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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
May 17, 2023 (view filing)May 15-162 daysBonstein SaraChief Financial OfficerSSale−3.82K$18.95−$72.4K−3.1%117.6K after2 lots
May 17, 2023 (view filing)May 15-162 daysFlammer Martina M.D.Chief Medical OfficerSSale−4.29K$18.94−$81.3K−3.6%114.9K after2 lots
May 17, 2023 (view filing)May 15-172 daysLewis WilliamChair and CEOSSale−16.9K$18.58−$313.3K−4.7%341.3K after3 lots
May 17, 2023 (view filing)May 15-172 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−5.02K$18.62−$93.4K−5.1%93.5K after3 lots
May 17, 2023 (view filing)May 15-172 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−3.63K$18.77−$68.2K−4.5%77.1K after3 lots
May 17, 2023 (view filing)May 15-172 daysWise John DraytonChief Commercial OfficerSSale−2.89K$18.44−$53.2K−2.7%106.0K after3 lots
May 26, 2023 (view filing)May 251 dayWise John DraytonChief Commercial OfficerSSale−3.37K$18.95−$63.8K−3.2%102.7K after
Jun 15, 2023 (view filing)Jun 132 daysAdsett RogerChief Operating OfficerSSale−8.98K$19.32−$173.5K−5.6%151.4K after10b5-1
Jun 15, 2023 (view filing)Jun 132 daysFlammer Martina M.D.Chief Medical OfficerSSale−8.87K$19.27−$170.9K−7.7%106.0K after10b5-1
Jul 13, 2023 (view filing)Jul 112 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−740$20.18−$14.9K−1.0%77.1K after
Oct 31, 2023 (view filing)Oct 274 daysLewis WilliamChair and CEOSSale−112.0K$24.08−$2.70M−32.4%233.9K after6 lots10b5-1
Dec 22, 2023 (view filing)Dec 22Same dayBonstein SaraChief Financial OfficerSSale−13.2K$30.00−$396.0K−11.1%105.2K after10b5-1
Dec 22, 2023 (view filing)Dec 22Same dayFlammer Martina M.D.Chief Medical OfficerSSale−28.3K$30.00−$849.3K−21.1%106.0K after10b5-1
Jan 2, 2024 (view filing)Dec 28, 20235 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−22.3K$32.00−$713.2K−19.1%94.5K after10b5-1
Jan 5, 2024 (view filing)Jan 5Same dayAdsett RogerChief Operating OfficerSSale−3.04K$29.21−$88.9K−1.9%161.2K after
Jan 5, 2024 (view filing)Jan 5Same dayFlammer Martina M.D.Chief Medical OfficerSSale−1.39K$29.21−$40.5K−1.2%117.5K after
Jan 5, 2024 (view filing)Jan 5Same dayLewis WilliamChair and CEOSSale−6.98K$29.26−$204.2K−1.8%373.5K after
Jan 5, 2024 (view filing)Jan 5Same daySchaeffer Orlov S NicoleChief People Strategy OfficerSSale−1.46K$29.28−$42.7K−1.4%105.1K after
Jan 5, 2024 (view filing)Jan 5Same daySmith Michael AlexanderGeneral Counsel, Senior VPSSale−627$29.31−$18.4K−0.7%88.7K after
Jan 5, 2024 (view filing)Jan 32 daysWise John DraytonChief Commercial OfficerSSaleStock Option (right to buy)−20.1K$29.19−$585.9K−16.2%104.0K after10b5-1
Jan 5, 2024 (view filing)Jan 5Same dayWise John DraytonChief Commercial OfficerSSale−1.17K$29.32−$34.2K−1.0%115.7K after10b5-1
Jan 10, 2024 (view filing)Jan 8-92 daysLewis WilliamChair and CEOSSale−55.0K$29.32−$1.61M−13.1%363.7K after3 lots10b5-1
Jan 11, 2024 (view filing)Jan 9-102 daysAdsett RogerChief Operating OfficerSSale−7.37K$29.08−$214.4K−4.6%153.8K after2 lots10b5-1
Jan 11, 2024 (view filing)Jan 92 daysBonstein SaraChief Financial OfficerSSale−4.50K$29.18−$131.2K−3.8%114.1K after
Jan 11, 2024 (view filing)Jan 9-102 daysFlammer Martina M.D.Chief Medical OfficerSSale−5.96K$28.99−$172.8K−5.1%111.6K after2 lots10b5-1
