Updated Jul 16, 2026
Saia John G. has filed 4 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $3.38M.

John G. Saia serves as the Chief Legal Officer at Guardant Health, Inc., a company specializing in liquid-based cancer tests. He has been involved in various SEC filings related to the company, indicating his active role in corporate governance and legal matters.
| Role | Chief Legal Officer |
|---|---|
| Notability | 30/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-02 | GH | Guardant Health, Inc. | F — Tax withholding / forfeiture | 3.7K | $170.77 | $633K |
| 2026-07-02 | GH | Guardant Health, Inc. | M — Option exercise | 1.5K | $0.00 | |
| 2026-07-02 | GH | Guardant Health, Inc. | M — Option exercise | 2.9K | $0.00 | |
| 2026-07-02 | GH | Guardant Health, Inc. | M — Option exercise | 1.7K | $0.00 | |
| 2026-07-02 | GH | Guardant Health, Inc. | M — Option exercise | 974 | $0.00 | |
| 2026-06-16 | GH | Guardant Health, Inc. | F — Tax withholding / forfeiture | 535 | $129.82 | $69K |
| 2026-06-16 | GH | Guardant Health, Inc. | M — Option exercise | 1.0K | $0.00 | |
| 2026-05-28 | GH | Guardant Health, Inc. | S — Open-market sale | 6 | $126.08 | $756 |
| 2026-05-28 | GH | Guardant Health, Inc. | S — Open-market sale | 10.0K | $125.08 | $1.25M |
| 2026-05-22 | GH | Guardant Health, Inc. | S — Open-market sale | 7.2K | $107.23 | $770K |
| 2026-05-22 | GH | Guardant Health, Inc. | S — Open-market sale | 7.2K | $106.71 | $767K |
| 2026-05-22 | GH | Guardant Health, Inc. | S — Open-market sale | 5.6K | $105.34 | $593K |
| 2026-04-16 | GH | Guardant Health, Inc. | F — Tax withholding / forfeiture | 4.0K | $84.86 | $337K |
| 2026-04-16 | GH | Guardant Health, Inc. | M — Option exercise | 7.6K | $0.00 | |
| 2026-04-02 | GH | Guardant Health, Inc. | F — Tax withholding / forfeiture | 6.0K | $91.15 | $548K |
| 2026-04-02 | GH | Guardant Health, Inc. | M — Option exercise | 5.9K | $0.00 | |
| 2026-04-02 | GH | Guardant Health, Inc. | M — Option exercise | 2.9K | $0.00 | |
| 2026-04-02 | GH | Guardant Health, Inc. | M — Option exercise | 1.7K | $0.00 | |
| 2026-04-02 | GH | Guardant Health, Inc. | M — Option exercise | 974 | $0.00 | |
| 2026-03-17 | GH | Guardant Health, Inc. | F — Tax withholding / forfeiture | 4.6K | $85.49 | $395K |
John G. Saia serves as the Chief Legal Officer at Guardant Health, Inc., a company specializing in liquid-based cancer tests. He has been involved in various SEC filings related to the company, indicating his active role in corporate governance and legal matters.…
4 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 5 open-market sales ($3.38M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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