Guardant Health Director Tariq Musa Exercises RSUs, Sells Shares

What Happened

• Tariq Musa, a director of Guardant Health (GH), had 250 restricted stock units (RSUs) convert into 250 common shares (recorded as an exercise/conversion of a derivative, code M) on 2026-08-15 at $0.00 per share, and the filing also records a corresponding derivative disposition of 250 shares the same day (both at $0). He then sold 116 shares in an open-market transaction on 2026-08-17 at $156.45 per share, generating $18,148 in proceeds.
• The RSU conversion reflects compensation vesting/settlement mechanics rather than a market purchase; the subsequent open‑market sale reduces his holdings and produced the cash proceeds noted above.

Key Details

• Transaction dates and prices:
  • 2026-08-15: Converted 250 RSUs to 250 shares (M) at $0.00 (acquired) and a matching derivative disposition of 250 shares at $0.00.
  • 2026-08-17: Sold 116 shares (S) at $156.45, proceeds $18,148.
• Shares owned after transaction: Not specified in this Form 4 filing.
• Footnotes:
  • F1: The RSU award (granted 2023-03-06) vests over four years (25% on 2024-03-15, then monthly over the next three years).
  • F2: Not applicable for Restricted Stock Units.
• Filing timeliness: Form 4 was filed on 2026-08-18 and appears to have been submitted promptly after the reported transactions.

Context

• The M codes indicate conversion/exercise of derivatives (here, RSUs converting into shares). Such conversions are part of compensation vesting and are different from a cash purchase signal. The separate sale of 116 shares was an open‑market transaction that produced about $18k in proceeds.