Datadog (DDOG)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-08 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Datadog, Inc. (DDOG) CIK: 0001561550 --- Reporting Owner --- Name: Li Yanbing CIK: 0001783061 Role: Officer (Chief Product Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-05-08 | Code: S (Open market sale) Shares: -19,834 | Price: $197.35 Total Value: $3,914,281.55 Shares Owned After: 285,283 | Ownership: D (Direct) Footnotes: [F1] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $197.32 to $197.55. 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. --- Footnotes (Complete Index) --- F1: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $197.32 to $197.55. 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. --- Signature --- /s/ /s/ Kerry Acocella, Attorney-in-Fact (2026-05-12)