INSM Institutional Ownership
Top institutional (13F) holders of INSM and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
43
Institutional value
$14.45B
Top holder
FMR LLC
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Top holders
| Holder | Filed | Value |
|---|---|---|
| FMR LLCinvestment advisor | Aug 13, 2026 | $1.72B |
| BlackRock, Inc.holding company | Aug 7, 2026 | $1.69B |
| Vanguard Portfolio Managementinvestment advisor | Aug 13, 2026 | $1.11B |
| JPMORGAN CHASE & COinvestment advisor | Aug 12, 2026 | $1.09B |
| Vanguard Capital Managementinvestment advisor | Aug 13, 2026 | $1.04B |
| Capital International Investorsinvestment advisor | Aug 12, 2026 | $878.34M |
| Ameriprise Financial, Inc.holding company | Aug 14, 2026 | $658.88M |
| STATE STREET CORPORATIONinvestment advisor | Sep 22, 2026 | $645.28M |
| D. E. Shaw & Co., Inc.investment advisor | Aug 14, 2026 | $633.12M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | Aug 12, 2026 | $448.76M |
| T. Rowe Price Associates, Inc.investment advisor | Aug 14, 2026 | $363.07M |
| Norges Bankother | Aug 12, 2026 | $360.12M |
| CITADEL ADVISORS LLCinvestment advisor | Sep 1, 2026 | $339.89M |
| MILLENNIUM MANAGEMENT LLCinvestment advisor | Aug 14, 2026 | $312.21M |
| Duquesne Family Office LLCinvestment advisor | Aug 14, 2026 | $295.84M |
| UBS Group AGinvestment advisor | Aug 13, 2026 | $275.77M |
| FRANKLIN RESOURCES INCinvestment advisor | Aug 13, 2026 | $242.37M |
| GOLDMAN SACHS GROUP INCinvestment advisor | Aug 14, 2026 | $241.13M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | Aug 14, 2026 | $230.73M |
| Capital World Investorsinvestment advisor | May 13, 2026 | $222.74M |
| BALYASNY ASSET MANAGEMENT L.P.investment advisor | Aug 14, 2026 | $143.2M |
| NORTHERN TRUST CORPinvestment advisor | Aug 13, 2026 | $140.24M |
| Bank of New York Mellon Corpholding company | Aug 6, 2026 | $139.97M |
| TWO SIGMA INVESTMENTS, LPinvestment advisor | Aug 14, 2026 | $133.3M |
| MORGAN STANLEYinvestment advisor | Aug 13, 2026 | $131.52M |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.