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 |
|---|---|---|---|---|---|
| Lisanti Capital Growth, LLC | 11,480 | $2.34M | 0.55% | +4,925+75.1% | Added |
| Treasurer of the State of North Carolina | 12,750 | $2.59M | 0.01% | +120+1.0% | Added |
| Royal Bank of Canada | 12,885 | $2.62M | 0.00% | −18,177−58.5% | Reduced |
| Millennium Management LLC | 12,959 | $2.64M | 0.00% | −306,744−95.9% | Reduced |
| Sirios Capital Management L P | 13,122 | $2.67M | 0.54% | +11,662+798.8% | Added |
| Assenagon Asset Management S.A. | 13,149 | $2.67M | 0.01% | −23,820−64.4% | Reduced |
| PEAK6 Investments LLC | 13,577 | $2.76M | 0.12% | +771+6.0% | Added |
| Janus Henderson Group PLC | 13,602 | $2.77M | 0.00% | −21−0.2% | Reduced |
| Evolutionary Tree Capital Management, LLC | 14,439 | $2.94M | 3.24% | −2,230−13.4% | Reduced |
| LMR Partners LLP | 14,579 | $2.97M | 0.07% | +12,341+551.4% | Added |
| Nippon Life Global Investors Americas, Inc. | 14,600 | $2.97M | 0.17% | 00.0% | Unchanged |
| Miura Global Management, LLC | 15,000 | $3.05M | 1.71% | 00.0% | Unchanged |
| Archon Capital Management LLC | 15,000 | $3.05M | 1.26% | +15,000 | New |
| Russell Investments Group, Ltd. | 16,056 | $3.27M | 0.01% | +11,567+257.7% | Added |
| Gilliland Jeter Wealth Management LLC | 16,563 | $3.37M | 1.39% | +16,563 | New |
| Putnam Investments LLC | 16,811 | $3.42M | 0.00% | +4,373+35.2% | Added |
| Congress Asset Management Co | 17,192 | $3.50M | 0.03% | +17,192 | New |
| State of New Jersey Common Pension Fund D | 17,791 | $3.62M | 0.01% | +1,087+6.5% | Added |
| Velan Capital Investment Management LP | 18,000 | $3.66M | 2.59% | +2,700+17.6% | Added |
| Rhenman & Partners Asset Management AB | 18,000 | $3.66M | 0.37% | +11,000+157.1% | Added |
| Advisor Group Holdings, Inc. | 18,128 | $3.69M | 0.01% | +30.0% | Added |
| Algert Global LLC | 18,320 | $3.73M | 0.15% | −16,395−47.2% | Reduced |
| Optimas Capital Ltd | 18,979 | $3.86M | 3.64% | +18,979 | New |
| Allianz Asset Management GmbH | 19,355 | $3.94M | 0.01% | +1,692+9.6% | Added |
| Whetstone Capital Advisors, LLC | 20,509 | $4.17M | 2.10% | +20,509 | New |
| HSBC Holdings PLC | 21,185 | $4.31M | 0.00% | +2,905+15.9% | Added |
| New York State Common Retirement Fund | 21,900 | $4.46M | 0.01% | −4,927−18.4% | Reduced |
| Dimensional Fund Advisors LP | 22,683 | $4.61M | 0.00% | −13,072−36.6% | Reduced |
| Baird Financial Group, Inc. | 24,689 | $5.02M | 0.01% | +8,137+49.2% | Added |
| Thornburg Investment Management Inc | 24,861 | $5.06M | 0.07% | −167−0.7% | Reduced |
| Squarepoint Ops LLC | 26,539 | $5.40M | 0.02% | −29,573−52.7% | Reduced |
| Envestnet Asset Management Inc | 26,890 | $5.47M | 0.00% | −3,172−10.6% | Reduced |
| Wells Fargo & Company | 27,029 | $5.50M | 0.00% | −2,849−9.5% | Reduced |
| Axiom Investors LLC | 27,201 | $5.53M | 0.05% | +8,429+44.9% | Added |
| Bullseye Asset Management LLC | 27,199 | $5.53M | 2.65% | +14,812+119.6% | Added |
| Sivik Global Healthcare LLC | 27,500 | $5.59M | 2.34% | +27,500 | New |
| Legal & General Group Plc | 28,739 | $5.85M | 0.00% | −10,038−25.9% | Reduced |
| Osterweis Capital Management Inc | 28,977 | $5.89M | 0.37% | +6,706+30.1% | Added |
| California State Teachers Retirement System | 30,906 | $6.29M | 0.01% | −1,291−4.0% | Reduced |
| Oak Ridge Investments LLC | 31,299 | $6.37M | 0.73% | −832−2.6% | Reduced |
| Next Century Growth Investors LLC | 31,336 | $6.37M | 0.62% | −16,519−34.5% | Reduced |
| Teachers Retirement System of the State of Kentucky | 31,876 | $6.49M | 0.06% | +26,964+548.9% | Added |
| Public Employees Retirement System of Ohio | 32,590 | $6.63M | 0.03% | +3,181+10.8% | Added |
| State Board of Administration of Florida Retirement System | 32,990 | $6.71M | 0.01% | +276+0.8% | Added |
| UBS Group AG | 33,173 | $6.75M | 0.00% | +2,366+7.7% | Added |
| Kopp Family Office, LLC | 33,225 | $6.76M | 3.95% | +15,113+83.4% | Added |
| Lazard Asset Management LLC | 34,157 | $6.95M | 0.01% | −3,418−9.1% | Reduced |
| Goldman Sachs Group Inc | 35,020 | $7.12M | 0.00% | −17,616−33.5% | Reduced |
| Armistice Capital, LLC | 36,522 | $7.43M | 0.20% | +32,899+908.1% | Added |
