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Inspire Medical Systems

301 hedge funds and large institutions have $1.8B invested in Inspire Medical Systems in 2026 Q1 according to their latest regulatory filings, with 59 funds opening new positions, 119 increasing their positions, 100 reducing their positions, and 91 closing their positions.

New
Increased
Maintained
Reduced
Closed

19% more repeat investments, than reductions

Existing positions increased: 119 | Existing positions reduced: 100

4.5% more ownership

Funds ownership: 116.62%121.12% (+4.5%)

12% less funds holding

Funds holding: 342301 (-41)

35% less first-time investments, than exits

New positions opened: 59 | Existing positions closed: 91

42% less capital invested

Capital invested by funds: $3.12B → $1.8B (-$1.33B)

71% less call options, than puts

Call options by funds: $4.94M | Put options by funds: $17M

Holders
301
Holders Change
-41
Holders Change %
-11.99%
% of All Funds
3.71%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
59
Increased
119
Reduced
100
Closed
91
Calls
$4.94M
Puts
$17M
Net Calls
-$12.1M
Net Calls Change
-$6.76M
Name Holding Trade Value Shares
Change
Change in
Stake
Marshall Wace
301
Marshall Wace
United Kingdom
-$49M -531,079 Closed
EAM
302
Eventide Asset Management
Massachusetts
-$40.6M -440,205 Closed
DCM
303
Driehaus Capital Management
Illinois
-$32.1M -348,500 Closed
Jane Street
304
Jane Street
New York
-$19.4M -277,199 Closed
KeyBank National Association
305
KeyBank National Association
Ohio
-$18.4M -200,042 Closed
FCM
306
Frontier Capital Management
Massachusetts
-$13.1M -142,007 Closed
Connor, Clark & Lunn Investment Management (CC&L)
307
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
-$12.6M -136,420 Closed
Norges Bank
308
Norges Bank
Norway
-$12M -129,570 Closed
HF
309
HRT Financial
New York
-$8.52M -121,761 Closed
IG
310
ING Group
Netherlands
-$8.14M -88,300 Closed
Arrowstreet Capital
311
Arrowstreet Capital
Massachusetts
-$7.01M -76,028 Closed
IHAM
312
Integral Health Asset Management
New York
-$6.92M -75,000 Closed
Credit Agricole
313
Credit Agricole
France
-$6.24M -67,695 Closed
Nomura Holdings
314
Nomura Holdings
Japan
-$5.62M -60,950 Closed
MPI
315
Mairs & Power Inc
Minnesota
-$5.31M -57,616 Closed
ECM
316
ExodusPoint Capital Management
New York
-$3.59M -38,896 Closed
RPAM
317
Rhenman & Partners Asset Management
Sweden
-$3.3M -35,800 Closed
EI
318
EFG International
-$3.11M -33,813 Closed
Raymond James Financial
319
Raymond James Financial
Florida
-$2.82M -30,622 Closed
TIM
320
Thornburg Investment Management
New Mexico
-$2.32M -25,197 Closed
MCM
321
Moore Capital Management
New York
-$2.31M -25,096 Closed
PAMP
322
Polar Asset Management Partners
Ontario, Canada
-$2.31M -25,000 Closed
BPC
323
Banque Pictet & Cie
Switzerland
-$2.26M -24,474 Closed
Baird Financial Group
324
Baird Financial Group
Wisconsin
-$2.02M -21,910 Closed
ACM
325
Aquatic Capital Management
Illinois
-$1.99M -21,535 Closed