SEC Form 4 reporting owner

Winzeler Jeffrey G

Winzeler Jeffrey G has filed 6 Form 4 transactions reported between March 6, 2026 and June 2, 2026, as Chief Financial Officer of Ambiq Micro, Inc..

Name as filed: Winzeler Jeffrey G

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$1.8M
2 lines
Companies
1
with Form 4 filings
Latest transaction
Jun 2, 2026
transaction date

Roles and reported holdings

  • AMBQAmbiq Micro, Inc.
    Mar 6, 2026 – Jun 2, 2026

    Chief Financial Officer

    Held directly94,395 sh as of May 14, 2026 · Form 4

    24 months: $1.8M sold

Transaction history

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

DateCompanyTypeSharesValueFiling
Jun 2, 2026AMBQChief Financial OfficerOption exerciseCode M · direct5,952$100K@ $16.80Form 4
May 15, 2026AMBQChief Financial OfficerOption exerciseCode M · direct5,952$100K@ $16.80Form 4
May 14, 2026AMBQChief Financial OfficerOpen-market saleCode S · direct82$6K@ $70.65Form 4
May 14, 2026AMBQChief Financial OfficerOpen-market saleCode S · direct25,918$1.8M@ $69.90Form 4
May 14, 2026AMBQChief Financial OfficerOption exerciseCode M · direct26,000$437K@ $16.80Form 4
Mar 6, 2026AMBQChief Financial OfficerGrant or awardCode A · direct41,728—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.