Inspire Medical Systems, Inc.
INSP- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001609550
In the last 90 days, Inspire Medical Systems, Inc. insiders filed 0 open-market purchases and 1 sale; 275 institutions reported holding it in 13F filings for Q2 2026, worth $1.65B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Inspire Medical Systems, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 325
- −27 vs. Q2 2025
- Shares held
- 31.1M
- −2.40M (−7.2%) vs. Q2 2025
- Total value
- $2.31B
- −$2.04B (−46.9%) vs. Q2 2025
- New holders
- 66
- 97 more added
- Sold out
- 93
- 131 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting INSP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 275 | $1.65B |
| Q1 2026 | 301 | $1.80B |
| Q4 2025 | 343 | $3.12B |
| Q3 2025 | 325 | $2.31B |
| Q2 2025 | 356 | $4.39B |
| Q1 2025 | 363 | $5.46B |
| Q4 2024 | 357 | $6.20B |
| Q3 2024 | 347 | $7.03B |
| Q2 2024 | 325 | $4.23B |
| Q1 2024 | 327 | $6.83B |
| Q4 2023 | 343 | $6.31B |
| Q3 2023 | 365 | $5.65B |
| Q2 2023 | 407 | $9.11B |
| Q1 2023 | 374 | $6.68B |
| Q4 2022 | 340 | $7.11B |
| Q3 2022 | 301 | $5.01B |
| Q2 2022 | 287 | $5.01B |
| Q1 2022 | 299 | $6.92B |
| Q4 2021 | 289 | $5.95B |
| Q3 2021 | 254 | $5.91B |
| Q2 2021 | 248 | $4.83B |
| Q1 2021 | 251 | $5.21B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Thrivent Financial for Lutherans | 19,415 | $1.44M | 0.00% | −91,253−82.5% | Reduced |
| Two Sigma Advisers, LP | 20,000 | $1.48M | 0.00% | +20,000 | New |
| Thornburg Investment Management Inc | 20,364 | $1.51M | 0.02% | −564−2.7% | Reduced |
| New York State Teachers Retirement System | 21,090 | $1.56M | 0.00% | −400−1.9% | Reduced |
| Neo Ivy Capital Management | 21,688 | $1.61M | 0.39% | +21,656+67,675.0% | Added |
| Lighthouse Investment Partners, LLC | 22,000 | $1.63M | 0.06% | +22,000 | New |
| Edgestream Partners, L.P. | 22,956 | $1.70M | 0.05% | −37,242−61.9% | Reduced |
| Squarepoint Ops LLC | 23,144 | $1.72M | 0.00% | +23,144 | New |
| Victory Capital Management Inc | 23,167 | $1.72M | 0.00% | −39,540−63.1% | Reduced |
| State of New Jersey Common Pension Fund D | 23,216 | $1.72M | 0.01% | +10,311+79.9% | Added |
| Great West Life Assurance Co | 22,993 | $1.74M | 0.00% | −1,504−6.1% | Reduced |
| Algert Global LLC | 23,487 | $1.74M | 0.03% | +1,310+5.9% | Added |
| Bank of Nova Scotia | 24,198 | $1.80M | 0.00% | +24,198 | New |
| Oak Ridge Investments LLC | 24,261 | $1.80M | 0.12% | −2,092−7.9% | Reduced |
| Prudential Financial Inc | 24,830 | $1.84M | 0.00% | −3,670−12.9% | Reduced |
| Price T Rowe Associates Inc | 24,928 | $1.85M | 0.00% | −38,710−60.8% | Reduced |
| Baird Financial Group, Inc. | 25,149 | $1.87M | 0.00% | −3,624−12.6% | Reduced |
| Illinois Municipal Retirement Fund | 25,424 | $1.89M | 0.02% | +18,400+262.0% | Added |
| California State Teachers Retirement System | 26,303 | $1.95M | 0.00% | −1,251−4.5% | Reduced |
| EFG Asset Management (North America) Corp. | 27,634 | $2.05M | 0.26% | +16,887+157.1% | Added |
| Gotham Asset Management, LLC | 29,090 | $2.16M | 0.01% | +29,090 | New |
| State Board of Administration of Florida Retirement System | 30,940 | $2.30M | 0.00% | −727−2.3% | Reduced |
