13F Pro

SEC Form 4 reporting owner

Heron Patrick J

Heron Patrick J has filed 7 Form 4 transactions reported between January 23, 2026 and June 15, 2026, as a reporting owner of Mirum Pharmaceuticals, Inc., Director of Arcutis Biotherapeutics, Inc. and a reporting owner of MBX Biosciences, Inc..

Name as filed: Heron Patrick J

Open-market buys, 24 mo
$9.0M
1 lines
Open-market sales, 24 mo
None
reported
Companies
3
with Form 4 filings
Latest transaction
Jun 15, 2026
transaction date

Roles and reported holdings

  • MIRMMirum Pharmaceuticals, Inc.
    Jan 23, 2026 – Jun 15, 2026

    Reporting owner

    Held indirectly (latest line)459,010 sh as of Jan 23, 2026 · Form 4

    24 months: $9.0M bought

  • ARQTArcutis Biotherapeutics, Inc.
    Jun 5, 2026

    Director

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

  • MBXMBX Biosciences, Inc.
    Jun 4, 2026

    Reporting owner

    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
Jun 15, 2026MIRMGrant or awardCode A · direct1,980—Form 4
Jun 15, 2026MIRMGrant or awardCode A · direct3,772—Form 4
Jun 5, 2026ARQTDirectorGrant or awardCode A · direct16,667—Form 4
Jun 5, 2026ARQTDirectorGrant or awardCode A · direct5,778—Form 4
Jun 4, 2026MBXGrant or awardCode A · direct12,500—Form 4
Jan 23, 2026MIRMOpen-market purchaseCode P · indirect131,425$9.0M@ $68.48Form 4
Jan 23, 2026MIRMOther acquisition or dispositionCode J · indirect159,277—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.