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Disclosery

INSM INSMED INC

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Stock (common), issuer CIK 1104506

662 managers (678 13F filers) reported a position in INSM shares at 2025-12-31, 217,367,933 shares in all. 166 filers opened a position and 81 filers sold out during the quarter.

Managers
662
13F filers
678
New
166
Added
241
Reduced
180
Sold out
81
Shares held by filers
217,367,933

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
THORNBURG INVESTMENT MANAGEMENT INC37,971$6.61M0.08%-6,07713F-HRTimeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …37,507$6.53M0.03%new13F-HRTimeline
Natixis Investment Managersgroup of 2 filers holding37,168$6.47M-5,318Timeline
Simplify Asset Management Inc.36,890$6.42M0.11%+17,22613F-HRTimeline
Orion Porfolio Solutions, LLC36,586$6.37M0.05%-10713F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK36,306$6.32M0.01%new13F-HRTimelineGroup
Andra AP-fonden36,300$6.32M0.08%new13F-HRTimeline
Freestone Grove Partners LP36,200$6.3M0.05%new13F-HRTimeline
NWAM LLC38,982$6.23M0.35%-10,55613F-HRTimeline
Mariner, LLCin group Mariner, LLC35,272$6.14M0.01%+6,40313F-HRTimelineGroup
MML INVESTORS SERVICES, LLC34,190$5.95M0.01%-6,81013F-HRTimeline
KBC Group NVin group KBC Group NV34,013$5.92M0.01%+24,39613F-HRTimelineGroup
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…33,773$5.88M0.01%new13F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding33,477$5.83M+5,462Timeline
TEACHER RETIREMENT SYSTEM OF TEXAS33,219$5.78M0.02%-13,41813F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC32,155$5.6M0.02%-3,06013F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC32,049$5.58M0.12%+1,69513F-HRTimeline
Utah Retirement Systems32,001$5.57M0.05%+1,27213F-HRTimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…30,527$5.31M0.05%-6,89713F-HRTimelineGroup
PensionDanmark Pensionsforsikringsaktie…30,295$5.27M0.05%13F-HRTimeline
Caisse de depot et placement du Quebec29,500$5.13M0.01%-134,90013F-HRTimeline
GordonMD Global Investments LPin group GordonMD Global Investments LP28,587$4.98M3.57%13F-HRTimelineGroup
KVP Capital Advisors, LP28,497$4.96M5.12%13F-HRTimeline
Atle Fund Management AB27,873$4.85M1.55%new13F-HRTimeline
PROFUND ADVISORS LLC27,844$4.85M0.15%+16,47113F-HRTimeline
Compound Planning, Inc.27,651$4.81M0.14%+3,91213F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC26,954$4.69M0.02%-4,66713F-HRTimelineGroup
iA Global Asset Management Inc.26,682$4.64M0.06%+26,51613F-HRTimeline
MCRAE CAPITAL MANAGEMENT INC26,675$4.64M0.95%-52013F-HRTimeline
SummitTX Capital, L.P.25,967$4.52M0.14%+17,16713F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC25,900$4.51M0.01%-326,98713F-HRTimeline
ACUTA CAPITAL PARTNERS, LLC25,878$4.5M3.06%-12,71413F-HRTimeline
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC25,400$4.42M0.09%+11,94113F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 2 filers holding25,231$4.39M+516Timeline
SHELTON CAPITAL MANAGEMENT24,319$4.23M0.08%new13F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…22,303$3.88M0.03%new13F-HRTimelineGroup
PEAK6 LLCin group PEAK6 LLC22,190$3.86M0.11%new13F-HR/ATimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC21,929$3.82M0.02%+8,70313F-HRTimeline
Campbell & CO Investment Adviser LLC21,910$3.81M0.18%+2,85013F-HRTimeline
Rakuten Group, Inc.group of 2 filers holding21,619$3.81M+20,619Timeline
EFG International AGin group EFG International AG21,869$3.81M0.07%13F-HRTimelineGroup
Gotham Asset Management, LLC21,762$3.79M0.01%+20,11313F-HRTimeline
MACKENZIE FINANCIAL CORP21,620$3.76M<0.01%+4,80113F-HRTimeline
