SEC Form 4 reporting owner

Westlake BioPartners Opportunity Fund I, L.P.

Westlake BioPartners Opportunity Fund I, L.P. has filed 1 Form 4 transaction reported between December 18, 2025 and December 18, 2025, as 10% owner of Kyverna Therapeutics, Inc..

Name as filed: Westlake BioPartners Opportunity Fund I, L.P.

Open-market buys, 24 mo
$1000K
1 lines
Open-market sales, 24 mo
None
reported
Companies
1
with Form 4 filings
Latest transaction
Dec 18, 2025
transaction date

Roles and reported holdings

  • KYTXKyverna Therapeutics, Inc.
    Dec 18, 2025

    10% owner

    Held indirectly (latest line)869,317 sh as of Dec 18, 2025 · Form 4

    24 months: $1000K bought

Transaction history

All 1 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Dec 18, 2025KYTX10% ownerOpen-market purchaseCode P · indirectAlso reported by SEIDENBERG BETH C133,333$1000K@ $7.50Form 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.