Datadog (DDOG)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-15 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Datadog, Inc. (DDOG) CIK: 0001561550 --- Reporting Owner --- Name: Richardson Julie CIK: 0001466857 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-06-15 | Code: A (Grant or award) Shares: +1,072 | Price: $0.00 Shares Owned After: 3,178 | Ownership: D (Direct) Footnotes: [F1] Represents the number of shares underlying Restricted Stock Units ("RSUs") granted pursuant to the Issuer's non-employee director compensation policy. Each RSU represents a contingent right to receive one share of Issuer's Class A common stock. The RSUs vest on the earlier of (A) the Company's next annual meeting of stockholders and (B) June 15, 2027, in each case, subject to the Reporting Person's continuous service to the Issuer through the vesting date. --- Footnotes (Complete Index) --- F1: Represents the number of shares underlying Restricted Stock Units ("RSUs") granted pursuant to the Issuer's non-employee director compensation policy. Each RSU represents a contingent right to receive one share of Issuer's Class A common stock. The RSUs vest on the earlier of (A) the Company's next annual meeting of stockholders and (B) June 15, 2027, in each case, subject to the Reporting Person's continuous service to the Issuer through the vesting date. --- Signature --- /s/ /s/ Kerry Acocella, Attorney-in-Fact (2026-06-17)