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, Q4 2025
Institutional positions in Inspire Medical Systems, Inc. as of Dec 31, 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
- 343
- +24 vs. Q3 2025
- Shares held
- 33.9M
- +2.96M (+9.6%) vs. Q3 2025
- Total value
- $3.12B
- +$828.8M (+36.1%) vs. Q3 2025
- New holders
- 93
- 114 more added
- Sold out
- 69
- 114 more reduced
6 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Voya Investment Management LLC | 32,549 | $3.00M | 0.00% | −3,277−9.1% | Reduced |
| State of Wisconsin Investment Board | 31,469 | $2.90M | 0.01% | −41,635−57.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 31,069 | $2.87M | 0.02% | −15,297−33.0% | Reduced |
| Alliancebernstein L.P. | 30,636 | $2.83M | 0.00% | +23,863+352.3% | Added |
| Raymond James Financial Inc | 30,622 | $2.82M | 0.00% | +30,622 | New |
| State Board of Administration of Florida Retirement System | 29,990 | $2.77M | 0.00% | −950−3.1% | Reduced |
| Thrivent Financial for Lutherans | 27,276 | $2.52M | 0.00% | +7,861+40.5% | Added |
| AQR Capital Management LLC | 27,040 | $2.49M | 0.00% | −22,377−45.3% | Reduced |
| California State Teachers Retirement System | 26,186 | $2.42M | 0.00% | −117−0.4% | Reduced |
| Thornburg Investment Management Inc | 25,197 | $2.32M | 0.03% | +4,833+23.7% | Added |
| Moore Capital Management, LP | 25,096 | $2.31M | 0.05% | +25,096 | New |
| Polar Asset Management Partners Inc. | 25,000 | $2.31M | 0.05% | +25,000 | New |
| Schonfeld Strategic Advisors LLC | 24,947 | $2.30M | 0.01% | +19,794+384.1% | Added |
| Banque Pictet & Cie SA | 24,474 | $2.26M | 0.02% | +21,747+797.5% | Added |
| TD Asset Management Inc | 23,800 | $2.20M | 0.00% | +23,800 | New |
| Prudential Financial Inc | 23,675 | $2.18M | 0.00% | −1,155−4.7% | Reduced |
| Acadian Asset Management LLC | 23,415 | $2.15M | 0.00% | +6,769+40.7% | Added |
| Great West Life Assurance Co | 22,993 | $2.12M | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 21,940 | $2.03M | 0.00% | +16,693+318.1% | Added |
| Baird Financial Group, Inc. | 21,910 | $2.02M | 0.00% | −3,239−12.9% | Reduced |
| Landscape Capital Management, L.L.C. | 21,855 | $2.02M | 0.14% | +3,567+19.5% | Added |
| New York State Teachers Retirement System | 21,595 | $1.99M | 0.00% | +505+2.4% | Added |
| Aquatic Capital Management LLC | 21,535 | $1.99M | 0.06% | −15,523−41.9% | Reduced |
| Comerica Bank | 21,093 | $1.95M | 0.01% | +6,699+46.5% | Added |
| Engineers Gate Manager LP | 19,204 | $1.77M | 0.02% | +16,262+552.8% | Added |
| Jump Financial, LLC | 18,636 | $1.72M | 0.02% | +7,643+69.5% | Added |
| Edgestream Partners, L.P. | 17,953 | $1.66M | 0.05% | −5,003−21.8% | Reduced |
| Envestnet Asset Management Inc | 16,453 | $1.52M | 0.00% | +4,335+35.8% | Added |
| Exit Wealth Advisors, LLC. | 16,230 | $1.50M | 0.88% | +16,230 | New |
| Gilder Gagnon Howe & Co LLC | 15,241 | $1.41M | 0.01% | −2,359−13.4% | Reduced |
| State of Alaska, Department of Revenue | 15,096 | $1.39M | 0.01% | −99−0.7% | Reduced |
| ADAR1 Capital Management, LLC | 15,000 | $1.38M | 0.10% | +9,000+150.0% | Added |
| Parkman Healthcare Partners LLC | 15,000 | $1.38M | 0.13% | +15,000 | New |
| Omers Administration Corp | 14,553 | $1.34M | 0.01% | +14,553 | New |
| FORA Capital, LLC | 14,266 | $1.32M | 0.16% | +5,338+59.8% | Added |
| LPL Financial LLC | 13,992 | $1.29M | 0.00% | +2,797+25.0% | Added |
| Dynamic Technology Lab Private Ltd | 13,883 | $1.28M | 0.29% | +9,605+224.5% | Added |
| State of Tennessee, Treasury Department | 16,697 | $1.27M | 0.00% | −600−3.5% | Reduced |
| Congress Asset Management Co | 13,067 | $1.21M | 0.01% | −434−3.2% | Reduced |
| Quantinno Capital Management LP | 13,048 | $1.20M | 0.00% | +1,268+10.8% | Added |
| Cambridge Investment Research Advisors, Inc. | 12,592 | $1.16M | 0.00% | +12,592 | New |
| Louisiana State Employees Retirement System | 12,100 | $1.12M | 0.02% | −300−2.4% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 11,823 | $1.09M | 0.01% | −709−5.7% | Reduced |
| Treasurer of the State of North Carolina | 11,342 | $1.05M | 0.00% | −1,518−11.8% | Reduced |
| Victory Capital Management Inc | 11,322 | $1.04M | 0.00% | −11,845−51.1% | Reduced |
| Nordea Investment Management AB | 11,388 | $1.04M | 0.00% | −1,236−9.8% | Reduced |
