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 |
|---|---|---|---|---|---|
| Voya Investment Management LLC | 35,826 | $2.66M | 0.00% | −142,493−79.9% | Reduced |
| ExodusPoint Capital Management, LP | 32,821 | $2.44M | 0.03% | +32,821 | New |
| State Board of Administration of Florida Retirement System | 30,940 | $2.30M | 0.00% | −727−2.3% | Reduced |
| Gotham Asset Management, LLC | 29,090 | $2.16M | 0.01% | +29,090 | New |
| EFG Asset Management (North America) Corp. | 27,634 | $2.05M | 0.26% | +16,887+157.1% | Added |
| California State Teachers Retirement System | 26,303 | $1.95M | 0.00% | −1,251−4.5% | Reduced |
| Illinois Municipal Retirement Fund | 25,424 | $1.89M | 0.02% | +18,400+262.0% | Added |
| Baird Financial Group, Inc. | 25,149 | $1.87M | 0.00% | −3,624−12.6% | Reduced |
| Price T Rowe Associates Inc | 24,928 | $1.85M | 0.00% | −38,710−60.8% | Reduced |
| Prudential Financial Inc | 24,830 | $1.84M | 0.00% | −3,670−12.9% | Reduced |
| Oak Ridge Investments LLC | 24,261 | $1.80M | 0.12% | −2,092−7.9% | Reduced |
| Bank of Nova Scotia | 24,198 | $1.80M | 0.00% | +24,198 | New |
| Algert Global LLC | 23,487 | $1.74M | 0.03% | +1,310+5.9% | Added |
| Great West Life Assurance Co | 22,993 | $1.74M | 0.00% | −1,504−6.1% | Reduced |
| State of New Jersey Common Pension Fund D | 23,216 | $1.72M | 0.01% | +10,311+79.9% | Added |
| Victory Capital Management Inc | 23,167 | $1.72M | 0.00% | −39,540−63.1% | Reduced |
| Squarepoint Ops LLC | 23,144 | $1.72M | 0.00% | +23,144 | New |
| Edgestream Partners, L.P. | 22,956 | $1.70M | 0.05% | −37,242−61.9% | Reduced |
| Lighthouse Investment Partners, LLC | 22,000 | $1.63M | 0.06% | +22,000 | New |
| Neo Ivy Capital Management | 21,688 | $1.61M | 0.39% | +21,656+67,675.0% | Added |
| New York State Teachers Retirement System | 21,090 | $1.56M | 0.00% | −400−1.9% | Reduced |
| Thornburg Investment Management Inc | 20,364 | $1.51M | 0.02% | −564−2.7% | Reduced |
| Two Sigma Advisers, LP | 20,000 | $1.48M | 0.00% | +20,000 | New |
| Thrivent Financial for Lutherans | 19,415 | $1.44M | 0.00% | −91,253−82.5% | Reduced |
| Holocene Advisors, LP | 19,171 | $1.42M | 0.00% | +19,171 | New |
| Exome Asset Management LLC | 18,600 | $1.38M | 0.91% | +18,600 | New |
| Landscape Capital Management, L.L.C. | 18,288 | $1.36M | 0.09% | +13,305+267.0% | Added |
| Gilder Gagnon Howe & Co LLC | 17,600 | $1.31M | 0.01% | −74,156−80.8% | Reduced |
| Advisor Group Holdings, Inc. | 14,055 | $1.29M | 0.00% | −222−1.6% | Reduced |
| State of Tennessee, Treasury Department | 17,297 | $1.28M | 0.00% | +852+5.2% | Added |
| DAFNA Capital Management LLC | 17,200 | $1.28M | 0.32% | +17,200 | New |
| Acadian Asset Management LLC | 16,646 | $1.23M | 0.00% | +16,646 | New |
| SEI Investments Co | 16,425 | $1.22M | 0.00% | −116,644−87.7% | Reduced |
| State of Alaska, Department of Revenue | 15,195 | $1.13M | 0.01% | −2,361−13.4% | Reduced |
| Comerica Bank | 14,394 | $1.07M | 0.00% | −26,613−64.9% | Reduced |
| Royal Bank of Canada | 13,912 | $1.03M | 0.00% | +1,183+9.3% | Added |
| Congress Asset Management Co | 13,501 | $1.00M | 0.01% | −359,846−96.4% | Reduced |
| ING Groep NV | 13,500 | $1.00M | 0.01% | +13,500 | New |
| Brevan Howard Capital Management LP | 13,227 | $981.4K | 0.01% | −8,324−38.6% | Reduced |
| Monimus Capital Management, LP | 13,077 | $970.3K | 0.72% | −13,298−50.4% | Reduced |
| Treasurer of the State of North Carolina | 12,860 | $954.0K | 0.00% | −506−3.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 12,532 | $929.9K | 0.01% | +1,343+12.0% | Added |
| Nordea Investment Management AB | 12,624 | $924.1K | 0.00% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 12,400 | $920.1K | 0.02% | −1,400−10.1% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 12,362 | $917.3K | 0.01% | −13,400−52.0% | Reduced |
| Envestnet Asset Management Inc | 12,118 | $899.1K | 0.00% | −19,776−62.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 12,090 | $897.1K | 0.00% | +1,770+17.2% | Added |
| Natixis | 12,088 | $896.9K | 0.00% | +12,088 | New |
