SentinelOne executive reports tax-withholding sale of 8,509 shares

SentinelOne, Inc. reported an insider transaction by its Chief Accounting Officer on 12/08/2025.

Accepted by SEC EDGAR 12/10/2025 - 05:14 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

SentinelOne, Inc. reported an insider transaction by its Chief Accounting Officer on 12/08/2025. The officer sold 8,509 shares of Class A common stock at $14.58 per share. The company explains this was an issuer-mandated “sell to cover” transaction to satisfy tax withholding obligations tied to the vesting and settlement of restricted stock units, rather than a discretionary sale. Following the transaction, the officer beneficially owns 285,551 shares, and some of these shares remain subject to forfeiture if vesting conditions are not met.

Insider Trade Summary

Net Seller: 8,509 shares

Net Sell 1 txn

Insider TOMASELLO ROBIN

Role Chief Accounting Officer

Sold 8,509 shs ($124K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	8,509	$14.58	$124K

Holdings After Transaction: Class A Common Stock — 285,551 shares (Direct)

Footnotes (2)

1. F1. The sale reported on this Form 4 represents an Issuer mandated sale by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units, and it does not represent a discretionary trade by the Reporting Person. Pursuant to the Issuer's equity incentive plan, an award recipient's tax withholding obligations must be funded by a "sell to cover" transaction.
2. F2. Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction was reported for SentinelOne (S)?

The Chief Accounting Officer of SentinelOne, Inc. reported selling 8,509 shares of Class A common stock on 12/08/2025 at a price of $14.58 per share.

Why did SentinelOnes officer sell 8,509 shares?

The sale was an issuer-mandated sell to cover transaction to fund tax withholding obligations arising from the vesting and settlement of restricted stock units, not a discretionary trade.

How many SentinelOne (S) shares does the reporting person still own?

After the reported sale, the officer beneficially owns 285,551 shares of SentinelOne Class A common stock.

Were any of the remaining SentinelOne shares subject to vesting conditions?

Yes. The filing notes that certain of the shares are subject to forfeiture if the underlying vesting conditions are not satisfied.

What role does the reporting person hold at SentinelOne (S)?

The reporting person is an officer of SentinelOne, serving as the companys Chief Accounting Officer.

Was this SentinelOne insider transaction filed individually or jointly?

The Form 4 was filed by one reporting person, not as part of a joint or group filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

TOMASELLO ROBIN

(Last) (First) (Middle)

C/O SENTINELONE, INC.

444 CASTRO STREET, SUITE 400

(Street)

MOUNTAIN VIEW CA 94041

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SentinelOne, Inc. [ S ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/08/2025

4. If Amendment, Date of 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

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	12/08/2025		S(1)		8,509	D	$14.58	285,551(2)	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. The sale reported on this Form 4 represents an Issuer mandated sale by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units, and it does not represent a discretionary trade by the Reporting Person. Pursuant to the Issuer's equity incentive plan, an award recipient's tax withholding obligations must be funded by a "sell to cover" transaction.

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

Remarks:

	/s/ Keenan Conder, Attorney-in-Fact	12/10/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.