SELICK HAROLD E 4

What Happened

• Harold E. Selick, a director of Protagonist Therapeutics, exercised 24,000 stock options at $12.88 per share (cost $309,120) on 2026-03-26 and sold 24,000 shares in an open-market transaction at $105.00 per share, yielding $2,520,000. The same filing also shows a derivative disposition of 24,000 shares reported at $0.00; the filing does not explain that entry.

Key Details

• Transaction date: 2026-03-26 (reported on Form 4 filed 2026-03-27)
• Exercise: 24,000 options @ $12.88 — total cash paid $309,120 (transaction code M)
• Sale: 24,000 shares @ $105.00 — total proceeds $2,520,000 (transaction code S)
• Additional entry: 24,000 derivative shares reported as disposed @ $0.00 (derivative)
• Shares owned after transaction: not disclosed in the provided filing excerpt
• Footnote: F1 — the exercised stock options were fully vested
• Filing timeliness: Form 4 was filed the next day (period of report 2026-03-26, filed 2026-03-27), which is generally timely

Context

• The sequence (exercise of options and sale of the same number of shares on the same date) is consistent with a cashless exercise or immediate sale to realize proceeds; the filing itself does not state the insider’s motivation. Retail investors should view this as insiders converting vested options to cash; such sales can be routine and do not alone indicate a change in company fundamentals.