TOMASELLO ROBIN 4

4 · SentinelOne, Inc. · Filed Feb 6, 2026

AI-generated summary of this filing

Updated Feb 7, 2026

SentinelOne (S) Chief Accounting Officer Robin Tomasello Sells Shares

What Happened

Robin Tomasello, Chief Accounting Officer of SentinelOne (S), disposed of 2,975 shares of the company's Class A common stock on 2026-02-06 at $13.15 per share, for a total of $39,121.
The sale was an issuer-mandated "sell-to-cover" to satisfy tax withholding obligations tied to the vesting/settlement of Restricted Stock Units (RSUs), not a discretionary market sell.

Key Details

Transaction date and price: 2026-02-06 — 2,975 shares sold at $13.15/share (total ≈ $39,121).
Shares owned after transaction: not specified in the Form 4 filing.
Notable footnotes:
- F1: Sale was required by the issuer to cover tax withholding on RSU vesting (sell-to-cover), not a voluntary trade.
- F2: Filing notes 1,374 shares were acquired via the Employee Stock Purchase Plan (ESPP) and are exempt under Rule 16a-3.
- F3: Some shares remain subject to forfeiture if vesting conditions are unmet.
Filing timeliness: report filed for the period 2026-02-06; no late filing indicated.

Context

Sell-to-cover transactions are routine steps to satisfy tax obligations when restricted stock or RSUs vest and generally do not signal a change in an insider’s view of the company.
For retail investors, purchases or voluntary insider buys tend to be more informative about insider sentiment than mandatory tax-withholding sales.

Form 4

Period: 2026-02-06

Chief Accounting Officer

Transactions

Sale
Class A Common Stock
[F1][F2][F3]
2026-02-06$13.15/sh−2,975$39,121→ 411,034 total

Footnotes (3)

[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.
[F2]Includes 1,374 shares of the Issuer's Class A Common Stock acquired by the Reporting Person in one or more transactions with the Issuer pursuant to its Employee Stock Purchase Plan, which transactions are exempt pursuant to Rules 16a3(f)(1)(i)(B) and 16b3(c).
[F3]Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.

Signature

/s/ Keenan Conder, Attorney-in-Fact|2026-02-06

1 file