Newest
PEBO ▼ sold $76K · Augenstein Mark filed 1d agoBBT ▲ bought $105K · Hollister Thomas J filed 2d agoBBT ▼ sold $20K · Eagan John Buckley filed 2d agoGS ▼ sold $60K · LESLIE ERICKA T filed 2d agoGS ▼ sold $163K · LESLIE ERICKA T filed 2d agoMSCI ▼ sold $1.5M · Gutowski Robert J. filed 2d agoGL ▼ sold $2.2M · MAJORS MICHAEL CLAY filed 2d agoPHR ▲ bought $362 · Linetsky David filed 2d agoPHR ▲ bought $320 · Linetsky David filed 2d agoRVI ▲ bought $23K · Whitney Meredith filed 2d agoLEO ▲ bought $369K · Saba Capital Management, L.P. filed 2d agoPG ▼ sold $5.7M · Jejurikar Shailesh filed 2d agoICLR ▼ sold $10K · Lyons Emer filed 2d agoICLR ▼ sold $10K · Lyons Emer filed 2d agoICLR ▼ sold $8K · Lyons Emer filed 2d agoICLR ▼ sold $15K · Lyons Emer filed 2d agoICLR ▼ sold $8K · Lyons Emer filed 2d agoPG ▼ sold $698K · Gama Paul filed 2d ago

Stock / equity

INSM INSMED Inc

Company
INSMED Inc
Security
Equity
Size, estimated from filings
Large cap ($10B – $200B)
Insiders on record
16
Members of Congress
2
Latest trade on record
October 19, 2026

INSM (INSMED Inc) has 308 disclosed insider transactions from 16 insiders in the last 12 months (0 open-market buys, 169 sales, about $184.0M at reported prices) and 2 congressional trades from 2 members of Congress. The most recent disclosure was filed October 20, 2026.

Last updated October 20, 2026 · Sources: SEC EDGAR Form 4; House Clerk and Senate eFD PTRs

Insider txns (12m)
308
Open-market buys / sales
0 / 169
Congress trades (12m)
2
Distinct filers (12m)
18

Share price

Price and chart by TradingView for INSMED Inc. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.

INSM in charts

Who is trading this stock

Which people account for the buying and selling over the last 12 months?

BoughtSold

8 people account for the disclosed buying and selling in INSM over the last 12 months; the most active is Adsett Roger with $48M.

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Prices insiders traded at

What price did insiders buy and sell at? Each marker is one open-market trade at the share price reported on its Form 4.

▲ Bought▼ SoldAverage reported price that day
$50$100$150$200$250Nov 2025Sep 2026
$50$100$150$200$250Nov 2025Sep 2026

Insiders reported 169 open-market trades in INSM since Nov 3, 2025, at prices from $94.03 to $208; the most recent was a sale at $124 on Sep 9, 2026. These are the prices on the filings, not adjusted for stock splits, and not a market price series.

Insider holdings over time

Is an insider building or unwinding a position? Shares held directly after each filing.

Lewis WilliamFlammer Martina M.D.
0163K325K259K60K2025-11-132026-08-07

Lewis William reported 259,058 shares held after the latest filing, against 303,911 at the first on record.

Lobbying spend by quarter

How much has INSMED Inc reported spending on federal lobbying?

Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26Q4 26
Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26Q4 26

INSMED Inc reported $110K in lobbying over the last eight quarters, from filings matched by exact company name.

Federal contracts by agency

Which agencies awarded INSMED Inc contracts that started in the last 180 days?

Department of Veterans Affairs$31K
Department of Veter…$31K

Federal contract awards to INSMED Inc that started in the last 180 days have a combined award value of $31K, most from Department of Veterans Affairs.

Insiders trading INSM

Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns. Showing 15 of 16.

