SEC Form 4 · accession 0001561550-26-000310
Datadog, Inc. · DDOG
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Sean Michael Walters
Officer — Chief Revenue Officer
Period of report
Sep 11, 2026
Accepted (ET)
Sep 15, 2026 · 4:38 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001561550
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF2 | Sep 11, 2026 | S | 800 | $219.6846 | D | 244,045 | D | |
| Class A Common StockF3 | Sep 11, 2026 | S | 5,824 | $220.6722 | D | 238,221 | D | |
| Class A Common StockF4 | Sep 11, 2026 | S | 4,286 | $221.4015 | D | 233,935 | D | |
| Class A Common StockF5 | Sep 11, 2026 | S | 500 | $222.3125 | D | 233,435 | D | |
| Class A Common StockF6 | Sep 11, 2026 | S | 300 | $224.4533 | D | 233,135 | D | |
| Class A Common Stock | holding | — | — | — | 8 | I | By Son |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Shares sold pursuant to a 10b5-1 plan dated December 12, 2025.
- F2Price reported is a weighted-average sales price. The shares were sold at prices ranging from $219.13 to $220.08. 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.
- F3Price reported is a weighted-average sales price. The shares were sold at prices ranging from $220.18 to $221.17. 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.
- F4Price reported is a weighted-average sales price. The shares were sold at prices ranging from $221.19 to $221.89. 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.
- F5Price reported is a weighted-average sales price. The shares were sold at prices ranging from $222.20 to $222.45. 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.
- F6Price reported is a weighted-average sales price. The shares were sold at prices ranging from $224.13 to $224.86. 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.