The Filings Report

Insmed, Inc. insider trading

INSMfinancial statementsForm 4 filings on EDGAR560 transactions since Nov 1, 2024

From August 4, 2026 to November 1, 2026, 0 insiders at Insmed, Inc. bought $0 of stock in the open market, and 4 sold $39M. Officers and directors accounted for $0 of purchases and $39M of sales. The last reported transaction was an award by Koppikar Utpal on October 19, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through October 20, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

INSM daily priceSplit-adjusted prices in US dollars

Bought $0Sold $39MAug 4, 2026 – Nov 1, 2026

Oct 30, 2026O $113.60 · H $116.37 · L $111.97 · C $112.58Bought $0 (0)Sold $0 (0)
$90$103$115$128$1402026-08-04: open $98.98, high $99.48, low $97.86, close $98.752026-08-05: open $99.16, high $100.95, low $98.64, close $99.022026-08-06: open $128.22, high $137.70, low $126.15, close $132.552026-08-07: open $134.99, high $135.49, low $126.44, close $131.102026-08-10: open $129.98, high $135.50, low $129.50, close $134.752026-08-11: open $134.55, high $135.30, low $131.67, close $132.572026-08-12: open $132.31, high $135.26, low $130.80, close $132.282026-08-13: open $132.50, high $133.16, low $126.13, close $126.332026-08-14: open $126.85, high $126.85, low $122.21, close $123.742026-08-17: open $124.71, high $128.46, low $124.70, close $128.322026-08-18: open $128.07, high $128.93, low $126.39, close $128.462026-08-19: open $129.85, high $131.10, low $127.42, close $130.662026-08-20: open $128.36, high $130.27, low $124.60, close $125.082026-08-21: open $125.22, high $127.20, low $124.98, close $125.772026-08-24: open $125.03, high $126.11, low $122.83, close $123.982026-08-25: open $124.65, high $127.18, low $122.87, close $123.892026-08-26: open $122.89, high $125.59, low $121.64, close $124.392026-08-27: open $124.67, high $126.10, low $121.21, close $121.392026-08-28: open $120.11, high $120.66, low $117.15, close $118.542026-08-31: open $118.68, high $122.71, low $117.51, close $121.822026-09-01: open $121.95, high $122.19, low $119.52, close $121.512026-09-02: open $121.11, high $126.79, low $121.11, close $126.632026-09-03: open $126.70, high $127.09, low $124.05, close $126.682026-09-04: open $126.00, high $128.24, low $125.62, close $126.292026-09-08: open $124.78, high $127.42, low $121.38, close $124.892026-09-09: open $124.00, high $130.83, low $121.38, close $128.802026-09-10: open $127.22, high $128.85, low $124.29, close $127.282026-09-11: open $127.98, high $130.25, low $126.52, close $129.412026-09-14: open $129.50, high $130.78, low $124.58, close $125.302026-09-15: open $126.10, high $126.10, low $118.34, close $119.922026-09-16: open $120.00, high $124.41, low $119.55, close $122.582026-09-17: open $124.16, high $127.40, low $122.88, close $123.982026-09-18: open $123.89, high $124.11, low $119.47, close $120.002026-09-21: open $123.06, high $124.48, low $120.92, close $121.002026-09-22: open $121.00, high $122.48, low $119.09, close $120.822026-09-23: open $121.58, high $122.65, low $116.74, close $118.342026-09-24: open $119.26, high $121.69, low $118.38, close $121.552026-09-25: open $121.87, high $122.62, low $115.87, close $117.832026-09-28: open $116.83, high $119.32, low $116.31, close $117.672026-09-29: open $117.06, high $118.50, low $114.49, close $115.632026-09-30: open $115.65, high $116.43, low $113.60, close $114.142026-10-01: open $114.68, high $116.19, low $108.48, close $108.592026-10-02: open $107.76, high $111.54, low $105.68, close $111.122026-10-05: open $105.50, high $108.75, low $101.65, close $103.832026-10-06: open $103.97, high $107.87, low $101.32, close $105.232026-10-07: open $103.87, high $104.80, low $101.60, close $101.742026-10-08: open $100.66, high $101.06, low $96.68, close $100.482026-10-09: open $100.52, high $101.82, low $99.15, close $100.602026-10-12: open $98.82, high $100.31, low $98.33, close $98.562026-10-13: open $98.18, high $99.73, low $96.54, close $96.792026-10-14: open $97.39, high $98.00, low $95.76, close $97.792026-10-15: open $99.26, high $100.72, low $97.90, close $99.212026-10-16: open $98.70, high $99.00, low $96.05, close $96.272026-10-19: open $96.27, high $97.88, low $94.38, close $95.292026-10-20: open $95.44, high $97.20, low $94.60, close $95.672026-10-21: open $95.08, high $97.09, low $93.80, close $94.042026-10-22: open $93.50, high $95.59, low $93.33, close $95.062026-10-23: open $94.12, high $94.64, low $92.63, close $93.392026-10-26: open $93.44, high $94.34, low $92.96, close $93.332026-10-27: open $93.33, high $96.37, low $92.87, close $94.962026-10-28: open $94.01, high $97.92, low $93.86, close $96.982026-10-29: open $110.00, high $114.51, low $103.78, close $111.592026-10-30: open $113.60, high $116.37, low $111.97, close $112.58Insider purchases / sales · USD$50M$0−$50M2026-08-06: 0 purchases ($0), 2 sales ($3M)2026-08-10: 0 purchases ($0), 1 sales ($32M)2026-08-17: 0 purchases ($0), 1 sales ($638K)2026-09-09: 0 purchases ($0), 1 sales ($3M)Aug 4Aug 26Sep 17Oct 9Oct 30

