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, Q1 2026
Institutional positions in INSMED Inc as of Mar 31, 2026. 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
- 675
- +8 vs. Q4 2025
- Shares held
- 220.9M
- +27.6M (+14.3%) vs. Q4 2025
- Total value
- $35.7B
- +$2.06B (+6.1%) vs. Q4 2025
- New holders
- 101
- 288 more added
- Sold out
- 93
- 216 more reduced
11 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 667 | $23.8B |
| Q1 2026 | 675 | $35.7B |
| Q4 2025 | 678 | $37.8B |
| Q3 2025 | 566 | $30.3B |
| Q2 2025 | 516 | $21.2B |
| Q1 2025 | 442 | $15.3B |
| Q4 2024 | 439 | $13.3B |
| Q3 2024 | 414 | $13.7B |
| Q2 2024 | 378 | $11.7B |
| Q1 2024 | 288 | $4.07B |
| Q4 2023 | 271 | $4.64B |
| Q3 2023 | 252 | $3.72B |
| Q2 2023 | 223 | $3.09B |
| Q1 2023 | 230 | $2.48B |
| Q4 2022 | 225 | $2.87B |
| Q3 2022 | 238 | $2.74B |
| Q2 2022 | 214 | $2.55B |
| Q1 2022 | 224 | $2.97B |
| Q4 2021 | 214 | $3.36B |
| Q3 2021 | 193 | $3.40B |
| Q2 2021 | 203 | $3.46B |
| Q1 2021 | 199 | $3.63B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ishara Investments LP | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −9,823−100.0% | Sold out |
| Dai-Ichi Life Insurance Company, Ltd | 0 | $0 | 0.00% | −8,633−100.0% | Sold out |
| Highland Capital Management, LLC | 0 | $0 | 0.00% | −8,558−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −7,942−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −7,364−100.0% | Sold out |
| Himension Fund | 0 | $0 | 0.00% | −7,164−100.0% | Sold out |
| Park Capital Management, LLC | 0 | $0 | 0.00% | −5,989−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −5,563−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −4,883−100.0% | Sold out |
| Rice Hall James & Associates, LLC | 0 | $0 | 0.00% | −4,536−100.0% | Sold out |
| University of Texas/Texas Am Investment Managment Co | 0 | $0 | 0.00% | −4,170−100.0% | Sold out |
| Independent Financial Group, LLC | 0 | $0 | 0.00% | −4,113−100.0% | Sold out |
| MidFirst Bank | 0 | $0 | 0.00% | −4,012−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −3,931−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −3,692−100.0% | Sold out |
| PSP Research LLC | 0 | $0 | 0.00% | −3,049−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Harvest Investment Services, LLC | 0 | $0 | 0.00% | −2,990−100.0% | Sold out |
| Sherman Porfolios, LLC | 0 | $0 | 0.00% | −2,963−100.0% | Sold out |
| National Asset Management, Inc. | 0 | $0 | 0.00% | −2,842−100.0% | Sold out |
| Private Advisory Group LLC | 0 | $0 | 0.00% | −2,750−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −2,733−100.0% | Sold out |
| Steel Peak Wealth Management LLC | 0 | $0 | 0.00% | −2,732−100.0% | Sold out |
| HighPoint Advisor Group LLC | 0 | $0 | 0.00% | −2,626−100.0% | Sold out |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −2,540−100.0% | Sold out |
| Northwest & Ethical Investments L.P. | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Wiregrass Investment Management LLC | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Hilltop Holdings Inc. | 0 | $0 | 0.00% | −2,215−100.0% | Sold out |
| Bridges Investment Management Inc | 0 | $0 | 0.00% | −2,081−100.0% | Sold out |
| Machina Capital S.A.S. | 0 | $0 | 0.00% | −2,063−100.0% | Sold out |
| Grimes & Company, Inc. | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −1,900−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −1,854−100.0% | Sold out |
| Ritholtz Wealth Management | 0 | $0 | 0.00% | −1,848−100.0% | Sold out |
| Financiere des Professionnels - Fonds d,investissement inc. | 0 | $0 | 0.00% | −1,614−100.0% | Sold out |
| Wedmont Private Capital | 0 | $0 | 0.00% | −1,234−100.0% | Sold out |
| Banco BTG Pactual S.A. | 0 | $0 | 0.00% | −1,240−100.0% | Sold out |
| Aaron Wealth Advisors | 0 | $0 | 0.00% | −1,229−100.0% | Sold out |
| Earnest Partners LLC | 0 | $0 | 0.00% | −1,222−100.0% | Sold out |
| Elite Wealth Management, Inc. | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Strategic Family Wealth Counselors, L.L.C. | 0 | $0 | 0.00% | −1,266−100.0% | Sold out |
| Keyvantage Wealth, LLC | 0 | $0 | 0.00% | −1,163−100.0% | Sold out |
| ClearAlpha Technologies LP | 0 | $0 | 0.00% | −1,155−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −1,067−100.0% | Sold out |
| Chung Wu Investment Group, LLC | 0 | $0 | 0.00% | −1,020−100.0% | Sold out |
| Greenline Wealth Management LLC | 0 | $0 | 0.00% | −847−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −742−100.0% | Sold out |
| Monetary Management Group Inc | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −482−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −325−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −315−100.0% | Sold out |
| Reflection Asset Management | 0 | $0 | 0.00% | −171−100.0% | Sold out |
| McGuire Capital Advisors Inc | 0 | $0 | 0.00% | −128−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −87−100.0% | Sold out |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −61−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −62−100.0% | Sold out |
| Motco | 0 | $0 | 0.00% | −54−100.0% | Sold out |
| Marquette Asset Management, LLC | 0 | $0 | 0.00% | −28−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| United Financial Planning Group LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Wilkerson Advisory Group LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Optima Capital LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Quaker Wealth Management, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| TFC Financial Management | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Concord Wealth Partners | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| Forsta Ap-Fonden | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Yeomans Consulting Group, Inc. | – | – | – | – | Not filed |
| ORG Partners LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Trust Co of Vermont | – | – | – | – | Not filed |
| Motiv8 Investments LLC | – | – | – | – | Not filed |