13F Pro

SEC Form 4 reporting owner

Markell Jack A.

Markell Jack A. has filed 6 Form 4 transactions reported between January 2, 2026 and September 25, 2026, as Director of Rush Street Interactive, Inc. and Director of Graham Holdings Co.

Name as filed: Markell Jack A.

Open-market buys, 24 mo
$29K
1 lines
Open-market sales, 24 mo
None
reported
Companies
2
with Form 4 filings
Latest transaction
Sep 25, 2026
transaction date

Roles and reported holdings

  • RSIRush Street Interactive, Inc.
    Mar 14, 2026 – Sep 25, 2026

    Director

    Held directly18,883 sh as of Sep 25, 2026 · Form 4

    24 months: $29K bought

  • GHCGraham Holdings Co
    Jan 2, 2026 – Jul 1, 2026

    Director

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

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 25, 2026RSIDirectorOpen-market purchaseCode P · direct1,500$29K@ $19.35Form 4
Jul 1, 2026GHCDirectorGrant or awardCode A · indirect7$8K@ $1161.11Form 4
Jun 3, 2026RSIDirectorShares withheld for tax or exercise priceCode F · direct3,406$87K@ $25.42Form 4
Apr 1, 2026GHCDirectorGrant or awardCode A · indirect8$8K@ $1061.70Form 4
Mar 14, 2026RSIDirectorGrant or awardCode A · direct7,968—Form 4
Jan 2, 2026GHCDirectorGrant or awardCode A · indirect8$9K@ $1091.18Form 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.