SEC Form 4 · accession 0001466857-26-000012
Datadog, Inc. · DDOG
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Julie Richardson
Director
Period of report
Sep 4, 2026
Accepted (ET)
Sep 9, 2026 · 4:32 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 Stock | Sep 4, 2026 | C | 5,625 | $0.00 | A | 8,803 | D | |
| Class A Common StockF3 | Sep 4, 2026 | S | 5,212 | $212.2051 | D | 3,591 | D | |
| Class A Common StockF4 | Sep 4, 2026 | S | 413 | $212.8518 | D | 3,178 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy)F5 | $7.9567 | Sep 4, 2026 | M | 5,625 | D | — | Jun 12, 2029 | Class B Common Stock | 5,625 | 16,878 | D |
| Class B Common StockF1 | — | Sep 4, 2026 | M | 5,625 | A | — | — | Class A Common Stock | 5,625 | 5,625 | D |
| Class B Common StockF1 | — | Sep 4, 2026 | C | 5,625 | D | — | — | Class A Common Stock | 5,625 | 0 | D |
Explanation of responses
- F1Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon the earliest of: (i) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's amended and restated certificate of incorporation, (ii) the death of the Reporting Person in the case of shares held directly or in a trustee capacity, and (iii) the tenth anniversary of the Issuer's initial public offering of its Class A Common Stock.
- F2Shares sold pursuant to a 10b5-1 plan dated June 4, 2026.
- F3Price reported is a weighted-average sales price. The shares were sold at prices ranging from $211.54 to $212.51. 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 $212.6 to $213.04. 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.
- F5The option is fully vested and exercisable.