SentinelOne's Robin Tomasello sells 2,986 shares

One sale funded tax withholding tied to Restricted Stock Unit vesting; the other was made under a Rule 10b5-1 plan adopted June 9, 2026.

Available on EDGAR 11/10/2026 - 07:17 PM EST Accepted by SEC EDGAR 11/10/2026 - 07:16 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

SentinelOne, Inc. Chief Accounting Officer Robin Tomasello reported two sales of Class A common stock: 2,986 shares at $22.0900 per share on November 9, 2026, under a Rule 10b5-1 trading plan adopted June 9, 2026, and 5,293 shares at $21.9102 per share on November 6, 2026. The November 6 sale was issuer-mandated to cover tax withholding tied to the vesting and settlement of Restricted Stock Units; the footnote says it was not discretionary.

Insider Trade Summary 10b5-1

Net Seller: 8,279 shares

Net Sell 2 txns

Insider TOMASELLO ROBIN

Role Chief Accounting Officer

Sold 8,279 shs ($182K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F3, F2	2,986	$22.09	$66K
Sale	Class A Common Stock F1, F2	5,293	$21.9102	$116K

Holdings After Transaction: Class A Common Stock — 396,833 shares (Direct)

Footnotes (3)

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.
3. F3. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2026.

Key Figures

Shares sold: 2,986 shares Sale price per share: $22.0900 per share Shares sold: 5,293 shares +1 more

4 metrics

Shares sold 2,986 shares November 9, 2026

Sale price per share $22.0900 per share Sale reported November 9, 2026

Shares sold 5,293 shares November 6, 2026

Sale price per share $21.9102 per share Sale reported November 6, 2026

Key Terms

Rule 10b5-1 trading plan, Restricted Stock Units, sell to cover

3 terms

Rule 10b5-1 trading plan regulatory

"effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Restricted Stock Units financial

"vesting and settlement of Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

sell to cover financial

"funded by a "sell to cover" transaction"

Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.

FAQ

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

How many SentinelOne (S) shares did Robin Tomasello sell, and at what prices?

Robin Tomasello reported selling 2,986 shares at $22.0900 per share on November 9, 2026, and 5,293 shares at $21.9102 per share on November 6, 2026.

Why was Robin Tomasello's November 6 SentinelOne sale reported as a sell-to-cover?

The November 6 sale was issuer-mandated to fund tax withholding obligations connected with vesting and settlement of Restricted Stock Units. SentinelOne's equity incentive plan requires award recipients' tax withholding obligations to be funded through a sell to cover transaction.

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

Form 4 Insider Transactions: What Each Field Means →

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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).

X

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 CALIFORNIA 94041

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	11/06/2026		S(1)		5,293	D	$21.9102	399,819(2)	D
Class A Common Stock	11/09/2026		S(3)		2,986	D	$22.09	396,833(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.

3. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2026.

Remarks:

	/s/ Keenan Conder, Attorney-in-Fact	11/09/2026
	** 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.
* Form 4: SEC 1474 (03-26)