4Filing Date: Feb 9, 2026

Datadog (DDOG)

Statement of Changes in Beneficial Ownership

View SEC Filing
ACC: 0001561550-26-000021
Total Value$0
Trades2
Insiders1

Transaction Details

Walters Sean Michael
Chief Revenue Officer·Direct
Grant · Acquire
Class A Common Stock
Shares+121.18K
Price$0.00
Total Value$0
Shares Owned After292.83K
Transaction DateFeb 5, 2026
Footnotes ▸

On April 1, 2025, the Reporting Person was granted restricted stock units, the vesting of which was subject to both performance-based and service-based criteria ("PSUs"). The number of shares reported represents the number of PSUs that were earned as a result of the achievement of such performance criteria. Such earned PSUs will vest as to service as to 1/4 of the shares on March 1, 2026 and 1/12 of the remaining shares on each June 1, September 1, December 1 and March 1 thereafter, subject in each case to the Reporting Person remaining in Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) of the Issuer as of each such date.

Walters Sean Michael
Chief Revenue Officer·Indirect · By Son
Class A Common Stock
Shares0
Price-
Total Value$0
Shares Owned After8

Post-Transaction Holdings

Walters Sean Michael · Chief Revenue Officer
SecuritySharesChange
Class A Common Stock292.84K+121.18K (70.59%)
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-02-05 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Datadog, Inc. (DDOG) CIK: 0001561550 --- Reporting Owner --- Name: Walters Sean Michael CIK: 0001903980 Role: Officer (Chief Revenue Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-02-05 | Code: A (Grant or award) Shares: +121,178 | Price: $0.00 Shares Owned After: 292,832 | Ownership: D (Direct) Footnotes: [F1] On April 1, 2025, the Reporting Person was granted restricted stock units, the vesting of which was subject to both performance-based and service-based criteria ("PSUs"). The number of shares reported represents the number of PSUs that were earned as a result of the achievement of such performance criteria. Such earned PSUs will vest as to service as to 1/4 of the shares on March 1, 2026 and 1/12 of the remaining shares on each June 1, September 1, December 1 and March 1 thereafter, subject in each case to the Reporting Person remaining in Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) of the Issuer as of each such date. --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: On April 1, 2025, the Reporting Person was granted restricted stock units, the vesting of which was subject to both performance-based and service-based criteria ("PSUs"). The number of shares reported represents the number of PSUs that were earned as a result of the achievement of such performance criteria. Such earned PSUs will vest as to service as to 1/4 of the shares on March 1, 2026 and 1/12 of the remaining shares on each June 1, September 1, December 1 and March 1 thereafter, subject in each case to the Reporting Person remaining in Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) of the Issuer as of each such date. --- Signature --- /s/ /s/ Kerry Acocella, Attorney-in-Fact (2026-02-09)

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