Williams Lewis T (CIK 1475714) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-18). Recent activity: Buy PTGX (18,000 shares), Sell PTGX (18,000 shares), Buy PTGX (2,695 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-18 | Protagonist Therapeutics, Inc (PTGX) | Director | Buy | 18,000 | $195,120 |
| 2026-02-18 | Protagonist Therapeutics, Inc (PTGX) | Director | Sell | 18,000 | $1.5M |
| 2026-01-06 | Protagonist Therapeutics, Inc (PTGX) | Director | Buy | 2,695 | $0 |
Source: SEC Form 4 filings · as of 2026-02-18