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 $1.70B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Inspire Medical Systems, Inc. as of Jun 30, 2026. 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
- 275
- −22 vs. Q1 2026
- Shares held
- 38.1M
- +3.29M (+9.4%) vs. Q1 2026
- Total value
- $1.70B
- −$98.4M (−5.5%) vs. Q1 2026
- New holders
- 68
- 98 more added
- Sold out
- 90
- 76 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $1.70B |
| Q1 2026 | 301 | $1.80B |
| Q4 2025 | 343 | $3.19B |
| Q3 2025 | 325 | $2.32B |
| Q2 2025 | 356 | $4.39B |
| Q1 2025 | 363 | $5.51B |
| Q4 2024 | 357 | $6.20B |
| Q3 2024 | 347 | $7.19B |
| Q2 2024 | 325 | $4.35B |
| Q1 2024 | 327 | $7.03B |
| Q4 2023 | 343 | $6.47B |
| Q3 2023 | 365 | $5.67B |
| Q2 2023 | 407 | $9.26B |
| Q1 2023 | 374 | $7.05B |
| Q4 2022 | 340 | $7.22B |
| Q3 2022 | 302 | $5.01B |
| Q2 2022 | 287 | $5.01B |
| Q1 2022 | 299 | $6.92B |
| Q4 2021 | 289 | $5.96B |
| Q3 2021 | 254 | $5.92B |
| Q2 2021 | 248 | $4.83B |
| Q1 2021 | 251 | $5.21B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,737,519 | $211.3M | 0.00% | +1,187,965+33.5% | Added |
| Wellington Management Group LLP | 2,382,660 | $106.3M | 0.02% | −153,294−6.0% | Reduced |
| Vanguard Portfolio Management LLC | 2,088,961 | $93.2M | 0.00% | +451,788+27.6% | Added |
| Soleus Capital Management, L.P. | 1,931,436 | $86.2M | 2.97% | +1,355,137+235.1% | Added |
| AQR Capital Management LLC | 1,856,800 | $80.9M | 0.03% | +1,548,138+501.6% | Added |
| Assenagon Asset Management S.A. | 1,728,790 | $77.1M | 0.05% | +1,208,616+232.3% | Added |
| UBS Group AG | 1,645,511 | $73.4M | 0.01% | +1,006,583+157.5% | Added |
| D. E. Shaw & Co., Inc. | 1,470,462 | $65.6M | 0.04% | +281,925+23.7% | Added |
| Nomura Holdings Inc | 1,369,410 | $61.1M | 0.26% | +1,369,410 | New |
| Deerfield Management Company, L.P. (Series C) | 1,296,862 | $57.9M | 0.60% | −1,406,376−52.0% | Reduced |
| Vanguard Capital Management LLC | 1,270,928 | $56.7M | 0.00% | +4,190+0.3% | Added |
| State Street Corp | 1,206,494 | $53.8M | 0.00% | +250,483+26.2% | Added |
| Morgan Stanley | 791,222 | $35.3M | 0.00% | −659,412−45.5% | Reduced |
| Artisan Partners Limited Partnership | 732,323 | $32.7M | 0.05% | −48,252−6.2% | Reduced |
| Geode Capital Management, LLC | 700,836 | $31.3M | 0.00% | +190,602+37.4% | Added |
| Braidwell LP | 677,570 | $30.2M | 1.12% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 645,858 | $28.8M | 0.00% | −18,145−2.7% | Reduced |
| UBS Asset Management Americas Inc | 546,020 | $24.4M | 0.00% | +97,233+21.7% | Added |
| Nantahala Capital Management, LLC | 538,948 | $24.0M | 0.73% | +538,948 | New |
| Citadel Advisors LLC | 506,334 | $22.6M | 0.01% | +112,258+28.5% | Added |
| SG Americas Securities, LLC | 491,703 | $21.9M | 0.01% | +386,556+367.6% | Added |
| BNP Paribas Arbitrage, SA | 428,069 | $19.1M | 0.01% | +108,311+33.9% | Added |
| Renaissance Technologies LLC | 426,000 | $19.0M | 0.03% | −43,968−9.4% | Reduced |
| ADAR1 Capital Management, LLC | 374,617 | $16.7M | 0.79% | −30,580−7.5% | Reduced |
