Form 4 Filing for Roberto Mignone

Roberto Mignone, a director at Guardant Health, Inc., reported a disposition of 264 shares of Common Stock on December 21, 2025. The transaction code "M" indicates a grant, and the disposition code "D" suggests these shares were part of a Restricted Stock Unit (RSU) award. The RSUs were granted on November 8, 2024, and vest over a four-year period, with 25% vesting on the one-year anniversary of October 21, 2024, and the remaining 75% vesting monthly thereafter. Mignone also acquired 264 shares of Common Stock via a grant, with a post-transaction balance of 3695 shares of Common Stock and 8976 shares of RSUs. The reported transactions have a price per share of $0.0, indicating they are related to equity awards rather than open market purchases or sales.