Boniface John J. (CIK 1870674) reported 12 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-12). Recent activity: Sell SERA (1,517 shares), Sell SERA (3,038 shares), Sell SERA (1,332 shares), Sell SERA (7,767 shares), Sell SERA (1,395 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-12 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 1,517 | $3,095 |
| 2026-03-10 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 3,038 | $5,954 |
| 2025-12-11 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 1,332 | $4,409 |
| 2025-11-12 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 7,767 | $20,350 |
| 2025-09-12 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 1,395 | $4,366 |
| 2025-08-11 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 7,094 | $18,019 |
| 2025-06-12 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Buy | 3,703 | $4,925 |
| 2025-06-12 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 1,439 | $2,130 |
| 2025-05-09 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 5,132 | $12,522 |
| 2025-03-07 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Buy | 47,010 | $0 |
| 2025-03-07 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 2,044 | $8,503 |
| 2025-02-14 | SERA PROGNOSTICS, INC. (SERA) | Chief Scientific Officer | Sell | 5,915 | $27,091 |
Source: SEC Form 4 filings · as of 2026-03-12