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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, Q2 2021

Institutional positions in INSMED Inc as of Jun 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
203
+6 vs. Q1 2021
Shares held
121.5M
+15.7M (+14.9%) vs. Q1 2021
Total value
$3.46B
−$145.5M (−4.0%) vs. Q1 2021
New holders
30
89 more added
Sold out
24
51 more reduced

2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2021: 203 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 heldQ2 2021: $3.46B
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, Q2 2021

Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q1 2021.

Institutions holding INSM in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
ProShare Advisors LLC47,449$1.35M0.00%+6,142+14.9%Added
Erste Asset Management GmbH47,600$1.40M0.03%00.0%Unchanged
Russell Investments Group, Ltd.50,716$1.44M0.00%−10,430−17.1%Reduced
American International Group, Inc.57,859$1.65M0.01%−6,804−10.5%Reduced
Manufacturers Life Insurance Company, The58,024$1.65M0.00%+1,191+2.1%Added
Gyon Technologies Capital Management, LP60,296$1.72M0.56%+52,129+638.3%Added
Knights of Columbus Asset Advisors LLC61,277$1.74M0.16%+14,604+31.3%Added
Legal & General Group Plc75,101$2.14M0.00%+82+0.1%Added
Credit Suisse AG78,128$2.22M0.00%+190.0%Added
Oak Ridge Investments LLC86,716$2.47M0.22%−9,191−9.6%Reduced
Rafferty Asset Management, LLC86,779$2.47M0.02%+1,599+1.9%Added
Monashee Investment Management LLC87,000$2.48M0.30%+87,000New
Bank of Montreal84,694$2.52M0.00%+80,272+1,815.3%Added
Parametric Portfolio Associates LLC90,797$2.58M0.00%−2,928−3.1%Reduced
Mutual of America Capital Management LLC91,807$2.61M0.03%−3,948−4.1%Reduced
Royal Bank of Canada92,230$2.62M0.00%−67,835−42.4%Reduced
State of New Jersey Common Pension Fund D95,444$2.72M0.01%+29,946+45.7%Added
Tekla Capital Management LLC98,387$2.80M0.09%00.0%Unchanged
International Biotechnology Trust PLC100,100$2.85M0.76%+66,500+197.9%Added
Swedbank AB102,100$2.91M0.01%00.0%Unchanged
M&G Investment Management Ltd110,668$3.10M0.02%+110,668New
New York State Common Retirement Fund114,540$3.26M0.00%−7,110−5.8%Reduced
Rhumbline Advisers115,861$3.30M0.00%−4,469−3.7%Reduced
Neuberger Berman Group LLC121,157$3.44M0.00%+121,157New
UBS Asset Management Americas Inc123,000$3.50M0.00%+6,596+5.7%Added
Natixis125,323$3.57M0.02%−38,387−23.4%Reduced
State of Wisconsin Investment Board136,300$3.88M0.01%00.0%Unchanged
DekaBank Deutsche Girozentrale134,200$3.92M0.01%00.0%Unchanged
California State Teachers Retirement System142,312$4.05M0.01%−10,356−6.8%Reduced
GW&K Investment Management, LLC153,790$4.38M0.04%−3,360−2.1%Reduced
WCM Investment Management, LLC159,499$4.54M0.01%+6,350+4.1%Added
Ghisallo Capital Management LLC164,312$4.68M0.18%+164,312New
Deutsche Bank AG168,611$4.80M0.00%+5,446+3.3%Added
Citigroup Inc170,829$4.86M0.00%+45,436+36.2%Added
Silverarc Capital Management, LLC177,433$5.05M2.66%−13,377−7.0%Reduced
Lord, Abbett & Co. LLC195,722$5.57M0.01%−2,098,582−91.5%Reduced
Deerfield Management Company, L.P. (Series C)200,000$5.69M0.10%+200,000New
Putnam Investments LLC201,038$5.72M0.01%00.0%Unchanged
Altium Capital Management LP203,354$5.79M1.34%+93,100+84.4%Added
JPMorgan Chase & Co204,429$5.82M0.00%+30,216+17.3%Added
California Public Employees Retirement System226,747$6.45M0.00%−14,900−6.2%Reduced
Swiss National Bank227,100$6.46M0.00%−5,600−2.4%Reduced
Wells Fargo & Company232,764$6.63M0.00%+6,793+3.0%Added
Hennion & Walsh Asset Management, Inc.233,143$6.63M0.35%+15,448+7.1%Added
