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INSMED Inc

INSM
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001104506

In the last 90 days, INSMED Inc insiders filed 0 open-market purchases and 7 sales; 667 institutions reported holding it in 13F filings for Q2 2026, worth $23.8B in total; superinvestors Maverick Capital and Duquesne Family Office hold it.

13F holders, Q3 2021

Institutional positions in INSMED Inc as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
193
−8 vs. Q2 2021
Shares held
123.4M
+4.45M (+3.7%) vs. Q2 2021
Total value
$3.40B
+$13.4M (+0.4%) vs. Q2 2021
New holders
16
75 more added
Sold out
24
63 more reduced

2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting INSM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2021: 193 institutions
Q1 2021: 199 institutionsQ2 2021: 203 institutionsQ3 2021: 193 institutionsQ4 2021: 214 institutionsQ1 2022: 224 institutionsQ2 2022: 214 institutionsQ3 2022: 238 institutionsQ4 2022: 225 institutionsQ1 2023: 230 institutionsQ2 2023: 223 institutionsQ3 2023: 252 institutionsQ4 2023: 271 institutionsQ1 2024: 288 institutionsQ2 2024: 378 institutionsQ3 2024: 414 institutionsQ4 2024: 439 institutionsQ1 2025: 442 institutionsQ2 2025: 516 institutionsQ3 2025: 566 institutionsQ4 2025: 678 institutionsQ1 2026: 675 institutionsQ2 2026: 667 institutions
Value heldQ3 2021: $3.40B
Q1 2021: $3.63BQ2 2021: $3.46BQ3 2021: $3.40BQ4 2021: $3.36BQ1 2022: $2.97BQ2 2022: $2.55BQ3 2022: $2.74BQ4 2022: $2.87BQ1 2023: $2.48BQ2 2023: $3.09BQ3 2023: $3.72BQ4 2023: $4.64BQ1 2024: $4.07BQ2 2024: $11.7BQ3 2024: $13.7BQ4 2024: $13.3BQ1 2025: $15.3BQ2 2025: $21.2BQ3 2025: $30.3BQ4 2025: $37.8BQ1 2026: $35.7BQ2 2026: $23.8B
Institutions holding INSM and their total value by quarter
QuarterHoldersValue
Q2 2026667$23.8B
Q1 2026675$35.7B
Q4 2025678$37.8B
Q3 2025566$30.3B
Q2 2025516$21.2B
Q1 2025442$15.3B
Q4 2024439$13.3B
Q3 2024414$13.7B
Q2 2024378$11.7B
Q1 2024288$4.07B
Q4 2023271$4.64B
Q3 2023252$3.72B
Q2 2023223$3.09B
Q1 2023230$2.48B
Q4 2022225$2.87B
Q3 2022238$2.74B
Q2 2022214$2.55B
Q1 2022224$2.97B
Q4 2021214$3.36B
Q3 2021193$3.40B
Q2 2021203$3.46B
Q1 2021199$3.63B

Institutions, Q3 2021

Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q2 2021.