| Standard Life Aberdeen plc | 358,968 | $16.0M | 0.02% | −118,508−24.8% | Reduced |
| Northern Trust Corp | 334,039 | $14.9M | 0.00% | +137,006+69.5% | Added |
| Barclays PLC | 307,270 | $13.7M | 0.00% | +239,629+354.3% | Added |
| Federated Hermes, Inc. | 272,130 | $12.1M | 0.02% | +272,039+298,944.0% | Added |
| FMR LLC | 267,871 | $11.9M | 0.00% | +229,887+605.2% | Added |
| Bank of America Corp | 248,802 | $11.1M | 0.00% | +62,733+33.7% | Added |
| Walleye Capital LLC | 245,763 | $11.0M | 0.05% | −112,726−31.4% | Reduced |
| Rock Springs Capital Management LP | 244,000 | $10.9M | 0.53% | +112,200+85.1% | Added |
| Capital Fund Management S.A. | 219,873 | $9.81M | 0.07% | +110,858+101.7% | Added |
| Charles Schwab Investment Management Inc | 210,091 | $9.37M | 0.00% | +26,740+14.6% | Added |
| Norges Bank | 198,272 | $8.84M | 0.00% | +198,272 | New |
| Vanguard Fiduciary Trust Co | 190,563 | $8.50M | 0.00% | +22,863+13.6% | Added |
| Deutsche Bank AG | 176,200 | $7.86M | 0.00% | −336,975−65.7% | Reduced |
| Tudor Investment Corp Et Al | 169,095 | $7.54M | 0.03% | +1,877+1.1% | Added |
| Price T Rowe Associates Inc | 167,733 | $7.48M | 0.00% | −13,580−7.5% | Reduced |
| Canada Pension Plan Investment Board | 165,100 | $7.37M | 0.00% | +1,000+0.6% | Added |
| Bank of New York Mellon Corp | 148,627 | $6.63M | 0.00% | −137−0.1% | Reduced |
| Bank of Nova Scotia | 144,964 | $6.47M | 0.01% | +84,964+141.6% | Added |
| Quantinno Capital Management LP | 137,615 | $6.14M | 0.01% | +111,060+418.2% | Added |
| Edgestream Partners, L.P. | 133,766 | $5.97M | 0.18% | +51,498+62.6% | Added |
| Principal Financial Group Inc | 128,175 | $5.72M | 0.00% | +1,387+1.1% | Added |
| Alberta Investment Management Corp | 122,900 | $5.48M | 0.03% | +122,900 | New |
| Rheos Capital Works Inc. | 117,400 | $5.24M | 0.30% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 115,907 | $5.17M | 0.00% | −118,763−50.6% | Reduced |
| Invesco Ltd. | 110,285 | $4.92M | 0.00% | +6,312+6.1% | Added |
| Victory Capital Management Inc | 107,657 | $4.80M | 0.00% | +43,397+67.5% | Added |
| Integral Health Asset Management, LLC | 100,000 | $4.46M | 0.18% | +100,000 | New |
| Millennium Management LLC | 94,149 | $4.20M | 0.00% | −291,997−75.6% | Reduced |
| Public Sector Pension Investment Board | 90,077 | $4.02M | 0.01% | −3,009−3.2% | Reduced |
| Ameriprise Financial Inc | 87,518 | $3.90M | 0.00% | −55,933−39.0% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 87,185 | $3.89M | 0.06% | −18,972−17.9% | Reduced |
| Acadian Asset Management LLC | 81,263 | $3.62M | 0.00% | −128,223−61.2% | Reduced |
| Pacer Advisors, Inc. | 80,472 | $3.59M | 0.01% | +80,472 | New |
| Citigroup Inc | 77,780 | $3.47M | 0.00% | +46,174+146.1% | Added |
| New York State Common Retirement Fund | 72,413 | $3.23M | 0.00% | +1,528+2.2% | Added |
| Voleon Capital Management LP | 72,218 | $3.22M | 0.06% | +39,096+118.0% | Added |
| Nuveen, LLC | 70,046 | $3.12M | 0.00% | −15,123−17.8% | Reduced |
