| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Acocella Kerry | General Counsel and Secretary | C/O DATADOG, INC., 620 8TH AVENUE, 45TH FLOOR, NEW YORK | /s/ Kerry Acocella | 04 Dec 2025 | 0001903975 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DDOG | Class A Common Stock | Sale | -$796K | -5.02K | -5.37% | $158.60 | 88.4K | 02 Dec 2025 | Direct | F1 |
| 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. |