13F Pro

SEC Form 4 reporting owner

Siegall Clay B

Siegall Clay B has filed 10 Form 4 transactions reported between December 18, 2025 and July 23, 2026, as President and CEO of Immunome Inc. and a reporting owner of Shattuck Labs, Inc..

Name as filed: SIEGALL CLAY B

Open-market buys, 24 mo
$2.0M
5 lines
Open-market sales, 24 mo
None
reported
Companies
2
with Form 4 filings
Latest transaction
Jul 23, 2026
transaction date

Roles and reported holdings

  • IMNMImmunome Inc.
    Dec 18, 2025 – Jul 23, 2026

    President and CEO

    Held directly690,704 sh as of Mar 27, 2026 · Form 4

    24 months: $1.7M bought

  • STTKShattuck Labs, Inc.
    May 22, 2026 – Jun 9, 2026

    Reporting owner

    Held directly318,608 sh as of Jun 9, 2026 · Form 4

    24 months: $250K bought

Transaction history

All 10 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jul 23, 2026IMNMPresident and CEOGrant or awardCode A · direct360,000—Form 4
Jul 23, 2026IMNMPresident and CEOGrant or awardCode A · direct180,000—Form 4
Jun 9, 2026STTKOpen-market purchaseCode P · direct62,500$250K@ $4.00Form 4
May 29, 2026STTKGrant or awardCode A · direct81,000—Form 4
May 22, 2026STTKGrant or awardCode A · direct128,054$139K@ $1.08Form 4
Mar 27, 2026IMNMPresident and CEOOpen-market purchaseCode P · direct25,450$501K@ $19.67Form 4
Dec 30, 2025IMNMPresident and CEOOpen-market purchaseCode P · direct4,729$100K@ $21.15Form 4
Dec 19, 2025IMNMPresident and CEOGiftCode G · direct200,000—Form 4
Dec 19, 2025IMNMPresident and CEOOpen-market purchaseCode P · direct7,278$149K@ $20.48Form 4
Dec 18, 2025IMNMPresident and CEOOpen-market purchaseCode P · direct46,511$1000K@ $21.50Form 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.