13F Pro

SEC Form 4 reporting owner

Armstrong Jason

Armstrong Jason has filed 12 Form 4 transactions reported between January 20, 2026 and March 5, 2026, as CFO of COMCAST CORP.

Name as filed: Armstrong Jason

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$143K
1 lines
Companies
1
with Form 4 filings
Latest transaction
Mar 5, 2026
transaction date

Roles and reported holdings

  • CCZCOMCAST CORP
    Jan 20, 2026 – Mar 5, 2026

    CFO

    Held directly98,903 sh as of Mar 5, 2026 · Form 4

    24 months: $143K sold

Transaction history

All 12 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Mar 5, 2026CCZCFOShares withheld for tax or exercise priceCode F · direct69,003$2.2M@ $31.75Form 4
Mar 5, 2026CCZCFOOpen-market saleCode S · direct4,494$143K@ $31.73Form 4
Mar 5, 2026CCZCFOOption exerciseCode M · direct73,497$2.1M@ $28.38Form 4
Mar 1, 2026CCZCFOShares withheld for tax or exercise priceCode F · direct43,060$1.3M@ $30.96Form 4
Mar 1, 2026CCZCFOShares withheld for tax or exercise priceCode F · direct2,688$83K@ $30.96Form 4
Mar 1, 2026CCZCFOShares withheld for tax or exercise priceCode F · direct2,099$65K@ $30.96Form 4
Mar 1, 2026CCZCFOOption exerciseCode M · direct4,540—Form 4
Mar 1, 2026CCZCFOOption exerciseCode M · direct5,813—Form 4
Mar 1, 2026CCZCFOOption exerciseCode M · direct93,142—Form 4
Feb 24, 2026CCZCFOGrant or awardCode A · direct93,142—Form 4
Jan 20, 2026CCZCFOShares withheld for tax or exercise priceCode F · direct3,950$112K@ $28.42Form 4
Jan 20, 2026CCZCFOOption exerciseCode M · direct8,150—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.