13F Pro

SEC Form 4 reporting owner

Yuen Maggie

Yuen Maggie has filed 8 Form 4 transactions reported between December 15, 2025 and August 5, 2026, as Director of AtriCure, Inc. and Chief Financial Officer of Penumbra Inc.

Name as filed: Yuen Maggie

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$967K
2 lines
Companies
2
with Form 4 filings
Latest transaction
Aug 5, 2026
transaction date

Roles and reported holdings

  • ATRCAtriCure, Inc.
    May 18, 2026 – Aug 5, 2026

    Director

    Held directly14,015 sh as of Aug 5, 2026 · Form 4

    24 months: $134K sold

  • PENPenumbra Inc
    Dec 15, 2025 – Mar 15, 2026

    Chief Financial Officer

    Held directly18,167 sh as of Mar 15, 2026 · Form 4

    24 months: $832K sold

Transaction history

All 8 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 5, 2026ATRCDirectorOpen-market saleCode S · direct3,500$134K@ $38.42Form 4
May 18, 2026ATRCDirectorGrant or awardCode A · direct6,144—Form 4
Mar 15, 2026PENChief Financial OfficerShares withheld for tax or exercise priceCode F · direct186$63K@ $336.18Form 4
Mar 2, 2026PENChief Financial OfficerOpen-market saleCode S · direct2,432$832K@ $342.30Form 4
Feb 17, 2026PENChief Financial OfficerGrant or awardCode A · direct2,630—Form 4
Feb 15, 2026PENChief Financial OfficerShares withheld for tax or exercise priceCode F · direct481$163K@ $339.30Form 4
Feb 13, 2026PENChief Financial OfficerGrant or awardCode A · direct2,630—Form 4
Dec 15, 2025PENChief Financial OfficerShares withheld for tax or exercise priceCode F · direct565$175K@ $309.15Form 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.