Martina Flammer, M.D. Insider Trading Activity

Corporate InsiderChief Medical Officer · CIK 1796960

44

Total trades

$50.2M

Total volume

May 14, 2026

Last activity

INSM

INSMED Inc

Martina Flammer, M.D. has been net-selling over the last 12 months with 0 purchases and 43 sales across 1 company.

INSM is the most-traded position with 43 trades. The largest single transaction was a sale of INSM for $9.3M on Sep 2, 2025.

Performance Scorecard

Forward stock performance after each transaction by Martina Flammer, M.D.. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days—+3.6%64%39
90 days—-6.2%74%39
120 days—+8.0%74%39

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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INSM · INSMED Inc

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEROLE
May 14, 2026INSMSell10,479$117.54$1.2MChief Medical Officer
May 13, 2026INSMSell3,384$116.18$393KChief Medical Officer
May 13, 2026INSMSell4,470$112.76$504KChief Medical Officer
May 11, 2026INSMSell12,119$100.35$1.2MChief Medical Officer
May 11, 2026INSMSell830$101.18$84KChief Medical Officer
Feb 5, 2026INSMSell869$152.44$132KChief Medical Officer
Feb 3, 2026INSMSell795$155.77$124KChief Medical Officer
Feb 2, 2026INSMSell100$156.86$16KChief Medical Officer
Feb 2, 2026INSMSell563$152.06$86KChief Medical Officer
Feb 2, 2026INSMSell928$153.16$142KChief Medical Officer
Feb 2, 2026INSMSell3,349$154.56$518KChief Medical Officer
Feb 2, 2026INSMSell3,042$155.46$473KChief Medical Officer
Jan 9, 2026INSMSell1,887$186.19$351KChief Medical Officer
Jan 8, 2026INSMSell3,251$174.17$566KChief Medical Officer
Jan 8, 2026INSMSell1,660$173.87$289KChief Medical Officer
Jan 7, 2026INSMSell1,434$175.84$252KChief Medical Officer
Jan 6, 2026INSMSell957$175.01$167KChief Medical Officer
Jan 6, 2026INSMSell1,615$173.33$280KChief Medical Officer
Jan 6, 2026INSMSell4,783$173.47$830KChief Medical Officer
Jan 6, 2026INSMSell2,830$174.21$493KChief Medical Officer
Jan 5, 2026INSMSell2,836$171.19$485KChief Medical Officer
Jan 5, 2026INSMSell2,799$169.29$474KChief Medical Officer
Jan 5, 2026INSMSell3,205$170.61$547KChief Medical Officer
Jan 5, 2026INSMSell286$171.92$49KChief Medical Officer
Jan 5, 2026INSMSell1,820$173.45$316KChief Medical Officer
Jan 5, 2026INSMSell655$174.28$114KChief Medical Officer
Jan 5, 2026INSMSell702$175.73$123KChief Medical Officer
Dec 1, 2025INSMSell5,886$207.03$1.2MChief Medical Officer
Dec 1, 2025INSMSell1,450$205.98$299KChief Medical Officer
Dec 1, 2025INSMSell1,559$207.73$324KChief Medical Officer
Nov 11, 2025INSMSell5,467$188.38$1.0MChief Medical Officer
Nov 11, 2025INSMSell12,224$189.36$2.3MChief Medical Officer
Nov 11, 2025INSMSell10,622$190.33$2.0MChief Medical Officer
Nov 11, 2025INSMSell2,913$191.04$556KChief Medical Officer
Sep 2, 2025INSMSell5,877$142.03$835KChief Medical Officer
Sep 2, 2025INSMSell19,066$141.27$2.7MChief Medical Officer
Sep 2, 2025INSMSell35,245$143.16$5.0MChief Medical Officer
Sep 2, 2025INSMSell28,063$144.05$4.0MChief Medical Officer
Sep 2, 2025INSMSell63,782$145.33$9.3MChief Medical Officer
Sep 2, 2025INSMSell34,615$146.05$5.1MChief Medical Officer
Aug 4, 2025INSMSell8,715$109.50$954KChief Medical Officer
Jun 11, 2025INSMSell19,423$94.50$1.8MChief Medical Officer
Jun 10, 2025INSMSell25,740$88.64$2.3MChief Medical Officer
Jun 3, 2025INSMSell1,686$71.50$121KChief Medical Officer

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
INSMINSMED Inc44$50.2M

Other insiders at INSMED Inc

7 other tracked filers at INSM.

William Lewis

CEO

86

Trades

Michael Alexander Smith

Chief Legal Officer

30

Trades

Schaeffer Orlov S Nicole

Chief People Strategy Officer

23

Trades

Bonstein Sara

CFO

18

Trades

Adsett Roger

COO

13

Trades

Leo Lee

Director

5

Trades

Melvin Sharoky MD

Director

4

Trades