INSP Inspire Medical Systems, Inc.

TSXV
$74.32

Inspire Medical Systems, Inc. (INSP) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
-15.79
16 buyers / 22 sellers
SELLING
Funds compared
40
funds with comparable INSP positions
30 current holders · 35 prior-quarter holders
Net share change
+568.1K
+4.38M added, -3.82M cut
Position activity
5 new 11 increased 12 reduced 10 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Soleus Capital Management Growth Healthcare Increased +1.36M +235.1% $60.5M 3.0% 72
Vestal Point Capital Growth Healthcare Sold Out -539.3K -100.0% $24.1M 0.0% 66
RA Capital Management Growth Healthcare Sold Out -325.7K -100.0% $14.5M 0.0% 66
Bridgewater Associates Quant Macro Sold Out -173.5K -100.0% $7.7M 0.0% 63
Nantahala Capital Management Event Long/Short New +538.9K — $24.0M 0.8% 61
Balyasny Asset Management L.P. Sold Out -151.9K -100.0% $6.8M 0.0% 59
Integral Health Asset Management Growth Healthcare New +100.0K — $4.5M 0.2% 59
TWO SIGMA INVESTMENTS, LP Quant Sold Out -85.1K -100.0% $3.8M 0.0% 59
Deerfield Management Growth Healthcare Reduced -1.41M -52.0% $62.7M 0.7% 58
Qube Research & Technologies Ltd Quant Sold Out -66.2K -100.0% $3.0M 0.0% 57

Most significant buyers

By move score, not size.

  • Soleus Capital Management Increased · +1.36M
  • Nantahala Capital Management New · +538.9K
  • Integral Health Asset Management New · +100.0K
  • ExodusPoint Capital Management New · +25.7K
  • Weiss Asset Management New · +8.8K

Most significant sellers

By move score, not size.

  • Vestal Point Capital Sold Out · -539.3K
  • RA Capital Management Sold Out · -325.7K
  • Bridgewater Associates Sold Out · -173.5K
  • Balyasny Asset Management L.P. Sold Out · -151.9K
  • TWO SIGMA INVESTMENTS, LP Sold Out · -85.1K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Soleus Capital Management 2 1.9M 576.3K +1.36M +235.1% 3.0% Increased 72
Vestal Point Capital 1 0 539.3K -539.3K -100.0% 0.0% Sold Out 66
RA Capital Management 1 0 325.7K -325.7K -100.0% 0.0% Sold Out 66
Bridgewater Associates 1 0 173.5K -173.5K -100.0% 0.0% Sold Out 63
Nantahala Capital Management 3 538.9K 0 +538.9K — 0.8% New 61
Balyasny Asset Management L.P. 2 0 151.9K -151.9K -100.0% 0.0% Sold Out 59
Integral Health Asset Management 2 100.0K 0 +100.0K — 0.2% New 59
TWO SIGMA INVESTMENTS, LP 2 0 85.1K -85.1K -100.0% 0.0% Sold Out 59
Deerfield Management 1 1.3M 2.7M -1.41M -52.0% 0.7% Reduced 58
Qube Research & Technologies Ltd 2 0 66.2K -66.2K -100.0% 0.0% Sold Out 57
Voloridge Investment Management 2 0 100.2K -100.2K -100.0% 0.0% Sold Out 56
ExodusPoint Capital Management 3 25.7K 0 +25.7K — 0.0% New 54
Weiss Asset Management 2 8.8K 0 +8.8K — 0.0% New 54
Man Group 3 0 54.5K -54.5K -100.0% 0.0% Sold Out 54
Trexquant Investment 3 0 121.5K -121.5K -100.0% 0.0% Sold Out 53
AQR Capital Management 3 1.9M 308.7K +1.55M +501.6% 0.0% Increased 51
Engineers Gate 4 0 29.6K -29.6K -100.0% 0.0% Sold Out 50
MILLENNIUM MANAGEMENT LLC 2 94.1K 386.1K -292.0K -75.6% 0.0% Reduced 49
Capital Fund Management 3 219.9K 109.0K +110.9K +101.7% 0.1% Increased 49
Rock Springs Capital Management 3 244.0K 131.8K +112.2K +85.1% 0.5% Increased 48
Quantbot Technologies 4 26.0K 0 +26.0K — 0.0% New 47
Voleon Capital Management 3 72.2K 33.1K +39.1K +118.0% 0.1% Increased 47
Brevan Howard Capital Management 3 43.2K 5.5K +37.7K +690.9% 0.0% Increased 45
Winton Group 4 37.4K 4.2K +33.2K +790.8% 0.1% Increased 45
WORLDQUANT MILLENNIUM ADVISORS LLC 2 28.4K 75.2K -46.9K -62.3% 0.0% Reduced 42
Squarepoint Ops LLC 2 24.3K 66.8K -42.6K -63.7% 0.0% Reduced 41
Gotham Asset Management, LLC 2 35.8K 87.7K -51.9K -59.2% 0.0% Reduced 40
Boothbay Fund Management 4 4.6K 22.0K -17.5K -79.3% 0.0% Reduced 38
D. E. Shaw & Co., Inc. 1 1.5M 1.2M +281.9K +23.7% 0.0% Increased 37
Edgestream Partners 4 133.8K 82.3K +51.5K +62.6% 0.2% Increased 36
Y-Intercept 4 55.7K 158.3K -102.6K -64.8% 0.1% Reduced 36
CITADEL ADVISORS LLC 1 506.3K 394.1K +112.3K +28.5% 0.0% Increased 36
Jain Global 3 6.7K 14.8K -8.1K -54.9% 0.0% Reduced 35
Schonfeld Strategic Advisors 3 11.5K 24.2K -12.7K -52.4% 0.0% Reduced 33
ADAR1 Capital Management 3 374.6K 405.2K -30.6K -7.5% 0.8% Reduced 33
RENAISSANCE TECHNOLOGIES LLC 1 426.0K 470.0K -44.0K -9.4% 0.0% Reduced 32
Walleye Capital 3 245.8K 358.5K -112.7K -31.4% 0.1% Reduced 31
Tudor Investment Corporation 2 169.1K 167.2K +1.9K +1.1% 0.0% Increased 23
Braidwell 2 677.6K 677.6K 0 +0.0% 1.2% Unchanged 27
Palo Alto Investors 2 8.8K 8.8K 0 +0.0% 0.1% Unchanged 20

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.