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Insmed Inc. 13F holders

668 funds reported a position in Insmed Inc. in their 13F for the quarter ended 30 June 2026, together 224.0 million shares worth $23.88 billion. Against the quarter before, 99 opened a position, 244 added, 229 trimmed and 122 sold out; together they sold a net 4.1 million shares. The largest holders: FMR LLC, BlackRock, Inc. and Vanguard Portfolio Management LLC.

Funds holding668-8 on Q1 2026
Shares they held224.0Mworth $23.88 billion
Net sold on the quarter4.1M sharesabout $436.9 million at the funds' values
Funds buying to selling343 to 351opened or added, to cut or sold
Opened 99Added 244Held 89Trimmed 229Sold out 122
Opened: 99 fundsAdded: 244 fundsHeld: 89 fundsTrimmed: 229 fundsSold out: 122 funds

What each fund did in INSM against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 414 funds, 191.4 million shares414Q3 2024Q4 2024: 438 funds, 192.6 million shares438Q4 2024Q1 2025: 441 funds, 200.3 million shares441Q1 2025Q2 2025: 516 funds, 211.5 million shares516Q2 2025Q3 2025: 567 funds, 234.9 million shares567Q3 2025Q4 2025: 679 funds, 218.5 million shares679Q4 2025Q1 2026: 676 funds, 222.0 million shares676Q1 2026Q2 2026: 668 funds, 224.0 million shares668Q2 2026

Funds reporting a position in INSM in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 134 reported a position in Insmed Inc.: 23 opened one, 48 added, 33 trimmed and 12 sold out, a net 1.0 million shares bought.

FundChange in sharesShares nowStatusFiling
Assenagon Asset Management S.A.+830,2481,266,788added13F
Y-Intercept (Hong Kong) Ltd-97,9823,926trimmed13F
J. Safra Sarasin Holding AG+79,602175,204added13F
Burney Co.+41,02641,026new13F
Wealth Enhancement Advisory Services, LLC+47,58858,888added13F
Axxion S.A.+21,20081,200added13F
HB Wealth Management, LLC+15,36215,362new13F
McRae Capital Management Inc.+12,75169,587added13F
Citizens Financial Group Inc.+11,50011,500new13F
AG2R La Mondiale Gestion D'actifs+7,9367,936new13F
Assetmark, Inc.-7,77127,100trimmed13F
Perpetual Ltd+5,7609,273added13F
Simon Quick Advisors, LLC-5,53844,509trimmed13F
NorthCrest Asset Manangement, LLC+5,7105,710new13F
Eulav Asset Management+5,000155,000added13F
MBL Wealth, LLC+4,9814,981new13F
Krilogy Financial LLC+5,7105,710new13F
KBC Group NV+4,30338,724added13F
Everhart Financial Group, Inc.+3,7653,765new13F
Sterling Capital Management LLC-3,6618,919trimmed13F
BI Asset Management Fondsmaeglerselskab A/S-3,60542,428trimmed13F
Abn Amro Investment Solutions+3,48915,517added13F
Mutual of America Capital Management LLC-3,41536,179trimmed13F
1900 Wealth Management LLC+2,8122,812new13F
B. Riley Wealth Advisors, Inc.+2,6606,568added13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 10 reported a position in Insmed Inc. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 16.1 million shares worth $1.72 billion, 0.1% of its reported book. New this quarter: Point72 Asset Management. Sold out: Renaissance Technologies. In the quarter, 8 funds added or opened a position and 2 trimmed or sold out; together they bought a net 6.1 million shares, about $651.7 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC16,143,583$1.72 billion0.1%+2,983,416added30 June 202613F
Geode Capital Management4,220,155$448.8 million0.0%-230,234trimmed30 June 202613F
Norges Bank3,377,641$360.1 million0.0%held30 June 202613F
Citadel Advisors2,556,973$272.6 million0.2%+374,402added30 June 202613F
Millennium Management2,048,005$218.4 million0.2%+890,219added30 June 202613F
Duquesne Family Office1,424,690$151.9 million3.5%+270,600added30 June 202613F
Two Sigma Investments1,242,222$132.4 million0.1%+1,005,205added30 June 202613F
Point72 Asset Management536,997$57.3 million0.1%+536,997new30 June 202613F
Bridgewater Associates455,392$48.6 million0.2%+159,813added30 June 202613F
Alyeska190,264$20.3 million0.1%+142,142added30 June 202613F
Renaissance Technologies0$00.0%-20,300exited30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
FMR LLC16,143,5837.21%$1.72 billion0.07%+2,983,41613F
BlackRock, Inc.15,807,9847.06%$1.69 billion0.03%-870,16213F
Vanguard Portfolio Management LLC10,407,9624.65%$1.11 billion0.05%+36,16013F
JPMorgan Chase & Co.10,428,1704.66%$1.09 billion0.06%-13,722,32913F
Vanguard Capital Management LLC9,790,8654.37%$1.04 billion0.02%+148,73413F
Baker Bros. Advisors LP8,796,1113.93%$937.8 million4.72%+1,375,00013F
Capital International Investors8,238,1243.68%$878.3 million0.18%+2,642,93013F
Darwin Global Management, Ltd.6,431,1632.87%$673.6 million17.91%-10,374,02113F
Ameriprise Financial Inc.6,179,5712.76%$658.9 million0.13%+3,121,85313F
Orbis Allan Gray Ltd6,076,4872.71%$647.9 million2.23%+4,203,66313F
State Street Corp.6,052,1742.70%$645.3 million0.02%+500,47513F
D. E. Shaw & Co., Inc.5,877,9592.62%$626.7 million0.41%+252,13413F
Artisan Partners Limited Partnership5,441,7182.43%$580.2 million0.95%-1,085,58313F
RTW Investments, LP4,842,8802.16%$516.3 million4.41%no change13F
Geode Capital Management, LLC4,220,1551.88%$448.8 million0.02%-230,23413F
Price T Rowe Associates Inc.3,405,2901.52%$363.1 million0.04%+312,48313F
Norges Bank3,377,6411.51%$360.1 million0.04%13F
Jupiter Topco LLC2,605,1811.16%$277.8 million0.11%first 13F13F
UBS Group AG2,584,4461.15%$275.6 million0.04%+846,96513F
Citadel Advisors LLC2,556,9731.14%$272.6 million0.16%+374,40213F
Franklin Resources Inc.2,273,2221.01%$242.4 million0.05%-344,02913F
Maverick Capital Ltd2,150,7620.96%$229.3 million2.07%new13F
Millennium Management LLC2,048,0050.91%$218.4 million0.15%+890,21913F
Qube Research & Technologies Ltd1,682,3340.75%$179.4 million0.20%+1,533,81913F
Westfield Capital Management Co. LP1,629,5610.73%$173.7 million0.57%+161,10213F
T. Rowe Price Investment Management, Inc.1,622,6750.72%$173.0 million0.11%new13F
Integral Health Asset Management, LLC1,600,0000.71%$170.6 million7.00%+100,00013F
Duquesne Family Office LLC1,424,6900.64%$151.9 million3.49%+270,60013F
Goldman Sachs Group Inc.1,409,8850.63%$150.3 million0.02%+467,23913F
Vanguard Fiduciary Trust Co.1,401,5520.63%$149.4 million0.03%+47,03613F
Bellevue Group AG1,393,4180.62%$148.6 million3.13%+1,383,38413F
UBS AM, a distinct business unit of UBS Asset Management Americas LLC1,335,0710.60%$142.3 million0.03%+120,04613F
Balyasny Asset Management L.P.1,326,4300.59%$141.4 million0.27%+1,104,72313F
Paradigm Biocapital Advisors LP1,325,9770.59%$141.4 million2.65%+71,48913F
Northern Trust Corp.1,315,3250.59%$140.2 million0.02%+21,32513F
Bank of New York Mellon Corp1,312,7560.59%$140.0 million0.02%+50,00713F
Two Sigma Investments, LP1,242,2220.55%$132.4 million0.10%+1,005,20513F
Morgan Stanley1,233,4980.55%$131.5 million0.01%-98,04413F
Pictet Asset Management Holding SA1,220,3530.54%$129.8 million0.12%+118,10513F
Charles Schwab Investment Management Inc.1,213,9630.54%$129.4 million0.02%+144,57313F
Hood River Capital Management LLC1,056,8710.47%$112.7 million0.82%+368,31713F
Bank of America Corp.1,023,1140.46%$109.1 million0.01%-479,16713F
Sei Investments Co.1,015,8700.45%$108.3 million0.10%-379,92413F
Nwi Management LP1,014,0000.45%$108.1 million6.91%-1,014,00013F
Castle Hook Partners LP993,3100.44%$105.9 million1.14%-276,44413F
Jennison Associates LLC905,0940.40%$96.5 million0.06%+300,40013F
Polar Capital Holdings Plc890,8720.40%$95.0 million0.27%+522,76513F
FIL Ltd856,2140.38%$91.3 million0.07%+27,26713F
Principal Financial Group Inc.856,1260.38%$91.3 million0.04%-60,33813F
Adage Capital Partners GP, L.l.c.850,0000.38%$90.6 million0.13%-50,00013F
The 50 largest of the 668 funds that reported a position in INSM in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on INSM

