Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Barrenechea Mark J 2. Issuer Name and Ticker or Trading Symbol SentinelOne, Inc. [S] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O SENTINELONE, INC, 444 CASTRO STREET, SUITE 400 3. Date of Earliest Transaction (Month/Day/Year) 12/15/2025 (Street) MOUNTAIN VIEW, CA 94041 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 12/15/2025 A 1,779(1)(2) A $ 0 26,599(3) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Barrenechea Mark J C/O SENTINELONE, INC 444 CASTRO STREET, SUITE 400 MOUNTAIN VIEW, CA 94041	X

Signatures

/s/ Keenan Conder, Attorney-in-Fact		12/17/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	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
(2)	[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.
(3)	Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.

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