Williams Charles O (CIK 1325818) reported 5 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-16). Recent activity: Buy SRZN (1,666 shares), Buy SRZN (3,500 shares), Sell SRZN (1,566 shares), Buy SRZN (1,666 shares), Buy SRZN (400 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | Surrozen, Inc./DE (SRZN) | Chief Operating Officer | Buy | 1,666 | $13,511 |
| 2026-01-06 | Surrozen, Inc./DE (SRZN) | Chief Operating Officer | Buy | 3,500 | $0 |
| 2026-01-06 | Surrozen, Inc./DE (SRZN) | Chief Operating Officer | Sell | 1,566 | $31,116 |
| 2025-12-16 | Surrozen, Inc./DE (SRZN) | Chief Operating Officer | Buy | 1,666 | $13,511 |
| 2025-06-16 | Surrozen, Inc./DE (SRZN) | CFO and COO | Buy | 400 | $3,224 |
Source: SEC Form 4 filings · as of 2026-06-16