SEC Form 4 · accession 0001561550-26-000316
Datadog, Inc. · DDOG
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
David M Obstler
Officer — Chief Financial Officer
Period of report
Sep 14, 2026
Accepted (ET)
Sep 16, 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 14, 2026 | S | 2,656 | $221.2371 | D | 415,411 | D | |
| Class A Common StockF3 | Sep 14, 2026 | S | 5,424 | $222.1654 | D | 409,987 | D | |
| Class A Common StockF4 | Sep 14, 2026 | S | 2,452 | $223.1165 | D | 407,535 | D | |
| Class A Common StockF5 | Sep 14, 2026 | S | 1,801 | $224.3436 | D | 405,734 | D | |
| Class A Common StockF6 | Sep 14, 2026 | S | 3,940 | $225.1327 | D | 401,794 | D | |
| Class A Common StockF7 | Sep 14, 2026 | S | 629 | $226.1915 | D | 401,165 | D | |
| Class A Common StockF8 | Sep 14, 2026 | S | 562 | $227.716 | D | 400,603 | D | |
| Class A Common StockF9 | Sep 14, 2026 | S | 1,189 | $228.5826 | D | 399,414 | D | |
| Class A Common StockF10 | Sep 14, 2026 | S | 9,623 | $229.9206 | D | 389,791 | D | |
| Class A Common StockF11 | Sep 14, 2026 | S | 5,625 | $230.5076 | D | 384,166 | D | |
| Class A Common StockF12 | Sep 14, 2026 | S | 2,414 | $231.531 | D | 381,752 | D | |
| Class A Common StockF13 | Sep 14, 2026 | S | 3,057 | $232.7071 | D | 378,695 | D | |
| Class A Common StockF14 | Sep 14, 2026 | S | 628 | $233.30 | D | 378,067 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Shares sold pursuant to a 10b5-1 plan dated June 13, 2026.
- F10Price reported is a weighted-average sales price. The shares were sold at prices ranging from $229.13 to $230.12. 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.
- F11Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.13 to $231.11. 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.
- F12Price reported is a weighted-average sales price. The shares were sold at prices ranging from $231.13 to $232.12. 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.
- F13Price reported is a weighted-average sales price. The shares were sold at prices ranging from $232.13 to $233.12. 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.
- F14Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.13 to $233.49. 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.
- F2Price reported is a weighted-average sales price. The shares were sold at prices ranging from $220.67 to $221.57. 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 $221.68 to $222.65. 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 $222.70 to $223.60. 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 $223.82 to $224.81. 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 $224.82 to $225.78. 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.
- F7Price reported is a weighted-average sales price. The shares were sold at prices ranging from $225.96 to $226.54. 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.
- F8Price reported is a weighted-average sales price. The shares were sold at prices ranging from $227.095 to $228.07. 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.
- F9Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.13 to $229.12. 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.
Remarks
Due to the 30 line limitation in Table I, this report is being filed across two forms. This is the first of two filings.