William D. Waddill sold PTGX stock

William D. Waddill, Dir of Protagonist Therapeutics, Inc (PTGX), sold 9,000 shares of PTGX stock, per an SEC Form 4 filed Jun 11, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Jun 10, 2026, 1 day before it was made public.

PTGX has moved +27.0% since the trade date, from $105.77 to $134.38 (Nov 12, 2026 close).