13F Pro

SEC Form 4 reporting owner

Horan Christopher

Horan Christopher has filed 10 Form 4 transactions reported between December 12, 2025 and September 9, 2026, as Chief Tech Operations Officer of Artiva Biotherapeutics, Inc..

Name as filed: Horan Christopher

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$179K
2 lines
Companies
1
with Form 4 filings
Latest transaction
Sep 9, 2026
transaction date

Roles and reported holdings

  • ARTVArtiva Biotherapeutics, Inc.
    Dec 12, 2025 – Sep 9, 2026

    Chief Tech Operations Officer

    Held directly283,084 sh as of Sep 3, 2026 · Form 4

    24 months: $179K sold

Transaction history

All 10 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 9, 2026ARTVChief Tech Operations OfficerGrant or awardCode A · direct120,000—Form 4
Sep 9, 2026ARTVChief Tech Operations OfficerGrant or awardCode A · direct40,000—Form 4
Sep 3, 2026ARTVChief Tech Operations OfficerOpen-market saleCode S · direct10,366$116K@ $11.16Form 4
May 19, 2026ARTVChief Tech Operations OfficerOpen-market saleCode S · direct7,002$63K@ $9.01Form 4
Feb 15, 2026ARTVChief Tech Operations OfficerShares withheld for tax or exercise priceCode F · direct2,187$9K@ $4.00Form 4
Feb 15, 2026ARTVChief Tech Operations OfficerGrant or awardCode A · direct117,300—Form 4
Dec 12, 2025ARTVChief Tech Operations OfficerDisposition to issuerCode D · direct20,519—Form 4
Dec 12, 2025ARTVChief Tech Operations OfficerDisposition to issuerCode D · direct9,119—Form 4
Dec 12, 2025ARTVChief Tech Operations OfficerDisposition to issuerCode D · direct77,519—Form 4
Dec 12, 2025ARTVChief Tech Operations OfficerGrant or awardCode A · direct107,156—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.