Chu Yu-Waye (CIK 1854586) reported 5 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-19). Recent activity: Sell CTMX (21,279 shares), Buy CTMX (75,000 shares), Sell CTMX (4,025 shares), Buy CTMX (56,000 shares), Buy CTMX (57,500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-19 | CytomX Therapeutics, Inc. (CTMX) | Chief Medical Officer | Sell | 21,279 | $136,611 |
| 2026-02-04 | CytomX Therapeutics, Inc. (CTMX) | Chief Medical Officer | Buy | 75,000 | $0 |
| 2025-03-20 | CytomX Therapeutics, Inc. (CTMX) | Chief Medical Officer | Sell | 4,025 | $2,415 |
| 2025-02-06 | CytomX Therapeutics, Inc. (CTMX) | Chief Medical Officer | Buy | 56,000 | $0 |
| 2025-02-06 | CytomX Therapeutics, Inc. (CTMX) | Chief Medical Officer | Buy | 57,500 | $0 |
Source: SEC Form 4 filings · as of 2026-03-19