Adam Blitzer - Dec 2, 2025 Form 4 Insider Report for Datadog, Inc. (DDOG)

Role
Chief Operating Officer
Signature
/s/ Kerry Acocella, Attorney-in-Fact
Stock symbol
DDOG
Transactions as of
Dec 2, 2025
Transactions value $
-$2,589,769
Form type
4
Date filed
12/4/2025, 05:34 PM
Previous filing
Sep 4, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Blitzer Adam Chief Operating Officer C/O DATADOG, INC., 620 8TH AVENUE, 45TH FLOOR, NEW YORK /s/ Kerry Acocella, Attorney-in-Fact 2025-12-04 0001861590

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DDOG Class A Common Stock Sale -$1.35M -8.51K -4.68% $158.60 173K Dec 2, 2025 Direct F1
transaction DDOG Class A Common Stock Sale -$678K -4.41K -2.55% $153.85 169K Dec 3, 2025 Direct F2, F3
transaction DDOG Class A Common Stock Sale -$93K -601 -0.36% $154.74 168K Dec 3, 2025 Direct F2, F4
transaction DDOG Class A Common Stock Sale -$469K -3.01K -1.79% $155.69 165K Dec 3, 2025 Direct F2, F5
* 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 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.
F2 Shares sold pursuant to a 10b5-1 plan dated August 14, 2024.
F3 Price reported is a weighted-average sales price. The shares were sold at prices ranging from $153.34 to $154.32. 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.
F4 Price reported is a weighted-average sales price. The shares were sold at prices ranging from $153.34 to $155.29. 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.
F5 Price reported is a weighted-average sales price. The shares were sold at prices ranging from $155.36 to $155.96. 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.