InsiderRoleRowsBoughtSoldValue boughtValue soldLatest
Lewis WilliamChair and CEO136074—$32.8MJuly 23, 2026
Flammer Martina M.D.Chief Medical Officer67040—$23.3MAugust 6, 2026
Smith Michael AlexanderChief Legal Officer30020—$14.0MJune 22, 2026
Adsett RogerChief Operating Officer20010—$48.3MAugust 10, 2026
Schaeffer Orlov S NicoleChief People Strategy Officer1509—$21.1MJanuary 2, 2026
SHAROKY MELVIN MDDirector902—$4.7MAugust 17, 2026
Bonstein SaraChief Financial Officer906—$2.1MJune 3, 2026
LEE LEODirector605—$14.7MMay 13, 2026
Brennan David RDirector501—$3.1MSeptember 9, 2026
ANDERSON ELIZABETH MDirector302—$3.0MMay 13, 2026
Butera SamueleSVP, GM, Global Respiratory200——June 23, 2026
MCGIRR DAVID W JDirector200——February 9, 2026
Hudson PaulDirector100——October 19, 2026
Koppikar UtpalDirector100——October 19, 2026
Desjardins ClarissaDirector100——May 13, 2026
What kind of transactions these are 4 Form 4 codes
CodeMeaningRowsSharesValue at reported prices
SOpen-market sale1691,097,136$167.1M
MOption exercise or conversion1041,609,602$16.9M
AGrant or award24372,502—
GGift11234,944—

What each code means: Form 4 transaction codes.

Members of Congress trading INSM

Members whose periodic transaction reports name this ticker. Amounts are the sums of the ranges as filed.

MemberSeatTradesBoughtSoldRange as filedLatest
Gilbert Ray Cisneros, Jr.Representative (CA, District 31), Democrat202$2,002–$30KOctober 3, 2025
Josh GottheimerRepresentative (NJ, District 5), Democrat101$1,001–$15KJune 10, 2026

Download CSV311 rows · 103 KB · insider and congressional rows for this ticker · all downloads