Sanctuary Advisors, LLC21,336$3.71M0.02%+1,80213F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC21,310$3.71M0.02%+10,51213F-HRTimelineGroup
ASR Vermogensbeheer N.V.21,108$3.67M0.04%new13F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD21,000$3.65M<0.01%-41,01313F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP20,865$3.63M<0.01%+5,30513F-HR/ATimelineGroup
STOREBRAND ASSET MANAGEMENT AS20,627$3.59M0.01%new13F-HRTimeline
SBI Okasan Asset Management Co.Ltd.20,200$3.56M0.2%13F-HRTimeline
Atria Investments, Inc20,385$3.55M0.04%-1,02813F-HRTimeline
NEXT CENTURY GROWTH INVESTORS LLC20,301$3.53M0.25%+4,45213F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …20,008$3.49M<0.01%new13F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC19,989$3.48M<0.01%-6,12013F-HRTimelineGroup
Baird Financial Group, Inc.in group Baird Financial Group, Inc.19,684$3.43M0.01%-2,70213F-HRTimelineGroup
Silvant Capital Management LLC19,584$3.41M0.12%new13F-HRTimeline
Quantinno Capital Management LP19,541$3.4M0.01%+6,76313F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC19,399$3.38M<0.01%-1,96213F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.19,276$3.35M<0.01%-3,47213F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…19,020$3.31M0.01%013F-HRTimeline
CIBC Bancorp USA Inc.group of 2 filers holding18,332$3.19M+18,153Timeline
Cinctive Capital Management LP17,945$3.12M0.18%-48,23613F-HRTimeline
Avidity Partners Management LP17,700$3.08M0.89%+6,10013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC17,542$3.05M0.01%+7,07613F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …17,291$3.01M0.11%+14,45413F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…16,775$2.92M0.01%+7,86313F-HR/ATimelineGroup
AMALGAMATED BANK16,743$2.91M0.02%+2,21013F-HRTimeline
TOBAM16,308$2.84M0.7%-2,78913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Verition Fund Management LLC16,043$2.79M0.02%-12,10913F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP15,870$2.76M0.04%new13F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP15,733$2.74M<0.01%-23,33013F-HRTimelineGroup
Pacer Advisors, Inc.15,583$2.71M0.01%new13F-HR/ATimeline
WEST MICHIGAN ADVISORS, LLC15,418$2.68M0.62%-2,20113F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…15,166$2.64M0.01%-1,55013F-HRTimelineGroup
Federation des caisses Desjardins du Qu…15,142$2.63M0.01%+1,91913F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP14,732$2.56M0.12%+5,49013F-HRTimeline
Louisiana State Employees Retirement Sy…14,300$2.49M0.04%new13F-HRTimeline
Investment Management Corp of Ontario14,221$2.48M0.03%new13F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…14,004$2.44M0.01%+5,28813F-HRTimelineGroup
Eurizon Capital SGR S.p.A.13,969$2.43M0.01%13F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A13,927$2.42M0.01%new13F-HRTimelineGroup
Bellevue Group AGin group Bellevue Group AG13,915$2.42M0.05%-6,33613F-HRTimelineGroup
OAK RIDGE INVESTMENTS LLC13,813$2.4M0.15%-8,32313F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC13,505$2.35M<0.01%-778,22913F-HRTimelineGroup
Main Management ETF Advisors, LLCin group Main Management ETF Advisors,…13,311$2.32M0.08%+13613F-HRTimelineGroup
Fideuram Asset Management (Ireland) dac11,158$2.31M0.18%13F-HRTimeline
F/m Investments LLC13,241$2.3M0.09%+2,17413F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …13,151$2.29M0.03%-2,70213F-HRTimelineGroup
Atlatl Advisers LLC12,927$2.25M0.86%new13F-HRTimeline
Informed Momentum Co LLC12,924$2.25M0.25%-35,04813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…12,891$2.24M0.01%+1,51813F-HRTimelineGroup
Elo Mutual Pension Insurance Co12,409$2.16M0.03%-2,67713F-HRTimeline
October Effect Ltd12,121$2.11M2.32%new13F-HRTimeline
