INSM institutional holders
INSMED INC COM PAR $.01 · 13F, 2026Q2
| Managers holding | 665 |
|---|
| Shares held | 223,876,270 |
|---|
| Reported value | $23.9bn |
|---|
| Quarter flows | 119 new, 245 added, 232 trimmed, 128 exited |
|---|
Top 25 holders
| Manager | Shares | Value | % of manager's 13F |
|---|
| FMR LLC | 16,143,583 | $1.7bn | 0.1% |
| BlackRock, Inc. | 15,807,984 | $1.7bn | 0.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 10,407,962 | $1.1bn | 0.1% |
| JPMORGAN CHASE & CO | 10,428,170 | $1.1bn | 0.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 9,790,865 | $1.0bn | 0.0% |
| BAKER BROS. ADVISORS LP | 8,796,111 | $937.8m | 4.7% |
| Capital International Investors | 8,238,124 | $878.3m | 0.2% |
| Darwin Global Management, Ltd. | 6,431,163 | $673.6m | 17.9% |
| AMERIPRISE FINANCIAL INC | 6,179,571 | $658.9m | 0.1% |
| Orbis Allan Gray Ltd | 6,076,487 | $647.9m | 2.2% |
| STATE STREET CORP | 6,052,174 | $645.3m | 0.0% |
| D. E. Shaw & Co., Inc. | 5,877,959 | $626.7m | 0.3% |
| Artisan Partners Limited Partnership | 5,441,718 | $580.2m | 0.9% |
| RTW INVESTMENTS, LP | 4,842,880 | $516.3m | 4.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 4,220,155 | $448.8m | 0.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 3,405,290 | $363.1m | 0.0% |
| NORGES BANK | 3,377,641 | $360.1m | 0.0% |
| Jupiter Topco LLC | 2,605,181 | $277.8m | 0.1% |
| UBS Group AG | 2,584,446 | $275.6m | 0.0% |
| CITADEL ADVISORS LLC | 2,556,973 | $272.6m | 0.0% |
| FRANKLIN RESOURCES INC | 2,273,222 | $242.4m | 0.1% |
| MAVERICK CAPITAL LTD | 2,150,762 | $229.3m | 2.0% |
| MILLENNIUM MANAGEMENT LLC | 2,048,005 | $218.4m | 0.1% |
| Qube Research & Technologies Ltd | 1,682,334 | $179.4m | 0.2% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1,629,561 | $173.7m | 0.6% |
Every holder, line by line, and the full history since 2013: yf.Client().holders("INSM"). INSM price history · All 13F data
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