Insider transactions

FilerSideTrade dateDisclosedLagSharesPriceValueFlagsSourceShare
Hudson PaulOther AOctober 19, 2026October 20, 20261d6,139——Form 4 ↗
Koppikar UtpalOther AOctober 19, 2026October 20, 20261d6,139——Form 4 ↗
Brennan David RSell SSeptember 9, 2026September 11, 20262d25,000$124$3.1MForm 4 ↗
SHAROKY MELVIN MDSell SAugust 17, 2026August 19, 20262d5,000$128$638KindirectForm 4 ↗
Adsett RogerOption / conversion MAugust 10, 2026August 12, 20262d80,970——derivativeForm 4 ↗
Adsett RogerOption / conversion MAugust 10, 2026August 12, 20262d76,600——derivativeForm 4 ↗
Adsett RogerOption / conversion MAugust 10, 2026August 12, 20262d82,280——derivativeForm 4 ↗
Adsett RogerSell SAugust 10, 2026August 12, 20262d239,850$133$32.0MForm 4 ↗
Adsett RogerOption / conversion MAugust 10, 2026August 12, 20262d80,970$30$2.5MForm 4 ↗
Adsett RogerOption / conversion MAugust 10, 2026August 12, 20262d76,600$17$1.3MForm 4 ↗
Adsett RogerOption / conversion MAugust 10, 2026August 12, 20262d82,280$14$1.1MForm 4 ↗
Flammer Martina M.D.Option / conversion MAugust 6, 2026August 7, 20261d8,895——10b5-1 planderivativeForm 4 ↗
Flammer Martina M.D.Option / conversion MAugust 6, 2026August 7, 20261d18,278——10b5-1 planderivativeForm 4 ↗
Flammer Martina M.D.Sell SAugust 6, 2026August 7, 20261d18,278$129$2.4M10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SAugust 6, 2026August 7, 20261d8,895$127$1.1M10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MAugust 6, 2026August 7, 20261d8,895$26$230K10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MAugust 6, 2026August 7, 20261d18,278$19$346K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJuly 23, 2026July 24, 20261d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MJuly 23, 2026July 24, 20261d6,260——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SJuly 23, 2026July 24, 20261d5,872$106$625K10b5-1 planForm 4 ↗
Lewis WilliamSell SJuly 23, 2026July 24, 20261d4,828$106$510K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJuly 23, 2026July 24, 20261d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJuly 23, 2026July 24, 20261d6,260$30$191K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJuly 9, 2026July 10, 20261d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MJuly 9, 2026July 10, 20261d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SJuly 9, 2026July 10, 20261d3,359$119$398K10b5-1 planForm 4 ↗
Lewis WilliamSell SJuly 9, 2026July 10, 20261d2,335$118$275K10b5-1 planForm 4 ↗
Lewis WilliamSell SJuly 9, 2026July 10, 20261d5,005$117$583K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJuly 9, 2026July 10, 20261d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJuly 9, 2026July 10, 20261d6,259$30$191K10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MJuly 6, 2026July 8, 20262d4,357——10b5-1 planderivativeForm 4 ↗
Flammer Martina M.D.Option / conversion MJuly 6, 2026July 8, 20262d7,945——10b5-1 planderivativeForm 4 ↗
Flammer Martina M.D.Sell SJuly 6, 2026July 8, 20262d7,448$111$824K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SJuly 6, 2026July 8, 20262d4,854$109$529K10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MJuly 6, 2026July 8, 20262d4,357$20$86K10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MJuly 6, 2026July 8, 20262d7,945$29$231K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJune 25, 2026June 26, 20261d8,880——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MJune 25, 2026June 26, 20261d12,518——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SJune 25, 2026June 26, 20261d1,292$106$137K10b5-1 planForm 4 ↗
Lewis WilliamSell SJune 25, 2026June 26, 20261d2,456$105$259K10b5-1 planForm 4 ↗
Lewis WilliamSell SJune 25, 2026June 26, 20261d3,723$104$388K10b5-1 planForm 4 ↗
Lewis WilliamSell SJune 25, 2026June 26, 20261d1,836$103$189K10b5-1 planForm 4 ↗
Lewis WilliamSell SJune 25, 2026June 26, 20261d12,091$102$1.2M10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJune 25, 2026June 26, 20261d8,880$17$152K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJune 25, 2026June 26, 20261d12,518$30$381K10b5-1 planForm 4 ↗
Butera SamueleOther AJune 23, 2026June 24, 20261d12,570——derivativeForm 4 ↗
Butera SamueleOther AJune 23, 2026June 24, 20261d7,342——Form 4 ↗
Smith Michael AlexanderSell SJune 22, 2026June 24, 20262d1,806$96$173K10b5-1 planForm 4 ↗
Lewis WilliamSell SJune 8, 2026June 10, 20262d6,515$94$613K10b5-1 planForm 4 ↗
Adsett RogerSell SJune 3, 2026June 5, 20262d2,370$102$242KForm 4 ↗
Bonstein SaraSell SJune 3, 2026June 5, 20262d2,404$102$246KForm 4 ↗
Smith Michael AlexanderSell SJune 3, 2026June 5, 20262d2,159$102$221KForm 4 ↗
Lewis WilliamSell SJune 3, 2026June 5, 20262d7,605$102$778KForm 4 ↗
Flammer Martina M.D.Sell SJune 5, 2026June 5, 20260d1,858$104$193K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SJune 3, 2026June 5, 20262d2,566$102$262K10b5-1 planForm 4 ↗
Smith Michael AlexanderSell SMay 22, 2026May 22, 20260d6,149$108$667K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMay 18, 2026May 20, 20262d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MMay 18, 2026May 20, 20262d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SMay 18, 2026May 20, 20262d7,975$107$853K10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 18, 2026May 20, 20262d11,836$106$1.3M10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 18, 2026May 20, 20262d5,753$105$606K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMay 18, 2026May 20, 20262d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMay 18, 2026May 20, 20262d6,259$30$191K10b5-1 planForm 4 ↗
Bonstein SaraSell SMay 13, 2026May 15, 20262d8,272$116$961KForm 4 ↗
SCHAFER CAROLOther AMay 13, 2026May 15, 20262d3,305——Form 4 ↗
Adsett RogerSell SMay 13, 2026May 15, 20262d5,837$116$678KForm 4 ↗
ANDERSON ELIZABETH MOther AMay 13, 2026May 15, 20262d3,305——Form 4 ↗
