Le-Quoc Alexis 4

4 · Datadog, Inc. · Filed Feb 25, 2026

Insider Transaction Report

Form 4

Period: 2026-02-23

Datadog, Inc.DDOG

Le-Quoc Alexis

DirectorChief Technology Officer

Transactions

Conversion
Class A Common Stock
[F1]
2026-02-23+21,612→ 512,410 total
Sale
Class A Common Stock
[F2][F3]
2026-02-23$102.09/sh−7,712$787,325→ 504,698 total
Sale
Class A Common Stock
[F2][F4]
2026-02-23$103.10/sh−1,300$134,030→ 503,398 total
Sale
Class A Common Stock
[F2][F5]
2026-02-23$104.02/sh−2,800$291,265→ 500,598 total
Sale
Class A Common Stock
[F2][F6]
2026-02-23$105.23/sh−800$84,188→ 499,798 total
Sale
Class A Common Stock
[F2][F7]
2026-02-23$106.29/sh−3,900$414,522→ 495,898 total
Sale
Class A Common Stock
[F2][F8]
2026-02-23$107.34/sh−1,100$118,070→ 494,798 total
Sale
Class A Common Stock
[F2][F9]
2026-02-23$108.44/sh−1,600$173,501→ 493,198 total
Sale
Class A Common Stock
[F2][F10]
2026-02-23$109.42/sh−1,600$175,069→ 491,598 total
Sale
Class A Common Stock
[F2][F11]
2026-02-23$110.42/sh−400$44,170→ 491,198 total
Sale
Class A Common Stock
[F2][F12]
2026-02-23$111.30/sh−400$44,520→ 490,798 total
Conversion
Class B Common Stock
[F1]
2026-02-23−21,612→ 2,563,814 total
→ Class A Common Stock (21,612 underlying)
Exercise/Conversion
Stock Option (Right to Buy)
[F14]
2026-02-23−112,500→ 262,500 total
Exercise: $10.74Exp: 2029-07-19→ Class B Common Stock (112,500 underlying)
Exercise/Conversion
Class B Common Stock
[F1]
2026-02-23$10.74/sh+112,500$1,208,250→ 2,676,314 total
→ Class A Common Stock (112,500 underlying)

Holdings

Class A Common Stock
[F13]
(indirect: By Trust)
169
Class B Common Stock
[F1][F13]
(indirect: By Trust)
→ Class A Common Stock (6,203,835 underlying)
6,203,835

Footnotes (14)

[F1]Each 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.
[F10]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $108.98 to $109.9. 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.
[F11]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $110.05 to $110.97. 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.
[F12]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $111.06 to $111.45. 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.
[F13]Shares are held by the Alexis Le-Quoc Revocable Trust.
[F14]Option is fully vested and exercisable.
[F2]Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.
[F3]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $101.58 to $102.56. 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.
[F4]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $102.58 to $103.57. 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.
[F5]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $103.58 to $104.52. 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.
[F6]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $104.83 to $105.76. 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.
[F7]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $105.87 to $106.85. 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.
[F8]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $106.88 to $107.84. 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.
[F9]Price reported is a weighted-average sales price. The shares were sold at prices ranging from $107.98 to $108.97. 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/ Kerry Acocella, Attorney-in-Fact|2026-02-25

Documents

1 file

4
wk-form4_1772053689.xmlPrimary
FORM 4