INSMED INC INSM
$111.60
+4.3% 52w: $91.88 – $211.41
Latest 13F among current holders filed 10 days ago (Jun 24, 2026)
Price — last 12 months
research preview data91.88151.65211.41
Jun 20, 2025 Jul 2, 2026
Institutional holders
668
-8 QoQ
13F value
$35.12B
-5.6% QoQ
Smart-money holders
52
signal tier ≥ 2
New smart buyers
6
Q1 2026
Options barometer
1.5×
$352.2M calls / $231.9M puts
Institutional value by quarter
Number of holders
Who owns INSM?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| JPMORGAN CHASE & CO | Bank broker | 24.2M | $3.70B | 0.3% | +4.1% |
| BlackRock, Inc. | Index provider | 16.7M | $2.73B | 0.0% | +10.7% |
| Darwin Global Management, Ltd. ★2 | Fundamental diversified | 16.8M | $2.58B | 68.3% | -19.7% |
| FMR LLC | Long only active | 13.2M | $2.15B | 0.1% | +32.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 10.4M | $1.70B | 0.1% | — |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 9.6M | $1.58B | 0.0% | — |
| BAKER BROS. ADVISORS LP ★2 | Fundamental diversified | 7.4M | $1.21B | 7.0% | +12.6% |
| Artisan Partners Limited Partnership | Other | 6.5M | $1.07B | 1.7% | +34.8% |
| D. E. Shaw & Co., Inc. | Quant stat arb | 5.6M | $919.9M | 0.8% | +29.3% |
| Capital International Investors | Long only active | 5.6M | $914.9M | 0.2% | +8.6% |
| STATE STREET CORP | Index provider | 5.6M | $907.8M | 0.0% | +6.7% |
| RTW INVESTMENTS, LP ★2 | Fundamental diversified | 4.8M | $791.9M | 7.9% | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 4.5M | $733.3M | 0.0% | +3.5% |
| PRICE T ROWE ASSOCIATES INC /MD/ | Diversified mechanical | 3.1M | $505.7M | 0.1% | -23.4% |
| AMERIPRISE FINANCIAL INC | Bank broker | 3.1M | $500.0M | 0.1% | +55.3% |
| FRANKLIN RESOURCES INC | Long only active | 2.6M | $428.0M | 0.1% | -5.0% |
| CITADEL ADVISORS LLC | Multistrat pod | 2.2M | $356.9M | 0.3% | +88.6% |
| NWI MANAGEMENT LP | Other | 2.0M | $331.6M | 10.1% | +2.6% |
| Invesco Ltd. | Index provider | 2.0M | $325.2M | 0.0% | -27.1% |
| Orbis Allan Gray Ltd ★2 | Fundamental diversified | 1.9M | $306.2M | 1.3% | -55.2% |
| UBS Group AG | Bank broker | 1.7M | $284.1M | 0.1% | -7.0% |
| BANK OF AMERICA CORP /DE/ | Bank broker | 1.5M | $245.7M | 0.0% | -12.9% |
| Integral Health Asset Management, LLC ★2 | Fundamental diversified | 1.5M | $245.3M | 13.0% | +20.0% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Other | 1.5M | $240.1M | 1.0% | +239.5% |
| SEI INVESTMENTS CO | Diversified mechanical | 1.4M | $228.2M | 0.2% | +56.8% |
| Capital World Investors | Long only active | 1.4M | $222.7M | 0.0% | New |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 1.4M | $221.5M | 0.1% | — |
| MORGAN STANLEY | Bank broker | 1.3M | $217.7M | 0.0% | -18.4% |
| NORTHERN TRUST CORP | Index provider | 1.3M | $211.6M | 0.0% | +4.5% |
| Castle Hook Partners LP ★2 | Fundamental concentrated | 1.3M | $207.6M | 4.2% | +1.3% |
| Bank of New York Mellon Corp | Diversified mechanical | 1.3M | $206.5M | 0.0% | -9.2% |
| Paradigm Biocapital Advisors LP ★2 | Fundamental concentrated | 1.3M | $205.1M | 4.2% | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Bank broker | 1.2M | $198.7M | 0.0% | +28.8% |
| MILLENNIUM MANAGEMENT LLC | Multistrat pod | 1.2M | $189.3M | 0.1% | -11.7% |
| Duquesne Family Office LLC ★3 | Value conviction | 1.2M | $188.7M | 6.4% | -22.1% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Diversified mechanical | 1.1M | $187.0M | 0.3% | -3.3% |
| Pictet Asset Management Holding SA | Diversified mechanical | 1.1M | $178.7M | 0.2% | +14.9% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 1.1M | $174.9M | 0.0% | +4.1% |
| Fiera Capital Corp | Other | 1.0M | $167.1M | 0.6% | +2.9% |
| GOLDMAN SACHS GROUP INC | Bank broker | 942.6K | $154.1M | 0.0% | -24.3% |
| AMERICAN CENTURY COMPANIES INC | Diversified mechanical | 925.8K | $151.4M | 0.1% | +400.2% |
| PRINCIPAL FINANCIAL GROUP INC | Diversified mechanical | 916.5K | $149.9M | 0.1% | +18.8% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Other | 902.7K | $147.6M | 0.5% | -26.1% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Other | 900.0K | $147.2M | 0.2% | +200.0% |
| FIL Ltd | Other | 828.9K | $135.5M | 0.1% | -1.1% |
| Amundi | Diversified mechanical | 805.0K | $131.6M | 0.0% | -12.2% |
| Legal & General Group Plc | Diversified mechanical | 787.1K | $128.7M | 0.0% | +45.7% |
| RAYMOND JAMES FINANCIAL INC | Bank broker | 775.1K | $121.4M | 0.0% | -0.5% |
| ALLIANCEBERNSTEIN L.P. | Long only active | 688.7K | $119.9M | 0.0% | +7.2% |
| Hood River Capital Management LLC | Other | 688.6K | $112.6M | 1.1% | +8.0% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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