SEC Form 4 reporting owner

Hayden Michael R

Hayden Michael R has filed 8 Form 4 transactions reported between June 11, 2026 and August 24, 2026, as Director of AbCellera Biologics Inc. and Director of IONIS PHARMACEUTICALS INC.

Name as filed: Hayden Michael R

Open-market buys, 24 mo
$2.1M
4 lines
Open-market sales, 24 mo
None
reported
Companies
2
with Form 4 filings
Latest transaction
Aug 24, 2026
transaction date

Roles and reported holdings

  • ABCLAbCellera Biologics Inc.
    Jun 11, 2026 – Aug 24, 2026

    Director

    Held indirectly (latest line)1,373,397 sh as of Aug 24, 2026 · Form 4

    24 months: $1.1M bought

  • IONSIONIS PHARMACEUTICALS INC
    Jul 1, 2026 – Jul 31, 2026

    Director

    Held indirectly (latest line)24,000 sh as of Jul 31, 2026 · Form 4

    24 months: $1.1M bought

Transaction history

All 8 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 24, 2026ABCLDirectorOpen-market purchaseCode P · indirect53,613$570K@ $10.64Form 4
Aug 12, 2026ABCLDirectorOpen-market purchaseCode P · indirect46,387$481K@ $10.37Form 4
Aug 11, 2026ABCLDirectorGiftCode G · indirect50,000—Form 4
Jul 31, 2026IONSDirectorOpen-market purchaseCode P · indirect5,000$258K@ $51.60Form 4
Jul 30, 2026IONSDirectorOpen-market purchaseCode P · indirect15,000$801K@ $53.38Form 4
Jul 1, 2026IONSDirectorGrant or awardCode A · direct2,301—Form 4
Jul 1, 2026IONSDirectorGrant or awardCode A · direct5,369—Form 4
Jun 11, 2026ABCLDirectorGrant or awardCode A · direct111,701—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.