13F Pro

SEC Form 4 reporting owner

Deep Track Biotechnology Master Fund, Ltd.

Deep Track Biotechnology Master Fund, Ltd. has filed 6 Form 4 transactions reported between February 6, 2026 and August 6, 2026, as a reporting owner of Attovia Therapeutics, Inc., a reporting owner of LB PHARMACEUTICALS INC and a reporting owner of DYNAVAX TECHNOLOGIES CORP.

Name as filed: Deep Track Biotechnology Master Fund, Ltd.

Open-market buys, 24 mo
$20.0M
3 lines
Open-market sales, 24 mo
None
reported
Companies
3
with Form 4 filings
Latest transaction
Aug 6, 2026
transaction date

Roles and reported holdings

  • ATTOAttovia Therapeutics, Inc.
    Aug 6, 2026

    Reporting owner

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

  • LBRXLB PHARMACEUTICALS INC
    Feb 6, 2026 – Jul 30, 2026

    Reporting owner

    Held directly664,649 sh as of Jul 30, 2026 · Form 4
    Held indirectly (latest line)93,925 sh as of Feb 6, 2026 · Form 4

    24 months: $20.0M bought

  • DVAXDYNAVAX TECHNOLOGIES CORP
    Feb 10, 2026

    Reporting owner

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

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 6, 2026ATTOConversion of derivativeCode C · direct18,181,818—Form 4
Aug 6, 2026ATTOConversion of derivativeCode C · direct1,957,138—Form 4
Jul 30, 2026LBRXOpen-market purchaseCode P · direct286,205$10.0M@ $34.94Form 4
Feb 10, 2026DVAXTender in change of controlCode U · direct15,726,349—Form 4
Feb 6, 2026LBRXOpen-market purchaseCode P · indirect93,925$2.0M@ $21.17Form 4
Feb 6, 2026LBRXOpen-market purchaseCode P · direct378,444$8.0M@ $21.17Form 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.