• Guardant Health director Ian T. Clark reported selling 6,876 shares of common stock on May 20, 2026 at a weighted average price of $106.9.
• Holdings fell to 2,975 shares, held indirectly through The Thornton-Clark Family Trust.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Guardant Health Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001336504-26-000002), on May 22, 2026, and is solely responsible for the information contained therein.