Flammer Martina M.D.Sell SMay 14, 2026May 15, 20261d10,479$118$1.2M10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SMay 13, 2026May 15, 20262d3,384$116$393K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SMay 13, 2026May 15, 20262d4,470$113$504K10b5-1 planForm 4 ↗
Smith Michael AlexanderSell SMay 13, 2026May 15, 20262d4,109$116$477KForm 4 ↗
SHAROKY MELVIN MDOther AMay 13, 2026May 15, 20262d3,305——Form 4 ↗
Brennan David ROther AMay 13, 2026May 15, 20262d3,305——Form 4 ↗
Desjardins ClarissaOther AMay 13, 2026May 15, 20262d3,305——Form 4 ↗
LEE LEOOther AMay 13, 2026May 15, 20262d3,305——Form 4 ↗
Lewis WilliamSell SMay 13, 2026May 15, 20262d13,283$116$1.5MForm 4 ↗
Flammer Martina M.D.Option / conversion MMay 11, 2026May 13, 20262d12,949——10b5-1 planderivativeForm 4 ↗
Flammer Martina M.D.Sell SMay 11, 2026May 13, 20262d830$101$84K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SMay 11, 2026May 13, 20262d12,119$100$1.2M10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MMay 11, 2026May 13, 20262d12,949$17$221K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMay 4, 2026May 6, 20262d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MMay 4, 2026May 6, 20262d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SMay 4, 2026May 6, 20262d381$140$53K10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 4, 2026May 6, 20262d1,247$139$173K10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 4, 2026May 6, 20262d2,721$138$375K10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 4, 2026May 6, 20262d5,318$137$729K10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 4, 2026May 6, 20262d599$135$81K10b5-1 planForm 4 ↗
Lewis WilliamSell SMay 4, 2026May 6, 20262d433$134$58K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMay 4, 2026May 6, 20262d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMay 4, 2026May 6, 20262d6,259$30$191K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MApril 16, 2026April 17, 20261d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MApril 16, 2026April 17, 20261d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SApril 16, 2026April 17, 20261d825$146$120K10b5-1 planForm 4 ↗
Lewis WilliamSell SApril 16, 2026April 17, 20261d2,255$145$326K10b5-1 planForm 4 ↗
Lewis WilliamSell SApril 16, 2026April 17, 20261d5,373$144$773K10b5-1 planForm 4 ↗
Lewis WilliamSell SApril 16, 2026April 17, 20261d2,246$143$321K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MApril 16, 2026April 17, 20261d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MApril 16, 2026April 17, 20261d6,259$30$191K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MApril 6, 2026April 8, 20262d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MApril 6, 2026April 8, 20262d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SApril 6, 2026April 8, 20262d1,434$164$235K10b5-1 planForm 4 ↗
Lewis WilliamSell SApril 6, 2026April 8, 20262d8,478$163$1.4M10b5-1 planForm 4 ↗
Lewis WilliamSell SApril 6, 2026April 8, 20262d787$162$127K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MApril 6, 2026April 8, 20262d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MApril 6, 2026April 8, 20262d6,259$30$191K10b5-1 planForm 4 ↗
Adsett RogerOption / conversion MApril 1, 2026April 3, 20262d88,060——10b5-1 planderivativeForm 4 ↗
Adsett RogerSell SApril 1, 2026April 3, 20262d62,344$165$10.3M10b5-1 planForm 4 ↗
Adsett RogerSell SApril 1, 2026April 3, 20262d19,001$164$3.1M10b5-1 planForm 4 ↗
Adsett RogerSell SApril 1, 2026April 3, 20262d6,715$163$1.1M10b5-1 planForm 4 ↗
Adsett RogerOption / conversion MApril 1, 2026April 3, 20262d88,060$15$1.3M10b5-1 planForm 4 ↗
Smith Michael AlexanderOption / conversion MMarch 30, 2026March 31, 20261d13,989——10b5-1 planderivativeForm 4 ↗
Smith Michael AlexanderOption / conversion MMarch 30, 2026March 31, 20261d5,649——10b5-1 planderivativeForm 4 ↗
Smith Michael AlexanderSell SMarch 30, 2026March 31, 20261d19,638$151$3.0M10b5-1 planForm 4 ↗
Smith Michael AlexanderOption / conversion MMarch 30, 2026March 31, 20261d13,989$28$390K10b5-1 planForm 4 ↗
Smith Michael AlexanderOption / conversion MMarch 30, 2026March 31, 20261d5,649$17$96K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMarch 19, 2026March 20, 20261d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MMarch 19, 2026March 20, 20261d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SMarch 19, 2026March 20, 20261d4,533$144$653K10b5-1 planForm 4 ↗
Lewis WilliamSell SMarch 19, 2026March 20, 20261d4,537$143$651K10b5-1 planForm 4 ↗
Lewis WilliamSell SMarch 19, 2026March 20, 20261d1,629$142$232K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMarch 19, 2026March 20, 20261d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMarch 19, 2026March 20, 20261d6,259$30$191K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMarch 5, 2026March 5, 20260d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MMarch 5, 2026March 5, 20260d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SMarch 5, 2026March 5, 20260d2,128$148$314K10b5-1 planForm 4 ↗
Lewis WilliamSell SMarch 5, 2026March 5, 20260d3,899$147$572K10b5-1 planForm 4 ↗
Lewis WilliamSell SMarch 5, 2026March 5, 20260d2,589$145$376K10b5-1 planForm 4 ↗
Lewis WilliamSell SMarch 5, 2026March 5, 20260d2,083$144$300K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMarch 5, 2026March 5, 20260d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MMarch 5, 2026March 5, 20260d6,259$30$191K10b5-1 planForm 4 ↗
SHAROKY MELVIN MDOther GMarch 3, 2026March 5, 20262d100——Form 4 ↗
SHAROKY MELVIN MDOther GFebruary 25, 2026February 27, 20262d243——indirectForm 4 ↗
SHAROKY MELVIN MDOther GFebruary 25, 2026February 27, 20262d243——indirectForm 4 ↗
SHAROKY MELVIN MDOther GFebruary 25, 2026February 27, 20262d243——indirectForm 4 ↗
SHAROKY MELVIN MDOther GFebruary 25, 2026February 27, 20262d243——indirectForm 4 ↗