| ExodusPoint Capital Management, LP | 32,821 | $2.44M | 0.03% | +32,821 | New |
| Voya Investment Management LLC | 35,826 | $2.66M | 0.00% | −142,493−79.9% | Reduced |
| Bullseye Asset Management LLC | 36,128 | $2.68M | 1.40% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 37,058 | $2.75M | 0.05% | +37,058 | New |
| Two Sigma Investments, LP | 37,152 | $2.76M | 0.00% | +17,802+92.0% | Added |
| Point72 Hong Kong Ltd | 39,122 | $2.90M | 0.13% | +21,672+124.2% | Added |
| Canada Pension Plan Investment Board | 39,600 | $2.94M | 0.00% | +29,200+280.8% | Added |
| Kopp Family Office, LLC | 40,614 | $3.01M | 1.96% | 00.0% | Unchanged |
| Quantbot Technologies LP | 41,063 | $3.05M | 0.08% | +41,063 | New |
| Bank of Montreal | 41,916 | $3.11M | 0.00% | +36,409+661.1% | Added |
| Citigroup Inc | 42,328 | $3.14M | 0.00% | −9,200−17.9% | Reduced |
| HSBC Holdings PLC | 43,538 | $3.19M | 0.00% | +35,576+446.8% | Added |
| Macquarie Group Ltd | 43,324 | $3.21M | 0.00% | −452,232−91.3% | Reduced |
| HRT Financial LP | 45,681 | $3.39M | 0.01% | +45,681 | New |
| Teachers Retirement System of the State of Kentucky | 46,366 | $3.44M | 0.03% | +3,642+8.5% | Added |
| Nuveen, LLC | 47,852 | $3.55M | 0.00% | −165−0.3% | Reduced |
| AQR Capital Management LLC | 49,417 | $3.67M | 0.00% | −71,993−59.3% | Reduced |
| Affinity Asset Advisors, LLC | 50,000 | $3.71M | 0.35% | +50,000 | New |
| New York State Common Retirement Fund | 50,247 | $3.73M | 0.00% | −141,021−73.7% | Reduced |
| Rheos Capital Works Inc. | 52,400 | $3.89M | 0.22% | 00.0% | Unchanged |
| Swiss National Bank | 54,400 | $4.04M | 0.00% | −2,400−4.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 55,805 | $4.14M | 0.01% | −1,806−3.1% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 58,497 | $4.34M | 0.01% | +58,497 | New |
| Bellevue Group AG | 58,648 | $4.35M | 0.09% | −17,012−22.5% | Reduced |
| Rhenman & Partners Asset Management AB | 61,000 | $4.53M | 0.50% | +30,500+100.0% | Added |
| Weiss Asset Management LP | 63,029 | $4.68M | 0.07% | +63,029 | New |
| Mairs & Power Inc | 65,446 | $4.86M | 0.05% | −2,358−3.5% | Reduced |
| Rhumbline Advisers | 67,200 | $4.99M | 0.00% | −3,555−5.0% | Reduced |
| Susquehanna International Group, LLP | 69,328 | $5.14M | 0.01% | +51,299+284.5% | Added |
| Jane Street Group, LLC | 71,451 | $5.30M | 0.01% | +71,451 | New |
| Verition Fund Management LLC | 71,695 | $5.32M | 0.03% | +55,261+336.3% | Added |
| Capital Fund Management S.A. | 72,997 | $5.42M | 0.05% | +4,334+6.3% | Added |
| State of Wisconsin Investment Board | 73,104 | $5.42M | 0.01% | +4,624+6.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 75,555 | $5.61M | 0.09% | +75,555 | New |
| Voleon Capital Management LP | 78,518 | $5.83M | 0.14% | +78,518 | New |
| JPMorgan Chase & Co | 80,374 | $5.96M | 0.00% | −303,667−79.1% | Reduced |
| Qube Research & Technologies Ltd | 82,810 | $6.14M | 0.01% | +82,810 | New |
| Man Group plc | 83,845 | $6.22M | 0.01% | −296,453−78.0% | Reduced |
| Legal & General Group Plc | 84,280 | $6.25M | 0.00% | −11,408−11.9% | Reduced |
