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 |
|---|---|---|---|---|---|
| Police & Firemen's Retirement System of New Jersey | 11,823 | $1.09M | 0.01% | −709−5.7% | Reduced |
| Louisiana State Employees Retirement System | 12,100 | $1.12M | 0.02% | −300−2.4% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 12,592 | $1.16M | 0.00% | +12,592 | New |
| Quantinno Capital Management LP | 13,048 | $1.20M | 0.00% | +1,268+10.8% | Added |
| Congress Asset Management Co | 13,067 | $1.21M | 0.01% | −434−3.2% | Reduced |
| State of Tennessee, Treasury Department | 16,697 | $1.27M | 0.00% | −600−3.5% | Reduced |
| Dynamic Technology Lab Private Ltd | 13,883 | $1.28M | 0.29% | +9,605+224.5% | Added |
| LPL Financial LLC | 13,992 | $1.29M | 0.00% | +2,797+25.0% | Added |
| FORA Capital, LLC | 14,266 | $1.32M | 0.16% | +5,338+59.8% | Added |
| Omers Administration Corp | 14,553 | $1.34M | 0.01% | +14,553 | New |
| 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 |
| State of Alaska, Department of Revenue | 15,096 | $1.39M | 0.01% | −99−0.7% | Reduced |
| Gilder Gagnon Howe & Co LLC | 15,241 | $1.41M | 0.01% | −2,359−13.4% | Reduced |
| Exit Wealth Advisors, LLC. | 16,230 | $1.50M | 0.88% | +16,230 | New |
| Envestnet Asset Management Inc | 16,453 | $1.52M | 0.00% | +4,335+35.8% | Added |
| Edgestream Partners, L.P. | 17,953 | $1.66M | 0.05% | −5,003−21.8% | Reduced |
| Jump Financial, LLC | 18,636 | $1.72M | 0.02% | +7,643+69.5% | Added |
| Engineers Gate Manager LP | 19,204 | $1.77M | 0.02% | +16,262+552.8% | Added |
| Comerica Bank | 21,093 | $1.95M | 0.01% | +6,699+46.5% | Added |
| Aquatic Capital Management LLC | 21,535 | $1.99M | 0.06% | −15,523−41.9% | Reduced |
| New York State Teachers Retirement System | 21,595 | $1.99M | 0.00% | +505+2.4% | Added |
| Landscape Capital Management, L.L.C. | 21,855 | $2.02M | 0.14% | +3,567+19.5% | Added |
| Baird Financial Group, Inc. | 21,910 | $2.02M | 0.00% | −3,239−12.9% | Reduced |
| Manufacturers Life Insurance Company, The | 21,940 | $2.03M | 0.00% | +16,693+318.1% | Added |
| Great West Life Assurance Co | 22,993 | $2.12M | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 23,415 | $2.15M | 0.00% | +6,769+40.7% | Added |
| Prudential Financial Inc | 23,675 | $2.18M | 0.00% | −1,155−4.7% | Reduced |
| TD Asset Management Inc | 23,800 | $2.20M | 0.00% | +23,800 | New |
| Banque Pictet & Cie SA | 24,474 | $2.26M | 0.02% | +21,747+797.5% | Added |
| Schonfeld Strategic Advisors LLC | 24,947 | $2.30M | 0.01% | +19,794+384.1% | Added |
| Polar Asset Management Partners Inc. | 25,000 | $2.31M | 0.05% | +25,000 | New |
| Moore Capital Management, LP | 25,096 | $2.31M | 0.05% | +25,096 | New |
| Thornburg Investment Management Inc | 25,197 | $2.32M | 0.03% | +4,833+23.7% | Added |
| California State Teachers Retirement System | 26,186 | $2.42M | 0.00% | −117−0.4% | Reduced |
| AQR Capital Management LLC | 27,040 | $2.49M | 0.00% | −22,377−45.3% | Reduced |
| Thrivent Financial for Lutherans | 27,276 | $2.52M | 0.00% | +7,861+40.5% | Added |
| State Board of Administration of Florida Retirement System | 29,990 | $2.77M | 0.00% | −950−3.1% | Reduced |
| Raymond James Financial Inc | 30,622 | $2.82M | 0.00% | +30,622 | New |
| Alliancebernstein L.P. | 30,636 | $2.83M | 0.00% | +23,863+352.3% | Added |
| Teachers Retirement System of the State of Kentucky | 31,069 | $2.87M | 0.02% | −15,297−33.0% | Reduced |
| State of Wisconsin Investment Board | 31,469 | $2.90M | 0.01% | −41,635−57.0% | Reduced |
| Voya Investment Management LLC | 32,549 | $3.00M | 0.00% | −3,277−9.1% | Reduced |
| EFG International AG | 33,813 | $3.11M | 0.06% | +33,813 | New |
| Citigroup Inc | 34,672 | $3.20M | 0.00% | −7,656−18.1% | Reduced |
| Rhenman & Partners Asset Management AB | 35,800 | $3.30M | 0.31% | −25,200−41.3% | Reduced |
| Bullseye Asset Management LLC | 36,128 | $3.33M | 1.80% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 38,404 | $3.54M | 0.01% | +34,881+990.1% | Added |
| SG Americas Securities, LLC | 38,449 | $3.55M | 0.00% | +30,695+395.9% | Added |