Institutions holding INSM in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
M&G Investment Management Ltd66,428$1.86M0.01%−44,240−40.0%Reduced
SG Americas Securities, LLC77,011$2.12M0.01%+43,618+130.6%Added
Susquehanna International Group, LLP78,272$2.16M0.00%+32,397+70.6%Added
Barclays PLC83,791$2.31M0.00%+70,029+508.9%Added
Oak Ridge Investments LLC84,754$2.33M0.21%−1,962−2.3%Reduced
Mutual of America Capital Management LLC90,501$2.49M0.02%−1,306−1.4%Reduced
UBS Group AG91,110$2.51M0.00%+77,183+554.2%Added
Citigroup Inc98,332$2.71M0.00%−72,497−42.4%Reduced
New York State Common Retirement Fund98,641$2.72M0.00%−15,899−13.9%Reduced
Integral Health Asset Management, LLC100,000$2.75M0.79%+100,000New
Parametric Portfolio Associates LLC100,535$2.77M0.00%+9,738+10.7%Added
Allianz Asset Management GmbH101,080$2.78M0.00%+68,940+214.5%Added
Swedbank AB102,100$2.81M0.01%00.0%Unchanged
Legal & General Group Plc105,316$2.90M0.00%+30,215+40.2%Added
Rafferty Asset Management, LLC114,774$3.16M0.02%+27,995+32.3%Added
Dimensional Fund Advisors LP115,326$3.17M0.00%+115,326New
UBS Asset Management Americas Inc115,400$3.18M0.00%−7,600−6.2%Reduced
State of New Jersey Common Pension Fund D117,223$3.23M0.01%+21,779+22.8%Added
Rhumbline Advisers122,462$3.37M0.00%+6,601+5.7%Added
Natixis125,323$3.45M0.01%00.0%Unchanged
DekaBank Deutsche Girozentrale134,200$3.52M0.01%00.0%Unchanged
State of Wisconsin Investment Board136,300$3.75M0.01%00.0%Unchanged
Credit Suisse AG142,023$3.91M0.00%+63,895+81.8%Added
Wells Fargo & Company154,035$4.24M0.00%−78,729−33.8%Reduced
California State Teachers Retirement System155,005$4.27M0.01%+12,693+8.9%Added
Endurant Capital Management LP159,903$4.40M1.34%−100,411−38.6%Reduced
Deutsche Bank AG166,552$4.59M0.00%−2,059−1.2%Reduced
Silverarc Capital Management, LLC174,588$4.81M2.79%−2,845−1.6%Reduced
Edgestream Partners, L.P.185,515$5.11M0.32%−176,816−48.8%Reduced
Lord, Abbett & Co. LLC193,275$5.32M0.01%−2,447−1.3%Reduced
JPMorgan Chase & Co197,689$5.44M0.00%−6,740−3.3%Reduced
Putnam Investments LLC200,987$5.54M0.01%−510.0%Reduced
Altium Capital Management LP203,354$5.60M1.49%00.0%Unchanged
Woodline Partners LP213,968$5.89M0.10%−182,583−46.0%Reduced
Hennion & Walsh Asset Management, Inc.218,082$6.01M0.32%−15,061−6.5%Reduced
WCM Investment Management, LLC225,815$6.22M0.01%+66,316+41.6%Added
GW&K Investment Management, LLC227,660$6.27M0.06%+73,870+48.0%Added
California Public Employees Retirement System238,939$6.58M0.00%+12,192+5.4%Added
International Biotechnology Trust PLC241,100$6.64M1.63%+141,000+140.9%Added
Goldman Sachs Group Inc242,188$6.67M0.00%−498,371−67.3%Reduced
Swiss National Bank250,800$6.91M0.00%+23,700+10.4%Added
TD Asset Management Inc274,732$7.57M0.01%−5,496−2.0%Reduced
Rice Hall James & Associates, LLC292,801$8.06M0.30%−7,771−2.6%Reduced
Voya Investment Management LLC296,417$8.16M0.02%−61,955−17.3%Reduced
Granahan Investment Management Inc306,730$8.45M0.16%−105,723−25.6%Reduced
Scout Investments, Inc.331,865$9.14M0.14%−4,560−1.4%Reduced
Two Sigma Investments, LP335,209$9.23M0.02%+62,074+22.7%Added
Sycale Advisors (NY) LLC338,503$9.32M4.17%−7,768−2.2%Reduced
C WorldWide Group Holding A/S343,110$9.45M0.10%00.0%Unchanged