| Rhumbline Advisers | 64,202 | $2.86M | 0.00% | −3,705−5.5% | Reduced |
| Legal & General Group Plc | 61,236 | $2.73M | 0.00% | −347−0.6% | Reduced |
| Algert Global LLC | 60,517 | $2.70M | 0.03% | +7,657+14.5% | Added |
| CI Private Wealth, LLC | 57,535 | $2.57M | 0.00% | +52,275+993.8% | Added |
| Y-Intercept (Hong Kong) Ltd | 55,681 | $2.48M | 0.05% | −102,593−64.8% | Reduced |
| Susquehanna International Group, LLP | 53,198 | $2.37M | 0.00% | −157,375−74.7% | Reduced |
| Bullseye Asset Management LLC | 52,230 | $2.33M | 1.18% | +1,102+2.2% | Added |
| Swiss National Bank | 52,000 | $2.32M | 0.00% | −3,500−6.3% | Reduced |
| Empowered Funds, LLC | 50,657 | $2.26M | 0.01% | +15,781+45.2% | Added |
| LPL Financial LLC | 47,947 | $2.14M | 0.00% | +36,438+316.6% | Added |
| Brown Capital Management LLC | 43,951 | $1.96M | 0.39% | −40,417−47.9% | Reduced |
| JPMorgan Chase & Co | 41,988 | $1.94M | 0.00% | −11,627−21.7% | Reduced |
| Nordea Investment Management AB | 44,381 | $1.93M | 0.00% | +3,961+9.8% | Added |
| Brevan Howard Capital Management LP | 43,158 | $1.93M | 0.03% | +37,701+690.9% | Added |
| Alliancebernstein L.P. | 33,715 | $1.74M | 0.00% | +18,555+122.4% | Added |
| Winton Group Ltd | 37,412 | $1.67M | 0.05% | +33,212+790.8% | Added |
| Creative Planning | 37,373 | $1.67M | 0.00% | +26,069+230.6% | Added |
| Entropy Technologies, LP | 37,293 | $1.66M | 0.07% | +37,293 | New |
| Gotham Asset Management, LLC | 35,823 | $1.60M | 0.00% | −51,910−59.2% | Reduced |
| First Trust Advisors LP | 34,238 | $1.53M | 0.00% | −37,423−52.2% | Reduced |
| Jump Financial, LLC | 31,926 | $1.42M | 0.01% | +23,725+289.3% | Added |
| Mariner, LLC | 30,190 | $1.35M | 0.00% | +30,190 | New |
| Wells Fargo & Company | 29,771 | $1.33M | 0.00% | +24,461+460.7% | Added |
| Axq Capital, LP | 29,630 | $1.32M | 0.14% | −3,384−10.3% | Reduced |
| California State Teachers Retirement System | 29,526 | $1.32M | 0.00% | −4,947−14.4% | Reduced |
| Worldquant Millennium Advisors LLC | 28,359 | $1.27M | 0.00% | −46,880−62.3% | Reduced |
| Prudential Financial Inc | 27,720 | $1.24M | 0.00% | +4,005+16.9% | Added |
| Franklin Resources Inc | 27,693 | $1.24M | 0.00% | −15,534−35.9% | Reduced |
| Raymond James Financial Inc | 26,412 | $1.18M | 0.00% | +26,412 | New |
| Odyssean, LLC | 26,282 | $1.17M | 0.19% | +26,282 | New |
| Quantbot Technologies LP | 25,954 | $1.16M | 0.05% | +25,954 | New |
| ExodusPoint Capital Management, LP | 25,704 | $1.15M | 0.01% | +25,704 | New |
| New York State Teachers Retirement System | 25,559 | $1.14M | 0.00% | +1,960+8.3% | Added |
| Vanguard Asset Management, Ltd | 25,473 | $1.14M | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 24,944 | $1.11M | 0.00% | +18,967+317.3% | Added |
| Squarepoint Ops LLC | 24,259 | $1.08M | 0.00% | −42,555−63.7% | Reduced |
| Lazard Asset Management LLC | 21,840 | $974.3K | 0.00% | +2,902+15.3% | Added |
| Great West Life Assurance Co | 21,621 | $965.0K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 21,530 | $960.5K | 0.00% | +10,903+102.6% | Added |