SHAROKY MELVIN MDOther GFebruary 25, 2026February 27, 20262d1,072——Form 4 ↗
Smith Michael AlexanderOption / conversion MFebruary 24, 2026February 25, 20261d20,248——10b5-1 planderivativeForm 4 ↗
Smith Michael AlexanderSell SFebruary 24, 2026February 25, 20261d15,771$157$2.5M10b5-1 planForm 4 ↗
Smith Michael AlexanderSell SFebruary 24, 2026February 25, 20261d4,151$155$644K10b5-1 planForm 4 ↗
Smith Michael AlexanderSell SFebruary 24, 2026February 25, 20261d4,852$154$747K10b5-1 planForm 4 ↗
Smith Michael AlexanderOption / conversion MFebruary 24, 2026February 25, 20261d20,248$17$346K10b5-1 planForm 4 ↗
Brennan David ROther GFebruary 23, 2026February 25, 20262d6,000——Form 4 ↗
Lewis WilliamOption / conversion MFebruary 19, 2026February 23, 20264d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MFebruary 19, 2026February 23, 20264d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SFebruary 19, 2026February 23, 20264d1,030$153$158K10b5-1 planForm 4 ↗
Lewis WilliamSell SFebruary 19, 2026February 23, 20264d2,377$152$361K10b5-1 planForm 4 ↗
Lewis WilliamSell SFebruary 19, 2026February 23, 20264d3,413$151$516K10b5-1 planForm 4 ↗
Lewis WilliamSell SFebruary 19, 2026February 23, 20264d1,891$150$284K10b5-1 planForm 4 ↗
Lewis WilliamSell SFebruary 19, 2026February 23, 20264d1,988$149$297K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MFebruary 19, 2026February 23, 20264d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MFebruary 19, 2026February 23, 20264d6,259$30$191K10b5-1 planForm 4 ↗
MCGIRR DAVID W JOther GFebruary 9, 2026February 11, 20262d53,400——indirectForm 4 ↗
MCGIRR DAVID W JOther GFebruary 9, 2026February 11, 20262d53,400——Form 4 ↗
Lewis WilliamOption / conversion MFebruary 9, 2026February 11, 20262d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MFebruary 9, 2026February 11, 20262d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SFebruary 9, 2026February 11, 20262d1,287$149$192K10b5-1 planForm 4 ↗
Lewis WilliamSell SFebruary 9, 2026February 11, 20262d7,221$148$1.1M10b5-1 planForm 4 ↗
Lewis WilliamSell SFebruary 9, 2026February 11, 20262d4,888$147$719K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MFebruary 9, 2026February 11, 20262d6,259$30$191K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MFebruary 9, 2026February 11, 20262d4,440$17$76K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SFebruary 5, 2026February 6, 20261d869$152$132K10b5-1 planForm 4 ↗
Adsett RogerSell SFebruary 3, 2026February 4, 20261d791$156$124KForm 4 ↗
Bonstein SaraSell SFebruary 3, 2026February 4, 20261d748$156$117KForm 4 ↗
Lewis WilliamSell SFebruary 3, 2026February 4, 20261d3,009$156$470KForm 4 ↗
Smith Michael AlexanderSell SFebruary 3, 2026February 4, 20261d640$156$100KForm 4 ↗
Flammer Martina M.D.Option / conversion MFebruary 2, 2026February 4, 20262d7,982——10b5-1 planderivativeForm 4 ↗
Flammer Martina M.D.Sell SFebruary 3, 2026February 4, 20261d795$156$124K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SFebruary 2, 2026February 4, 20262d100$157$16K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SFebruary 2, 2026February 4, 20262d3,042$155$473K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SFebruary 2, 2026February 4, 20262d3,349$155$518K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SFebruary 2, 2026February 4, 20262d928$153$142K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SFebruary 2, 2026February 4, 20262d563$152$86K10b5-1 planForm 4 ↗
Flammer Martina M.D.Option / conversion MFebruary 2, 2026February 4, 20262d7,982$66$525K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJanuary 20, 2026January 22, 20262d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MJanuary 20, 2026January 22, 20262d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SJanuary 20, 2026January 22, 20262d254$161$41K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 20, 2026January 22, 20262d2,229$160$356K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 20, 2026January 22, 20262d5,967$159$949K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 20, 2026January 22, 20262d1,243$158$197K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 20, 2026January 22, 20262d1,006$157$158K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJanuary 20, 2026January 22, 20262d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJanuary 20, 2026January 22, 20262d6,259$30$191K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJanuary 12, 2026January 13, 20261d4,440——10b5-1 planderivativeForm 4 ↗
Lewis WilliamOption / conversion MJanuary 12, 2026January 13, 20261d6,259——10b5-1 planderivativeForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d315$175$55K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d297$172$51K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d297$171$51K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d160$170$27K10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d6,996$170$1.2M10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d7,176$169$1.2M10b5-1 planForm 4 ↗
Lewis WilliamSell SJanuary 12, 2026January 13, 20261d3,974$168$667K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJanuary 12, 2026January 13, 20261d4,440$17$76K10b5-1 planForm 4 ↗
Lewis WilliamOption / conversion MJanuary 12, 2026January 13, 20261d6,259$30$191K10b5-1 planForm 4 ↗
Flammer Martina M.D.Sell SJanuary 9, 2026January 13, 20264d1,887$186$351K10b5-1 planForm 4 ↗
Adsett RogerSell SJanuary 8, 2026January 8, 20260d2,059$174$359KForm 4 ↗
Adsett RogerSell SJanuary 7, 2026January 8, 20261d802$175$140KForm 4 ↗
Adsett RogerSell SJanuary 6, 2026January 8, 20262d1,429$173$248KForm 4 ↗
Bonstein SaraSell SJanuary 8, 2026January 8, 20260d1,447$174$252KForm 4 ↗
Bonstein SaraSell SJanuary 7, 2026January 8, 20261d1,678$175$294KForm 4 ↗
Bonstein SaraSell SJanuary 6, 2026January 8, 20262d1,517$173$263KForm 4 ↗