| Voloridge Investment Management, LLC | 88,301 | $6.55M | 0.02% | +88,301 | New |
| Bridgewater Associates, LP | 88,952 | $6.60M | 0.03% | −52,695−37.2% | Reduced |
| Ameriprise Financial Inc | 89,071 | $6.61M | 0.00% | −23,379−20.8% | Reduced |
| Lazard Asset Management LLC | 89,605 | $6.65M | 0.01% | +17,500+24.3% | Added |
| Winton Group Ltd | 91,458 | $6.79M | 0.25% | +83,369+1,030.6% | Added |
| Point72 Asset Management, L.P. | 91,896 | $6.82M | 0.01% | +16,491+21.9% | Added |
| Invesco Ltd. | 92,787 | $6.88M | 0.00% | −240,445−72.2% | Reduced |
| Cubist Systematic Strategies, LLC | 97,387 | $7.23M | 0.10% | +97,387 | New |
| Y-Intercept (Hong Kong) Ltd | 99,049 | $7.35M | 0.18% | +83,883+553.1% | Added |
| VGI Partners Ltd | 101,714 | $7.55M | 0.54% | +101,714 | New |
| Riverbridge Partners LLC | 103,571 | $7.68M | 0.13% | −10,315−9.1% | Reduced |
| Federated Hermes, Inc. | 103,804 | $7.70M | 0.01% | −124,528−54.5% | Reduced |
| Public Sector Pension Investment Board | 104,984 | $7.79M | 0.03% | +4,479+4.5% | Added |
| WCM Investment Management, LLC | 107,032 | $8.09M | 0.02% | −3,701−3.3% | Reduced |
| Rock Springs Capital Management LP | 110,500 | $8.20M | 0.48% | +3,000+2.8% | Added |
| Ra Capital Management, L.P. | 114,901 | $8.53M | 0.11% | +114,901 | New |
| Integral Health Asset Management, LLC | 120,000 | $8.90M | 0.65% | +50,000+71.4% | Added |
| Credit Agricole S A | 125,255 | $9.29M | 0.03% | +125,255 | New |
| Walleye Capital LLC | 128,613 | $9.54M | 0.08% | +128,595+714,416.7% | Added |
| Principal Financial Group Inc | 128,984 | $9.57M | 0.00% | −16,718−11.5% | Reduced |
| Marshall Wace, LLP | 134,269 | $9.96M | 0.01% | +118,364+744.2% | Added |
| Vestal Point Capital, LP | 135,000 | $10.0M | 0.45% | +135,000 | New |
| Wasatch Advisors Inc | 135,914 | $10.1M | 0.05% | −1,498,481−91.7% | Reduced |
| Capstone Investment Advisors, LLC | 136,807 | $10.2M | 0.09% | +132,432+3,027.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 139,317 | $10.3M | 0.03% | −73,426−34.5% | Reduced |
| M&G Plc | 144,960 | $10.7M | 0.06% | +92,036+173.9% | Added |
| Renaissance Technologies LLC | 155,000 | $11.5M | 0.02% | +28,200+22.2% | Added |
| Frontier Capital Management Co LLC | 162,295 | $12.0M | 0.11% | −530,908−76.6% | Reduced |
| Bank of New York Mellon Corp | 166,876 | $12.4M | 0.00% | −160,877−49.1% | Reduced |
| Atika Capital Management LLC | 187,600 | $13.9M | 1.19% | +25,700+15.9% | Added |
| Northern Trust Corp | 189,764 | $14.1M | 0.00% | −12,747−6.3% | Reduced |
| Bamco Inc | 190,023 | $14.1M | 0.04% | −301,729−61.4% | Reduced |
| Charles Schwab Investment Management Inc | 193,134 | $14.3M | 0.00% | −90,466−31.9% | Reduced |
| Keybank National Association | 200,005 | $14.8M | 0.05% | −626−0.3% | Reduced |
| Eventide Asset Management, LLC | 256,658 | $19.0M | 0.31% | +100,000+63.8% | Added |
| Amundi | 255,124 | $19.5M | 0.01% | +71,168+38.7% | Added |
| Goldman Sachs Group Inc | 263,224 | $19.5M | 0.00% | +169,158+179.8% | Added |
| Brown Capital Management LLC | 278,040 | $20.6M | 0.85% | −89,401−24.3% | Reduced |
| Bank of America Corp | 288,828 | $21.4M | 0.00% | +34,354+13.5% | Added |