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Disclosery

INSM INSMED INC

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Stock (common), issuer CIK 1104506

655 managers (675 13F filers) reported a position in INSM shares at 2026-03-31, 220,940,103 shares in all. 89 filers opened a position and 95 filers sold out during the quarter.

Managers
655
13F filers
675
New
89
Added
288
Reduced
216
Sold out
95
Shares held by filers
220,940,103

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
Siemens Fonds Invest GmbH3,080$504K0.03%+13113F-HRTimeline
Moody Aldrich Partners LLC3,044$498K0.09%-1,99213F-HRTimeline
Whalen Wealth Management Inc.2,969$485K0.26%new13F-HRTimeline
Callan Family Office, LLC2,968$485K0.01%+19713F-HRTimeline
Cynosure Group, LLC2,947$482K0.06%+24113F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC2,947$482K0.01%+17813F-HRTimeline
Everhart Financial Group, Inc.2,934$480K0.04%+2613F-HRTimeline
Livforsakringsbolaget Skandia, Omsesidi…4,412$470K0.02%+2,91213F-HRTimeline
Gilbert & Cook, Inc.2,841$465K0.06%-813F-HRTimeline
Brooklyn Investment Group2,810$459K0.01%-2913F-HRTimeline
Headlands Technologies LLC2,808$459K0.05%new13F-HRTimeline
SAGESPRING WEALTH PARTNERS, LLC2,765$452K0.01%-39813F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.2,763$452K<0.01%new13F-HRTimelineGroup
Cambridge Investment Research Advisors,…2,719$445K<0.01%-67213F-HRTimeline
GABELLI FUNDS LLCin group GAMCO Investors (Gabelli)2,700$442K<0.01%+86013F-HRTimelineGroup
Scissortail Wealth Management, LLC2,500$409K0.08%013F-HRTimeline
Edgestream Partners, L.P.2,499$409K0.01%-1,61713F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP2,458$402K0.04%-12,27413F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…2,445$400K0.03%+1,80013F-HRTimeline
Blueshift Asset Management, LLC2,424$396K0.12%-24413F-HRTimeline
Centiva Capital, LP2,347$384K0.02%+1,82913F-HRTimeline
Abacus Wealth Partners, LLC2,338$382K0.03%-6113F-HRTimeline
IFP Advisors, Inc2,291$375K0.01%-3113F-HRTimeline
Parallel Advisors, LLC2,291$375K0.01%+26613F-HR/ATimeline
Sowell Financial Services LLC2,260$370K0.01%+22913F-HRTimeline
CI INVESTMENTS INC.in group CI INVESTMENTS INC.2,214$362K<0.01%-26313F-HRTimelineGroup
OMERS ADMINISTRATION Corp2,204$360K<0.01%new13F-HRTimeline
Values First Advisors, Inc.2,203$360K0.19%+14613F-HRTimeline
Fieldview Capital Management, LLC2,199$360K0.1%new13F-HRTimeline
Farther Finance Advisors, LLC2,162$356K<0.01%-15413F-HRTimeline
BINGHAM PRIVATE WEALTH, LLC2,170$355K0.28%-54013F-HRTimeline
CHOREO, LLC2,161$353K<0.01%+26413F-HRTimeline
Cooper Financial Group2,141$350K0.04%-10913F-HRTimeline
SIH Partners, LLLPin group SIH Partners, LLLP2,138$350K0.01%new13F-HRTimelineGroup
Keenan, LLC2,121$347K0.29%013F-HRTimeline
Alphadyne Asset Management LP2,119$346K0.05%+1,75513F-HRTimeline
Kingsview Wealth Management, LLC2,089$342K<0.01%+1813F-HRTimeline
REGIONS FINANCIAL CORPin group REGIONS FINANCIAL CORP2,076$339K<0.01%-6913F-HRTimelineGroup
Metis Global Partners, LLC2,041$334K0.01%-12313F-HRTimeline
Summit Financial, LLC2,040$334K<0.01%+20613F-HRTimeline
CIGNA INVESTMENTS INC /NEWin group CIGNA INVESTMENTS INC /NEW2,031$333K0.05%013F-HRTimelineGroup
Cravens & Co Advisors, LLC2,020$330K0.21%013F-HRTimeline
Marex Group Ltdin group Marex Group Ltd2,010$329K<0.01%new13F-HRTimelineGroup
