13F Pro

SEC Form 4 reporting owner

Mastrangelo Joe

Mastrangelo Joe has filed 15 Form 4 transactions reported between March 2, 2026 and September 16, 2026, as Chief Executive Officer of Eos Energy Enterprises, Inc..

Name as filed: Mastrangelo Joe

Open-market buys, 24 mo
$502K
2 lines
Open-market sales, 24 mo
$1.6M
2 lines
Companies
1
with Form 4 filings
Latest transaction
Sep 16, 2026
transaction date

Roles and reported holdings

  • EOSEEos Energy Enterprises, Inc.
    Mar 2, 2026 – Sep 16, 2026

    Chief Executive Officer

    Held directly2,308,704 sh as of Sep 16, 2026 · Form 4

    24 months: $502K bought · $1.6M sold

Transaction history

All 15 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 16, 2026EOSEChief Executive OfficerOpen-market saleCode S · direct250,000$980K@ $3.92Form 4
Sep 14, 2026EOSEChief Executive OfficerGrant or awardCode A · direct500,000—Form 4
Aug 24, 2026EOSEChief Executive OfficerGrant or awardCode A · direct611,406—Form 4
Jul 27, 2026EOSEChief Executive OfficerOpen-market saleCode S · direct159,154$575K@ $3.61Form 4
Jul 25, 2026EOSEChief Executive OfficerOption exerciseCode M · direct333,334—Form 4
Jul 21, 2026EOSEChief Executive OfficerOption exerciseCode M · direct48,758—Form 4
Jul 21, 2026EOSEChief Executive OfficerOption exerciseCode M · direct111,118$609K@ $5.48Form 4
Jul 6, 2026EOSEChief Executive OfficerShares withheld for tax or exercise priceCode F · direct121,245$613K@ $5.06Form 4
Jul 5, 2026EOSEChief Executive OfficerOption exerciseCode M · direct254,304—Form 4
Jun 30, 2026EOSEChief Executive OfficerShares withheld for tax or exercise priceCode F · direct60,703$370K@ $6.09Form 4
Jun 26, 2026EOSEChief Executive OfficerOption exerciseCode M · direct130,570—Form 4
Jun 12, 2026EOSEChief Executive OfficerShares withheld for tax or exercise priceCode F · direct116,646$707K@ $6.06Form 4
Jun 12, 2026EOSEChief Executive OfficerOption exerciseCode M · direct200,000$268K@ $1.34Form 4
Mar 4, 2026EOSEChief Executive OfficerOpen-market purchaseCode P · direct23,900$157K@ $6.58Form 4
Mar 2, 2026EOSEChief Executive OfficerOpen-market purchaseCode P · direct60,000$345K@ $5.75Form 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.