13F Pro

SEC Form 4 reporting owner

Flammer Martina M.D.

Flammer Martina M.D. has filed 43 Form 4 transactions reported between January 2, 2026 and August 6, 2026, as Chief Medical Officer of INSMED Inc.

Name as filed: Flammer Martina M.D.

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$12.1M
31 lines
Companies
1
with Form 4 filings
Latest transaction
Aug 6, 2026
transaction date

Roles and reported holdings

  • INSMINSMED Inc
    Jan 2, 2026 – Aug 6, 2026

    Chief Medical Officer

    Held directly60,486 sh as of Jul 6, 2026 · Form 4

    24 months: $12.1M sold

Transaction history

All 43 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 6, 2026INSMChief Medical OfficerOption exerciseCode M · direct8,895$230K@ $25.83Form 4
Aug 6, 2026INSMChief Medical OfficerOption exerciseCode M · direct18,278$346K@ $18.95Form 4
Jul 6, 2026INSMChief Medical OfficerOpen-market saleCode S · direct7,448$824K@ $110.60Form 4
Jul 6, 2026INSMChief Medical OfficerOpen-market saleCode S · direct4,854$529K@ $109.02Form 4
Jul 6, 2026INSMChief Medical OfficerOption exerciseCode M · direct4,357$86K@ $19.74Form 4
Jul 6, 2026INSMChief Medical OfficerOption exerciseCode M · direct7,945$231K@ $29.13Form 4
Jun 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct1,858$193K@ $103.78Form 4
Jun 3, 2026INSMChief Medical OfficerOpen-market saleCode S · direct2,566$262K@ $102.27Form 4
May 14, 2026INSMChief Medical OfficerOpen-market saleCode S · direct10,479$1.2M@ $117.54Form 4
May 13, 2026INSMChief Medical OfficerOpen-market saleCode S · direct3,384$393K@ $116.18Form 4
May 13, 2026INSMChief Medical OfficerOpen-market saleCode S · direct4,470$504K@ $112.76Form 4
May 11, 2026INSMChief Medical OfficerOpen-market saleCode S · direct830$84K@ $101.18Form 4
May 11, 2026INSMChief Medical OfficerOpen-market saleCode S · direct12,119$1.2M@ $100.35Form 4
May 11, 2026INSMChief Medical OfficerOption exerciseCode M · direct12,949$221K@ $17.07Form 4
Feb 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct869$132K@ $152.44Form 4
Feb 3, 2026INSMChief Medical OfficerOpen-market saleCode S · direct795$124K@ $155.77Form 4
Feb 2, 2026INSMChief Medical OfficerOpen-market saleCode S · direct100$16K@ $156.86Form 4
Feb 2, 2026INSMChief Medical OfficerOpen-market saleCode S · direct3,042$473K@ $155.46Form 4
Feb 2, 2026INSMChief Medical OfficerOpen-market saleCode S · direct3,349$518K@ $154.56Form 4
Feb 2, 2026INSMChief Medical OfficerOpen-market saleCode S · direct928$142K@ $153.16Form 4
Feb 2, 2026INSMChief Medical OfficerOpen-market saleCode S · direct563$86K@ $152.06Form 4
Feb 2, 2026INSMChief Medical OfficerOption exerciseCode M · direct7,982$525K@ $65.72Form 4
Jan 9, 2026INSMChief Medical OfficerOpen-market saleCode S · direct1,887$351K@ $186.19Form 4
Jan 8, 2026INSMChief Medical OfficerOpen-market saleCode S · direct3,251$566K@ $174.17Form 4
Jan 8, 2026INSMChief Medical OfficerOpen-market saleCode S · direct1,660$289K@ $173.87Form 4
Jan 7, 2026INSMChief Medical OfficerOpen-market saleCode S · direct1,434$252K@ $175.84Form 4
Jan 6, 2026INSMChief Medical OfficerOpen-market saleCode S · direct1,615$280K@ $173.33Form 4
Jan 6, 2026INSMChief Medical OfficerOpen-market saleCode S · direct957$167K@ $175.01Form 4
Jan 6, 2026INSMChief Medical OfficerOpen-market saleCode S · direct2,830$493K@ $174.21Form 4
Jan 6, 2026INSMChief Medical OfficerOpen-market saleCode S · direct4,783$830K@ $173.47Form 4
Jan 6, 2026INSMChief Medical OfficerOption exerciseCode M · direct8,570$227K@ $26.43Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct702$123K@ $175.73Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct655$114K@ $174.28Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct1,820$316K@ $173.45Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct286$49K@ $171.92Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct2,836$485K@ $171.19Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct3,205$547K@ $170.61Form 4
Jan 5, 2026INSMChief Medical OfficerOpen-market saleCode S · direct2,799$474K@ $169.29Form 4
Jan 5, 2026INSMChief Medical OfficerOption exerciseCode M · direct7,945$231K@ $29.13Form 4
Jan 5, 2026INSMChief Medical OfficerOption exerciseCode M · direct4,358$86K@ $19.74Form 4
Jan 2, 2026INSMChief Medical OfficerGrant or awardCode A · direct31,280—Form 4
Jan 2, 2026INSMChief Medical OfficerGrant or awardCode A · direct5,645—Form 4
Jan 2, 2026INSMChief Medical OfficerGrant or awardCode A · direct5,998—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.