13F Pro

SEC Form 4 reporting owner

Walker James John

Walker James John has filed 22 Form 4 transactions reported between December 24, 2025 and September 3, 2026, as Chief Executive Officer of Nano Nuclear Energy Inc..

Name as filed: Walker James John

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$11.5M
18 lines
Companies
1
with Form 4 filings
Latest transaction
Sep 3, 2026
transaction date

Roles and reported holdings

  • NNENano Nuclear Energy Inc.
    Dec 24, 2025 – Sep 3, 2026

    Chief Executive Officer

    Held directly635,000 sh as of Sep 3, 2026 · Form 4

    24 months: $11.5M sold

Transaction history

All 22 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct25,000$444K@ $17.77Form 4
Sep 1, 2026NNEChief Executive OfficerOpen-market saleCode S · direct25,000$436K@ $17.44Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct25,000$651K@ $26.04Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct71$2K@ $29.91Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct201$6K@ $28.69Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct2,624$72K@ $27.55Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct25,792$690K@ $26.77Form 4
Jun 3, 2026NNEChief Executive OfficerOption exerciseCode M · direct28,688—Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct1,475$41K@ $27.90Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct22,380$606K@ $27.06Form 4
Jun 3, 2026NNEChief Executive OfficerOpen-market saleCode S · direct46,145$1.2M@ $26.18Form 4
Jun 3, 2026NNEChief Executive OfficerOption exerciseCode M · direct70,000$210K@ $3.00Form 4
Feb 2, 2026NNEChief Executive OfficerOption exerciseCode M · direct330,000$495K@ $1.50Form 4
Jan 28, 2026NNEChief Executive OfficerOpen-market saleCode S · direct810$29K@ $35.27Form 4
Jan 28, 2026NNEChief Executive OfficerOpen-market saleCode S · direct10,609$365K@ $34.38Form 4
Jan 28, 2026NNEChief Executive OfficerOpen-market saleCode S · direct13,581$457K@ $33.66Form 4
Jan 28, 2026NNEChief Executive OfficerOpen-market saleCode S · direct7,731$273K@ $35.26Form 4
Jan 28, 2026NNEChief Executive OfficerOpen-market saleCode S · direct76,171$2.6M@ $34.37Form 4
Jan 28, 2026NNEChief Executive OfficerOpen-market saleCode S · direct86,098$2.9M@ $33.64Form 4
Jan 28, 2026NNEChief Executive OfficerOption exerciseCode M · direct170,000$255K@ $1.50Form 4
Dec 24, 2025NNEChief Executive OfficerOpen-market saleCode S · direct2,541$79K@ $30.97Form 4
Dec 24, 2025NNEChief Executive OfficerOpen-market saleCode S · direct22,459$674K@ $30.03Form 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.