b5-1 plan dated September 5, 2023, which supports an affirmative defense to insider trading allegations. The mix of direct and indirect ownership and the trustee-held shares are disclosed clearly. No indication of unplanned insider disposals or mergers; activity aligns with documented compensation mechanics and pre-established trading plan.

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)
09/02/2025

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	09/02/2025		C		30,780	A	(1)	483,549	D
Class A Common Stock	09/02/2025		C		10,688	A	(1)	494,237	D
Class A Common Stock	09/02/2025		S(2)		10,290	D	$132.6429(3)	483,947	D
Class A Common Stock	09/02/2025		S(2)		12,115	D	$133.5435(4)	471,832	D
Class A Common Stock	09/02/2025		S(2)		16,255	D	$134.5453(5)	455,577	D
Class A Common Stock	09/02/2025		S(2)		2,808	D	$135.2303(6)	452,769	D
Class A Common Stock	09/02/2025		S(7)		13,884	D	$133.8468(8)	438,885	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)	$0.9092	09/02/2025		M			54,000	(10)	10/25/2027	Class B Common Stock	54,000	$0	54,000	D
Class B Common Stock	(1)	09/02/2025		M		54,000		(1)	(1)	Class A Common Stock	54,000	$0	2,680,296	D
Class B Common Stock	(1)	09/02/2025		C			30,780	(1)	(1)	Class A Common Stock	30,780	$0	2,649,516	D
Stock Option (Right to Buy)	$10.74	09/02/2025		M			18,750	(10)	07/19/2029	Class B Common Stock	18,750	$0	468,750	D
Class B Common Stock	(1)	09/02/2025		M		18,750		(1)	(1)	Class A Common Stock	18,750	$0	2,668,266	D
Class B Common Stock	(1)	09/02/2025		C			10,688	(1)	(1)	Class A Common Stock	10,688	$0	2,657,578	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 $132.07 to $133.06. 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 $133.07 to $134.05. 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 $134.07 to $135.06. 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 $135.07 to $135.52. 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.

7. The Reporting Person was required by the Issuer to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units, as well as any related brokerage commission fees.

8. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $ 132.92 to $133.85. 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.

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	09/03/2025
	** 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 transactions did DDOG insider Alexis Le-Quoc report on 09/02/2025?

The report discloses option exercises (54,000 at $0.9092 and 18,750 at $10.74), acquisitions/conversions of Class B shares (30,780 and 10,688), and multiple sales of Class A shares under a 10b5-1 plan and for tax withholding.

How many shares does Alexis Le-Quoc beneficially own indirectly?

The filing shows 6,326,835 shares held indirectly by the Alexis Le-Quoc Revocable Trust.

Were any sales executed under a pre-established trading plan for DDOG?

Yes. Several sales were executed pursuant to a 10b5-1 plan dated September 5, 2023, with weighted-average sale prices reported.

At what prices were the reported DDOG shares sold?

The weighted-average sales prices for reported transactions ranged approximately from $132.07 to $135.52, with separate weighted ranges disclosed for different sale tranches.

Why were some shares sold according to the filing?

The filing states sales were made pursuant to a 10b5-1 plan and that the issuer required sales to cover applicable tax withholding obligations realized upon RSU vesting, plus related brokerage commissions.