CRITCHFIELD GREGORY C (CIK 1191080) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-14). Recent activity: Buy SERA (22,426 shares), Buy SERA (1,594 shares), Buy SERA (15,596 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-14 | SERA PROGNOSTICS, INC. (SERA) | Director | Buy | 22,426 | $0 |
| 2026-07-14 | SERA PROGNOSTICS, INC. (SERA) | Director | Buy | 1,594 | $0 |
| 2025-06-06 | SERA PROGNOSTICS, INC. (SERA) | Director | Buy | 15,596 | $0 |
Source: SEC Form 4 filings · as of 2026-07-14