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 2023
Institutional positions in Inspire Medical Systems, Inc. as of Dec 31, 2023. 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
- −17 vs. Q3 2023
- Shares held
- 31.0M
- +2.67M (+9.4%) vs. Q3 2023
- Total value
- $6.31B
- +$659.1M (+11.7%) vs. Q3 2023
- New holders
- 63
- 120 more added
- Sold out
- 80
- 121 more reduced
5 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 3,257,544 | $662.7M | 0.05% | +786,080+31.8% | Added |
| Vanguard Group Inc | 2,931,469 | $596.3M | 0.01% | −80,927−2.7% | Reduced |
| BlackRock Inc. | 1,800,207 | $366.2M | 0.01% | −95,178−5.0% | Reduced |
| Wellington Management Group LLP | 1,430,266 | $291.0M | 0.05% | +453,294+46.4% | Added |
| Baillie Gifford & Co | 1,229,879 | $250.2M | 0.20% | +1,212,175+6,846.9% | Added |
| Wasatch Advisors Inc | 1,097,345 | $223.2M | 1.23% | +119,738+12.2% | Added |
| Farallon Capital Management, L.L.C. | 855,096 | $174.0M | 1.09% | +429,000+100.7% | Added |
| William Blair Investment Management, LLC | 806,947 | $164.2M | 0.48% | +112,802+16.3% | Added |
| Frontier Capital Management Co LLC | 742,046 | $151.0M | 1.52% | +380,362+105.2% | Added |
| Champlain Investment Partners, LLC | 648,595 | $131.9M | 0.78% | +179,050+38.1% | Added |
| JPMorgan Chase & Co | 631,881 | $128.5M | 0.01% | +532,353+534.9% | Added |
| Westfield Capital Management Co LP | 545,619 | $111.0M | 0.65% | −186,781−25.5% | Reduced |
| Macquarie Group Ltd | 538,575 | $109.6M | 0.13% | −65,031−10.8% | Reduced |
| State Street Corp | 531,193 | $108.1M | 0.01% | +6,689+1.3% | Added |
| Franklin Resources Inc | 514,012 | $104.6M | 0.05% | −275,523−34.9% | Reduced |
| Ameriprise Financial Inc | 491,270 | $99.9M | 0.03% | +157,779+47.3% | Added |
| Point72 Asset Management, L.P. | 473,195 | $96.3M | 0.29% | −410,167−46.4% | Reduced |
| Federated Hermes, Inc. | 453,268 | $92.2M | 0.23% | −43,132−8.7% | Reduced |
| Geode Capital Management, LLC | 444,814 | $90.5M | 0.01% | +20,514+4.8% | Added |
| Fred Alger Management, LLC | 405,907 | $82.6M | 0.45% | +445+0.1% | Added |
| Bank of New York Mellon Corp | 398,480 | $81.1M | 0.02% | +24,686+6.6% | Added |
| Credit Suisse AG | 356,059 | $72.4M | 0.07% | +7,759+2.2% | Added |
| Eversept Partners, LP | 351,116 | $71.4M | 7.00% | +158,098+81.9% | Added |
| Jennison Associates LLC | 304,886 | $62.0M | 0.05% | +264,139+648.2% | Added |
| Price T Rowe Associates Inc | 302,873 | $61.6M | 0.01% | +42,560+16.3% | Added |
| Slate Path Capital LP | 294,000 | $59.8M | 1.33% | +294,000 | New |
| Charles Schwab Investment Management Inc | 263,938 | $53.7M | 0.01% | +7,716+3.0% | Added |
| Gilder Gagnon Howe & Co LLC | 255,960 | $52.1M | 0.71% | −207,134−44.7% | Reduced |
| Marshall Wace, LLP | 247,641 | $50.4M | 0.10% | +236,746+2,173.0% | Added |
| Norges Bank | 241,440 | $49.1M | 0.01% | −3,509−1.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 219,835 | $44.7M | 0.07% | −11,860−5.1% | Reduced |
| Bellevue Group AG | 215,600 | $43.9M | 0.67% | +145,232+206.4% | Added |
| Bamco Inc | 211,000 | $42.9M | 0.11% | −33,736−13.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 209,916 | $42.7M | 0.09% | +106,980+103.9% | Added |
| Driehaus Capital Management LLC | 201,950 | $41.1M | 0.50% | +42,817+26.9% | Added |
| Keybank National Association | 201,337 | $41.0M | 0.18% | +40,694+25.3% | Added |
| D. E. Shaw & Co., Inc. | 184,948 | $37.6M | 0.05% | +20,246+12.3% | Added |
| Braidwell LP | 184,658 | $37.6M | 1.38% | +84,358+84.1% | Added |
| Intrinsic Edge Capital Management LLC | 182,846 | $37.2M | 3.97% | +126,475+224.4% | Added |
| Morgan Stanley | 173,563 | $35.3M | 0.00% | +48,816+39.1% | Added |
| Voya Investment Management LLC | 162,330 | $33.0M | 0.03% | −91,565−36.1% | Reduced |
| Hood River Capital Management LLC | 156,441 | $31.8M | 0.88% | +17,328+12.5% | Added |
| Northern Trust Corp | 155,223 | $31.6M | 0.01% | +5,948+4.0% | Added |
| Iron Triangle Partners LP | 150,000 | $30.5M | 3.95% | +150,000 | New |
| Victory Capital Management Inc | 142,821 | $29.1M | 0.03% | −22,350−13.5% | Reduced |
| Summit Partners Public Asset Management, LLC | 141,777 | $28.8M | 1.57% | −226,749−61.5% | Reduced |
| Ophir Asset Management Pty Ltd | 125,788 | $25.6M | 5.08% | +125,788 | New |
