William D. Waddill, Director at Protagonist Therapeutics, Inc (PTGX), sold 20,000 shares at $83.68 ($1.7M) on 2026-02-06, disclosed to the SEC on 2026-02-06.
Open-market sale of $1.7M PTGX by Director. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| PTGX | SELL | 2026-06-01 | $897K | — | Filing → |
| ARWR | SELL | 2025-12-23 | $1.1M | — | Filing → |
| PTGX | SELL | 2025-10-14 | $979K | — | Filing → |