Showing the 200 most recent of 308.

Congressional trades

FilerSideTrade dateDisclosedLagSharesPriceValueFlagsSourceShare
Josh GottheimerSellJune 10, 2026July 7, 202627d——$1,001–$15KjointHouse PTR ↗
Gilbert Ray Cisneros, Jr.SellOctober 3, 2025November 18, 202546d——$1,001–$15KlateHouse PTR ↗
Gilbert Ray Cisneros, Jr.SellSeptember 22, 2025October 10, 202518d——$1,001–$15KHouse PTR ↗

Tickers traded by the same people who traded INSM, by number of filers in common. It shows overlap in public filings and nothing else.

  • CRWD CrowdStrike Holdings, Inc. - Class A Common Stock 2 filers in common
  • NET Cloudflare, Inc. Class A Common Stock 2 filers in common
  • UBER Uber Technologies, Inc. Common Stock 2 filers in common
  • CVNA Carvana Co. Class A Common Stock 2 filers in common
  • MU Micron Technology, Inc. - Common Stock 2 filers in common
  • INTU Intuit Inc. - Common Stock 2 filers in common
  • NOW ServiceNow, Inc. Common Stock 2 filers in common
  • AMD Advanced Micro Devices, Inc. 2 filers in common

Guides for this page

Sources and method

Official sources behind this page
SourceFilingsRowsFirst filedNewest filedRead the originals
House Clerk, periodic transaction reports33October 10, 2025July 7, 2026House Clerk search
SEC EDGAR, Form 477308November 5, 2025October 20, 2026Form 4 list on EDGAR

Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.

Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.

Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.