13F Pro

SEC Form 4 reporting owner

Charles Dirkson R

Charles Dirkson R has filed 14 Form 4 transactions reported between December 1, 2025 and September 10, 2026, as a reporting owner of Builders FirstSource, Inc., Director of DPC Holdings PLC and a reporting owner of Loar Holdings Inc..

Name as filed: Charles Dirkson R

Open-market buys, 24 mo
$39.8M
5 lines
Open-market sales, 24 mo
None
reported
Companies
3
with Form 4 filings
Latest transaction
Sep 10, 2026
transaction date

Roles and reported holdings

  • BLDRBuilders FirstSource, Inc.
    Dec 1, 2025 – Sep 10, 2026

    Reporting owner

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

  • DPCDPC Holdings PLC
    Jun 24, 2026 – Jun 26, 2026

    Director

    Held directly903,448 sh as of Jun 26, 2026 · Form 4
    Held indirectly (latest line)511,466 sh as of Jun 26, 2026 · Form 4

    24 months: $36.8M bought

  • LOARLoar Holdings Inc.
    Mar 10, 2026 – Mar 12, 2026

    Reporting owner

    Held indirectly (latest line)4,087,005 sh as of Mar 12, 2026 · Form 4

    24 months: $3.0M bought

Transaction history

All 14 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 10, 2026BLDRGrant or awardCode A · direct470—Form 4
Jun 26, 2026DPCDirectorOpen-market purchaseCode P · indirect212,121$7.0M@ $33.00Form 4
Jun 26, 2026DPCDirectorGrant or awardCode A · direct23,797—Form 4
Jun 26, 2026DPCDirectorOpen-market purchaseCode P · direct903,448$29.8M@ $33.00Form 4
Jun 24, 2026DPCDirectorGrant or awardCode A · direct160,190—Form 4
Jun 24, 2026DPCDirectorGrant or awardCode A · direct20,830—Form 4
Jun 24, 2026DPCDirectorGrant or awardCode A · direct20,829—Form 4
Jun 1, 2026BLDRGrant or awardCode A · direct409$31K@ $76.26Form 4
May 14, 2026BLDRGrant or awardCode A · direct2,558—Form 4
Mar 12, 2026LOAROpen-market purchaseCode P · indirect36,434$2.5M@ $67.45Form 4
Mar 11, 2026LOAROpen-market purchaseCode P · indirect4,166$281K@ $67.49Form 4
Mar 10, 2026LOAROpen-market purchaseCode P · indirect3,400$229K@ $67.41Form 4
Mar 1, 2026BLDRGrant or awardCode A · direct299$31K@ $104.29Form 4
Dec 1, 2025BLDRGrant or awardCode A · direct278$31K@ $112.23Form 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.