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Inspire Medical Systems

356 hedge funds and large institutions have $4.39B invested in Inspire Medical Systems in 2025 Q2 according to their latest regulatory filings, with 48 funds opening new positions, 131 increasing their positions, 140 reducing their positions, and 52 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.6% less ownership

Funds ownership: 115.19%114.59% (-0.6%)

6% less repeat investments, than reductions

Existing positions increased: 131 | Existing positions reduced: 140

8% less first-time investments, than exits

New positions opened: 48 | Existing positions closed: 52

8% less call options, than puts

Call options by funds: $15.4M | Put options by funds: $16.7M

2% less funds holding

Funds holding: 363356 (-7)

20% less capital invested

Capital invested by funds: $5.49B → $4.39B (-$1.1B)

67% less funds holding in top 10

Funds holding in top 10: 62 (-4)

Holders
356
Holders Change
-7
Holders Change %
-1.93%
% of All Funds
4.69%
Holding in Top 10
2
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-66.67%
% of All Funds
0.03%
New
48
Increased
131
Reduced
140
Closed
52
Calls
$15.4M
Puts
$16.7M
Net Calls
-$1.3M
Net Calls Change
-$3.13M
Name Holding Trade Value Shares
Change
Change in
Stake
Baird Financial Group
101
Baird Financial Group
Wisconsin
$3.73M -$366K -2,525 -8%
Schroder Investment Management Group
102
Schroder Investment Management Group
United Kingdom
$3.72M -$271K -1,870 -6%
California State Teachers Retirement System (CalSTRS)
103
California State Teachers Retirement System (CalSTRS)
California
$3.58M
MCM
104
Monimus Capital Management
New Jersey
$3.42M +$911K +6,282 +31%
ORI
105
Oak Ridge Investments
Illinois
$3.42M +$38.1K +263 +1%
BMSSC
106
B. Metzler seel. Sohn & Co
Germany
$3.34M +$1.03M +7,075 +38%
LI
107
LMCG Investments
Massachusetts
$3.33M -$316K -2,181 -8%
Canada Life
108
Canada Life
Manitoba, Canada
$3.18M -$157K -1,086 -4%
AG
109
Algert Global
California
$2.88M -$5.46M -37,643 -63%
BHCM
110
Brevan Howard Capital Management
Jersey
$2.8M +$2.56M +17,688 +458%
New York State Teachers Retirement System (NYSTRS)
111
New York State Teachers Retirement System (NYSTRS)
New York
$2.79M +$14.5K +100 +0.5%
TIM
112
Thornburg Investment Management
New Mexico
$2.72M -$287K -1,976 -9%
CC
113
Centiva Capital
New York
$2.54M +$571K +3,938 +25%
Two Sigma Investments
114
Two Sigma Investments
New York
$2.51M -$3.89M -26,819 -58%
Susquehanna International Group
115
Susquehanna International Group
Pennsylvania
$2.34M +$1.38M +9,522 +112%
SOADOR
116
State of Alaska Department of Revenue
Alaska
$2.28M +$162K +1,116 +7%
PHK
117
Point72 Hong Kong
Hong Kong
$2.26M +$2.53M +17,450 New
Cetera Investment Advisers
118
Cetera Investment Advisers
Illinois
$2.21M -$282K -1,948 -10%
State of Tennessee, Department of Treasury
119
State of Tennessee, Department of Treasury
Tennessee
$2.13M +$242K +1,666 +11%
Verition Fund Management
120
Verition Fund Management
Connecticut
$2.13M +$1.44M +9,920 +152%
DFCM
121
Dark Forest Capital Management
Puerto Rico
$2.13M +$945K +6,516 +66%
Marshall Wace
122
Marshall Wace
United Kingdom
$2.06M +$83.7K +577 +4%
YIH
123
Y-Intercept (HK)
Hong Kong
$1.97M +$2.2M +15,166 New
OAM
124
Oppenheimer Asset Management
New York
$1.97M -$6.53K -45 -0.3%
HSA
125
Hussman Strategic Advisors
Maryland
$1.91M +$2.13M +14,700 New

INSP Hedge Fund Activity: Q2 2025 in Review

356 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Inspire Medical Systems (INSP) for Q2 2025, worth a combined $4.39B — down 20% from $5.49B a quarter earlier.

Sellers outnumbered buyers: 52 funds closed out of INSP and 48 opened new positions — a net loss of 4 holders — while 140 trimmed existing stakes and 131 added.

The largest buyer was Dragoneer Investment Group, adding an estimated $153M. The largest seller was Invesco, cutting an estimated $76.2M.

  • 356 institutional investors held Inspire Medical Systems (INSP) as of Q2 2025, down from 363 in Q1 2025.
  • Funds reported $4.39B of Inspire Medical Systems stock for Q2 2025, down 20% quarter-over-quarter.
  • 48 funds opened new Inspire Medical Systems positions in Q2 2025 and 52 closed out, a net change of -4 holders.
  • The largest Inspire Medical Systems buyer in Q2 2025 was Dragoneer Investment Group, an estimated $153M added.
  • The largest Inspire Medical Systems seller in Q2 2025 was Invesco, an estimated $76.2M sold.

Based on aggregated 13F filings for Q2 2025.