POTTER MYRTLE S (CIK 1214130) reported 20 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-23). Recent activity: Sell GH (1,556 shares), Buy GH (4,203 shares), Sell GH (26 shares), Buy GH (69 shares), Buy GH (68 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-23 | Guardant Health, Inc. (GH) | Director | Sell | 1,556 | $204,085 |
| 2026-06-22 | Guardant Health, Inc. (GH) | Director | Buy | 4,203 | $0 |
| 2025-10-20 | Guardant Health, Inc. (GH) | Director | Sell | 26 | $1,741 |
| 2025-10-16 | Guardant Health, Inc. (GH) | Director | Buy | 69 | $0 |
| 2025-09-17 | Guardant Health, Inc. (GH) | Director | Buy | 68 | $0 |
| 2025-09-17 | Guardant Health, Inc. (GH) | Director | Sell | 26 | $1,446 |
| 2025-08-20 | Guardant Health, Inc. (GH) | Director | Sell | 26 | $1,535 |
| 2025-08-18 | Guardant Health, Inc. (GH) | Director | Buy | 69 | $0 |
| 2025-07-18 | Guardant Health, Inc. (GH) | Director | Sell | 26 | $1,253 |
| 2025-07-16 | Guardant Health, Inc. (GH) | Director | Buy | 68 | $0 |
| 2025-06-20 | Guardant Health, Inc. (GH) | Director | Sell | 26 | $1,286 |
| 2025-06-16 | Guardant Health, Inc. (GH) | Director | Buy | 6,674 | $0 |
| 2025-06-16 | Guardant Health, Inc. (GH) | Director | Buy | 69 | $0 |
| 2025-06-16 | Guardant Health, Inc. (GH) | Director | Sell | 2,626 | $130,512 |
| 2025-06-13 | Ginkgo Bioworks Holdings, Inc. (DNA) | Director | Buy | 10,822 | $0 |
| 2025-05-19 | Guardant Health, Inc. (GH) | Director | Buy | 68 | $0 |
| 2025-04-16 | Guardant Health, Inc. (GH) | Director | Buy | 68 | $0 |
| 2025-03-18 | Guardant Health, Inc. (GH) | Director | Buy | 69 | $0 |
| 2025-02-18 | Guardant Health, Inc. (GH) | Director | Buy | 68 | $0 |
| 2025-01-16 | Guardant Health, Inc. (GH) | Director | Buy | 68 | $0 |
Source: SEC Form 4 filings · as of 2026-06-23