Guardant Health: CEO Eltoukhy Helmy exercised 36,530 shares

What happened

• Eltoukhy Helmy, CEO, exercised or converted a total of 36,530 shares (2,817 on Sep 30, 2026; 23,997 and 9,716 on Oct 1, 2026) at $0.00 per share.
• The filing shows 1,428 shares were disposed on Sep 30, 2026 at $178.36 for $254,698 and 17,087 shares were disposed on Oct 1, 2026 at $174.75 for $2,985,953; the total withheld for taxes was $3,240,651.
• The Form 4 also lists corresponding derivative conversion entries showing the same share amounts at $0.00.

Key details

• Transaction dates and prices: Sep 30, 2026 — exercised 2,817 shares @ $0.00 (acquired) and 1,428 shares withheld @ $178.36 for $254,698; Oct 1, 2026 — exercised 23,997 and 9,716 shares @ $0.00 (acquired) and 17,087 shares withheld @ $174.75 for $2,985,953.
• Shares owned after the transaction: not reported in the filing.
• Relevant footnotes: F1 — the company retained shares to meet the award-holder's tax withholding obligations and the amount retained was not in excess of the tax liability. F2, F4, F5 — the filing identifies the awards as restricted stock unit grants with vesting schedules (grants dated Mar 17, 2026; Mar 18, 2024; Mar 12, 2025) that vest in installments per the footnotes. F3 — not applicable for restricted stock units.
• Filing date and timeliness: Form 4 filed Oct 2, 2026; the filing does not indicate it was late.

Why it may matter

• The filing shows conversion of restricted stock units with shares withheld by the company to satisfy tax withholding (a cashless net settlement rather than an open-market sale of all exercised shares).
• The filing does not show why the insider traded or why the company acted.