MYDA Advisors LLC12,000$2.09M0.59%013F-HRTimeline
Arrowpoint Investment Partners (Singapo…in group Arrowpoint Investment Partner…11,556$2.01M0.3%new13F-HRTimelineGroup
Osmosis Investment Management UK Ltd11,325$1.97M0.05%13F-HRTimeline
Draper Asset Management, LLC11,312$1.97M1.04%+97313F-HRTimeline
PKO Investment Management Joint-Stock Co11,300$1.97M0.16%new13F-HRTimeline
SECTORAL ASSET MANAGEMENT INC11,182$1.95M1.56%-2,24313F-HRTimeline
Gulf International Bank (UK) Ltd11,033$1.92M0.06%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC10,922$1.9M0.07%new13F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…10,427$1.83M<0.01%+2,82913F-HRTimeline
Maryland State Retirement & Pension Sys…10,484$1.82M0.04%+1,20013F-HRTimeline
WCM INVESTMENT MANAGEMENT, LLC10,368$1.8M<0.01%-5,13213F-HRTimeline
AustralianSuper Pty Ltd10,005$1.74M0.01%new13F-HRTimeline
Ishara Investments LP10,000$1.74M2.03%13F-HRTimeline
Wealthfront Advisers LLC9,991$1.74M<0.01%new13F-HRTimeline
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS9,989$1.74M0.03%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC9,823$1.71M0.02%new13F-HRTimelineGroup
AG2R LA MONDIALE GESTION D'ACTIFS9,677$1.68M0.07%new13F-HRTimeline
Yorktown Management & Research Co Inc9,600$1.67M1.34%013F-HRTimeline
Vestmark Advisory Solutions, Inc.9,514$1.66M0.02%+6,96613F-HRTimeline
Ikarian Capital, LLCin group Ikarian Capital, LLC9,337$1.63M0.21%-4,41413F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp9,150$1.59M0.01%+5,05613F-HR/ATimelineGroup
QRG CAPITAL MANAGEMENT, INC.9,030$1.57M0.02%+2,61013F-HRTimeline
Waldron Private Wealth LLC8,810$1.53M0.06%+1013F-HRTimeline
Daiichi Life Insurance Co., Ltd.in group Daiichi Life Insurance Co., L…8,633$1.5M0.04%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
HIGHLAND CAPITAL MANAGEMENT, LLC8,558$1.49M0.07%new13F-HRTimeline
DekaBank Deutsche Girozentrale50,000$1.49M<0.01%013F-HRTimeline
ROYAL LONDON ASSET MANAGEMENT LTD8,510$1.48M<0.01%new13F-HRTimeline
S&CO INC8,300$1.44M0.09%013F-HRTimeline
Quantitative Investment Management, LLC8,148$1.42M0.14%new13F-HRTimeline
FORA Capital, LLC7,942$1.38M0.17%new13F-HRTimeline
CASTLEARK MANAGEMENT LLC7,790$1.36M0.04%+2,06013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\7,748$1.35M<0.01%-90313F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…7,710$1.34M0.04%new13F-HRTimelineGroup
AlphaCentric Advisors LLC7,588$1.32M1.32%13F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…7,364$1.28M0.09%-20,83013F-HRTimelineGroup
COMERICA BANK7,337$1.28M0.01%-154,46713F-HRTimeline
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD7,293$1.27M0.01%-642,55413F-HRTimelineGroup
&PARTNERS7,259$1.26M0.01%+1,21313F-HRTimeline
Norinchukin Bank, Thein group Norinchukin Bank, The7,242$1.26M0.01%new13F-HRTimelineGroup
Snowden Capital Advisors LLC7,234$1.26M0.03%-53513F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth7,174$1.25M<0.01%+2,63813F-HRTimelineGroup
HIMENSION CAPITAL (SINGAPORE) PTE. LTD.7,164$1.25M0.08%-1,42313F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…6,860$1.19M<0.01%+4913F-HRTimelineGroup
PRAXIS INVESTMENT MANAGEMENT INC6,774$1.18M0.07%+33113F-HRTimeline
North Dakota State Investment Board6,558$1.14M0.04%13F-HRTimeline
J. Safra Sarasin Holding AGin group J. Safra Sarasin Holding AG6,461$1.12M0.02%-1,09613F-HRTimelineGroup
Vise Technologies, Inc.6,314$1.1M0.02%+98213F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd6,098$1.06M0.03%new13F-HRTimelineGroup
Park Capital Management, LLC / WI5,989$1.04M0.75%new13F-HRTimeline
Sequoia Financial Advisors, LLC5,940$1.03M0.01%+3,63313F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC5,937$1.03M<0.01%-5,03313F-HRTimelineGroup
