| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Galloreese David | Chief People Officer | C/O DATADOG, INC., 620 8TH AVENUE, 45TH FLOOR, NEW YORK | /s/ Kerry Acocella, Attorney-in-Fact | 04 Sep 2025 | 0001757760 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DDOG | Class A Common Stock | Sale | -$345K | -2.58K | -3.12% | $133.85 | 79.9K | 02 Sep 2025 | Direct | F1, F2 |
| 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 | 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. |