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Oct 30, 2026. Insider data through Nov 1, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

560 transactions from November 1, 2024 to November 1, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Oct 19, 2026Koppikar UtpalDirectoraward6,139——6,139Oct 20, 2026
Oct 19, 2026Hudson PaulDirectoraward6,139——6,139Oct 20, 2026
Sep 9, 2026Brennan David RDirectoropen-market sale25,000$124.00$3M39,238Sep 11, 2026
Aug 17, 2026Sharoky Melvin MDDirectoropen-market saleindirect5,000$127.53$638K0Aug 19, 2026
Aug 10, 2026Adsett RogerChief Operating Officeroption exercise82,280$13.67$1M181,024Aug 12, 2026
Aug 10, 2026Adsett RogerChief Operating Officeroption exercise76,600$17.16$1M257,624Aug 12, 2026
Aug 10, 2026Adsett RogerChief Operating Officeroption exercise80,970$30.46$2M338,594Aug 12, 2026
Aug 10, 2026Adsett RogerChief Operating Officeropen-market sale239,850$133.27$32M98,744Aug 12, 2026
Aug 6, 2026Flammer Martina M.D.Chief Medical Officeroption exercise18,278$18.95$346K78,764Aug 7, 2026
Aug 6, 2026Flammer Martina M.D.Chief Medical Officeroption exercise8,895$25.83$230K87,659Aug 7, 2026
Aug 6, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-18,895$127.00$1M78,764Aug 7, 2026
Aug 6, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-118,278$129.40$2M60,486Aug 7, 2026
Jul 23, 2026Lewis WilliamChair and CEO, Directoroption exercise6,260$30.46$191K265,318Jul 24, 2026
Jul 23, 2026Lewis WilliamChair and CEO, Directoroption exercise4,440$17.16$76K269,758Jul 24, 2026
Jul 23, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-14,828$105.62$510K264,930Jul 24, 2026
Jul 23, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-15,872$106.43$625K259,058Jul 24, 2026
Jul 9, 2026Lewis WilliamChair and CEO, Directoroption exercise6,259$30.46$191K265,317Jul 10, 2026
Jul 9, 2026Lewis WilliamChair and CEO, Directoroption exercise4,440$17.16$76K269,757Jul 10, 2026
Jul 9, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-15,005$116.55$583K264,752Jul 10, 2026
Jul 9, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-12,335$117.62$275K262,417Jul 10, 2026
Jul 9, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-13,359$118.52$398K259,058Jul 10, 2026
Jul 6, 2026Flammer Martina M.D.Chief Medical Officeroption exercise7,945$29.13$231K68,431Jul 8, 2026
Jul 6, 2026Flammer Martina M.D.Chief Medical Officeroption exercise4,357$19.74$86K72,788Jul 8, 2026
Jul 6, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-14,854$109.02$529K67,934Jul 8, 2026
Jul 6, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-17,448$110.60$824K60,486Jul 8, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoroption exercise12,518$30.46$381K271,435Jun 26, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoroption exercise8,880$17.16$152K280,315Jun 26, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-112,091$102.34$1M268,224Jun 26, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-11,836$103.10$189K266,388Jun 26, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-13,723$104.28$388K262,665Jun 26, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-12,456$105.27$259K260,209Jun 26, 2026
Jun 25, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-11,292$106.27$137K258,917Jun 26, 2026
Jun 23, 2026Butera SamueleSVP, GM, Global Respiratoryaward7,342——7,342Jun 24, 2026
Jun 22, 2026Smith Michael AlexanderChief Legal Officeropen-market sale10b5-11,806$95.82$173K37,648Jun 24, 2026
Jun 8, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-16,515$94.03$613K258,917Jun 10, 2026
Jun 5, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-11,858$103.78$193K60,486Jun 5, 2026
Jun 3, 2026Adsett RogerChief Operating Officeropen-market sale2,370$102.27$242K98,603Jun 5, 2026
Jun 3, 2026Bonstein SaraChief Financial Officeropen-market sale2,404$102.27$246K69,082Jun 5, 2026
Jun 3, 2026Smith Michael AlexanderChief Legal Officeropen-market sale2,159$102.27$221K39,454Jun 5, 2026
Jun 3, 2026Lewis WilliamChair and CEO, Directoropen-market sale7,605$102.27$778K265,432Jun 5, 2026
Jun 3, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-12,566$102.27$262K62,344Jun 5, 2026
May 22, 2026Smith Michael AlexanderChief Legal Officeropen-market sale10b5-16,149$108.47$667K41,613May 22, 2026
May 18, 2026Lewis WilliamChair and CEO, Directoroption exercise6,259$30.46$191K294,161May 20, 2026
May 18, 2026Lewis WilliamChair and CEO, Directoroption exercise4,440$17.16$76K298,601May 20, 2026
May 18, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-15,753$105.32$606K292,848May 20, 2026
May 18, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-111,836$106.39$1M281,012May 20, 2026
May 18, 2026Lewis WilliamChair and CEO, Directoropen-market sale10b5-17,975$106.97$853K273,037May 20, 2026
May 14, 2026Flammer Martina M.D.Chief Medical Officeropen-market sale10b5-110,479$117.54$1M64,910May 15, 2026
May 13, 2026Bonstein SaraChief Financial Officeropen-market sale8,272$116.18$961K71,486May 15, 2026
May 13, 2026Schafer CarolDirectoraward3,305——66,622May 15, 2026