| ExodusPoint Capital Management, LP | 38,896 | $3.59M | 0.04% | +6,075+18.5% | Added |
| Bank of Nova Scotia | 40,042 | $3.69M | 0.01% | +15,844+65.5% | Added |
| Man Group plc | 41,425 | $3.82M | 0.01% | −42,420−50.6% | Reduced |
| HSBC Holdings PLC | 43,328 | $4.00M | 0.00% | −210−0.5% | Reduced |
| Lazard Asset Management LLC | 44,981 | $4.15M | 0.01% | −44,624−49.8% | Reduced |
| JPMorgan Chase & Co | 45,388 | $4.19M | 0.00% | −34,986−43.5% | Reduced |
| XTX Topco Ltd | 45,783 | $4.22M | 0.11% | +38,494+528.1% | Added |
| Algert Global LLC | 46,250 | $4.27M | 0.07% | +22,763+96.9% | Added |
| Susquehanna International Group, LLP | 48,497 | $4.47M | 0.01% | −20,831−30.0% | Reduced |
| Gotham Asset Management, LLC | 48,547 | $4.48M | 0.02% | +19,457+66.9% | Added |
| SEI Investments Co | 50,940 | $4.70M | 0.00% | +34,515+210.1% | Added |
| Nomura Asset Management International Inc. | 52,246 | $4.82M | 0.01% | +52,246 | New |
| Swiss National Bank | 55,500 | $5.12M | 0.00% | +1,100+2.0% | Added |
| Mairs & Power Inc | 57,616 | $5.31M | 0.05% | −7,830−12.0% | Reduced |
| Two Sigma Investments, LP | 59,515 | $5.49M | 0.01% | +22,363+60.2% | Added |
| Nomura Holdings Inc | 60,950 | $5.62M | 0.02% | +60,950 | New |
| Voleon Capital Management LP | 63,627 | $5.87M | 0.13% | −14,891−19.0% | Reduced |
| Rhumbline Advisers | 65,894 | $6.08M | 0.00% | −1,306−1.9% | Reduced |
| Credit Agricole S A | 67,695 | $6.24M | 0.02% | −57,560−46.0% | Reduced |
| New York State Common Retirement Fund | 68,774 | $6.34M | 0.01% | +18,527+36.9% | Added |
| Legal & General Group Plc | 69,756 | $6.43M | 0.00% | −14,524−17.2% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 70,635 | $6.51M | 0.15% | −28,414−28.7% | Reduced |
| Bridgewater Associates, LP | 71,727 | $6.62M | 0.02% | −17,225−19.4% | Reduced |
| Integral Health Asset Management, LLC | 75,000 | $6.92M | 0.35% | −45,000−37.5% | Reduced |
| Arrowstreet Capital, Limited Partnership | 76,028 | $7.01M | 0.00% | +76,028 | New |
| Walleye Capital LLC | 78,217 | $7.21M | 0.04% | −50,396−39.2% | Reduced |
| Glenmede Trust Co NA | 81,986 | $7.56M | 0.04% | +81,986 | New |
| Barclays PLC | 85,655 | $7.90M | 0.00% | +77,005+890.2% | Added |
| ING Groep NV | 88,300 | $8.14M | 0.05% | +74,800+554.1% | Added |
| Ameriprise Financial Inc | 91,277 | $8.42M | 0.00% | +2,206+2.5% | Added |
| Public Sector Pension Investment Board | 91,472 | $8.44M | 0.03% | −13,512−12.9% | Reduced |
| Riverbridge Partners LLC | 97,111 | $8.96M | 0.17% | −6,460−6.2% | Reduced |
| Bellevue Group AG | 100,761 | $9.29M | 0.18% | +42,113+71.8% | Added |
| Canada Pension Plan Investment Board | 105,500 | $9.73M | 0.01% | +65,900+166.4% | Added |
| Tudor Investment Corp Et Al | 112,873 | $10.4M | 0.06% | +112,873 | New |
| Wasatch Advisors Inc | 116,068 | $10.7M | 0.06% | −19,846−14.6% | Reduced |
| Rheos Capital Works Inc. | 117,400 | $10.8M | 0.69% | +65,000+124.0% | Added |
| Brown Capital Management LLC | 119,935 | $11.1M | 0.91% | −158,105−56.9% | Reduced |
| HRT Financial LP | 121,761 | $11.2M | 0.04% | +76,080+166.5% | Added |
| Capital Fund Management S.A. | 122,706 | $11.3M | 0.11% | +49,709+68.1% | Added |
| Principal Financial Group Inc | 125,519 | $11.6M | 0.01% | −3,465−2.7% | Reduced |
| Norges Bank | 129,570 | $12.0M | 0.00% | +129,570 | New |
| Rock Springs Capital Management LP | 131,000 | $12.1M | 0.62% | +20,500+18.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 136,420 | $12.6M | 0.03% | −2,897−2.1% | Reduced |
| FMR LLC | 137,306 | $12.7M | 0.00% | −612,006−81.7% | Reduced |
| Ra Capital Management, L.P. | 141,964 | $13.1M | 0.13% | +27,063+23.6% | Added |
| Frontier Capital Management Co LLC | 142,007 | $13.1M | 0.14% | −20,288−12.5% | Reduced |
| Nuveen, LLC | 159,421 | $14.7M | 0.00% | +111,569+233.2% | Added |
| Balyasny Asset Management LLC | 187,226 | $17.3M | 0.03% | −427,133−69.5% | Reduced |
| Voloridge Investment Management, LLC | 188,100 | $17.3M | 0.06% | +99,799+113.0% | Added |
| Charles Schwab Investment Management Inc | 194,155 | $17.9M | 0.00% | +1,021+0.5% | Added |