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Duquesne Family OfficeCalls1,350,000$143.9 million30 June 202613F
Millennium ManagementCalls864,000$92.1 million30 June 202613F
Citadel AdvisorsCalls357,200$38.1 million30 June 202613F
Citadel AdvisorsPuts273,700$29.2 million30 June 202613F
Millennium ManagementPuts16,200$1.7 million30 June 202613F
Two Sigma InvestmentsCalls5,500$586,41030 June 202613F
Two Sigma InvestmentsPuts2,500$266,55030 June 202613F
Point72 Asset ManagementCalls1,300$138,60630 June 202613F
Point72 Asset ManagementPuts800$85,29630 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
14 August 202613G/ADarwin Global Management, Ltd. and 5 others6.4 million3.0%30 June 2026passive, under 20% (13d-1(c))EDGAR
6 August 202613G/AFMR LLC and 3 others16.1 million7.4%30 June 2026passive, institutional (13d-1(b))EDGAR
22 July 202613G/AJpmorgan Chase & Co. and 1 other10.4 million4.7%30 June 2026passive, institutional (13d-1(b))EDGAR
15 May 202613G/ADarwin Global Management, Ltd. and 5 others16.8 million7.8%31 March 2026passive, under 20% (13d-1(c))EDGAR
6 May 202613GFMR LLC and 3 others13.1 million6.1%31 March 2026passive, institutional (13d-1(b))EDGAR
30 April 202613GVanguard Capital Management and 1 other11.5 million5.3%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
21 January 202613G/ABlackRock, Inc. and 1 other14.1 million6.6%31 December 2025passive, institutional (13d-1(b))EDGAR
14 November 202513G/ADarwin Global Management, Ltd. and 5 others20.5 million9.7%30 September 2025passive, under 20% (13d-1(c))EDGAR
14 November 202513G/AT. Rowe Price Associates, Inc. and 1 other6.9 million3.3%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
25 September 202630$121.55SEC
21 September 2026787$120.00SEC
18 September 202688$123.98SEC
17 September 20263,154$122.58SEC
3 September 2026152$126.63SEC
24 August 202618,985$125.77SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 18,985 on 24 August 2026. A fail is an operational fact about settlement, not a position.