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Disclosery

INSM INSMED INC

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Stock (common), issuer CIK 1104506

647 managers (667 13F filers) reported a position in INSM shares at 2026-06-30, 223,736,024 shares in all. 112 filers opened a position and 122 filers sold out during the quarter.

Managers
647
13F filers
667
New
112
Added
247
Reduced
231
Sold out
122
Shares held by filers
223,736,024

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
EFG International AGin group EFG International AG50,941$5.43M0.1%+10,39913F-HRTimelineGroup
SIMON QUICK ADVISORS, LLC50,047$5.34M0.22%-1813F-HRTimeline
Cetera Investment Advisers48,622$5.18M<0.01%+14,26613F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd48,355$5.16M0.04%new13F-HRTimelineGroup
XPONANCE LLC48,273$5.15M0.03%+42113F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC47,266$5.04M0.09%new13F-HRTimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…46,033$4.91M0.04%+38,02513F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…45,844$4.89M0.01%+27,64413F-HRTimelineGroup
Entropy Technologies, LP45,469$4.85M0.19%+41,13713F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC44,473$4.74M0.01%new13F-HRTimelineGroup
Campbell & CO Investment Adviser LLC43,856$4.68M0.25%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC43,092$4.59M0.02%+42,15613F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC42,991$4.58M0.6%-19,68513F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC41,694$4.45M0.01%+18,74513F-HRTimelineGroup
OFI INVEST ASSET MANAGEMENT47,000$4.38M0.04%new13F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH41,746$4.37M0.03%+14313F-HRTimelineGroup
Headlands Technologies LLC40,855$4.36M0.46%+38,04713F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG40,521$4.32M0.04%+1,27813F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…39,594$4.22M0.04%+2,71313F-HRTimelineGroup
ALGERT GLOBAL LLC39,480$4.21M0.05%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC38,766$4.13M0.03%-41,25513F-HRTimelineGroup
Orion Porfolio Solutions, LLC35,467$3.78M0.03%+82613F-HRTimeline
Korea Investment CORP35,429$3.78M0.01%013F-HRTimeline
Militia Capital Management LLCin group Militia Capital Management LLC35,100$3.74M0.67%new13F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC34,871$3.72M0.01%+61313F-HRTimelineGroup
China Universal Asset Management Co., L…34,496$3.68M0.22%-12,51913F-HRTimeline
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…34,438$3.67M0.41%-1,41213F-HRTimelineGroup
KBC Group NVin group KBC Group NV34,421$3.67M0.01%-2,92613F-HRTimelineGroup
MML INVESTORS SERVICES, LLC32,823$3.5M0.01%+8,05013F-HRTimeline
GROUP ONE TRADING LLC32,654$3.48M0.1%+23,56013F-HRTimeline
Utah Retirement Systems32,484$3.46M0.03%-1,54713F-HRTimeline
Tredje AP-fonden32,407$3.46M0.02%-44,19713F-HRTimeline
Quantinno Capital Management LP32,163$3.43M<0.01%-3,38913F-HRTimeline
Police & Firemen's Retirement System of…31,808$3.39M0.03%-57,82213F-HRTimeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …31,414$3.35M0.02%+2,01613F-HRTimeline
PensionDanmark Pensionsforsikringsaktie…31,393$3.35M0.03%+2,33813F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…31,345$3.34M0.22%new13F-HRTimelineGroup
HighVista Strategies LLC31,256$3.33M0.76%+6,94013F-HRTimeline
Arrowpoint Investment Partners (Singapo…in group Arrowpoint Investment Partner…30,170$3.22M0.95%+23,15213F-HRTimelineGroup
Rafferty Asset Management, LLC30,045$3.2M0.01%-86,02413F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS28,747$3.07M0.01%-1,63513F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK28,611$3.05M0.01%-26013F-HRTimelineGroup