| Russell Investments Group, Ltd. | 11,171 | $1.03M | 0.00% | +4,870+77.3% | Added |
| Verition Fund Management LLC | 11,106 | $1.02M | 0.01% | −60,589−84.5% | Reduced |
| Lecap Asset Management Ltd | 11,010 | $1.02M | 0.40% | +11,010 | New |
| Royal Bank of Canada | 10,984 | $1.01M | 0.00% | −2,928−21.0% | Reduced |
| Advisor Group Holdings, Inc. | 10,875 | $1.00M | 0.00% | −3,180−22.6% | Reduced |
| Brevan Howard Capital Management LP | 10,785 | $994.7K | 0.02% | −2,442−18.5% | Reduced |
| Handelsbanken Fonder AB | 9,800 | $904.0K | 0.00% | +1,900+24.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 9,423 | $869.1K | 0.00% | −2,667−22.1% | Reduced |
| Amalgamated Bank | 9,270 | $855.0K | 0.01% | +58+0.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,265 | $854.5K | 0.00% | +507+5.8% | Added |
| Hilltop Holdings Inc. | 9,244 | $852.6K | 0.05% | +9,244 | New |
| Campbell & CO Investment Adviser LLC | 9,220 | $850.4K | 0.04% | +6,480+236.5% | Added |
| Gsa Capital Partners LLP | 9,215 | $850.0K | 0.07% | +9,215 | New |
| Dark Forest Capital Management LP | 9,156 | $844.5K | 0.04% | +9,156 | New |
| Palo Alto Investors LP | 8,772 | $809.0K | 0.11% | +8,772 | New |
| DAFNA Capital Management LLC | 8,600 | $793.2K | 0.18% | −8,600−50.0% | Reduced |
| Diversified Trust Co | 8,432 | $777.7K | 0.01% | +592+7.6% | Added |
| Creative Planning | 8,171 | $753.6K | 0.00% | +5,007+158.2% | Added |
| Public Employees Retirement System of Ohio | 8,145 | $751.2K | 0.00% | −791−8.9% | Reduced |
| Leonteq Securities AG | 7,939 | $732.2K | 0.04% | +3,098+64.0% | Added |
| Arizona State Retirement System | 7,860 | $724.9K | 0.00% | −432−5.2% | Reduced |
| Entropy Technologies, LP | 7,624 | $703.2K | 0.04% | +7,624 | New |
| HighTower Advisors, LLC | 7,543 | $695.7K | 0.00% | +7,543 | New |
| Yousif Capital Management, LLC | 7,329 | $692.2K | 0.01% | −1,159−13.7% | Reduced |
| Oak Thistle LLC | 7,293 | $672.6K | 0.09% | +7,293 | New |
| Worldquant Millennium Advisors LLC | 7,204 | $664.4K | 0.00% | +7,204 | New |
| Sectoral Asset Management Inc | 7,200 | $664.1K | 0.53% | +7,200 | New |
| Everhart Financial Group, Inc. | 7,013 | $646.8K | 0.06% | +7,013 | New |
| Squarepoint Ops LLC | 6,822 | $629.2K | 0.00% | −16,322−70.5% | Reduced |
| Marex Group plc | 6,550 | $604.1K | 0.01% | −1,901−22.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,546 | $603.7K | 0.00% | −308−4.5% | Reduced |
| Intech Investment Management LLC | 6,220 | $573.7K | 0.01% | −2,281−26.8% | Reduced |
| Two Sigma Advisers, LP | 6,200 | $571.8K | 0.00% | −13,800−69.0% | Reduced |
| Oregon Public Employees Retirement Fund | 6,062 | $559.1K | 0.01% | −10−0.2% | Reduced |
| KLP Kapitalforvaltning AS | 6,000 | $553.4K | 0.00% | +400+7.1% | Added |
| Bessemer Group Inc | 5,707 | $527.0K | 0.00% | −1,369−19.3% | Reduced |
| Virtu Financial LLC | 5,712 | $527.0K | 0.02% | +1,639+40.2% | Added |
| Rockefeller Capital Management L.P. | 5,712 | $526.8K | 0.00% | +739+14.9% | Added |
| Cetera Investment Advisers | 5,621 | $518.4K | 0.00% | +5,621 | New |
| Counterpoint Mutual Funds LLC | 5,488 | $506.2K | 0.04% | +1,267+30.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 5,436 | $501.6K | 0.00% | +1,640+43.2% | Added |
| Maryland State Retirement & Pension System | 5,238 | $483.1K | 0.01% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 5,216 | $481.1K | 0.00% | +5,216 | New |
| Commonwealth Equity Services, LLC | 4,893 | $451.3K | 0.00% | −903−15.6% | Reduced |
| Concurrent Investment Advisors, LLC | 4,815 | $444.1K | 0.01% | +1,647+52.0% | Added |
| PDT Partners, LLC | 4,800 | $442.7K | 0.03% | +4,800 | New |
| Blair William & Co | 4,732 | $436.4K | 0.00% | −133−2.7% | Reduced |
| M&T Bank Corp | 4,708 | $434.1K | 0.00% | +4,708 | New |
| Wells Fargo & Company | 4,706 | $434.0K | 0.00% | −5,612−54.4% | Reduced |
| Guggenheim Capital LLC | 4,665 | $430.3K | 0.00% | +4,665 | New |
| RSM US Wealth Management LLC | 4,463 | $413.1K | 0.01% | +4,463 | New |
| Pictet Asset Management Holding SA | 4,476 | $412.8K | 0.00% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 4,438 | $409.3K | 0.01% | +4,438 | New |
| Janney Montgomery Scott LLC | 4,376 | $404.0K | 0.00% | +4,376 | New |