Protagonist Therapeutics, Inc·4

Feb 6, 4:38 PM ET

Waddill William D. 4

4 · Protagonist Therapeutics, Inc · Filed Feb 6, 2026

Research Summary

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Protagonist (PTGX) Director Waddill Sells 20,000 Shares After Exercising Options

What Happened William D. Waddill, a director of Protagonist Therapeutics (PTGX), exercised options to acquire 20,000 shares at $8.31 per share (cost $166,200) and sold 20,000 shares in an open-market transaction on February 6, 2026 for a weighted average price of $83.68 per share (proceeds ≈ $1,673,600). The filing also reports a derivative conversion/disposition of 20,000 shares listed with $0 proceeds related to the same transactions. Overall, this appears as a same-day exercise and sale (i.e., option exercise followed by sale), which is commonly used to cover exercise costs and taxes.

Key Details

  • Transaction date: 2026-02-06 (reported filed same day)
  • Exercise: 20,000 shares exercised at $8.31 each — total cash paid $166,200
  • Sale: 20,000 shares sold in open market at weighted average $83.68 — total proceeds ≈ $1,673,600
  • Sale price range (per footnote): $83.65 to $83.87; weighted average reported
  • Footnote: Options exercised are fully vested (F2); sale prices reported as a weighted average and per-share breakouts available on request (F1)
  • Shares owned after transaction: not specified in the summary provided — see the full Form 4 for post-transaction beneficial ownership
  • Filing timeliness: reported on the same date as the transactions; no late filing indicated

Context

  • This was an option exercise immediately followed by a sale (cashless-style), which converts vested option value into cash rather than signaling a new purchase/bullish bet. Insiders sell stock for many routine reasons (taxes, diversification); such sales do not by themselves indicate company performance.

Insider Transaction Report

Form 4
Period: 2026-02-06
Transactions
  • Exercise/Conversion

    Common Stock

    2026-02-06$8.31/sh+20,000$166,20027,825 total
  • Sale

    Common Stock

    [F1]
    2026-02-06$83.68/sh20,000$1,673,6007,825 total
  • Exercise/Conversion

    Stock Option (right to buy)

    [F2]
    2026-02-0620,0000 total
    Exercise: $8.31Exp: 2032-05-25Common Stock (20,000 underlying)
Footnotes (2)
  • [F1]The price reported represents the weighted average sale price per share. The shares were sold in multiple transactions at prices ranging from $83.65 to $83.87. Upon request by the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
  • [F2]These stock options are fully vested.
Signature
/s/ Matthew Gosling, Attorney-in-Fact for William D. Waddill|2026-02-06

Documents

1 file
  • 4
    tm265544-1_4seq1.xmlPrimary

    OWNERSHIP DOCUMENT