JCIC Asset Management Inc.2,003$328K0.1%-6113F-HRTimeline
Cornerstone Wealth Management, LLC2,000$327K0.02%013F-HRTimeline
GTS SECURITIES LLC1,991$326K0.01%new13F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC1,980$324K<0.01%+42713F-HRTimelineGroup
Ellevest, Inc.1,966$321K0.04%new13F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA1,916$313K<0.01%+9813F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC1,913$313K0.04%new13F-HRTimeline
Merit Financial Group, LLC1,908$312K<0.01%+33113F-HRTimeline
LongView Wealth Management2,000$307K0.08%013F-HRTimeline
Mount Lucas Management LP1,844$302K0.11%new13F-HRTimeline
OSTRUM ASSET MANAGEMENT1,828$299K0.02%+2713F-HRTimeline
GAMMA Investing LLC1,814$297K0.01%+14113F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC1,789$293K<0.01%+14213F-HRTimelineGroup
HB Wealth Management, LLC1,786$292K<0.01%+46813F-HRTimeline
American Trust1,710$280K0.02%+19613F-HRTimeline
Frank, Rimerman Advisors LLC1,697$277K0.02%new13F-HRTimeline
VARCOV Co.1,649$270K0.1%new13F-HRTimeline
Smartleaf Asset Management LLC1,747$268K0.01%+30413F-HRTimeline
NORDEN GROUP LLC1,594$261K0.03%new13F-HRTimeline
Meridian Wealth Management, LLC1,529$250K0.01%-11113F-HRTimeline
ANB BANK1,507$246K0.1%-44113F-HRTimeline
EVERPAR ADVISORS LLC1,503$246K0.08%-7013F-HRTimeline
Stratos Wealth Partners, LTD.in group Stratos Wealth Partners, LTD.1,502$246K<0.01%-13513F-HRTimelineGroup
Knollwood Investment Advisory, LLC1,501$245K0.02%013F-HRTimeline
CreativeOne Wealth, LLCin group CreativeOne Wealth, LLC1,485$243K0.01%+3513F-HRTimelineGroup
Allegheny Financial Group1,479$242K0.03%-213F-HRTimeline
Independent Advisor Alliance1,434$234K<0.01%+3513F-HRTimeline
JOURNEY STRATEGIC WEALTH LLC1,433$234K0.01%+26213F-HRTimeline
Dynasty Wealth Management, LLC1,422$233K<0.01%new13F-HRTimeline
WEALTH ALLIANCE, LLC1,421$232K0.02%+2813F-HRTimeline
DIVERSIFY WEALTH MANAGEMENT, LLCin group Diversify Advisory Services, …1,704$230K<0.01%new13F-HRTimelineGroup
Fiduciary Trust Coin group Fiduciary Trust Co1,389$227K<0.01%new13F-HRTimelineGroup
OpenArc Corporate Advisory, LLC1,334$218K<0.01%new13F-HRTimeline
FIDELIS CAPITAL PARTNERS, LLC1,325$217K0.02%+5413F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC1,307$214K<0.01%-1,22413F-HRTimelineGroup
JGP Global Gestao de Recursos Ltda.1,296$212K0.95%-1,20313F-HRTimeline
Charter Capital Management, LLC\DE1,275$208K0.1%013F-HRTimeline
Leonteq Securities AG1,270$208K0.01%-1,73013F-HRTimeline
Coastal Bridge Advisors, LLC1,264$207K0.01%-17613F-HRTimeline
Brucke Financial, Inc.1,253$205K0.1%-12913F-HRTimeline
Morgan Creek Capital Management, LLC1,251$205K0.14%new13F-HRTimeline
KRS Capital Management, LLC1,244$203K0.12%new13F-HRTimeline
MAI Capital Management1,227$201K<0.01%+67213F-HRTimeline
Berbice Capital Management LLC1,200$196K0.13%+50013F-HRTimeline
SIGNATUREFD, LLC1,165$190K<0.01%+27913F-HRTimeline
FIRST HORIZON CORP1,083$177K0.01%-2313F-HRTimeline
Harel Insurance Investments & Financial…in group Harel Insurance Investments &…1,084$177K<0.01%new13F-HRTimelineGroup
LRI Investments, LLC1,048$171K0.02%-2513F-HRTimeline
Rossby Financial, LCC1,033$170K0.04%+513F-HRTimeline
Manchester Capital Management LLC1,017$166K0.02%-313F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC936$153K<0.01%-81,44913F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…826$135K<0.01%+7913F-HR/ATimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC823$135K<0.01%-14513F-HRTimelineGroup
