13F Pro

SEC Form 4 reporting owner

Chen Bihua

Chen Bihua has filed 11 Form 4 transactions reported between January 22, 2026 and August 10, 2026, as a reporting owner of BlossomHill Therapeutics, Inc., Director of BridgeBio Oncology Therapeutics, Inc. and Chairperson and CEO of Helix Acquisition Corp. III.

Name as filed: Chen Bihua

Open-market buys, 24 mo
$5.0M
1 lines
Open-market sales, 24 mo
None
reported
Companies
3
with Form 4 filings
Latest transaction
Aug 10, 2026
transaction date

Roles and reported holdings

  • BLSMBlossomHill Therapeutics, Inc.
    Aug 6, 2026 – Aug 10, 2026

    Reporting owner

    Held indirectly (latest line)3,614,034 sh as of Aug 10, 2026 · Form 4

    24 months: $5.0M bought

  • BBOTBridgeBio Oncology Therapeutics, Inc.
    Jun 16, 2026 – Jul 1, 2026

    Director

    No common-stock holding reported on a purchase, sale, gift or withholding line.

  • HLXCHelix Acquisition Corp. III
    Jan 22, 2026 – Jan 26, 2026

    Chairperson and CEO

    No common-stock holding reported on a purchase, sale, gift or withholding line.

Transaction history

All 11 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 10, 2026BLSMOpen-market purchaseCode P · indirect312,500$5.0M@ $16.00Form 4
Aug 10, 2026BLSMConversion of derivativeCode C · indirect1,701,541—Form 4
Aug 10, 2026BLSMConversion of derivativeCode C · indirect1,599,993—Form 4
Aug 6, 2026BLSMGrant or awardCode A · direct23,904—Form 4
Jul 1, 2026BBOTDirectorOther acquisition or dispositionCode J · indirect130,865—Form 4
Jul 1, 2026BBOTDirectorOther acquisition or dispositionCode J · indirect1,704,862—Form 4
Jul 1, 2026BBOTDirectorOther acquisition or dispositionCode J · indirect2,692,459—Form 4
Jul 1, 2026BBOTDirectorOther acquisition or dispositionCode J · indirect4,528,186—Form 4
Jun 16, 2026BBOTGrant or awardCode A · direct31,675—Form 4
Jan 26, 2026HLXCChairperson and CEOGrant or awardCode A · indirect497,500$5.0M@ $10.00Form 4
Jan 22, 2026HLXCChairperson and CEOOther acquisition or dispositionCode J · indirect718,750—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.