SEC Form 4 reporting owner

Heyburn William A.

Heyburn William A. has filed 12 Form 4 transactions reported between December 9, 2025 and September 24, 2026, as Co-CEO and CFO of Strata Critical Medical, Inc..

Name as filed: Heyburn William A.

Open-market buys, 24 mo
$76K
1 lines
Open-market sales, 24 mo
$186K
1 lines
Companies
1
with Form 4 filings
Latest transaction
Sep 24, 2026
transaction date

Roles and reported holdings

  • SRTAStrata Critical Medical, Inc.
    Dec 9, 2025 – Sep 24, 2026

    Co-CEO and CFO

    Held directly1,757,850 sh as of Sep 24, 2026 · Form 4

    24 months: $76K bought · $186K sold

Transaction history

All 12 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 24, 2026SRTACo-CEO and CFOShares withheld for tax or exercise priceCode F · direct98,356$518K@ $5.27Form 4
Sep 24, 2026SRTACo-CEO and CFOGrant or awardCode A · direct177,858—Form 4
Sep 8, 2026SRTACo-CEO and CFOShares withheld for tax or exercise priceCode F · direct31,671$168K@ $5.31Form 4
Jul 31, 2026SRTACo-CEO and CFOShares withheld for tax or exercise priceCode F · direct199,209$1.0M@ $5.09Form 4
Jul 30, 2026SRTACo-CEO and CFOGrant or awardCode A · direct179,160—Form 4
Jul 30, 2026SRTACo-CEO and CFOGrant or awardCode A · direct181,071—Form 4
Jun 8, 2026SRTACo-CEO and CFOOpen-market saleCode S · direct31,671$186K@ $5.87Form 4
Apr 24, 2026SRTACo-CEO and CFOShares withheld for tax or exercise priceCode F · direct301,731$1.5M@ $4.92Form 4
Apr 23, 2026SRTACo-CEO and CFOGrant or awardCode A · direct545,625—Form 4
Mar 8, 2026SRTACo-CEO and CFOShares withheld for tax or exercise priceCode F · direct31,314$142K@ $4.54Form 4
Dec 10, 2025SRTACo-CEO and CFOShares withheld for tax or exercise priceCode F · direct35,348$155K@ $4.38Form 4
Dec 9, 2025SRTACo-CEO and CFOOpen-market purchaseCode P · direct17,000$76K@ $4.47Form 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.