Skip to main content

INSMED Inc

INSM
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001104506

In the last 90 days, INSMED Inc insiders filed 0 open-market purchases and 7 sales; 667 institutions reported holding it in 13F filings for Q2 2026, worth $23.8B in total; superinvestors Maverick Capital and Duquesne Family Office hold it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by INSMED Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
7 filings
5 insiders, $42.9M in total
Insiders trading
5
Net value
−$42.9M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for INSMED Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for INSMED Inc
NameTitleLast reported holdingLast filingFilings, past year
Brennan David RDirector39,238Sep 11, 20264
Sharoky Melvin MDDirector0IndirectAug 19, 20265
Adsett RogerChief Operating Officer98,744Aug 12, 20267
Flammer Martina M.D.Chief Medical Officer60,486Aug 7, 202612
Lewis WilliamChair and CEO259,058Jul 24, 202621
Smith Michael AlexanderChief Legal Officer37,648Jun 24, 202610
Butera SamueleSVP, GM, Global Respiratory7,342Jun 24, 20261
Bonstein SaraChief Financial Officer69,082Jun 5, 20265
Schafer CarolDirector66,622May 15, 20261
Lee LeoDirector57,971May 15, 20262
Anderson Elizabeth MDirector62,034May 15, 20263
Desjardins ClarissaDirector70,312May 15, 20261
McGirr David W JDirector53,400IndirectFeb 11, 20261
Schaeffer Orlov S NicoleChief People Strategy Officer41,754Jan 6, 20262
Wise John DraytonChief Commercial Officer133,015Feb 7, 20250
Altomari AlfredDirector69,495May 15, 20240
Engelsen Steinar JDirector320,802Nov 3, 20210
Soriano JohnChief Compliance Officer35,204Sep 9, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 9, 2021 (view filing)Sep 72 daysSoriano JohnChief Compliance OfficerSSale−17.3K$28.20−$489.2K−33.0%35.2K after
Oct 1, 2021 (view filing)Sep 301 dayLewis WilliamChair and CEOSSale−96.6K$27.36−$2.64M−32.3%202.2K after2 lots
Nov 3, 2021 (view filing)Nov 12 daysEngelsen Steinar JDirectorPPurchase+14.2K$30.14+$429.0K+4.6%320.8K after
Nov 3, 2021 (view filing)Nov 12 daysBrennan David RDirectorPPurchase+10.0K$30.15+$301.5K+14.1%80.9K after
Nov 3, 2021 (view filing)Nov 12 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−61.0K$30.28−$1.85M−54.2%51.5K after2 lots
Dec 28, 2021 (view filing)4:08 PM ETDec 23-275 daysLewis WilliamChair and CEOSSale−96.6K$27.97−$2.70M−32.3%202.2K after3 lots
Jan 7, 2022 (view filing)Jan 5-62 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−1.14K$27.06−$30.7K−3.8%28.4K after2 lots
Jan 7, 2022 (view filing)Jan 5-62 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−3.12K$26.78−$83.4K−6.0%48.4K after2 lots
Jan 7, 2022 (view filing)Jan 52 daysFlammer Martina M.D.Chief Medical OfficerSSale−1.42K$27.61−$39.3K−4.1%33.3K after
Jan 7, 2022 (view filing)Jan 5-62 daysLewis WilliamChair and CEOSSale−12.5K$26.92−$335.5K−6.2%189.8K after2 lots
Jan 7, 2022 (view filing)Jan 5-62 daysAdsett RogerChief Operating OfficerSSale−4.83K$27.02−$130.4K−4.4%105.4K after2 lots
Jan 13, 2022 (view filing)Jan 112 daysBonstein SaraChief Financial OfficerSSale−1.15K$25.11−$29.0K−3.1%36.0K after
Jan 13, 2022 (view filing)Jan 112 daysFlammer Martina M.D.Chief Medical OfficerSSale−1.50K$25.11−$37.5K−3.1%46.0K after
Jan 13, 2022 (view filing)Jan 121 dayAdsett RogerChief Operating OfficerSSale−1.22K$24.58−$29.9K−1.0%121.9K after
Jan 13, 2022 (view filing)Jan 112 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−925$25.11−$23.2K−1.6%57.0K after
Jan 13, 2022 (view filing)Jan 112 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−407$25.11−$10.2K−1.1%37.4K after
Jan 13, 2022 (view filing)Jan 112 daysLewis WilliamChair and CEOSSale−2.87K$25.11−$72.1K−1.3%217.6K after
Mar 25, 2022 (view filing)Mar 232 daysLewis WilliamChair and CEOSSale−96.6K$23.16−$2.24M−30.7%217.6K after3 lots
