13F Pro

SEC Form 4 reporting owner

Sheffield Ian

Sheffield Ian has filed 3 Form 4 transactions reported between June 10, 2026 and August 31, 2026, as a reporting owner of Invivyd, Inc. and a reporting owner of FRACTYL HEALTH, INC..

Name as filed: Sheffield Ian

Open-market buys, 24 mo
$26K
1 lines
Open-market sales, 24 mo
None
reported
Companies
2
with Form 4 filings
Latest transaction
Aug 31, 2026
transaction date

Roles and reported holdings

  • IVVDInvivyd, Inc.
    Aug 31, 2026

    Reporting owner

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

  • GUTSFRACTYL HEALTH, INC.
    Jun 10, 2026

    Reporting owner

    Held directly35,000 sh as of Jun 10, 2026 · Form 4

    24 months: $26K bought

Transaction history

All 3 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 31, 2026IVVDGrant or awardCode A · direct100,000—Form 4
Jun 10, 2026GUTSGrant or awardCode A · direct22,500—Form 4
Jun 10, 2026GUTSOpen-market purchaseCode P · direct35,000$26K@ $0.7294Form 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.