INSMED INC (INSM): Institutional Ownership
Hedge funds and institutional managers reporting a position in INSM · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
23
13F filers
Aggregate Value
$801.4M
Across holders
Last Price
$103.38
2026-06-26
Sector
Health Care
GICS
Holder activity9 new3 added10 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Duquesne Family Office LLC CIK 0001536411 | Family Office | 1.15M | $188.7M | 23.5% | 5.6% | Reduced | $-53.6M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 900K | $147.2M | 18.4% | 0.2% | Added | +$98.1M | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 801K | $139.4M | 17.4% | 0.3% | New | — | Q4 2025 |
| MAVERICK CAPITAL LTD CIK 0000934639 | Hedge Fund | 657K | $94.5M | 11.8% | 1.3% | New | — | Q3 2025 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 296K | $48.3M | 6.0% | 0.2% | New | — | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 237K | $38.8M | 4.8% | 0.0% | Reduced | $-118.6M | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 222K | $36.2M | 4.5% | 0.0% | Reduced | $-26.0M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 149K | $24.3M | 3.0% | 0.0% | New | — | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 148K | $24.2M | 3.0% | 0.2% | Added | +$11.1M | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 72K | $11.7M | 1.5% | 0.0% | Added | +$9.5M | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 56K | $9.2M | 1.1% | 0.1% | New | — | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 51K | $8.3M | 1.0% | 0.0% | Reduced | $-27.5M | Q1 2026 |
| Hudson Bay Capital Management LP CIK 0001393825 | Hedge Fund | 82K | $8.2M | 1.0% | 0.0% | New | — | Q2 2025 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 45K | $7.4M | 0.9% | 0.0% | Reduced | $-39.3M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 25K | $4.0M | 0.5% | 0.0% | Reduced | $-3.0M | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 20K | $3.3M | 0.4% | 0.0% | Reduced | $-916K | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 16K | $2.8M | 0.3% | 0.0% | New | — | Q4 2025 |
| Man Group plc CIK 0001637460 | Hedge Fund | 13K | $2.1M | 0.3% | 0.0% | Reduced | $-14.0M | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 10K | $1.6M | 0.2% | 0.0% | Reduced | $-1.9M | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 4K | $576K | 0.1% | 0.0% | New | — | Q1 2026 |
Reduced
Family Office
$188.7M· 23.5% of total· 5.6% port· 1.15M sh· $-53.6M QoQ· Q1 2026
Added
Hedge Fund
$147.2M· 18.4% of total· 0.2% port· 900K sh· +$98.1M QoQ· Q1 2026
New
Hedge Fund
$139.4M· 17.4% of total· 0.3% port· 801K sh· — QoQ· Q4 2025
New
Hedge Fund
$94.5M· 11.8% of total· 1.3% port· 657K sh· — QoQ· Q3 2025
New
Hedge Fund
$48.3M· 6.0% of total· 0.2% port· 296K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$38.8M· 4.8% of total· 0.0% port· 237K sh· $-118.6M QoQ· Q1 2026
Reduced
Hedge Fund
$36.2M· 4.5% of total· 0.0% port· 222K sh· $-26.0M QoQ· Q1 2026
New
Hedge Fund
$24.3M· 3.0% of total· 0.0% port· 149K sh· — QoQ· Q1 2026
Added
Hedge Fund
$24.2M· 3.0% of total· 0.2% port· 148K sh· +$11.1M QoQ· Q1 2026
Added
Hedge Fund
$11.7M· 1.5% of total· 0.0% port· 72K sh· +$9.5M QoQ· Q1 2026
New
Hedge Fund
$9.2M· 1.1% of total· 0.1% port· 56K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$8.3M· 1.0% of total· 0.0% port· 51K sh· $-27.5M QoQ· Q1 2026
New
Hedge Fund
$8.2M· 1.0% of total· 0.0% port· 82K sh· — QoQ· Q2 2025
Reduced
Hedge Fund
$7.4M· 0.9% of total· 0.0% port· 45K sh· $-39.3M QoQ· Q1 2026
Reduced
Hedge Fund
$4.0M· 0.5% of total· 0.0% port· 25K sh· $-3.0M QoQ· Q1 2026
Reduced
Hedge Fund
$3.3M· 0.4% of total· 0.0% port· 20K sh· $-916K QoQ· Q1 2026
New
Hedge Fund
$2.8M· 0.3% of total· 0.0% port· 16K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$2.1M· 0.3% of total· 0.0% port· 13K sh· $-14.0M QoQ· Q1 2026
Reduced
Hedge Fund
$1.6M· 0.2% of total· 0.0% port· 10K sh· $-1.9M QoQ· Q1 2026
New
Hedge Fund
$576K· 0.1% of total· 0.0% port· 4K sh· — QoQ· Q1 2026
New
Hedge Fund
$441K· 0.1% of total· 0.0% port· 6K sh· — QoQ· Q1 2025
Unchanged
Hedge Fund
$35K· 0.0% of total· 0.0% port· 214 sh· +$0 QoQ· Q1 2026
Reduced
Hedge Fund
$644· 0.0% of total· 0.0% port· 4 sh· $-75.3M QoQ· Q1 2026
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