13F Pro

SEC Form 4 reporting owner

Ben Yong

Ben Yong has filed 7 Form 4 transactions reported between March 10, 2026 and September 14, 2026, as a reporting owner of Corbus Pharmaceuticals Holdings, Inc. and Chief Med & Dev Officer of BridgeBio Oncology Therapeutics, Inc..

Name as filed: Ben Yong

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$16K
1 lines
Companies
2
with Form 4 filings
Latest transaction
Sep 14, 2026
transaction date

Roles and reported holdings

  • CRBPCorbus Pharmaceuticals Holdings, Inc.
    May 19, 2026 – Sep 14, 2026

    Reporting owner

    Held directly9,383 sh as of Sep 14, 2026 · Form 4

    24 months: $16K sold

  • BBOTBridgeBio Oncology Therapeutics, Inc.
    Mar 10, 2026 – Jul 1, 2026

    Chief Med & Dev Officer

    Held directly44,576 sh as of Jul 1, 2026 · Form 4

Transaction history

All 7 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 14, 2026CRBPOpen-market saleCode S · direct2,000$16K@ $7.84Form 4
Jul 1, 2026BBOTChief Med & Dev OfficerShares withheld for tax or exercise priceCode F · direct1,047$8K@ $7.80Form 4
May 19, 2026CRBPGrant or awardCode A · direct12,300—Form 4
May 19, 2026CRBPGrant or awardCode A · direct3,800—Form 4
Apr 1, 2026BBOTChief Med & Dev OfficerShares withheld for tax or exercise priceCode F · direct1,047$9K@ $9.03Form 4
Mar 10, 2026BBOTChief Med & Dev OfficerGrant or awardCode A · direct210,000—Form 4
Mar 10, 2026BBOTChief Med & Dev OfficerGrant or awardCode A · direct46,670—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.