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Saia John G.
Chief Legal Officer
Mr. Saia has served as our Chief Legal Officer and Corporate Secretary since April 2022, and prior to that as our Senior Vice President, General Counsel and Corporate Secretary from May 2020 to April 2022. Prior to joining Guardant Health, he served as Senior Vice President, General Counsel and Corporate Secretary of WageWorks, Inc., an administrator of consumer-directed benefits, from January 2019 until its acquisition by HealthEquity, Inc. in August 2019, and as General Counsel and Corporate Secretary for AcelRx Pharmaceuticals, Inc., a specialty pharmaceutical company, from April 2018 to January 2019. Mr. Saia led legal and compliance activities worldwide for both WageWorks and AcelRx. Prior to that, he…
Biography from the company’s latest DEF 14A proxy statement
GH price and prints
Full GH chartGuardant Health, Inc. 6 open-market prints by this insider, 11/7/2025 – 5/27/2026. Triangles mark only their Form 4 purchases and sales.
GH trades
| Date | Form 4 | Ticker | Side | Shares | Value | 90d | 180d |
|---|---|---|---|---|---|---|---|
| 5/27/2026 | Form 410b5-1 | Guardant Health, Inc · Services-Medical LaboratoriesIndustryServices-Medical LaboratoriesMkt cap (est.)$60.10BPrice$179.3852w high$183.1052w low$57.67 | SELL | 9,994 | $1.25M | −29.3% | +4.62%hist |
| 5/27/2026 | Form 410b5-1 | Guardant Health, Inc · Services-Medical LaboratoriesIndustryServices-Medical LaboratoriesMkt cap (est.)$60.10BPrice$179.3852w high$183.1052w low$57.67 | SELL | 6 | $756.48 | −29.3% | +4.62%hist |
| 5/20/2026 | Form 410b5-1 | Guardant Health, Inc · Services-Medical LaboratoriesIndustryServices-Medical LaboratoriesMkt cap (est.)$60.10BPrice$179.3852w high$183.1052w low$57.67 | SELL | 7,181 | $770.0K | −39.3% | +4.62%hist |
| 5/20/2026 | Form 410b5-1 | Guardant Health, Inc · Services-Medical LaboratoriesIndustryServices-Medical LaboratoriesMkt cap (est.)$60.10BPrice$179.3852w high$183.1052w low$57.67 | SELL | 5,632 | $593.3K | −39.3% | +4.62%hist |
| 5/20/2026 | Form 410b5-1 | Guardant Health, Inc · Services-Medical LaboratoriesIndustryServices-Medical LaboratoriesMkt cap (est.)$60.10BPrice$179.3852w high$183.1052w low$57.67 | SELL | 7,187 | $766.9K | −39.3% | +4.62%hist |
| 11/7/2025 | Guardant Health, Inc · Services-Medical LaboratoriesIndustryServices-Medical LaboratoriesMkt cap (est.)$60.10BPrice$179.3852w high$183.1052w low$57.67 | SELL | 8,996 | $865.9K | −1.70% | +4.62% |
Chart uses split-adjusted closes from the first print through the latest available bar. Returns use the last close on or before the trade date and the first close on or after 90 and 180 calendar days. Sales are signed so a declining price is a positive result for the seller. Not investment advice.