13F Pro

SEC Form 4 reporting owner

Anderson Karen M.

Anderson Karen M. has filed 15 Form 4 transactions reported between February 1, 2026 and June 24, 2026, as Chief People Officer of Centessa Pharmaceuticals plc.

Name as filed: Anderson Karen M.

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$3.2M
2 lines
Companies
1
with Form 4 filings
Latest transaction
Jun 24, 2026
transaction date

Roles and reported holdings

  • CNTACentessa Pharmaceuticals plc
    Feb 1, 2026 – Jun 24, 2026

    Chief People Officer

    Held directly62,085 sh as of Mar 13, 2026 · Form 4

    24 months: $3.2M sold

Transaction history

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

DateCompanyTypeSharesValueFiling
Jun 24, 2026CNTAChief People OfficerDisposition to issuerCode D · direct117,000—Form 4
Jun 24, 2026CNTAChief People OfficerDisposition to issuerCode D · direct120,000—Form 4
Jun 24, 2026CNTAChief People OfficerDisposition to issuerCode D · direct83,924—Form 4
Jun 24, 2026CNTAChief People OfficerDisposition to issuerCode D · direct28,336—Form 4
Jun 24, 2026CNTAChief People OfficerDisposition to issuerCode D · direct75,000—Form 4
Jun 24, 2026CNTAChief People OfficerDisposition to issuerCode D · direct62,085—Form 4
Mar 26, 2026CNTAChief People OfficerOption exerciseCode M · direct41,076$329K@ $8.01Form 4
Mar 17, 2026CNTAChief People OfficerOption exerciseCode M · direct10,043$40K@ $4.01Form 4
Mar 16, 2026CNTAChief People OfficerOption exerciseCode M · direct64,768$260K@ $4.01Form 4
Mar 13, 2026CNTAChief People OfficerOpen-market saleCode S · direct12,068$327K@ $27.13Form 4
Mar 13, 2026CNTAChief People OfficerOpen-market saleCode S · direct107,961$2.8M@ $26.15Form 4
Mar 13, 2026CNTAChief People OfficerOption exerciseCode M · direct109,398$439K@ $4.01Form 4
Feb 2, 2026CNTAChief People OfficerGrant or awardCode A · direct117,000—Form 4
Feb 2, 2026CNTAChief People OfficerGrant or awardCode A · direct29,000—Form 4
Feb 1, 2026CNTAChief People OfficerShares withheld for tax or exercise priceCode F · direct10,606$261K@ $24.57Form 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.