Guardant Health (GH)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-17 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Guardant Health, Inc. (GH) CIK: 0001576280 --- Reporting Owner --- Name: Krognes Steve E. CIK: 0001666236 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-17 | Code: M (Exercise of derivative) Shares: +4,203 | Price: $0.00 Shares Owned After: 14,425 | Ownership: D (Direct) --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-06-17 | Code: M (Exercise of derivative) Shares: -4,203 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F1] The restricted stock unit award vested in full on the date of the 2026 Annual Meeting of Stockholders which was held on June 17, 2026. [F2] Not applicable for Restricted Stock Units. [Transaction #2] Security: Restricted Stock Units Date: 2026-06-17 | Code: A (Grant or award) Shares: +2,711 | Price: $0.00 Shares Owned After: 2,711 | Ownership: D (Direct) Footnotes: [F3] The restricted stock unit award vests in full on the one-year anniversary of the grant date, June 17, 2026, or the date of the Company's next annual meeting of stockholders, whichever is earlier. [F2] Not applicable for Restricted Stock Units. --- Footnotes (Complete Index) --- F1: The restricted stock unit award vested in full on the date of the 2026 Annual Meeting of Stockholders which was held on June 17, 2026. F2: Not applicable for Restricted Stock Units. F3: The restricted stock unit award vests in full on the one-year anniversary of the grant date, June 17, 2026, or the date of the Company's next annual meeting of stockholders, whichever is earlier. --- Signature --- /s/ /s/ John Saia, as attorney-in-fact for Steve Krognes (2026-06-22)