SentinelOne (S) Chief Accounting Officer Robin Tomasello Sells Shares

What Happened Robin Tomasello, Chief Accounting Officer of SentinelOne (S), reported two dispositions on Sept 8, 2026: 7,235 shares sold at $19.44 each for $140,644, and 14,205 shares sold at $19.79 each for $281,117 — a total of 21,440 shares disposed for roughly $421,761. These were sales (not purchases) and therefore do not signal an insider purchase.

Key Details

• Transaction date: 2026-09-08; Form 4 filed 2026-09-09 (timely filing).
• Reported prices: $19.44 (7,235 sh = $140,644) and $19.79 (14,205 sh = $281,117); total ≈ $421,761.
• One reported price is a weighted average; the filing notes sales occurred across prices ranging $19.11–$19.71 and the reporting person can provide the per-price breakdown on request.
• These shares may include awards subject to forfeiture if vesting conditions are unmet.
• The sale was an issuer-mandated "sell to cover" to satisfy tax withholding on RSU vesting and is not a discretionary trade by the reporting person.
• The transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2026.
• Shares owned after the transactions are not specified in the provided filing excerpt.

Context Because the filing indicates this was a mandatory sell-to-cover tied to RSU settlement and executed under a pre-established 10b5-1 plan, the trades are generally considered routine administrative transactions rather than discretionary insider stock sales. Purchases typically carry more informational weight for investors; these sales appear driven by tax withholding and vesting mechanics.