E Fund Management (Hong Kong) Co., Ltd.816$133K0.06%+10313F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management765$125K<0.01%013F-HRTimelineGroup
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…758$124K0.01%+41013F-HRTimelineGroup
Ascentis Independent Advisorsin group Ascentis Wealth Management, L…743$121K0.01%new13F-HRTimelineGroup
Wilmington Savings Fund Society, FSB730$119K<0.01%new13F-HRTimeline
Allworth Financial LP726$119K<0.01%+9113F-HRTimeline
Pinnacle Wealth Planning Services, Inc.723$118K0.01%-12013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…699$115K0.01%+36913F-HRTimeline
Steward Partners Investment Advisory, L…701$115K<0.01%-813F-HRTimeline
Hilltop National Bank662$108K0.03%+4213F-HRTimeline
Quent Capital, LLC616$101K0.01%+57313F-HRTimeline
Avanza Fonder AB445$72.8K<0.01%-25913F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC444$72.7K<0.01%+20613F-HRTimeline
RiverPark Advisors, LLCin group RiverPark Advisors, LLC439$71.8K0.03%+10713F-HRTimelineGroup
Geneos Wealth Management Inc.414$67.7K<0.01%013F-HRTimeline
Versant Capital Management, Inc376$61.5K0.01%+13613F-HRTimeline
Private Wealth Asset Management, LLC333$54.5K0.01%013F-HRTimeline
Bayforest Capital Ltd326$53.3K0.06%-1,09513F-HRTimeline
Blue Trust, Inc.324$53K<0.01%-1613F-HRTimeline
SBI Securities Co., Ltd.304$49.7K<0.01%-56413F-HRTimeline
TD Waterhouse Canada Inc.300$49.5K<0.01%new13F-HRTimeline
UMB Bank, n.a.287$46.9K<0.01%+4413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Advisory Services Network, LLC284$46.4K<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…283$46.3K<0.01%-14713F-HRTimelineGroup
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…280$45.8K0.02%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
HighMark Wealth Management LLC250$40.9K0.02%013F-HRTimeline
Larson Financial Group LLC247$40.4K<0.01%-913F-HRTimeline
Timothy G. Youngquist 2020 Irrevocable …240$39.2K0.02%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC240$39K<0.01%-3,36513F-HRTimelineGroup
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK238$38.9K<0.01%+5113F-HRTimelineGroup
MassMutual Private Wealth & Trust, FSB228$37.3K<0.01%+1013F-HRTimeline
Kemnay Advisory Services Inc.219$35.8K0.01%+13513F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC214$35K<0.01%013F-HRTimelineGroup
Stone House Investment Management, LLC200$32.7K0.01%-213F-HRTimeline
Destiny Wealth Partners, LLC175$28.6K<0.01%new13F-HRTimeline
Raiffeisen Bank International AGin group Raiffeisen Bank International…184$28.2K<0.01%013F-HRTimelineGroup
J.Safra Asset Management Corp161$26.3K<0.01%+13613F-HRTimeline
CX Institutional150$25K<0.01%new13F-HRTimeline
Arax Advisory Partners152$24.9K<0.01%-21513F-HRTimeline
V-Square Quantitative Management LLC143$23.4K<0.01%new13F-HRTimeline
WELLINGTON-ALTUS USA INC.219$23.4K0.01%-1613F-HRTimeline
Osbon Capital Management LLC137$22.4K0.02%013F-HRTimeline
Parallax Volatility Advisers, L.P.150$21.1K<0.01%-1,74013F-HRTimeline
CONTRAVISORY INVESTMENT MANAGEMENT, INC.122$19.9K<0.01%013F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC120$19.6K<0.01%+3413F-HRTimeline
Cedar Mountain Advisors, LLC118$19.3K<0.01%new13F-HRTimeline
Owl Creek Wealth Partners LLC115$18.8K0.01%13F-HRTimeline