| Invesco Ltd. | 37,169 | $7.56M | 0.00% | −150,615−80.2% | Reduced |
| Rhumbline Advisers | 38,781 | $7.89M | 0.01% | −469−1.2% | Reduced |
| Polar Asset Management Partners Inc. | 39,800 | $8.10M | 0.22% | +39,800 | New |
| California Public Employees Retirement System | 40,337 | $8.21M | 0.01% | −12,240−23.3% | Reduced |
| Man Group plc | 40,470 | $8.23M | 0.02% | – | – |
| Capital Fund Management S.A. | 41,516 | $8.45M | 0.11% | −8,791−17.5% | Reduced |
| Royce & Associates LP | 42,269 | $8.60M | 0.08% | +28,781+213.4% | Added |
| Standard Life Aberdeen plc | 45,961 | $9.35M | 0.02% | +45,961 | New |
| Neuberger Berman Group LLC | 50,857 | $10.3M | 0.01% | +3,128+6.6% | Added |
| Stanley-Laman Group, Ltd. | 51,051 | $10.4M | 1.59% | +51,051 | New |
| Amundi | 57,739 | $11.0M | 0.00% | −65,491−53.1% | Reduced |
| Swiss National Bank | 57,800 | $11.8M | 0.01% | −6,400−10.0% | Reduced |
| Integral Health Asset Management, LLC | 60,000 | $12.2M | 1.76% | −45,000−42.9% | Reduced |
| Nomura Asset Management Co Ltd | 60,187 | $12.2M | 0.05% | +60,187 | New |
| State of Wisconsin Investment Board | 62,458 | $12.7M | 0.04% | +18,893+43.4% | Added |
| Rheos Capital Works Inc. | 63,100 | $12.8M | 0.71% | 00.0% | Unchanged |
| AQR Capital Management LLC | 63,443 | $12.9M | 0.02% | +49,096+342.2% | Added |
| Mairs & Power Inc | 64,609 | $13.1M | 0.14% | +2,098+3.4% | Added |
| Aquatic Capital Management LLC | 65,500 | $13.3M | 0.34% | +62,000+1,771.4% | Added |
| Novo Holdings A/S | 65,524 | $13.3M | 0.89% | +5,524+9.2% | Added |
| Jane Street Group, LLC | 66,025 | $13.4M | 0.02% | +38,347+138.5% | Added |
| Bank of America Corp | 69,254 | $14.1M | 0.00% | −18,428−21.0% | Reduced |
| Canada Pension Plan Investment Board | 70,000 | $14.2M | 0.02% | +29,800+74.1% | Added |
| Comerica Bank | 70,576 | $14.4M | 0.07% | +600+0.9% | Added |
| Ensign Peak Advisors, Inc | 70,716 | $14.4M | 0.03% | +19,265+37.4% | Added |
| Tudor Investment Corp Et Al | 71,600 | $14.6M | 0.20% | +62,907+723.7% | Added |
| Kornitzer Capital Management Inc | 72,150 | $14.7M | 0.29% | 00.0% | Unchanged |
| Barclays PLC | 74,191 | $15.1M | 0.01% | −5,745−7.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 78,470 | $16.0M | 0.07% | +65,125+488.0% | Added |
| SEI Investments Co | 85,365 | $17.4M | 0.03% | +4,597+5.7% | Added |
| Alyeska Investment Group, L.P. | 87,687 | $17.8M | 0.12% | +87,687 | New |
| First Light Asset Management, LLC | 88,523 | $18.0M | 1.45% | +88,523 | New |
| ExodusPoint Capital Management, LP | 88,764 | $18.1M | 0.22% | +62,975+244.2% | Added |
| Nuveen Asset Management, LLC | 98,493 | $20.0M | 0.01% | −28,441−22.4% | Reduced |
| Rock Springs Capital Management LP | 99,000 | $20.1M | 0.50% | +54,500+122.5% | Added |
| Balyasny Asset Management LLC | 100,827 | $20.5M | 0.06% | +83,704+488.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 101,600 | $20.7M | 0.37% | +101,600 | New |
| UBS Asset Management Americas Inc | 102,956 | $20.9M | 0.01% | −334−0.3% | Reduced |
| Parkman Healthcare Partners LLC | 103,746 | $21.1M | 2.99% | +76,823+285.3% | Added |
| Schonfeld Strategic Advisors LLC | 107,342 | $21.8M | 0.18% | +62,142+137.5% | Added |
| Thrivent Financial for Lutherans | 108,922 | $22.2M | 0.05% | +48,626+80.6% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 109,960 | $22.4M | 0.05% | +37,390+51.5% | Added |
| Degroof Petercam Asset Management | 110,000 | $22.4M | 0.29% | +110,000 | New |
| Eagle Health Investments LP | 113,503 | $23.1M | 4.69% | +20,260+21.7% | Added |
| Renaissance Technologies LLC | 113,600 | $23.1M | 0.04% | −201,800−64.0% | Reduced |
| Atika Capital Management LLC | 121,600 | $24.7M | 3.52% | −18,565−13.2% | Reduced |
| Eventide Asset Management, LLC | 125,090 | $25.4M | 0.42% | 00.0% | Unchanged |
| Ophir Asset Management Pty Ltd | 125,788 | $25.6M | 5.08% | +125,788 | New |
| Summit Partners Public Asset Management, LLC | 141,777 | $28.8M | 1.57% | −226,749−61.5% | Reduced |
| Victory Capital Management Inc | 142,821 | $29.1M | 0.03% | −22,350−13.5% | Reduced |
| Iron Triangle Partners LP | 150,000 | $30.5M | 3.95% | +150,000 | New |