May 13, 2022 (view filing)May 112 daysSharoky Melvin MDDirectorPPurchase+20.0K$17.20+$344.0K+8.2%262.6K after
May 18, 2022 (view filing)May 16-172 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−2.78K$19.53−$54.4K−3.9%68.8K after2 lots
May 18, 2022 (view filing)May 162 daysFlammer Martina M.D.Chief Medical OfficerSSale−1.57K$18.51−$29.1K−2.3%66.4K after
May 18, 2022 (view filing)May 16-172 daysAdsett RogerChief Operating OfficerSSale−3.42K$19.57−$66.8K−2.3%146.0K after2 lots
May 18, 2022 (view filing)May 162 daysBonstein SaraChief Financial OfficerSSale−1.43K$18.51−$26.5K−2.6%54.7K after
May 18, 2022 (view filing)May 16-172 daysLewis WilliamChair and CEOSSale−9.39K$19.52−$183.4K−3.5%255.8K after2 lots
May 18, 2022 (view filing)May 16-172 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−1.49K$19.82−$29.5K−2.9%50.6K after2 lots
Jul 8, 2022 (view filing)Jul 71 dayLewis WilliamChair and CEOSSale−96.6K$23.00−$2.22M−27.3%256.7K after
Jul 12, 2022 (view filing)Jul 12Same daySmith Michael AlexanderGeneral Counsel, Senior VPSSale−941$23.40−$22.0K−1.8%50.5K after
Aug 10, 2022 (view filing)Aug 82 daysLewis WilliamChair and CEOSSale−216.8K$27.84−$6.04M−100.0%0 after4 lots
Aug 12, 2022 (view filing)Aug 102 daysWise John DraytonChief Commercial OfficerSSale−258$27.79−$7.17K−0.3%78.8K after
Nov 2, 2022 (view filing)Oct 312 daysSharoky Melvin MDDirectorPPurchase+20.0K$17.53+$350.6K+7.7%281.0K after
Nov 2, 2022 (view filing)Nov 11 daySharoky Melvin MDDirectorPPurchase+10.0K$17.70+$177.0K+169.5%15.9K after
Nov 2, 2022 (view filing)Oct 312 daysLee LeoDirectorPPurchase+45.0K$17.69+$796.0K+84.5%98.3K after
Nov 22, 2022 (view filing)Nov 22Same dayAdsett RogerChief Operating OfficerSSale−11.9K$18.80−$222.9K−8.1%134.1K after
Nov 22, 2022 (view filing)Nov 22Same dayWise John DraytonChief Commercial OfficerSSale−7.15K$18.84−$134.8K−9.1%71.6K after
Jan 6, 2023 (view filing)Jan 51 daySchaeffer Orlov S NicoleChief People Strategy OfficerSSale−1.45K$19.73−$28.6K−2.1%68.3K after
Jan 6, 2023 (view filing)Jan 51 dayLewis WilliamChair and CEOSSale−7.01K$19.80−$138.8K−2.7%249.7K after
Jan 6, 2023 (view filing)Jan 51 dayAdsett RogerChief Operating OfficerSSale−3.04K$19.75−$60.1K−2.3%131.1K after
Jan 6, 2023 (view filing)Jan 51 dayFlammer Martina M.D.Chief Medical OfficerSSale−1.37K$19.73−$27.1K−2.1%65.1K after
Jan 6, 2023 (view filing)Jan 51 daySmith Michael AlexanderGeneral Counsel, Senior VPSSale−720$19.72−$14.2K−1.4%49.8K after
Jan 6, 2023 (view filing)Jan 51 dayWise John DraytonChief Commercial OfficerSSale−1.16K$19.74−$22.9K−1.6%70.5K after
Jan 12, 2023 (view filing)Jan 102 daysAdsett RogerChief Operating OfficerSSale−3.19K$17.99−$57.5K−2.3%135.5K after
Jan 12, 2023 (view filing)Jan 102 daysBonstein SaraChief Financial OfficerSSale−2.86K$18.12−$51.8K−4.1%66.0K after
Jan 12, 2023 (view filing)Jan 102 daysFlammer Martina M.D.Chief Medical OfficerSSale−3.44K$18.06−$62.1K−4.5%72.8K after
Jan 12, 2023 (view filing)Jan 102 daysLewis WilliamChair and CEOSSale−6.99K$18.00−$125.9K−2.6%265.1K after
Jan 12, 2023 (view filing)Jan 102 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−2.44K$17.95−$43.7K−3.3%72.2K after
Jan 12, 2023 (view filing)Jan 102 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−1.84K$17.93−$32.9K−3.3%54.3K after
Jan 12, 2023 (view filing)Jan 102 daysWise John DraytonChief Commercial OfficerSSale−779$17.96−$14.0K−1.0%77.3K after
May 17, 2023 (view filing)May 152 daysSharoky Melvin MDDirectorPPurchase+10.0K$19.29+$192.9K+3.5%298.6K after
May 17, 2023 (view filing)May 152 daysSharoky Melvin MDDirectorPPurchase+10.0K$19.29+$192.9KNew position10.0K after
May 17, 2023 (view filing)May 15-172 daysAdsett RogerChief Operating OfficerSSale−6.82K$18.66−$127.2K−4.1%160.3K after3 lots