SentinelOne, Inc. — Director's Dealing 2025

Dec 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SentinelOne, Inc. (S)
CIK: 0001583708
Period of Report: 2025-12-15

Reporting Person: Barrenechea Mark J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-15	Class A Common Stock	A	1779	—	Acquired	26599	Direct

Footnotes

F1: Represents an award of deferred restricted stock units (DSUs) granted on December 15, 2025, which shall vest on a time-based vesting schedule but for which settlement has been deferred pursuant to the Reporting Person's election under the Issuer's Deferred Compensation Program (the "Program"). Each DSU represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to satisfaction of the time-based vesting conditions. The DSUs shall time-vest as to 25% of the total shares on each of September 15, December 15, and March 15, and with the final quarterly installment vesting on the earliest of (i) the date of the next annual meeting of the Issuer's stockholders, (ii) the date immediately prior to the next annual meeting of the Issuer's stockholders if the applicable non-employee director's service as a director ends at such meeting due to the Reporting Person's failure to be re-elected or the Reporting Person not standing for re-election, and

F2: [cont'd from Footnote 1] (iii) December 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date, and with deferred settlement occurring subject to the terms of the Program.

F3: Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.