Jan 11, 2024 (view filing)Jan 92 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−3.67K$28.85−$105.8K−3.5%102.0K after2 lots10b5-1
Jan 11, 2024 (view filing)Jan 92 daysSmith Michael AlexanderGeneral Counsel, Senior VPSSale−2.37K$28.76−$68.2K−2.7%86.4K after
Jan 11, 2024 (view filing)Jan 92 daysWise John DraytonChief Commercial OfficerSSale−1.86K$28.78−$53.6K−1.6%113.8K after
Jan 12, 2024 (view filing)Jan 12Same dayAdsett RogerChief Operating OfficerSSale−5.25K$28.63−$150.3K−3.4%148.6K after10b5-1
Jan 12, 2024 (view filing)Jan 12Same dayFlammer Martina M.D.Chief Medical OfficerSSale−4.67K$28.63−$133.6K−4.2%106.9K after10b5-1
May 15, 2024 (view filing)May 141 dayAdsett RogerChief Operating OfficerSSale−7.86K$25.50−$200.4K−4.8%155.2K after
May 15, 2024 (view filing)May 141 dayBonstein SaraChief Financial OfficerSSale−11.1K$25.32−$280.7K−8.6%117.5K after
May 15, 2024 (view filing)May 141 dayFlammer Martina M.D.Chief Medical OfficerSSale−10.6K$25.47−$271.0K−8.8%110.8K after
May 15, 2024 (view filing)May 141 dayLewis WilliamChair and CEOSSale−22.2K$25.52−$566.5K−5.5%384.1K after
May 15, 2024 (view filing)May 141 daySchaeffer Orlov S NicoleChief People Strategy OfficerSSale−6.51K$25.53−$166.1K−5.6%108.8K after
May 15, 2024 (view filing)May 141 daySmith Michael AlexanderChief Legal OfficerSSale−5.09K$25.40−$129.4K−5.1%94.6K after
May 15, 2024 (view filing)May 141 dayWise John DraytonChief Commercial OfficerSSale−5.09K$25.47−$129.6K−4.0%123.3K after
May 17, 2024 (view filing)May 17Same dayAdsett RogerChief Operating OfficerSSale−5.95K$25.09−$149.2K−3.8%149.3K after10b5-1
May 17, 2024 (view filing)May 17Same dayFlammer Martina M.D.Chief Medical OfficerSSale−4.64K$25.09−$116.5K−4.2%106.1K after10b5-1
May 30, 2024 (view filing)May 28-292 daysBonstein SaraChief Financial OfficerSSale−241.3K$50.00−$12.1M−67.3%117.5K after2 lots10b5-1
May 30, 2024 (view filing)May 28-302 daysFlammer Martina M.D.Chief Medical OfficerSSale−125.0K$50.53−$6.32M−54.1%106.1K after2 lots10b5-1
May 30, 2024 (view filing)May 282 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−27.5K$49.53−$1.36M−20.2%108.8K after10b5-1
May 30, 2024 (view filing)May 282 daysSmith Michael AlexanderChief Legal OfficerSSale−44.7K$49.53−$2.22M−33.5%88.8K after10b5-1
May 30, 2024 (view filing)May 282 daysWise John DraytonChief Commercial OfficerSSale−7.85K$49.79−$390.9K−6.1%121.7K after2 lots10b5-1
Jun 5, 2024 (view filing)Jun 32 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−55.0K$55.33−$3.04M−33.6%108.8K after10b5-1
Jun 12, 2024 (view filing)Jun 102 daysFlammer Martina M.D.Chief Medical OfficerSSale−21.2K$60.00−$1.27M−16.6%106.1K after10b5-1
Aug 14, 2024 (view filing)Aug 122 daysSchaeffer Orlov S NicoleChief People Strategy OfficerSSale−9.47K$72.49−$686.4K−8.6%100.1K after
Aug 14, 2024 (view filing)Aug 122 daysSmith Michael AlexanderChief Legal OfficerSSale−88.1K$72.96−$6.43M−49.8%88.7K after2 lots
Sep 10, 2024 (view filing)Sep 64 daysFlammer Martina M.D.Chief Medical OfficerSSale−149.0K$71.23−$10.6M−58.4%106.1K after3 lots10b5-1
Sep 10, 2024 (view filing)Sep 10Same daySchaeffer Orlov S NicoleChief People Strategy OfficerSSale−37.6K$71.50−$2.69M−27.3%100.1K after2 lots10b5-1