Guardant Health, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| MIGNONE ROBERTO | — | Option Exercise | 264 | — | — | 3,695 | Dec 21, 2025 |
| Hidalgo Medina Manuel | — | Option Exercise | 232 | — | — | 1,029 | Dec 17, 2025 |
| Tariq Musa | — | Sale | 116 | $101.46 | $11,769 | 7,993 | Dec 17, 2025 |
| Tariq Musa | — | Option Exercise | 250 | — | — | 8,109 | Dec 15, 2025 |
| Saia John G. | Chief Legal Officer | Tax Withholding | 535 | $102.67 | $54,928 | 43,657 | Dec 15, 2025 |
| Kalia Kumud | Chief Information Officer | Option Exercise | 637 | — | — | 23,002 | Dec 15, 2025 |
| Freeman Chris | Chief Commercial Officer | Tax Withholding | 594 | $102.67 | $60,986 | 26,795 | Dec 15, 2025 |
| Eltoukhy Helmy | Co-Chief Executive Officer | Sale | 6,620 | $104.02 | $688,612 | 2,047,143 | Dec 15, 2025 |
| EAGLE CRAIG | Chief Medical Officer | Option Exercise | 1,402 | — | — | 45,718 | Dec 15, 2025 |
| Chudova Darya | Chief Technology Officer | Sale | 5,451 | $104.04 | $567,122 | 7,012 | Dec 15, 2025 |
| Bell Michael Brian | Chief Financial Officer | Option Exercise | 2,039 | — | — | 31,324 | Dec 15, 2025 |
| Talasaz AmirAli | Co-Chief Executive Officer | Other | 193,973 | — | — | 218,223 | Dec 8, 2025 |
| Kalia Kumud | Chief Information Officer | Sale | 2,000 | $104.60 | $209,200 | 22,365 | Dec 8, 2025 |
| Hidalgo Medina Manuel | — | Sale | 1,000 | $105.00 | $105,000 | 1,047 | Dec 8, 2025 |
| Chudova Darya | Chief Technology Officer | Other | 68,144 | — | — | 21,734 | Dec 8, 2025 |
| Freeman Chris | Chief Commercial Officer | Sale | 3,414 | $103.25 | $352,496 | 35,906 | Dec 5, 2025 |
| Bell Michael Brian | Chief Financial Officer | Sale | 11,978 | $103.96 | $1,245,233 | 57,945 | Dec 5, 2025 |
| CLARK IAN T | — | Option Exercise | 10,703 | $31.84 | $340,784 | 38,462 | Dec 5, 2025 |
| Monroe Terilyn J. | Chief People Officer | Option Exercise | 35,000 | $20.14 | $704,900 | 61,087 | Dec 1, 2025 |
| Krognes Steve E. | — | Option Exercise | 155 | — | — | 18,591 | Nov 30, 2025 |
| MIGNONE ROBERTO | — | Option Exercise | 264 | — | — | 3,431 | Nov 21, 2025 |
| Tariq Musa | — | Sale | 116 | $96.25 | $11,165 | 7,859 | Nov 19, 2025 |
| Hidalgo Medina Manuel | — | Option Exercise | 232 | — | — | 1,047 | Nov 17, 2025 |
| Tariq Musa | — | Option Exercise | 250 | — | — | 7,975 | Nov 15, 2025 |
| Hidalgo Medina Manuel | — | Option Exercise | 1,000 | $32.55 | $32,550 | 2,315 | Nov 7, 2025 |
| Saia John G. | Chief Legal Officer | Sale | 8,996 | $96.25 | $865,865 | 43,172 | Nov 7, 2025 |
| Krognes Steve E. | — | Option Exercise | 154 | — | — | 18,436 | Oct 31, 2025 |
| MIGNONE ROBERTO | — | Option Exercise | 3,167 | — | — | 3,167 | Oct 21, 2025 |
| Hidalgo Medina Manuel | — | Option Exercise | 232 | — | — | 1,315 | Oct 17, 2025 |
| Tariq Musa | — | Sale | 116 | $66.95 | $7,766 | 7,725 | Oct 17, 2025 |
| POTTER MYRTLE S | — | Sale | 26 | $66.95 | $1,741 | 18,324 | Oct 17, 2025 |
| Tariq Musa | — | Option Exercise | 250 | — | — | 7,841 | Oct 15, 2025 |
| POTTER MYRTLE S | — | Option Exercise | 69 | — | — | 18,350 | Oct 15, 2025 |
| Saia John G. | Chief Legal Officer | Option Exercise | 1,668 | — | — | 48,074 | Oct 1, 2025 |
| Monroe Terilyn J. | Chief People Officer | Option Exercise | 10,477 | — | — | 31,397 | Oct 1, 2025 |
| Kalia Kumud | Chief Information Officer | Tax Withholding | 5,348 | $62.65 | $335,052 | 24,365 | Oct 1, 2025 |
| Freeman Chris | Chief Commercial Officer | Option Exercise | 1,928 | — | — | 51,557 | Oct 1, 2025 |
| EAGLE CRAIG | Chief Medical Officer | Option Exercise | 1,714 | — | — | 39,196 | Oct 1, 2025 |
| Chudova Darya | Chief Technology Officer | Option Exercise | 1,339 | — | — | 82,788 | Oct 1, 2025 |
| Bell Michael Brian | Chief Financial Officer | Option Exercise | 13,097 | — | — | 59,822 | Oct 1, 2025 |
| Talasaz AmirAli | Co-Chief Executive Officer | Tax Withholding | 12,162 | $62.65 | $761,949 | 1,997,874 | Sep 30, 2025 |
| Krognes Steve E. | — | Option Exercise | 154 | — | — | 18,282 | Sep 30, 2025 |
| Eltoukhy Helmy | Co-Chief Executive Officer | Option Exercise | 4,814 | — | — | 2,128,313 | Sep 30, 2025 |
| Hidalgo Medina Manuel | — | Option Exercise | 232 | — | — | 1,083 | Sep 17, 2025 |
| Tariq Musa | — | Sale | 116 | $55.63 | $6,453 | 7,591 | Sep 15, 2025 |
| POTTER MYRTLE S | — | Sale | 26 | $55.63 | $1,446 | 18,281 | Sep 15, 2025 |
| Saia John G. | Chief Legal Officer | Option Exercise | 1,019 | — | — | 45,967 | Sep 15, 2025 |
| Kalia Kumud | Chief Information Officer | Option Exercise | 638 | — | — | 19,488 | Sep 15, 2025 |
| Freeman Chris | Chief Commercial Officer | Tax Withholding | 594 | $54.79 | $32,545 | 49,629 | Sep 15, 2025 |
| EAGLE CRAIG | Chief Medical Officer | Option Exercise | 1,402 | — | — | 38,193 | Sep 15, 2025 |