2UniFi Bank114$18.6K0.01%+5213F-HRTimeline
AdvisorNet Financial, Inc108$17.7K<0.01%-81413F-HRTimeline
WPG Advisers, LLC99$16.2K0.01%-1913F-HRTimeline
Covestor Ltd86$14K0.01%-8113F-HRTimeline
Truvestments Capital LLC84$13.7K<0.01%013F-HRTimeline
Sound Income Strategies, LLC79$13K<0.01%-3513F-HRTimeline
Catalyst Capital Advisors LLC77$12.6K<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.76$12.4K<0.01%-4513F-HRTimeline
Sunbelt Securities, Inc.74$12.1K<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC72$11.8K<0.01%+3613F-HRTimeline
Basecamp Wealth Advisors LLC71$11.6K<0.01%+2313F-HRTimeline
WHITTIER TRUST CO70$11.5K<0.01%new13F-HRTimeline
Grove Bank & Trust69$11.3K<0.01%+113F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC68$11.1K<0.01%new13F-HRTimeline
SWISS RE LTDin group SWISS RE LTD62$10.1K0.06%013F-HRTimelineGroup
Fourth Dimension Wealth, LLC57$9.32K<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…57$9.32K<0.01%+2213F-HRTimeline
Salomon & Ludwin, LLC55$8.93K<0.01%+313F-HRTimeline
FINANCIAL CONSULATE, INC54$8.83K<0.01%+113F-HRTimeline
Root Financial Partners, LLC52$8.5K<0.01%+313F-HRTimeline
Cornerstone Planning Group LLC60$8.37K<0.01%+2213F-HRTimeline
PRIVATE TRUST CO NA50$8.18K<0.01%013F-HRTimeline
Signature Equity Partners, LLC43$7.03K<0.01%+2113F-HRTimeline
Sachetta, LLC42$6.87K<0.01%+1413F-HRTimeline
Dunhill Financial, LLC41$6.79K<0.01%+3813F-HRTimeline
CVA Family Office, LLC40$6.54K<0.01%+3813F-HRTimeline
Cromwell Holdings LLC40$6.54K<0.01%+1313F-HRTimeline
PENSION & WEALTH MANAGEMENT ADVISORS, I…40$6.54K<0.01%new13F-HRTimeline
Bell Investment Advisors, Inc38$6.21K<0.01%-3613F-HRTimeline
Wall Street Financial Group, Inc.38$6.21K<0.01%new13F-HRTimeline
JFS WEALTH ADVISORS, LLC37$6.05K<0.01%-213F-HRTimeline
Fairscale Capital, LLC37$6.05K<0.01%013F-HRTimeline
Dogwood Wealth Management LLC36$5.89K<0.01%+1113F-HRTimeline
Aventura Private Wealth, LLC36$5.89K<0.01%013F-HRTimeline
LANARK FINANCIAL, INC.36$5.89K<0.01%+1213F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO35$5.72K<0.01%+1113F-HRTimelineGroup
WOLFF WIESE MAGANA LLC34$5.56K<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC33$5.4K<0.01%013F-HRTimeline
S&T Bank/PA33$5.4K<0.01%+1513F-HRTimeline
Parkside Financial Bank & Trust31$5.07K<0.01%-213F-HRTimeline
JPL Wealth Management, LLC31$5.07K<0.01%new13F-HR/ATimeline
Avion Wealth34$5K<0.01%-413F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors30$4.96K<0.01%+113F-HRTimelineGroup
EVERMAY WEALTH MANAGEMENT LLC30$4.91K<0.01%013F-HRTimeline
WEBSTER BANK, N. A.30$4.91K<0.01%013F-HRTimeline
Clearstead Trust, LLC29$4.74K<0.01%013F-HRTimeline
Retirement Wealth Solutions LLC29$4.74K<0.01%-1313F-HRTimeline
Addison Advisors LLC26$4.25K<0.01%new13F-HRTimeline
True Wealth Design, LLC26$4.23K<0.01%+213F-HRTimeline
Strategic Wealth Advisors LLC29$4K<0.01%013F-HRTimeline
Aster Capital Management (DIFC) Ltd52$3.97K<0.01%new13F-HRTimeline
Park Place Capital Corp23$3.76K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC21$3.43K<0.01%+913F-HR/ATimeline
Fortitude Family Office, LLC21$3.43K<0.01%+213F-HRTimeline
THURSTON, SPRINGER, MILLER, HERD & TITA…20$3.27K<0.01%013F-HRTimeline
Torren Management, LLC19$3.11K<0.01%-81313F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.18$3K<0.01%-413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.