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, Q1 2025
Institutional positions in Inspire Medical Systems, Inc. as of Mar 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
- 363
- +8 vs. Q4 2024
- Shares held
- 34.3M
- +1.02M (+3.1%) vs. Q4 2024
- Total value
- $5.46B
- −$717.1M (−11.6%) vs. Q4 2024
- New holders
- 58
- 141 more added
- Sold out
- 50
- 113 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Catalio Capital Management, LP | 85,877 | $13.7M | 3.39% | +85,877 | New |
| Legal & General Group Plc | 93,979 | $15.0M | 0.00% | −1,499−1.6% | Reduced |
| Public Sector Pension Investment Board | 94,060 | $15.0M | 0.06% | +19,401+26.0% | Added |
| Bellevue Group AG | 99,027 | $15.8M | 0.35% | −49,451−33.3% | Reduced |
| Rock Springs Capital Management LP | 99,250 | $15.8M | 0.90% | −30,750−23.7% | Reduced |
| Neuberger Berman Group LLC | 100,154 | $16.0M | 0.01% | +15,929+18.9% | Added |
| Granite Investment Partners, LLC | 104,116 | $16.6M | 0.84% | +90,644+672.8% | Added |
| Bank of America Corp | 106,414 | $16.9M | 0.00% | +60,018+129.4% | Added |
| Jacobs Levy Equity Management, Inc | 110,594 | $17.6M | 0.07% | −99,566−47.4% | Reduced |
| Standard Life Aberdeen plc | 121,361 | $19.3M | 0.04% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 122,060 | $19.4M | 0.01% | +17,304+16.5% | Added |
| Man Group plc | 129,842 | $20.7M | 0.06% | −46,084−26.2% | Reduced |
| Riverbridge Partners LLC | 132,391 | $21.1M | 0.34% | −9,706−6.8% | Reduced |
| Los Angeles Capital Management LLC | 136,174 | $21.7M | 0.10% | +45,632+50.4% | Added |
| Nuveen, LLC | 136,622 | $21.8M | 0.01% | +136,622 | New |
| Thrivent Financial for Lutherans | 140,932 | $22.4M | 0.05% | +11,812+9.1% | Added |
| Principal Financial Group Inc | 147,768 | $23.5M | 0.01% | +1,458+1.0% | Added |
| Atika Capital Management LLC | 160,600 | $25.6M | 3.93% | +3,000+1.9% | Added |
| Norges Bank | 161,961 | $25.8M | 0.00% | +104,344+181.1% | Added |
| Voya Investment Management LLC | 164,936 | $26.3M | 0.03% | +8,361+5.3% | Added |
| Amundi | 182,253 | $27.2M | 0.01% | −21,100−10.4% | Reduced |
| SEI Investments Co | 171,751 | $27.4M | 0.04% | +8,277+5.1% | Added |
| New York State Common Retirement Fund | 182,750 | $29.1M | 0.04% | +35,071+23.7% | Added |
| Gilder Gagnon Howe & Co LLC | 183,653 | $29.3M | 0.38% | −4,040−2.2% | Reduced |
| Eversept Partners, LP | 186,425 | $29.7M | 3.36% | −107,877−36.7% | Reduced |
| Renaissance Technologies LLC | 190,700 | $30.4M | 0.05% | +54,000+39.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 196,184 | $31.2M | 0.14% | +18,596+10.5% | Added |
| Keybank National Association | 201,070 | $32.0M | 0.13% | +311+0.2% | Added |
| Wellington Management Group LLP | 207,535 | $33.1M | 0.01% | −36,853−15.1% | Reduced |
| Franklin Resources Inc | 217,674 | $34.7M | 0.01% | −3,886−1.8% | Reduced |
| Federated Hermes, Inc. | 228,330 | $36.4M | 0.08% | 00.0% | Unchanged |
| AQR Capital Management LLC | 242,203 | $37.1M | 0.04% | −196,641−44.8% | Reduced |
| Raymond James Financial Inc | 236,496 | $37.7M | 0.01% | −20,296−7.9% | Reduced |
| Northern Trust Corp | 260,407 | $41.5M | 0.01% | +16,158+6.6% | Added |
| Dimensional Fund Advisors LP | 277,681 | $44.2M | 0.01% | +45,348+19.5% | Added |
| Charles Schwab Investment Management Inc | 287,892 | $45.9M | 0.01% | −8,315−2.8% | Reduced |
| Braidwell LP | 302,410 | $48.2M | 1.69% | +9,000+3.1% | Added |
| Allspring Global Investments Holdings, LLC | 306,740 | $48.5M | 0.08% | −19,559−6.0% | Reduced |
| Eventide Asset Management, LLC | 306,301 | $48.8M | 0.97% | +181,211+144.9% | Added |
| Congress Asset Management Co | 307,555 | $49.0M | 0.37% | +299,949+3,943.6% | Added |
| Brown Capital Management LLC | 352,340 | $56.1M | 1.69% | +47,560+15.6% | Added |
