Guardant Health (GH)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-26 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Guardant Health, Inc. (GH) CIK: 0001576280 --- Reporting Owner --- Name: Eltoukhy Helmy CIK: 0001752968 Role: Director, Officer (Co-Chief Executive Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-26 | Code: J (Other acquisition/disposition) Shares: -25,000 | Price: $0.00 Shares Owned After: 1,970,934 | Ownership: I (Indirect) | Nature: Shares held by Helmy A. Eltoukhy Revocable Trust Footnotes: [F1] Reflects changes in form of ownership from Helmy A. Eltoukhy Revocable Trust to The Eltoukhy Foundation. [Transaction #2] Security: Common Stock Date: 2026-08-26 | Code: J (Other acquisition/disposition) Shares: +25,000 | Price: $0.00 Shares Owned After: 60,000 | Ownership: I (Indirect) | Nature: Shares held by The Eltoukhy Foundation Footnotes: [F1] Reflects changes in form of ownership from Helmy A. Eltoukhy Revocable Trust to The Eltoukhy Foundation. [Transaction #3] Security: Common Stock Date: 2026-08-26 | Code: G (Gift) Shares: -30,000 | Price: $0.00 Shares Owned After: 1,940,934 | Ownership: I (Indirect) | Nature: Shares held by Helmy A. Eltoukhy Revocable Trust Footnotes: [F2] Reflects a gift of shares to a Donor Advisory Fund at Vanguard. --- Footnotes (Complete Index) --- F1: Reflects changes in form of ownership from Helmy A. Eltoukhy Revocable Trust to The Eltoukhy Foundation. F2: Reflects a gift of shares to a Donor Advisory Fund at Vanguard. --- Signature --- /s/ /s/ John G. Saia, as attorney-in-fact for Helmy Eltoukhy (2026-08-27)