MetaCap

Insmed Insider Trades

NASDAQ: INSMHealth CareBiotechnology: Pharmaceutical PreparationsUSD

100.60+0.12 (+0.12%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
62 · $83.67M
Shares bought / sold
0 / 635.09K
Net activity
Net selling $83.7 million

Insmed insider activity

Over the last 12 months, Insmed insiders reported 100 transactions on SEC Form 4: 0 open-market purchases and 62 sales. Insiders bought $0 and sold $83.7 million worth of stock, for net insider selling of $83.7 million. The largest seller was Adsett Roger, with $47.4 million in reported sales.

The most recent filing shows Brennan David R (Director) selling 25,000 shares at $124.00 on Sep 9, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put INSM's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

INSM insider transactions

Insmed insider transactions
DateInsiderTypeSharesValueFiling
Sep 9, 2026Brennan David RDirectorSale25,000$3.10MForm 4
Aug 17, 2026SHAROKY MELVIN MDDirectorSale5,000$637.65KForm 4
Aug 10, 2026Adsett RogerChief Operating OfficerSale239,850$31.96MForm 4
Aug 10, 2026Adsett RogerChief Operating OfficerOption exercise80,970$2.47MForm 4
Aug 10, 2026Adsett RogerChief Operating OfficerOption exercise76,600$1.31MForm 4
Aug 10, 2026Adsett RogerChief Operating OfficerOption exercise82,280$1.12MForm 4
Aug 6, 2026Flammer Martina M.D.Chief Medical OfficerSale18,278$2.37MForm 4
Aug 6, 2026Flammer Martina M.D.Chief Medical OfficerSale8,895$1.13MForm 4
Aug 6, 2026Flammer Martina M.D.Chief Medical OfficerOption exercise8,895$229.76KForm 4
Aug 6, 2026Flammer Martina M.D.Chief Medical OfficerOption exercise18,278$346.37KForm 4
Jul 23, 2026Lewis WilliamChair and CEOSale5,872$624.96KForm 4
Jul 23, 2026Lewis WilliamChair and CEOSale4,828$509.93KForm 4
Jul 23, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
Jul 23, 2026Lewis WilliamChair and CEOOption exercise6,260$190.68KForm 4
Jul 9, 2026Lewis WilliamChair and CEOSale3,359$398.11KForm 4
Jul 9, 2026Lewis WilliamChair and CEOSale2,335$274.64KForm 4
Jul 9, 2026Lewis WilliamChair and CEOSale5,005$583.33KForm 4
Jul 9, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
Jul 9, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
Jul 6, 2026Flammer Martina M.D.Chief Medical OfficerSale7,448$823.75KForm 4
Jul 6, 2026Flammer Martina M.D.Chief Medical OfficerSale4,854$529.18KForm 4
Jul 6, 2026Flammer Martina M.D.Chief Medical OfficerOption exercise4,357$86.01KForm 4
Jul 6, 2026Flammer Martina M.D.Chief Medical OfficerOption exercise7,945$231.44KForm 4
Jun 25, 2026Lewis WilliamChair and CEOSale1,292$137.30KForm 4
Jun 25, 2026Lewis WilliamChair and CEOSale2,456$258.54KForm 4
Jun 25, 2026Lewis WilliamChair and CEOSale3,723$388.23KForm 4
Jun 25, 2026Lewis WilliamChair and CEOSale1,836$189.29KForm 4
Jun 25, 2026Lewis WilliamChair and CEOSale12,091$1.24MForm 4
Jun 25, 2026Lewis WilliamChair and CEOOption exercise8,880$152.38KForm 4
Jun 25, 2026Lewis WilliamChair and CEOOption exercise12,518$381.30KForm 4
Jun 23, 2026Butera SamueleSVP, GM, Global RespiratoryAward7,342—Form 4
Jun 22, 2026Smith Michael AlexanderChief Legal OfficerSale1,806$173.05KForm 4
Jun 8, 2026Lewis WilliamChair and CEOSale6,515$612.61KForm 4
Jun 5, 2026Flammer Martina M.D.Chief Medical OfficerSale1,858$192.82KForm 4
Jun 3, 2026Flammer Martina M.D.Chief Medical OfficerSale2,566$262.42KForm 4
Jun 3, 2026Lewis WilliamChair and CEOSale7,605$777.76KForm 4
Jun 3, 2026Smith Michael AlexanderChief Legal OfficerSale2,159$220.80KForm 4
Jun 3, 2026Bonstein SaraChief Financial OfficerSale2,404$245.86KForm 4
Jun 3, 2026Adsett RogerChief Operating OfficerSale2,370$242.38KForm 4
May 22, 2026Smith Michael AlexanderChief Legal OfficerSale6,149$666.98KForm 4
May 18, 2026Lewis WilliamChair and CEOSale7,975$853.09KForm 4
May 18, 2026Lewis WilliamChair and CEOSale11,836$1.26MForm 4
