John G. Saia

Companies

• Guardant HealthGeneral counsel Mar 3, 2023 to now¹
• Guardant HealthOfficer May 15, 2020 to Dec 5, 2022²
• AcelRx Pharmaceuticals (United States)General counsel Apr 18, 2018 to Apr 18, 2018³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Guardant Health GH38,991 shares⁴$6.2M at $159.04Aug 10, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 10, 2026Gift 800 shares of Guardant Health⁴
• Jul 1, 2026Shares withheld for tax 3,707 shares at $170.77 of Guardant Health⁵
• Jul 1, 2026Exercised options 1,497 shares of Guardant Health⁵
• Jul 1, 2026Exercised options 2,925 shares of Guardant Health⁵
• Jul 1, 2026Exercised options 1,667 shares of Guardant Health⁵
• Jul 1, 2026Exercised options 974 shares of Guardant Health⁵
• Jun 15, 2026Shares withheld for tax 535 shares at $129.82 of Guardant Health⁶
• Jun 15, 2026Exercised options 1,020 shares of Guardant Health⁶
• May 27, 2026Sold 6 shares at $126.08 of Guardant Health⁷
• May 27, 2026Sold 9,994 shares at $125.08 of Guardant Health⁷
• May 20, 2026Sold 7,181 shares at $107.23 of Guardant Health⁸
• May 20, 2026Sold 7,187 shares at $106.71 of Guardant Health⁸
• May 20, 2026Sold 5,632 shares at $105.34 of Guardant Health⁸
• Apr 15, 2026Shares withheld for tax 3,970 shares at $84.86 of Guardant Health⁹
• Apr 15, 2026Exercised options 7,569 shares of Guardant Health⁹
• Apr 1, 2026Shares withheld for tax 6,013 shares at $91.15 of Guardant Health¹⁰
• Apr 1, 2026Exercised options 5,895 shares of Guardant Health¹⁰
• Apr 1, 2026Exercised options 2,925 shares of Guardant Health¹⁰
• Apr 1, 2026Exercised options 1,667 shares of Guardant Health¹⁰
• Apr 1, 2026Exercised options 974 shares of Guardant Health¹⁰
• Mar 15, 2026Shares withheld for tax 4,622 shares at $85.49 of Guardant Health¹¹
• Mar 15, 2026Exercised options 1,019 shares of Guardant Health¹¹
• Mar 15, 2026Exercised options 7,792 shares of Guardant Health¹¹
• Jan 1, 2026Shares withheld for tax 9,989 shares at $102.14 of Guardant Health¹²
• Jan 1, 2026Exercised options 2,925 shares of Guardant Health¹²