| Eventide Asset Management, LLC | 125,090 | $25.4M | 0.42% | 00.0% | Unchanged |
| Atika Capital Management LLC | 121,600 | $24.7M | 3.52% | −18,565−13.2% | Reduced |
| Renaissance Technologies LLC | 113,600 | $23.1M | 0.04% | −201,800−64.0% | Reduced |
| Eagle Health Investments LP | 113,503 | $23.1M | 4.69% | +20,260+21.7% | Added |
| Degroof Petercam Asset Management | 110,000 | $22.4M | 0.29% | +110,000 | New |
| Mitsubishi UFJ Trust & Banking Corp | 109,960 | $22.4M | 0.05% | +37,390+51.5% | Added |
| Thrivent Financial for Lutherans | 108,922 | $22.2M | 0.05% | +48,626+80.6% | Added |
| Schonfeld Strategic Advisors LLC | 107,342 | $21.8M | 0.18% | +62,142+137.5% | Added |
| Parkman Healthcare Partners LLC | 103,746 | $21.1M | 2.99% | +76,823+285.3% | Added |
| UBS Asset Management Americas Inc | 102,956 | $20.9M | 0.01% | −334−0.3% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 101,600 | $20.7M | 0.37% | +101,600 | New |
| Balyasny Asset Management LLC | 100,827 | $20.5M | 0.06% | +83,704+488.8% | Added |
| Rock Springs Capital Management LP | 99,000 | $20.1M | 0.50% | +54,500+122.5% | Added |
| Nuveen Asset Management, LLC | 98,493 | $20.0M | 0.01% | −28,441−22.4% | Reduced |
| ExodusPoint Capital Management, LP | 88,764 | $18.1M | 0.22% | +62,975+244.2% | Added |
| First Light Asset Management, LLC | 88,523 | $18.0M | 1.45% | +88,523 | New |
| Alyeska Investment Group, L.P. | 87,687 | $17.8M | 0.12% | +87,687 | New |
| SEI Investments Co | 85,365 | $17.4M | 0.03% | +4,597+5.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 78,470 | $16.0M | 0.07% | +65,125+488.0% | Added |
| Barclays PLC | 74,191 | $15.1M | 0.01% | −5,745−7.2% | Reduced |
| Kornitzer Capital Management Inc | 72,150 | $14.7M | 0.29% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 71,600 | $14.6M | 0.20% | +62,907+723.7% | Added |
| Ensign Peak Advisors, Inc | 70,716 | $14.4M | 0.03% | +19,265+37.4% | Added |
| Comerica Bank | 70,576 | $14.4M | 0.07% | +600+0.9% | Added |
| Canada Pension Plan Investment Board | 70,000 | $14.2M | 0.02% | +29,800+74.1% | Added |
| Bank of America Corp | 69,254 | $14.1M | 0.00% | −18,428−21.0% | Reduced |
| Jane Street Group, LLC | 66,025 | $13.4M | 0.02% | +38,347+138.5% | Added |
| Novo Holdings A/S | 65,524 | $13.3M | 0.89% | +5,524+9.2% | Added |
| Aquatic Capital Management LLC | 65,500 | $13.3M | 0.34% | +62,000+1,771.4% | Added |
| Mairs & Power Inc | 64,609 | $13.1M | 0.14% | +2,098+3.4% | Added |
| AQR Capital Management LLC | 63,443 | $12.9M | 0.02% | +49,096+342.2% | Added |
| Rheos Capital Works Inc. | 63,100 | $12.8M | 0.71% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 62,458 | $12.7M | 0.04% | +18,893+43.4% | Added |
| Nomura Asset Management Co Ltd | 60,187 | $12.2M | 0.05% | +60,187 | New |
| Integral Health Asset Management, LLC | 60,000 | $12.2M | 1.76% | −45,000−42.9% | Reduced |
| Swiss National Bank | 57,800 | $11.8M | 0.01% | −6,400−10.0% | Reduced |
| Amundi | 57,739 | $11.0M | 0.00% | −65,491−53.1% | Reduced |
| Stanley-Laman Group, Ltd. | 51,051 | $10.4M | 1.59% | +51,051 | New |
| Neuberger Berman Group LLC | 50,857 | $10.3M | 0.01% | +3,128+6.6% | Added |
| Standard Life Aberdeen plc | 45,961 | $9.35M | 0.02% | +45,961 | New |
| Royce & Associates LP | 42,269 | $8.60M | 0.08% | +28,781+213.4% | Added |
| Capital Fund Management S.A. | 41,516 | $8.45M | 0.11% | −8,791−17.5% | Reduced |
| Man Group plc | 40,470 | $8.23M | 0.02% | – | – |
| California Public Employees Retirement System | 40,337 | $8.21M | 0.01% | −12,240−23.3% | Reduced |
| Polar Asset Management Partners Inc. | 39,800 | $8.10M | 0.22% | +39,800 | New |
| Rhumbline Advisers | 38,781 | $7.89M | 0.01% | −469−1.2% | Reduced |
| Invesco Ltd. | 37,169 | $7.56M | 0.00% | −150,615−80.2% | Reduced |
| Armistice Capital, LLC | 36,522 | $7.43M | 0.20% | +32,899+908.1% | Added |
| Goldman Sachs Group Inc | 35,020 | $7.12M | 0.00% | −17,616−33.5% | Reduced |
| Lazard Asset Management LLC | 34,157 | $6.95M | 0.01% | −3,418−9.1% | Reduced |
| Kopp Family Office, LLC | 33,225 | $6.76M | 3.95% | +15,113+83.4% | Added |
| UBS Group AG | 33,173 | $6.75M | 0.00% | +2,366+7.7% | Added |
| State Board of Administration of Florida Retirement System | 32,990 | $6.71M | 0.01% | +276+0.8% | Added |