SEC Form 4 reporting owner

Posard Matthew L.

Posard Matthew L. has filed 7 Form 4 transactions reported between May 5, 2026 and September 16, 2026, as Director of HALOZYME THERAPEUTICS, INC. and Director of Nautilus Biotechnology, Inc..

Name as filed: Posard Matthew L.

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$2.0M
4 lines
Companies
2
with Form 4 filings
Latest transaction
Sep 16, 2026
transaction date

Roles and reported holdings

  • HALOHALOZYME THERAPEUTICS, INC.
    May 5, 2026 – Sep 16, 2026

    Director

    Held directly58,839 sh as of Sep 16, 2026 · Form 4

    24 months: $2.0M sold

  • NAUTNautilus Biotechnology, Inc.
    Jun 18, 2026

    Director

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

Transaction history

All 7 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 16, 2026HALODirectorOpen-market saleCode S · direct4,000$436K@ $108.99Form 4
Sep 16, 2026HALODirectorOpen-market saleCode S · direct8,896$961K@ $108.04Form 4
Sep 16, 2026HALODirectorOpen-market saleCode S · direct3,000$320K@ $106.83Form 4
Sep 16, 2026HALODirectorOpen-market saleCode S · direct3,100$329K@ $106.13Form 4
Jun 18, 2026NAUTDirectorGrant or awardCode A · direct45,000—Form 4
May 5, 2026HALODirectorGrant or awardCode A · direct6,040—Form 4
May 5, 2026HALODirectorGrant or awardCode A · direct3,796—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.