May 18, 2026Lewis WilliamChair and CEOSale5,753$605.91KForm 4
May 18, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
May 18, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
May 14, 2026Flammer Martina M.D.Chief Medical OfficerSale10,479$1.23MForm 4
May 13, 2026Lewis WilliamChair and CEOSale13,283$1.54MForm 4
May 13, 2026LEE LEODirectorAward3,305—Form 4
May 13, 2026Flammer Martina M.D.Chief Medical OfficerSale3,384$393.15KForm 4
May 13, 2026Flammer Martina M.D.Chief Medical OfficerSale4,470$504.04KForm 4
May 13, 2026Desjardins ClarissaDirectorAward3,305—Form 4
May 13, 2026Smith Michael AlexanderChief Legal OfficerSale4,109$477.38KForm 4
May 13, 2026Brennan David RDirectorAward3,305—Form 4
May 13, 2026SHAROKY MELVIN MDDirectorAward3,305—Form 4
May 13, 2026Bonstein SaraChief Financial OfficerSale8,272$961.04KForm 4
May 13, 2026Adsett RogerChief Operating OfficerSale5,837$678.14KForm 4
May 13, 2026SCHAFER CAROLDirectorAward3,305—Form 4
May 13, 2026ANDERSON ELIZABETH MDirectorAward3,305—Form 4
May 11, 2026Flammer Martina M.D.Chief Medical OfficerSale830$83.98KForm 4
May 11, 2026Flammer Martina M.D.Chief Medical OfficerSale12,119$1.22MForm 4
May 11, 2026Flammer Martina M.D.Chief Medical OfficerOption exercise12,949$221.04KForm 4
May 4, 2026Lewis WilliamChair and CEOSale381$53.19KForm 4
May 4, 2026Lewis WilliamChair and CEOSale1,247$173.45KForm 4
May 4, 2026Lewis WilliamChair and CEOSale2,721$375.12KForm 4
May 4, 2026Lewis WilliamChair and CEOSale5,318$728.62KForm 4
May 4, 2026Lewis WilliamChair and CEOSale599$80.97KForm 4
May 4, 2026Lewis WilliamChair and CEOSale433$58.10KForm 4
May 4, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
May 4, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
Apr 16, 2026Lewis WilliamChair and CEOSale825$120.28KForm 4
Apr 16, 2026Lewis WilliamChair and CEOSale2,255$326.21KForm 4
Apr 16, 2026Lewis WilliamChair and CEOSale5,373$772.69KForm 4
Apr 16, 2026Lewis WilliamChair and CEOSale2,246$321.16KForm 4
Apr 16, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
Apr 16, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
Apr 6, 2026Lewis WilliamChair and CEOSale1,434$235.19KForm 4
Apr 6, 2026Lewis WilliamChair and CEOSale8,478$1.38MForm 4
Apr 6, 2026Lewis WilliamChair and CEOSale787$127.28KForm 4
Apr 6, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
Apr 6, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
Apr 1, 2026Adsett RogerChief Operating OfficerSale62,344$10.28MForm 4
Apr 1, 2026Adsett RogerChief Operating OfficerSale19,001$3.12MForm 4
Apr 1, 2026Adsett RogerChief Operating OfficerSale6,715$1.10MForm 4
Apr 1, 2026Adsett RogerChief Operating OfficerOption exercise88,060$1.28MForm 4
Mar 30, 2026Smith Michael AlexanderChief Legal OfficerSale19,638$2.96MForm 4
Mar 30, 2026Smith Michael AlexanderChief Legal OfficerOption exercise13,989$390.15KForm 4
Mar 30, 2026Smith Michael AlexanderChief Legal OfficerOption exercise5,649$96.43KForm 4
Mar 19, 2026Lewis WilliamChair and CEOSale4,533$653.25KForm 4
Mar 19, 2026Lewis WilliamChair and CEOSale4,537$650.70KForm 4
Mar 19, 2026Lewis WilliamChair and CEOSale1,629$231.59KForm 4
Mar 19, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
Mar 19, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
Mar 5, 2026Lewis WilliamChair and CEOSale2,128$313.97KForm 4
Mar 5, 2026Lewis WilliamChair and CEOSale3,899$571.83KForm 4
Mar 5, 2026Lewis WilliamChair and CEOSale2,589$376.10KForm 4
Mar 5, 2026Lewis WilliamChair and CEOSale2,083$300.43KForm 4
Mar 5, 2026Lewis WilliamChair and CEOOption exercise4,440$76.19KForm 4
Mar 5, 2026Lewis WilliamChair and CEOOption exercise6,259$190.65KForm 4
Mar 3, 2026SHAROKY MELVIN MDDirectorGift100—Form 4
Feb 25, 2026SHAROKY MELVIN MDDirectorGift1,072—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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