GordonMD Global Investments LPin group GordonMD Global Investments LP28,587$3.05M1.47%013F-HRTimelineGroup
KVP Capital Advisors, LP28,497$3.04M2.23%013F-HRTimeline
NISSAY ASSET MANAGEMENT CORP /JAPAN28,233$3.01M0.01%-31,81013F-HRTimeline
Fideuram Asset Management (Ireland) dac29,699$2.97M0.06%+24,16313F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…27,552$2.94M0.01%+9,04613F-HRTimelineGroup
AGF MANAGEMENT LTDin group AGF MANAGEMENT LTD27,286$2.91M0.01%-30,17213F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP27,018$2.88M<0.01%-3,23113F-HR/ATimelineGroup
National Pension Service26,678$2.84M<0.01%-285,20313F-HRTimeline
EMERALD ADVISERS, LLCgroup of 2 filers holding26,470$2.82M+6,250Timeline
Catalyst Funds Management Pty Ltd26,200$2.79M0.16%new13F-HRTimeline
NEXT CENTURY GROWTH INVESTORS LLC26,159$2.79M0.15%-813F-HRTimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…26,115$2.78M<0.01%+5,34113F-HRTimelineGroup
Nicholas Investment Partners, LP25,356$2.7M0.15%-157,18413F-HRTimeline
CANTOR FITZGERALD, L. P.in group CANTOR FITZGERALD, L. P.25,000$2.67M0.05%+14,00013F-HR/ATimelineGroup
OP Asset Management Ltd24,951$2.66M0.03%+2,72913F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding24,888$2.65M-190,150Timeline
PRUDENTIAL PLCin group PRUDENTIAL PLC24,458$2.61M0.01%+16,43513F-HRTimelineGroup
Atom Investors LP24,374$2.6M0.23%+8,60613F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC23,914$2.55M0.01%-3,33513F-HRTimelineGroup
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.23,362$2.49M0.01%-16,06713F-HRTimelineGroup
SECTORAL ASSET MANAGEMENT INC23,216$2.48M1.73%+3,54813F-HRTimeline
STRS OHIO22,827$2.43M0.01%-29,18213F-HRTimeline
AXQ CAPITAL, LP22,813$2.43M0.26%new13F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …22,855$2.43M<0.01%+60813F-HRTimelineGroup
TOBAM22,370$2.38M0.58%+5813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…22,303$2.38M0.02%013F-HRTimelineGroup
ROYAL LONDON ASSET MANAGEMENT LTD22,116$2.36M<0.01%+7,61813F-HRTimeline
Gotham Asset Management, LLC21,893$2.33M0.01%+11,88313F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …21,129$2.26M<0.01%-261,60513F-HRTimelineGroup
Qsemble Capital Management, LP21,148$2.25M0.29%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/20,748$2.21M<0.01%-41,83213F-HRTimelineGroup
Eurizon Capital SGR S.p.A.20,247$2.15M0.01%+1,77413F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC20,000$2.13M0.2%new13F-HRTimelineGroup
Silvant Capital Management LLC19,761$2.11M0.06%-14413F-HRTimeline
Havemeyer Place LP19,121$2.04M0.2%+6,66013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…19,020$2.03M0.01%013F-HRTimeline
SummitTX Capital, L.P.18,751$2M0.05%-4,40213F-HRTimeline
WCM INVESTMENT MANAGEMENT, LLC19,033$1.99M<0.01%+3,32613F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC18,668$1.99M<0.01%-2,81613F-HRTimelineGroup
THORNBURG INVESTMENT MANAGEMENT INC18,413$1.96M0.02%-19,92413F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.17,811$1.9M<0.01%-84613F-HRTimelineGroup
Wealthfront Advisers LLC17,511$1.87M<0.01%-89313F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC17,177$1.83M0.02%+10,39813F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/16,886$1.8M<0.01%-87,87213F-HRTimelineGroup
Aigen Investment Management, LP16,847$1.8M0.49%new13F-HRTimeline
Bridgefront Capital, LLC16,808$1.79M0.47%new13F-HRTimeline
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA16,399$1.75M<0.01%+1,19613F-HRTimelineGroup
Gulf International Bank (UK) Ltd16,227$1.73M0.03%-31813F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …16,061$1.71M0.02%+1,33613F-HRTimelineGroup
Quantitative Investment Management, LLC15,894$1.69M0.18%+1,58913F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…15,677$1.67M0.02%+12,15613F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP15,621$1.67M<0.01%+20513F-HRTimelineGroup