Who the insiders are

Everyone who reported a transaction since November 1, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Adsett RogerChief Operating OfficerAug 10, 2026option exercise181,024—$48M (10)3 of 10
Lewis WilliamChair and CEO, DirectorJul 23, 2026option exercise265,318—$33M (74)68 of 74
Flammer Martina M.D.Chief Medical OfficerAug 6, 2026option exercise78,764—$23M (40)40 of 40
Schaeffer Orlov S NicoleChief People Strategy OfficerJan 2, 2026award41,754—$21M (9)5 of 9
Lee LeoDirectorMay 13, 2026award57,971—$15M (5)0 of 5
Smith Michael AlexanderChief Legal OfficerJun 22, 2026open-market sale37,648—$14M (20)14 of 20
Sharoky Melvin MDDirectorAug 17, 2026open-market sale246,081—$5M (2)0 of 2
Brennan David RDirectorSep 9, 2026open-market sale39,238—$3M (1)0 of 1
Anderson Elizabeth MDirectorMay 13, 2026award62,034—$3M (2)0 of 2
Bonstein SaraChief Financial OfficerJun 3, 2026open-market sale69,082—$2M (6)0 of 6
Wise John DraytonChief Commercial OfficerFeb 7, 2025open-market sale133,015———
Mcgirr David W JDirectorFeb 9, 2026gift44,323———
Desjardins ClarissaDirectorMay 13, 2026award70,312———
Schafer CarolDirectorMay 13, 2026award66,622———
Koppikar UtpalDirectorOct 19, 2026award6,139———
Hudson PaulDirectorOct 19, 2026award6,139———
Butera SamueleSVP, GM, Global RespiratoryJun 23, 2026award7,342———

Questions

Are Insmed, Inc. insiders buying or selling?

Over the twelve months to November 1, 2026, 10 insiders at Insmed, Inc. sold $167M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $167M. Only open-market purchases and sales are counted.

Who sold the most Insmed, Inc. stock in the last year?

Adsett Roger (Chief Operating Officer) sold $48M in 10 open-market sales over the twelve months to November 1, 2026.

Do Insmed, Inc. executives sell under 10b5-1 plans?

130 of the 169 open-market sales in the last twelve months (77%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on Insmed, Inc.

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.