Datadog COO sells 13,812 shares at $212.90

Datadog’s Chief Operating Officer sold shares mainly to cover taxes on vested equity, retaining a sizable direct stake.

Rhea-AI Filing Summary

Datadog, Inc. executive Adam Blitzer, its Chief Operating Officer, reported a sale of 13,812 shares of Class A Common Stock on September 2, 2026 at a weighted-average price of $212.9041 per share, in a transaction described as a sale in the open market or a private transaction.

According to the company’s disclosure, Blitzer was required by Datadog to sell only the number of shares necessary to cover tax withholding obligations and related brokerage commissions arising from the vesting of restricted stock units and performance-based restricted stock units. After this sale, he directly holds 249,959 shares of Datadog Class A Common Stock. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Seller: 13,812 shares

Net Sell 1 txn

Insider Blitzer Adam

Role Chief Operating Officer

Sold 13,812 shs ($2.94M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2	13,812	$212.9041	$2.94M

Holdings After Transaction: Class A Common Stock — 249,959 shares (Direct)

Footnotes (2)

1. F1. 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.
2. F2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $210.12 to $213.01. 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.

Key Figures

Shares sold: 13,812 shares Weighted-average sale price: $212.9041 per share Sale price range: $210.12–$213.01 per share +1 more

4 metrics

Shares sold 13,812 shares Class A Common Stock sold on September 2, 2026

Weighted-average sale price $212.9041 per share Average price for shares sold on September 2, 2026

Sale price range $210.12–$213.01 per share Range of prices for the reported sales

Shares held after transaction 249,959 shares Direct Class A Common Stock holdings after the sale

Key Terms

restricted stock units, performance-based restricted stock units, weighted-average sales price, tax withholding obligations

4 terms

restricted stock units financial

"upon the vesting of restricted stock units and performance-based restricted"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

performance-based restricted stock units financial

"vesting of restricted stock units and performance-based restricted stock"

Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.

weighted-average sales price financial

"Price reported is a weighted-average sales price. The shares were sold"

tax withholding obligations financial

"shares of common stock necessary to cover applicable tax withholding obligations"

FAQ

What insider transaction did Datadog (DDOG) report for Adam Blitzer?

Datadog reported that Chief Operating Officer Adam Blitzer sold 13,812 shares of Class A Common Stock on September 2, 2026, at a weighted-average price of $212.9041 per share, classified as a sale in the open market or a private transaction.

Why did the Datadog (DDOG) COO sell 13,812 shares?

The sale covered applicable tax withholding obligations and related brokerage commissions from the vesting of restricted stock units and performance-based restricted stock units. The disclosure states he was required by Datadog to sell only the number of shares needed for these obligations.

What price did the Datadog (DDOG) COO receive for the shares sold?

The reported weighted-average sales price was $212.9041 per share. A footnote states the shares were actually sold at prices ranging from $210.12 to $213.01, and detailed trade-level information is available upon request.

How many Datadog (DDOG) shares does Adam Blitzer hold after this transaction?

Following the September 2, 2026 transaction, Chief Operating Officer Adam Blitzer directly holds 249,959 shares of Datadog Class A Common Stock, as reported in the filing’s post-transaction holdings figure.

Was the Datadog (DDOG) COO’s share sale under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirming a plan, and the footnotes do not state that the transaction was made pursuant to a Rule 10b5-1 trading plan.

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

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Available on EDGAR 09/04/2026 - 04:37 PM Accepted by SEC EDGAR 09/04/2026 - 04:37 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).

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^*

Blitzer Adam

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2026

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	09/02/2026		S(1)		13,812	D	$212.9041(2)	249,959	D

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

Explanation of Responses:

1. 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.

2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $210.12 to $213.01. 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.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	09/04/2026
	** 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)