AMALGAMATED BANK15,577$1.66M0.01%-34413F-HRTimeline
OAK RIDGE INVESTMENTS LLC15,068$1.61M0.09%-97613F-HRTimeline
Saudi Central Bank14,732$1.57M0.02%+6,86013F-HRTimeline
PROFUND ADVISORS LLC14,602$1.56M0.04%-13,33513F-HRTimeline
SBI Okasan Asset Management Co.Ltd.14,700$1.54M0.05%-3,30013F-HRTimeline
Simplify Asset Management Inc.14,190$1.51M0.02%+3,40713F-HRTimeline
Exome Asset Management LLC13,873$1.48M0.91%-12,77813F-HRTimeline
Federation des caisses Desjardins du Qu…13,722$1.46M<0.01%+2,20513F-HRTimeline
TWINBEECH CAPITAL LP13,646$1.45M0.26%new13F-HRTimeline
Investment Management Corp of Ontario13,421$1.43M0.02%-1,80013F-HRTimeline
Capital Investment Advisors, LLC13,238$1.41M0.02%-713F-HRTimeline
S&CO INC13,000$1.39M0.08%+4,70013F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…12,633$1.35M<0.01%013F-HRTimelineGroup
Sterling Capital Management LLC12,580$1.34M0.02%-41313F-HRTimeline
Atria Investments, Inc12,370$1.32M0.01%-9,47513F-HRTimeline
INCEPTIONR LLC12,296$1.31M0.32%+7,12413F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…11,300$1.31M<0.01%+2,21813F-HRTimeline
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.12,200$1.3M0.04%+2,90713F-HRTimelineGroup
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise12,070$1.29M0.07%+8,14713F-HRTimelineGroup
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS12,028$1.28M0.01%-1,11513F-HRTimelineGroup
Ilmarinen Mutual Pension Insurance Co12,000$1.28M0.01%013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…11,926$1.27M0.01%-36413F-HRTimelineGroup
Rakuten Group, Inc.group of 2 filers holding12,116$1.27M-31,769Timeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…11,884$1.27M0.3%+7,60113F-HRTimelineGroup
Aster Capital Management (DIFC) Ltd11,814$1.26M0.27%+11,76213F-HR/ATimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC11,730$1.25M0.01%-4,32013F-HRTimeline
AlphaCentric Advisors LLC11,699$1.25M1.06%+2,82513F-HRTimeline
Aureus Asset Management, LLC11,441$1.22M0.07%+5,44113F-HRTimeline
Maryland State Retirement & Pension Sys…11,369$1.21M0.02%+88513F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC11,287$1.2M0.05%new13F-HRTimelineGroup
F/m Investments LLC11,218$1.2M0.06%+2,98813F-HRTimeline
Legato Capital Management LLC11,129$1.19M0.1%-28,42513F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding11,050$1.18M+8,350Timeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…10,927$1.17M0.03%-4,48313F-HRTimelineGroup
Aquatic Capital Management LLC10,593$1.13M0.04%new13F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A10,554$1.13M<0.01%+3,05313F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC10,338$1.1M0.1%+8,42513F-HRTimeline
Sanctuary Advisors, LLC10,253$1.09M0.01%-13,71613F-HRTimeline
CIBC Asset Management Inc10,148$1.08M<0.01%-38,04513F-HRTimeline
BAMCO INC /NY/in group Baron Capital10,000$1.07M<0.01%-10,00013F-HRTimelineGroup
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC9,927$1.06M0.01%-38213F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.9,896$1.06M0.01%+6,39613F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC9,856$1.05M0.01%+4813F-HRTimelineGroup
Fieldview Capital Management, LLC9,748$1.04M0.3%+7,54913F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP9,356$998K0.06%+6,89813F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE9,200$981K<0.01%-5,40013F-HR/ATimelineGroup
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.9,068$955K<0.01%-1,93813F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp8,932$952K<0.01%-53013F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth8,915$951K<0.01%+4,85213F-HRTimelineGroup
