MOLINA ARTURO MD 4

What Happened

• Arturo Molina, M.D., Chief Medical Officer of Protagonist Therapeutics (PTGX), exercised 15,000 stock options on March 26, 2026 at a strike price of $8.04 per share (cost $120,600) and sold 15,000 shares in an open-market transaction the same day for a weighted average price of $104.79 per share (total proceeds ≈ $1,571,850). The filing also shows a derivative disposition of 15,000 units at $0.00, reflecting the option conversion to shares.

Key Details

• Transaction date: 2026-03-26; Form 4 filed 2026-03-27 (timely).
• Option exercise: 15,000 shares acquired at $8.04 each = $120,600.
• Open-market sale: 15,000 shares sold at weighted avg $104.79 = $1,571,850.
• Sale price range: $103.99 to $105.54 (weighted average reported; issuer can provide per-trade breakdown on SEC staff request). (Footnote F1)
• Option background: Option grant dated Nov 7, 2022; one quarter vested Nov 7, 2023, remaining three quarters vest monthly through Nov 7, 2026, subject to continued service. (Footnote F2)
• Shares owned after the transaction: not stated in the provided excerpt of the Form 4.

Context

• This was an exercise of vested options followed by an immediate sale of the resulting shares (common pattern to realize gains and cover exercise costs). Transaction codes: M = option exercise/conversion, S = sale. The report appears timely (filed one day after the transaction).