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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
MSRPS
151
Maryland State Retirement & Pension System
Maryland
$1.3M +$8.99K +62 +0.6%
SGH
152
Sivik Global Healthcare
Connecticut
$1.3M +$1.45M +10,000 New
JCIA
153
Jackson Creek Investment Advisors
Colorado
$1.25M +$168K +1,157 +14%
AB
154
Amalgamated Bank
New York
$1.24M +$18.1K +125 +1%
UOC
155
UBS O'Connor
Illinois
$1.24M +$221K +1,522 +19%
Ensign Peak Advisors
156
Ensign Peak Advisors
Utah
$1.23M -$250K -1,723 -15%
DB
157
Danske Bank
Denmark
$1.15M -$269K -1,854 -17%
ASRS
158
Arizona State Retirement System
Arizona
$1.13M +$12.9K +89 +1%
Citadel Advisors
159
Citadel Advisors
Florida
$1.13M -$7.48M -51,611 -86%
ERSOT
160
Employees Retirement System of Texas
Texas
$1.11M
Teacher Retirement System of Texas
161
Teacher Retirement System of Texas
Texas
$1.11M +$29.1K +201 +2%
QC
162
Quadrature Capital
United Kingdom
$1.1M +$519K +3,582 +73%
WG
163
Winton Group
United Kingdom
$1.05M +$211K +1,457 +22%
Zurich Cantonal Bank
164
Zurich Cantonal Bank
Switzerland
$1.04M
HSBC Holdings
165
HSBC Holdings
United Kingdom
$1.03M +$1.15M +7,962 New
Handelsbanken Fonder
166
Handelsbanken Fonder
Sweden
$1.02M -$305K -2,100 -21%
MPWT
167
MassMutual Private Wealth & Trust
Connecticut
$1.02M -$266K -1,835 -19%
Stifel Financial
168
Stifel Financial
Missouri
$1.01M +$212K +1,462 +23%
AG
169
AIA Group
Hong Kong
$1M -$387K -2,670 -26%
COPPSERS
170
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$983K +$68.4K +472 +7%
Commonwealth Equity Services
171
Commonwealth Equity Services
Massachusetts
$963K -$129K -888 -11%
JF
172
Jump Financial
Illinois
$931K +$1.04M +7,175 New
Deutsche Bank
173
Deutsche Bank
Germany
$922K +$41.3K +285 +4%
VRS
174
Virginia Retirement Systems
Virginia
$921K +$174K +1,200 +20%
Bessemer Group
175
Bessemer Group
New Jersey
$912K -$22.2K -153 -2%

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.