Director Roberto Mignone filed a Form 4 with the SEC on August 24, 2026, disclosing the vesting of restricted stock units in Guardant Health, Inc. (NASDAQ:GH) on August 21, 2026.

Key Highlights

  • Reporting person: Roberto Mignone, listed as a Director of Guardant Health, Inc.
  • Transaction type: Code M conversion of 264 restricted stock units into 264 shares of common stock at a price of $0.
  • Shares acquired: 264 shares of common stock acquired on August 21, 2026.
  • Post-transaction ownership: Mignone directly holds 10,010 shares of common stock following the transaction.
  • Remaining RSUs: 6,864 restricted stock units remain beneficially owned directly after the reported transaction.
  • Vesting schedule: The underlying RSU award, granted November 8, 2024, vests over four years, with 25% vested on October 21, 2025 and the remaining 75% vesting monthly over the following three years.

RSU Vesting Details for Guardant Health Director Roberto Mignone

According to the filing, Roberto Mignone, a Director at Guardant Health, Inc., reported a transaction dated August 21, 2026 under Table I and Table II of the Form 4. The transaction involved the conversion of 264 restricted stock units (RSUs) into 264 shares of common stock, recorded under transaction code M, at a price of $0 per share. Following this transaction, the filing discloses that Mignone directly holds 10,010 shares of common stock.

The filing notes that the RSU award was originally granted on November 8, 2024, and vests over a four-year period. As described in the explanatory footnote, "25% of the shares subject to such award vested on October 21, 2025 and the remaining 75% vests monthly for the three-year period thereafter." After the reported conversion, the filing states that 6,864 RSUs remain directly held by Mignone.

The Form 4 was signed by John G. Saia as attorney-in-fact for Roberto A. Mignone, and was filed on August 24, 2026. The filing was made pursuant to Section 16(a) of the Securities Exchange Act of 1934 and indicates this was filed by one reporting person.

What Was Disclosed

The filing disclosed the vesting of 264 RSUs into common stock for Guardant Health Director Roberto Mignone on August 21, 2026, leaving him with 10,010 directly held common shares and 6,864 remaining RSUs following the transaction.