BELVIN MARCIA (CIK 1970752) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-19). Recent activity: Sell CTMX (31,492 shares), Buy CTMX (60,000 shares), Buy CTMX (37,500 shares), Sell CTMX (13,884 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-19 | CytomX Therapeutics, Inc. (CTMX) | SVP, Chief Scientific Officer | Sell | 31,492 | $202,179 |
| 2026-02-04 | CytomX Therapeutics, Inc. (CTMX) | SVP, Chief Scientific Officer | Buy | 60,000 | $0 |
| 2025-06-17 | CytomX Therapeutics, Inc. (CTMX) | SVP, Chief Scientific Officer | Buy | 37,500 | $0 |
| 2025-06-17 | CytomX Therapeutics, Inc. (CTMX) | SVP, Chief Scientific Officer | Sell | 13,884 | $37,348 |
来源：SEC Form 4 申报文件 · 截至 2026-03-19