Two Sigma Advisers, LP239,400$6.81M0.02%+113,800+90.6%Added
TD Asset Management Inc280,228$6.89M0.01%+29,364+11.7%Added
Cormorant Asset Management, LP250,000$7.12M0.28%−50,000−16.7%Reduced
Endurant Capital Management LP260,314$7.41M2.04%+127,892+96.6%Added
Two Sigma Investments, LP273,135$7.77M0.02%+48,588+21.6%Added
Rice Hall James & Associates, LLC300,572$8.55M0.30%−43,746−12.7%Reduced
Scout Investments, Inc.336,425$9.57M0.14%+11,605+3.6%Added
C WorldWide Group Holding A/S343,110$9.77M0.10%00.0%Unchanged
Sycale Advisors (NY) LLC346,271$9.85M4.97%−24,418−6.6%Reduced
Voya Investment Management LLC358,372$10.2M0.02%+196,552+121.5%Added
Edgestream Partners, L.P.362,331$10.3M0.61%+362,331New
Bank of America Corp367,899$10.5M0.00%+151,238+69.8%Added
Woodline Partners LP396,551$11.3M0.21%+396,551New
Granahan Investment Management Inc412,453$11.7M0.22%+88,994+27.5%Added
D. E. Shaw & Co., Inc.423,146$12.0M0.01%−326,663−43.6%Reduced
Suvretta Capital Management, LLC441,065$12.6M0.19%+441,065New
Bank of New York Mellon Corp443,958$12.6M0.00%+26,215+6.3%Added
Hood River Capital Management LLC466,427$13.3M0.40%−6,800−1.4%Reduced
Candriam Luxembourg S.C.A.505,241$14.4M0.10%+222,340+78.6%Added
American Century Companies Inc542,245$15.4M0.01%+65,377+13.7%Added
Nuveen Asset Management, LLC564,358$16.1M0.00%+2,571+0.5%Added
AXA S.A.628,428$17.9M0.05%+111,683+21.6%Added
Invesco Ltd.629,615$17.9M0.00%−554,507−46.8%Reduced
Citadel Advisors LLC690,764$19.7M0.02%+440,661+176.2%Added
Novo Holdings A/S695,840$19.8M0.88%+239,209+52.4%Added
Principal Financial Group Inc721,792$20.5M0.01%+165,213+29.7%Added
Goldman Sachs Group Inc740,559$21.1M0.01%−239,167−24.4%Reduced
Loomis Sayles & Co L P775,250$22.1M0.03%−15,682−2.0%Reduced
Charles Schwab Investment Management Inc796,798$22.7M0.01%+64,281+8.8%Added
Morgan Stanley829,751$23.6M0.00%+267,684+47.6%Added
Sofinnova Investments, Inc.844,169$24.0M1.46%+225,219+36.4%Added
Sectoral Asset Management Inc913,700$26.0M2.10%+543,500+146.8%Added
Polar Capital Holdings Plc936,438$26.7M0.15%00.0%Unchanged
Westfield Capital Management Co LP967,079$27.5M0.16%−56,133−5.5%Reduced
Eagle Asset Management Inc1,033,558$29.4M0.13%+15,182+1.5%Added
Norges Bank1,105,091$31.5M0.01%+55,780+5.3%Added
Avidity Partners Management LP1,150,050$32.7M0.88%+1,150,050New
Northern Trust Corp1,151,123$32.8M0.01%+35,620+3.2%Added
Samlyn Capital, LLC1,210,714$34.5M0.53%+652,579+116.9%Added
Fairmount Funds Management LLC1,283,887$36.5M15.02%+322,090+33.5%Added
First Light Asset Management, LLC1,385,648$39.4M2.37%+434,695+45.7%Added
Geode Capital Management, LLC1,898,730$54.0M0.01%+175,316+10.2%Added
Alliancebernstein L.P.2,046,355$58.2M0.02%+226,113+12.4%Added
Baker Bros. Advisors LP2,156,001$61.4M0.27%00.0%Unchanged
Holocene Advisors, LP2,501,279$71.2M0.44%+723,666+40.7%Added
Pictet Asset Management Ltd2,554,235$72.7M0.08%+2,032,553+389.6%Added
Point72 Asset Management, L.P.2,875,596$81.8M0.41%−1,626−0.1%Reduced
Bellevue Group AG3,120,901$88.8M0.87%+643,735+26.0%Added
Macquarie Group Ltd3,189,635$90.8M0.07%+2,927,018+1,114.6%Added
Franklin Resources Inc3,448,782$98.2M0.04%+614,197+21.7%Added
State Street Corp3,574,308$101.7M0.01%+344,203+10.7%Added
Ameriprise Financial Inc4,064,771$115.7M0.04%+682,954+20.2%Added
FMR LLC4,335,406$123.4M0.01%−1,634,550−27.4%Reduced
William Blair Investment Management, LLC5,026,184$143.0M0.45%+1,261,948+33.5%Added
Palo Alto Investors LP6,019,106$171.3M9.44%+194,599+3.3%Added
Janus Henderson Group PLC7,952,001$226.3M0.10%+1,733,425+27.9%Added