Waldron Private Wealth LLC8,810$939K0.03%013F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC8,507$907K<0.01%-27,86613F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP8,400$896K0.01%+5,10013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…8,154$869K<0.01%-75613F-HRTimelineGroup
Curi Capital, LLC8,014$854K0.01%new13F-HRTimeline
QRG CAPITAL MANAGEMENT, INC.7,984$851K0.01%-61713F-HR/ATimeline
&PARTNERS7,952$847K<0.01%-24613F-HRTimeline
Yorktown Management & Research Co Inc7,925$845K0.52%013F-HRTimeline
Summit Trail Advisors, LLC7,922$845K0.01%+1,20813F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC7,815$833K<0.01%-8,06013F-HRTimelineGroup
CASTLEARK MANAGEMENT LLC7,790$831K0.02%013F-HRTimeline
E. Ohman J:or Asset Management AB7,789$830K0.02%+2,55013F-HRTimeline
J.Safra Asset Management Corp7,650$816K0.04%+7,48913F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\7,517$801K<0.01%+14013F-HRTimelineGroup
NewEdge Advisors, LLC7,354$784K<0.01%+1,33913F-HRTimeline
State of Wyoming7,336$782K0.08%new13F-HRTimeline
Snowden Capital Advisors LLC7,262$774K0.02%-30913F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…7,252$773K<0.01%-7,58413F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding7,218$770K-72,221Timeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…7,165$764K<0.01%-26413F-HRTimelineGroup
AustralianSuper Pty Ltd7,157$763K<0.01%-4,51313F-HRTimeline
ProShare Advisors LLC7,109$758K<0.01%-276,03213F-HRTimeline
MYDA Advisors LLC7,000$746K0.18%013F-HRTimeline
Verition Fund Management LLC6,633$707K<0.01%new13F-HR/ATimeline
Nan Fung Group Holdings Ltd6,580$702K0.53%013F-HRTimeline
Quarry LP6,254$667K0.11%new13F-HRTimeline
North Dakota State Investment Board6,226$664K0.03%+17313F-HRTimeline
Cannon Advisors, Inc.6,018$663K0.4%new13F-HRTimeline
PEAK6 LLCin group PEAK6 LLC6,209$662K0.02%-1,71713F-HRTimelineGroup
Laurion Capital Management LP5,728$611K0.04%new13F-HRTimeline
Advisory Services Network, LLC5,701$608K0.01%+5,41713F-HRTimeline
Bayesian Capital Management, LP5,700$608K0.39%new13F-HRTimeline
GROUPAMA ASSET MANAGMENT5,541$580K0.01%-4913F-HRTimeline
Fulton Bank, N.A.5,348$570K0.02%+1013F-HRTimeline
iA Global Asset Management Inc.5,272$562K0.01%-29,70513F-HRTimeline
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD5,193$554K<0.01%013F-HRTimelineGroup
PKO Investment Management Joint-Stock Co5,100$544K0.04%-6,70013F-HRTimeline
UniSuper Management Pty Ltd5,079$542K<0.01%+87913F-HRTimeline
NWAM LLC5,071$541K0.03%-39,81213F-HRTimeline
Ethic Inc.5,002$533K0.01%-1,66813F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…4,942$527K<0.01%+99213F-HRTimelineGroup
Osmosis Investment Management UK Ltd4,926$525K0.02%-5,54913F-HRTimeline
Avior Wealth Management, LLC4,913$524K0.01%+91913F-HRTimeline
Vise Technologies, Inc.4,891$522K0.01%-1,42313F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV4,807$513K<0.01%-92513F-HR/ATimeline
Blueshift Asset Management, LLC4,800$512K0.12%+2,37613F-HRTimeline
Empowered Funds, LLC4,795$511K<0.01%-47,19113F-HRTimeline
Private Advisor Group, LLC4,740$505K<0.01%-913F-HRTimeline
CAXTON ASSOCIATES LLP4,726$504K0.01%new13F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP4,707$502K0.01%-19,18113F-HRTimelineGroup
Wealthcare Advisory Partners LLCin group Wealthcare Advisory Partners …4,672$498K0.01%new13F-HRTimelineGroup
MASTERINVEST Kapitalanlage GmbH4,640$495K0.04%013F-HRTimeline
GF FUND MANAGEMENT CO. LTD.4,563$487K0.01%-43,93313F-HRTimeline
Polymer Capital Management (US) LLC4,537$484K0.07%new13F-HRTimeline
CAPTRUST FINANCIAL ADVISORS4,460$475K<0.01%-8,79213F-HRTimeline
OneDigital Investment Advisors LLC4,410$470K<0.01%-83513F-HRTimeline
E Fund Management Co., Ltd.4,375$466K0.01%-6,64113F-HRTimeline