SentinelOne, Inc.: president and ceo Tomer Weingarten sold 527,368 shares

What happened

• Tomer Weingarten, president and CEO and a director, reported multiple transactions on Oct 5, 2026. The filing shows he sold 527,368 shares in the open market at a weighted average price of $25.26 for $13,323,531. The filing also shows a conversion/acquisition of 500,000 shares at $9.74 for $4,870,000 and related derivative exercises/conversions totaling 500,000 shares reported at $0 (derivative transactions).

Key details

• Transaction date: Oct 5, 2026; Form 4 filed Oct 6, 2026.
• Sale: 527,368 shares sold in multiple transactions at a weighted average price of $25.26 (range $24.95 to $25.51), total proceeds $13,323,531 (footnote F3).
• Acquisition/conversion: 500,000 shares acquired upon conversion of Class B common stock to Class A common stock at $9.74, total $4,870,000 (footnote F1).
• Derivative activity: the filing reports exercise/conversion entries for 500,000 shares at $0 (reported as derivative transactions).
• Shares owned after the transaction: not stated in the information provided.
• Relevant footnotes: transactions were effected pursuant to a Rule 10b5-1 trading plan adopted Jul 2, 2026 (F2); some shares are subject to forfeiture if vesting conditions are not met (F4); the related stock option was fully vested and exercisable as of Apr 24, 2026 (F5); Class B conversion mechanics are described (F6, F7); some shares are held by an irrevocable trust and the reporting person disclaims beneficial ownership except to his pecuniary interest (F8).

Why it may matter

• The filing shows exercises/conversions and open-market sales on the same date, and it states the sales were made under a Rule 10b5-1 plan. The filing does not state whether the sales were part of a cashless exercise.
• A filing does not show why the insider traded or why the company acted.