Datadog, Inc. 4

Sean Michael Walters, Datadog’s Chief Revenue Officer, sold 11,876 shares of Datadog Class A Common Stock on June 11, 2026 for about $2.7 million under a 10b5-1 plan.

On June 11, 2026, Datadog, Inc. Chief Revenue Officer Sean Michael Walters reported a series of open market sales of Class A Common Stock under a Rule 10b5-1 trading plan dated December 12, 2025. Across nine transactions executed the same day at weighted-average prices ranging from approximately $225.18 to $233.91 per share, Walters sold a total of 11,876 shares for aggregate proceeds of roughly $2.7 million. Following these discretionary sales, he continued to hold 258,420 shares directly, and an additional 8 shares were reported as indirectly owned through his son, with the footnotes noting that the exact price breakdowns within each weighted-average range are available upon request from the reporting person.

Filing Facts

CIK

1561550

Ticker

DDOG

Form

4

Source Type

sec

Accession

0001561550-26-000202

Alert Tier

9