Sean Michael Walters - Oct 1, 2025 Form 4 Insider Report for Datadog, Inc. (DDOG)

Signature
/s/ Kerry Acocella, Attorney-in-Fact
Stock symbol
DDOG
Transactions as of
Oct 1, 2025
Transactions value $
-$438,725
Form type
4
Date filed
10/3/2025, 04:01 PM
Previous filing
Sep 12, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Walters Sean Michael Chief Revenue Officer C/O DATADOG, INC., 620 8TH AVENUE, 45TH FLOOR, NEW YORK /s/ Kerry Acocella, Attorney-in-Fact 2025-10-03 0001903980

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DDOG Class A Common Stock Sale -$439K -2.92K -1.5% $150.04 192K Oct 1, 2025 Direct F1, F2
holding DDOG Class A Common Stock 8 Oct 1, 2025 By Son
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 Shares sold pursuant to a 10b5-1 plan dated December 10, 2024.
F2 Price reported is a weighted-average sales price. The shares were sold at prices ranging from $150 to $150.14. 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.