Inspire Medical Systems
INSP
275 hedge funds and large institutions have $1.65B invested in Inspire Medical Systems in 2026 Q2 according to their latest regulatory filings, with 69 funds opening new positions, 97 increasing their positions, 76 reducing their positions, and 90 closing their positions.
28% more repeat investments, than reductions
Existing positions increased: 97 | Existing positions reduced: 76
7.27% more ownership
Funds ownership: 121.12% → 128.39% (+7.3%)
8% less capital invested
Capital invested by funds: $1.8B → $1.65B (-$151M)
9% less funds holding
Funds holding: 301 → 275 (-26)
23% less first-time investments, than exits
New positions opened: 69 | Existing positions closed: 90
32% less call options, than puts
Call options by funds: $4.96M | Put options by funds: $7.24M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$73.4M |
| 2 |
Nomura Holdings
Tokyo,
Japan
|
+$64.9M |
| 3 |
SCM
Soleus Capital Management
Greenwich,
Connecticut
|
+$64.3M |
| 4 |
BlackRock
New York
|
+$56.3M |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$47.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DM
Deerfield Management
New York
|
-$66.7M |
| 2 |
William Blair Investment Management
Chicago,
Illinois
|
-$58.7M |
| 3 |
Morgan Stanley
New York
|
-$31.3M |
| 4 |
VPC
Vestal Point Capital
New York
|
-$27.8M |
| 5 |
RCM
RA Capital Management
Boston,
Massachusetts
|
-$16.8M |
INSP Hedge Fund Activity: Q2 2026 in Review
275 of the 8,303 institutional investors tracked by Wall St. Rank reported a position in Inspire Medical Systems (INSP) for Q2 2026, worth a combined $1.65B — down 8.4% from $1.8B a quarter earlier.
Sellers outnumbered buyers: 90 funds closed out of INSP and 69 opened new positions — a net loss of 21 holders — while 76 trimmed existing stakes and 97 added.
The largest buyer was AQR Capital Management, adding an estimated $73.4M. The largest seller was Deerfield Management, cutting an estimated $66.7M.
- 275 institutional investors held Inspire Medical Systems (INSP) as of Q2 2026, down from 301 in Q1 2026.
- Funds reported $1.65B of Inspire Medical Systems stock for Q2 2026, down 8.4% quarter-over-quarter.
- 69 funds opened new Inspire Medical Systems positions in Q2 2026 and 90 closed out, a net change of -21 holders.
- The largest Inspire Medical Systems buyer in Q2 2026 was AQR Capital Management, an estimated $73.4M added.
- The largest Inspire Medical Systems seller in Q2 2026 was Deerfield Management, an estimated $66.7M sold.
Based on aggregated 13F filings for Q2 2026.