SEC Form 4 reporting owner

Hammer Joseph D

Hammer Joseph D has filed 2 Form 4 transactions reported between August 21, 2026 and August 21, 2026, as Former Chief Executive Officer of Expion Energy, Inc..

Name as filed: Hammer Joseph D

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
None
reported
Companies
1
with Form 4 filings
Latest transaction
Aug 21, 2026
transaction date

Roles and reported holdings

  • XPONExpion Energy, Inc.
    Aug 21, 2026

    Former Chief Executive Officer

    Held indirectly (latest line)1,058,609 sh as of Aug 21, 2026 · Form 4

    1 line is priced far from XPON’s market price that day, so the filing may concern a different security. Left out of totals and holdings; see the filings.

Transaction history

All 2 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 21, 2026XPONFormer Chief Executive OfficerOpen-market purchaseCode P · indirect1,058,609—Form 4
Aug 21, 2026XPONFormer Chief Executive OfficerOpen-market purchaseCode P · indirectPrice far from market; may be another security4,500$20.25B@ $4500000.00Form 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.

1 open-market line is priced outside 0.67×–1.5× of the stock’s closing price that day. A gap that large usually means the filing reports a different security than the company it is filed under, so those lines are shown but left out of totals and holdings.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.