Insmed
INSM
663 hedge funds and large institutions have $23.8B invested in Insmed in 2026 Q2 according to their latest regulatory filings, with 119 funds opening new positions, 244 increasing their positions, 230 reducing their positions, and 121 closing their positions.
49% more call options, than puts
Call options by funds: $614M | Put options by funds: $411M
6% more repeat investments, than reductions
Existing positions increased: 244 | Existing positions reduced: 230
0.53% more ownership
Funds ownership: 102.5% → 103.03% (+0.53%)
2% less first-time investments, than exits
New positions opened: 119 | Existing positions closed: 121
1% less funds holding
Funds holding: 673 → 663 (-10)
33% less capital invested
Capital invested by funds: $35.7B → $23.8B (-$11.9B)
38% less funds holding in top 10
Funds holding in top 10: 26 → 16 (-10)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OAG
Orbis Allan Gray
Hamilton,
Bermuda
|
+$509M |
| 2 |
Ameriprise
Minneapolis,
Minnesota
|
+$378M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
+$361M |
| 4 |
Capital International Investors
Los Angeles,
California
|
+$320M |
| 5 |
MC
Maverick Capital
Dallas,
Texas
|
+$260M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
-$1.66B |
| 2 |
DGM
Darwin Global Management
St. Helier,
Jersey
|
-$1.26B |
| 3 |
Invesco
Atlanta,
Georgia
|
-$744M |
| 4 |
Capital World Investors
Los Angeles,
California
|
-$223M |
| 5 |
Artisan Partners
Milwaukee,
Wisconsin
|
-$131M |
INSM Hedge Fund Activity: Q2 2026 in Review
663 of the 8,279 institutional investors tracked by Wall St. Rank reported a position in Insmed (INSM) for Q2 2026, worth a combined $23.8B — down 33% from $35.7B a quarter earlier.
Sellers outnumbered buyers: 121 funds closed out of INSM and 119 opened new positions — a net loss of 2 holders — while 230 trimmed existing stakes and 244 added.
The largest buyer was Orbis Allan Gray, adding an estimated $509M. The largest seller was JP Morgan Chase, cutting an estimated $1.66B.
- 663 institutional investors held Insmed (INSM) as of Q2 2026, down from 673 in Q1 2026.
- Funds reported $23.8B of Insmed stock for Q2 2026, down 33% quarter-over-quarter.
- 119 funds opened new Insmed positions in Q2 2026 and 121 closed out, a net change of -2 holders.
- The largest Insmed buyer in Q2 2026 was Orbis Allan Gray, an estimated $509M added.
- The largest Insmed seller in Q2 2026 was JP Morgan Chase, an estimated $1.66B sold.
Based on aggregated 13F filings for Q2 2026.