Peregrine Capital Management LLC343,649$9.46M0.20%+343,649New
D. E. Shaw & Co., Inc.363,984$10.0M0.01%−59,162−14.0%Reduced
Bank of America Corp379,815$10.5M0.00%+11,916+3.2%Added
Two Sigma Advisers, LP430,700$11.9M0.03%+191,300+79.9%Added
Hood River Capital Management LLC449,101$12.4M0.38%−17,326−3.7%Reduced
Bank of New York Mellon Corp491,516$13.5M0.00%+47,558+10.7%Added
Nuveen Asset Management, LLC535,074$14.3M0.00%−29,284−5.2%Reduced
Sofinnova Investments, Inc.535,120$14.7M0.94%−309,049−36.6%Reduced
American Century Companies Inc542,234$14.9M0.01%−110.0%Reduced
Novo Holdings A/S695,840$19.2M0.99%00.0%Unchanged
AXA S.A.700,200$19.3M0.05%+71,772+11.4%Added
Principal Financial Group Inc757,514$20.9M0.01%+35,722+4.9%Added
Charles Schwab Investment Management Inc828,953$22.8M0.01%+32,155+4.0%Added
Candriam Luxembourg S.C.A.879,547$24.2M0.16%+374,306+74.1%Added
Sectoral Asset Management Inc888,700$24.5M2.04%−25,000−2.7%Reduced
Morgan Stanley893,972$24.6M0.00%+64,221+7.7%Added
Eagle Asset Management Inc931,213$25.6M0.12%−102,345−9.9%Reduced
Norges Bank938,898$25.9M0.01%−166,193−15.0%Reduced
Suvretta Capital Management, LLC998,732$27.5M0.47%+557,667+126.4%Added
Northern Trust Corp1,201,140$33.1M0.01%+50,017+4.3%Added
First Light Asset Management, LLC1,227,283$33.8M2.23%−158,365−11.4%Reduced
Loomis Sayles & Co L P1,234,661$34.0M0.04%+459,411+59.3%Added
Samlyn Capital, LLC1,263,403$34.8M0.51%+52,689+4.4%Added
Avidity Partners Management LP1,292,000$35.6M0.91%+141,950+12.3%Added
Fairmount Funds Management LLC1,313,607$36.2M13.16%+29,720+2.3%Added
Polar Capital Holdings Plc1,798,209$49.5M0.27%+861,771+92.0%Added
Geode Capital Management, LLC2,008,497$55.3M0.01%+109,767+5.8%Added
Baker Bros. Advisors LP2,156,001$59.4M0.26%00.0%Unchanged
Holocene Advisors, LP2,187,275$60.2M0.35%−314,004−12.6%Reduced
Alliancebernstein L.P.2,215,802$61.0M0.02%+169,447+8.3%Added
Pictet Asset Management SA2,909,200$80.1M0.09%+2,909,200New
Macquarie Group Ltd3,375,266$93.0M0.08%+185,631+5.8%Added
Bellevue Group AG3,385,645$93.2M0.95%+264,744+8.5%Added
Franklin Resources Inc3,447,788$95.0M0.04%−9940.0%Reduced
Point72 Asset Management, L.P.3,591,988$98.9M0.47%+716,392+24.9%Added
FMR LLC4,002,094$110.2M0.01%−333,312−7.7%Reduced
State Street Corp4,163,613$114.7M0.01%+589,305+16.5%Added
Ameriprise Financial Inc4,169,652$114.8M0.04%+104,881+2.6%Added
William Blair Investment Management, LLC4,976,041$137.0M0.39%−50,143−1.0%Reduced
Palo Alto Investors LP6,019,106$165.8M10.01%00.0%Unchanged
Janus Henderson Group PLC7,987,899$220.0M0.10%+35,898+0.5%Added
BlackRock Inc.9,210,873$253.7M0.01%+550,751+6.4%Added
Vanguard Group Inc10,833,201$298.3M0.01%+186,495+1.8%Added
Price T Rowe Associates Inc14,740,432$406.0M0.04%+367,747+2.6%Added
Westfield Capital Management Co LP0$00.00%−967,079−100.0%Sold out
Citadel Advisors LLC0$00.00%−690,764−100.0%Sold out
Cormorant Asset Management, LP0$00.00%−250,000−100.0%Sold out
Deerfield Management Company, L.P. (Series C)0$00.00%−200,000−100.0%Sold out
Tekla Capital Management LLC0$00.00%−98,387−100.0%Sold out
Bank of Montreal0$00.00%−84,694−100.0%Sold out
Monashee Investment Management LLC0$00.00%−87,000−100.0%Sold out