13F Pro

SEC Form 4 reporting owner

Waddill William D.

Waddill William D. has filed 13 Form 4 transactions reported between December 16, 2025 and June 23, 2026, as Director of Protagonist Therapeutics, Inc, a reporting owner of Annexon, Inc. and Director of ARROWHEAD PHARMACEUTICALS, INC..

Name as filed: Waddill William D.

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$1.5M
4 lines
Companies
3
with Form 4 filings
Latest transaction
Jun 23, 2026
transaction date

Roles and reported holdings

  • PTGXProtagonist Therapeutics, Inc
    Jan 2, 2026 – Jun 23, 2026

    Director

    Held directly7,825 sh as of Jun 10, 2026 · Form 4

    24 months: $969K sold

  • ANNXAnnexon, Inc.
    Jun 11, 2026

    Reporting owner

    No common-stock holding reported on a purchase, sale, gift or withholding line.

  • ARWRARROWHEAD PHARMACEUTICALS, INC.
    Dec 16, 2025 – Dec 19, 2025

    Director

    Held directly56,563 sh as of Dec 19, 2025 · Form 4

    24 months: $566K sold

Transaction history

All 13 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jun 23, 2026PTGXDirectorOption exerciseCode M · direct9,000$149K@ $16.54Form 4
Jun 11, 2026ANNXGrant or awardCode A · direct65,000—Form 4
Jun 10, 2026PTGXDirectorOpen-market saleCode S · direct9,000$969K@ $107.68Form 4
Jun 10, 2026PTGXDirectorOption exerciseCode M · direct6,000$99K@ $16.54Form 4
Jun 10, 2026PTGXDirectorOption exerciseCode M · direct3,000$35K@ $11.80Form 4
May 29, 2026PTGXDirectorOption exerciseCode M · direct9,000$106K@ $11.80Form 4
Feb 6, 2026PTGXDirectorOption exerciseCode M · direct20,000$166K@ $8.31Form 4
Jan 2, 2026PTGXDirectorGrant or awardCode A · direct3,762—Form 4
Jan 2, 2026PTGXDirectorGrant or awardCode A · direct2,695—Form 4
Dec 19, 2025ARWRDirectorOpen-market saleCode S · direct500$34K@ $68.53Form 4
Dec 19, 2025ARWRDirectorOpen-market saleCode S · direct5,451$371K@ $68.01Form 4
Dec 19, 2025ARWRDirectorOpen-market saleCode S · direct2,416$161K@ $66.66Form 4
Dec 16, 2025ARWRDirectorGrant or awardCode A · direct7,819—Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.