| Quantinno Capital Management LP | 11,780 | $874.1K | 0.00% | +8,573+267.3% | Added |
| Quantitative Investment Management, LLC | 11,692 | $867.0K | 0.12% | +11,692 | New |
| LPL Financial LLC | 11,195 | $830.7K | 0.00% | −282−2.5% | Reduced |
| Jump Financial, LLC | 10,993 | $815.7K | 0.01% | +3,818+53.2% | Added |
| Fox Run Management, L.L.C. | 10,782 | $800.0K | 0.12% | +10,782 | New |
| Hussman Strategic Advisors, Inc. | 10,500 | $779.1K | 0.17% | −4,200−28.6% | Reduced |
| Wells Fargo & Company | 10,318 | $765.6K | 0.00% | −1,942−15.8% | Reduced |
| Magnetar Financial LLC | 10,245 | $760.2K | 0.00% | −57,134−84.8% | Reduced |
| Group One Trading, L.P. | 10,240 | $759.8K | 0.02% | +10,240 | New |
| Amalgamated Bank | 9,212 | $684.0K | 0.00% | −355−3.7% | Reduced |
| Public Employees Retirement System of Ohio | 8,936 | $663.1K | 0.00% | −42,841−82.7% | Reduced |
| FORA Capital, LLC | 8,928 | $662.5K | 0.12% | +7,235+427.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,758 | $649.8K | 0.00% | +727+9.1% | Added |
| Freestone Grove Partners LP | 8,676 | $643.8K | 0.00% | +8,676 | New |
| Barclays PLC | 8,650 | $641.8K | 0.00% | −3,343−27.9% | Reduced |
| Employees Retirement System of Texas | 8,580 | $637.0K | 0.01% | 00.0% | Unchanged |
| Intech Investment Management LLC | 8,501 | $630.8K | 0.01% | −44,082−83.8% | Reduced |
| Yousif Capital Management, LLC | 8,488 | $629.8K | 0.01% | −2,780−24.7% | Reduced |
| Marex Group plc | 8,451 | $627.1K | 0.01% | +4,279+102.6% | Added |
| Arizona State Retirement System | 8,292 | $615.3K | 0.00% | −393−4.5% | Reduced |
| Handelsbanken Fonder AB | 7,900 | $586.0K | 0.00% | 00.0% | Unchanged |
| Diversified Trust Co | 7,840 | $581.7K | 0.01% | +3,167+67.8% | Added |
| SG Americas Securities, LLC | 7,754 | $575.0K | 0.00% | +3,454+80.3% | Added |
| XTX Topco Ltd | 7,289 | $540.8K | 0.03% | +300+4.3% | Added |
| Deutsche Bank AG | 7,188 | $533.4K | 0.00% | +82+1.2% | Added |
| Bessemer Group Inc | 7,076 | $525.0K | 0.00% | +46+0.7% | Added |
| Fred Alger Management, LLC | 6,936 | $514.7K | 0.00% | −115,722−94.3% | Reduced |
| AIA Group Ltd | 6,902 | $512.1K | 0.01% | −840−10.8% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,854 | $508.6K | 0.00% | −718−9.5% | Reduced |
| Alliancebernstein L.P. | 6,773 | $502.6K | 0.00% | +346+5.4% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 6,660 | $494.1K | 0.08% | +6,660 | New |
| Axq Capital, LP | 6,429 | $477.0K | 0.18% | +6,429 | New |
| Sherbrooke Park Advisers LLC | 6,353 | $471.4K | 0.22% | +1,803+39.6% | Added |
| Russell Investments Group, Ltd. | 6,301 | $467.6K | 0.00% | +2,883+84.3% | Added |
| Virginia Retirement Systems Et Al | 6,094 | $452.2K | 0.00% | −1,000−14.1% | Reduced |
| Oregon Public Employees Retirement Fund | 6,072 | $450.5K | 0.01% | −700−10.3% | Reduced |
| ABN AMRO Bank N.V. | 6,019 | $445.3K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 6,000 | $445.2K | 0.04% | +6,000 | New |
| Ensign Peak Advisors, Inc | 5,977 | $443.5K | 0.00% | −3,500−36.9% | Reduced |
| Northwest & Ethical Investments L.P. | 5,940 | $440.7K | 0.01% | 00.0% | Unchanged |
| Kornitzer Capital Management Inc | 5,800 | $430.4K | 0.01% | −44,440−88.5% | Reduced |
| Commonwealth Equity Services, LLC | 5,796 | $430.0K | 0.00% | −1,627−21.9% | Reduced |
| Prelude Capital Management, LLC | 5,735 | $425.5K | 0.03% | +5,735 | New |
| Commerce Bank | 5,664 | $420.3K | 0.00% | +3,640+179.8% | Added |
| KLP Kapitalforvaltning AS | 5,600 | $415.5K | 0.00% | −700−11.1% | Reduced |
| Numerai GP LLC | 5,543 | $411.3K | 0.06% | +5,543 | New |
| Truist Financial Corp | 5,299 | $393.2K | 0.00% | +2,532+91.5% | Added |
| Manufacturers Life Insurance Company, The | 5,247 | $389.3K | 0.00% | −515−8.9% | Reduced |
| Maryland State Retirement & Pension System | 5,238 | $388.7K | 0.01% | −4,799−47.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 5,153 | $382.4K | 0.00% | +5,153 | New |
| Bridgefront Capital, LLC | 5,010 | $371.7K | 0.11% | +2,901+137.6% | Added |
| Cinctive Capital Management LP | 5,000 | $371.0K | 0.02% | +5,000 | New |