Form 4 Filing by Tariq Musa

Tariq Musa, a director at Guardant Health, Inc., reported a transaction on March 15, 2026. The transaction involved the acquisition of 249 shares of Common Stock with a reported price of $0.00. Following this transaction, Mr. Musa directly owns 8,742 shares of Common Stock. Additionally, there was a disposition of 249 Restricted Stock Units (RSUs), which are convertible into Common Stock. These RSUs were granted on March 6, 2023, and vest over a four-year period, with 25% vesting on the one-year anniversary of March 15, 2023, and the remaining 75% vesting monthly over the subsequent three years. After the RSU transaction, Mr. Musa directly owns 2,999 RSUs. The filing was signed by John G. Saia as attorney-in-fact for Tariq Musa on March 17, 2026.