SEC Form 4 reporting owner

Sumer Jacquelyn L

Sumer Jacquelyn L has filed 5 Form 4 transactions reported between December 18, 2025 and June 30, 2026, as Chief Legal Officer of Cullinan Therapeutics, Inc..

Name as filed: SUMER JACQUELYN L

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$137K
3 lines
Companies
1
with Form 4 filings
Latest transaction
Jun 30, 2026
transaction date

Roles and reported holdings

  • CGEMCullinan Therapeutics, Inc.
    Dec 18, 2025 – Jun 30, 2026

    Chief Legal Officer

    Held directly128,089 sh as of Feb 24, 2026 · Form 4

    24 months: $137K sold

Transaction history

All 5 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jun 30, 2026CGEMChief Legal OfficerGrant or awardCode A · direct2,470$21K@ $8.60Form 4
Feb 24, 2026CGEMChief Legal OfficerOpen-market saleCode S · directAlso reported by Michaelson Jennifer3,601$52K@ $14.47Form 4
Feb 20, 2026CGEMChief Legal OfficerOpen-market saleCode S · directAlso reported by Michaelson Jennifer3,742$51K@ $13.62Form 4
Feb 18, 2026CGEMChief Legal OfficerGrant or awardCode A · direct230,000—Form 4
Dec 18, 2025CGEMChief Legal OfficerOpen-market saleCode S · direct3,480$34K@ $9.67Form 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.