Havemeyer Place LP5,891$1.03M0.2%13F-HRTimeline
GROUPAMA ASSET MANAGMENT5,590$973K0.01%-7,58513F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV5,567$969K<0.01%+2,04513F-HRTimeline
IEQ CAPITAL, LLC5,563$968K<0.01%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC5,488$955K<0.01%-4513F-HRTimeline
CAPTRUST FINANCIAL ADVISORS5,384$937K<0.01%-23813F-HRTimeline
Fulton Bank, N.A.5,325$927K0.03%+14613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,297$922K0.02%+3,95513F-HRTimelineGroup
E. Ohman J:or Asset Management AB5,239$912K0.02%new13F-HRTimeline
PINKERTON WEALTH, LLC5,148$896K0.09%new13F-HRTimeline
Moody Aldrich Partners LLC5,036$876K0.16%-51513F-HRTimeline
OneDigital Investment Advisors LLC5,032$876K0.01%+85313F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC5,014$873K0.01%-54413F-HRTimelineGroup
Voleon Capital Management LP4,883$850K0.02%-42,78413F-HRTimeline
Meeder Advisory Services, Inc.group of 2 filers holding4,827$840K+571Timeline
INTRUST BANK NA4,735$824K0.07%-69213F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG4,733$824K0.01%-34813F-HRTimelineGroup
Private Advisor Group, LLC4,667$812K<0.01%-6413F-HRTimeline
RICE HALL JAMES & ASSOCIATES, LLC4,536$789K0.04%-75,13113F-HRTimeline
Summit Trail Advisors, LLC4,464$777K0.01%+2,73113F-HRTimeline
CWM, LLCin group CWM, LLC4,347$757K<0.01%+1,89213F-HRTimelineGroup
Vestcor Inc4,238$738K0.02%new13F-HRTimeline
UniSuper Management Pty Ltd4,200$731K<0.01%new13F-HRTimeline
UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT…4,170$726K0.1%new13F-HRTimeline
Edgestream Partners, L.P.4,116$716K0.02%new13F-HRTimeline
INDEPENDENT FINANCIAL GROUP, LLC4,113$716K0.02%+2,57813F-HRTimeline
MidFirst Bank4,012$698K0.06%13F-HRTimeline
Ethic Inc.4,001$696K0.01%+2,51213F-HRTimeline
OXFORD ASSET MANAGEMENT LLP3,931$684K0.24%-4,37713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…3,930$684K0.01%+1,66713F-HRTimelineGroup
GraniteShares Advisors LLC3,905$680K0.41%new13F-HR/ATimeline
PRUDENTIAL PLCin group PRUDENTIAL PLC3,902$679K0.01%new13F-HRTimelineGroup
COLDSTREAM CAPITAL MANAGEMENT INC3,848$670K0.01%-67213F-HRTimeline
Global Retirement Partners, LLC3,838$668K0.01%+1,99013F-HRTimeline
Persistent Asset Partners Ltd3,692$643K0.31%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC3,605$626K<0.01%+1,40213F-HRTimelineGroup
NewEdge Wealth, LLC3,540$616K0.01%+50913F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…3,468$604K0.16%-1,11913F-HRTimelineGroup
ICICI Prudential Asset Management Co Ltd3,422$596K0.07%new13F-HRTimeline
Tema ETFs LLC3,395$591K0.05%-90213F-HRTimeline
Cambridge Investment Research Advisors,…3,391$590K<0.01%+35413F-HRTimeline
TCW GROUP INCin group TCW GROUP INC3,285$572K<0.01%new13F-HRTimelineGroup
Beacon Financial Advisory LLC3,283$571K0.13%-5,19713F-HRTimeline
PIER 88 INVESTMENT PARTNERS LLC3,250$566K0.13%-1,05013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC3,227$562K0.01%new13F-HRTimeline
SAGESPRING WEALTH PARTNERS, LLC3,163$551K0.01%+43413F-HRTimeline
NorthRock Partners, LLC3,118$543K0.01%new13F-HRTimeline
PSP Research LLC3,049$531K0.46%13F-HRTimeline
HighTower Advisors, LLC3,036$528K<0.01%+34913F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.3,000$522K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Leonteq Securities AG3,000$522K0.03%+55013F-HRTimeline
Harvest Investment Services, LLC2,990$520K0.1%new13F-HRTimeline
True Freedom Investing, LLC2,963$516K0.04%new13F-HRTimeline
Crossmark Global Holdings, Inc.2,954$514K0.01%+76113F-HRTimeline
Siemens Fonds Invest GmbH2,949$513K0.03%new13F-HRTimeline
Everhart Financial Group, Inc.2,908$506K0.05%new13F-HRTimeline