Guardant Health Director Tariq Musa Exercises RSUs, Sells 116 Shares

What Happened

• Tariq Musa, a director of Guardant Health (GH), had 249 restricted stock units convert into common shares (reported as an exercise/conversion of a derivative) on 2026-09-15. The filing also shows a 249-share derivative disposition on 2026-09-15 and an open-market sale of 116 shares on 2026-09-16 at $175.00 per share, generating $20,300.
• The conversion (code M) shows an acquisition at $0.00 per share (typical for RSU vesting). The subsequent open-market sale (code S) is a cash sale and is often viewed as routine liquidation of vested awards rather than a fresh purchase.

Key Details

• Transaction dates and prices:
  • 2026-09-15: Conversion/exercise of derivative — 249 shares @ $0.00 (acquired).
  • 2026-09-15: Derivative disposition — 249 shares @ $0.00 (disposed) as reported.
  • 2026-09-16: Open-market sale — 116 shares @ $175.00 = $20,300 (disposed).
• Shares owned after transaction: Not disclosed in this filing.
• Footnotes:
  • F1: The underlying award is a March 6, 2023 restricted stock unit (RSU) grant that vests 25% on March 15, 2024 and the remaining 75% monthly over the next three years.
  • F2: Not applicable for RSUs.
• Filing timeliness: Report filed 2026-09-17 for transactions on 2026-09-15–09-16; this appears to be timely under Form 4 reporting rules.

Context

• These entries indicate RSU vesting (conversion into shares) and subsequent share disposals. Conversions of RSUs are not purchases — they reflect earned awards becoming stock. The open-market sale of 116 shares raised $20,300.
• The 249-share disposition reported the same day as the conversion could represent a transfer or withholding action, but the filing does not specify the reason. No 10b5-1 plan or tax-withholding code is stated.