| Artisan Partners Limited Partnership | 373,394 | $59.5M | 0.10% | −76,816−17.1% | Reduced |
| Bank of New York Mellon Corp | 380,260 | $60.6M | 0.01% | −200,611−34.5% | Reduced |
| JPMorgan Chase & Co | 399,713 | $63.7M | 0.00% | −119,836−23.1% | Reduced |
| Bamco Inc | 422,693 | $67.3M | 0.20% | +74,893+21.5% | Added |
| Frontier Capital Management Co LLC | 433,487 | $69.0M | 0.76% | +14,633+3.5% | Added |
| Champlain Investment Partners, LLC | 435,762 | $69.4M | 0.50% | −8,647−1.9% | Reduced |
| Morgan Stanley | 439,118 | $69.9M | 0.01% | −145,510−24.9% | Reduced |
| TimesSquare Capital Management, LLC | 476,217 | $75.9M | 1.22% | +42,411+9.8% | Added |
| UBS Group AG | 485,179 | $77.3M | 0.02% | +121,624+33.5% | Added |
| Geode Capital Management, LLC | 511,209 | $81.5M | 0.01% | +24,868+5.1% | Added |
| Macquarie Group Ltd | 558,227 | $88.9M | 0.11% | +20,633+3.8% | Added |
| Janus Henderson Group PLC | 642,760 | $101.1M | 0.06% | +75,448+13.3% | Added |
| William Blair Investment Management, LLC | 692,918 | $110.4M | 0.31% | −209,693−23.2% | Reduced |
| Invesco Ltd. | 858,572 | $136.8M | 0.03% | +65,492+8.3% | Added |
| State Street Corp | 1,008,059 | $160.6M | 0.01% | −54,087−5.1% | Reduced |
| UBS Asset Management Americas Inc | 1,112,925 | $177.3M | 0.05% | +759,090+214.5% | Added |
| Baillie Gifford & Co | 1,159,754 | $184.7M | 0.16% | −96,251−7.7% | Reduced |
| Dragoneer Investment Group, LLC | 1,297,603 | $206.7M | 4.35% | +426,493+49.0% | Added |
| Wasatch Advisors Inc | 1,524,107 | $242.8M | 1.35% | +202,342+15.3% | Added |
| FMR LLC | 2,541,360 | $404.8M | 0.03% | +21,826+0.9% | Added |
| Vanguard Group Inc | 3,225,645 | $513.8M | 0.01% | −44,712−1.4% | Reduced |
| BlackRock, Inc. | 4,029,559 | $641.8M | 0.01% | −171,774−4.1% | Reduced |
| Proequities, Inc. | 0 | $0 | 0.00% | −338−100.0% | Sold out |
| Fuller & Thaler Asset Management, Inc. | 0 | $0 | 0.00% | −232,388−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −35,294−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −21,095−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −13,152−100.0% | Sold out |
| Evolutionary Tree Capital Management, LLC | 0 | $0 | 0.00% | −9,259−100.0% | Sold out |
| Sit Investment Associates Inc | 0 | $0 | 0.00% | −6,830−100.0% | Sold out |
| Lecap Asset Management Ltd | 0 | $0 | 0.00% | −5,254−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −5,100−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −4,267−100.0% | Sold out |
| Twin Capital Management Inc | 0 | $0 | 0.00% | −3,264−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −3,039−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −2,796−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −2,645−100.0% | Sold out |
| Armistice Capital, LLC | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −2,488−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −2,366−100.0% | Sold out |
| TriaGen Wealth Management LLC | 0 | $0 | 0.00% | −2,137−100.0% | Sold out |
| Beacon Investment Advisory Services, Inc. | 0 | $0 | 0.00% | −2,062−100.0% | Sold out |
| Brown Advisory Inc | 0 | $0 | 0.00% | −2,011−100.0% | Sold out |
| Synovus Financial Corp | 0 | $0 | 0.00% | −1,906−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −1,895−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −1,686−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −1,643−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −1,569−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −1,543−100.0% | Sold out |
| Berger Financial Group, Inc | 0 | $0 | 0.00% | −1,506−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −1,478−100.0% | Sold out |
| American Trust | 0 | $0 | 0.00% | −1,393−100.0% | Sold out |
| Evergreen Capital Management LLC | 0 | $0 | 0.00% | −1,349−100.0% | Sold out |
| Traynor Capital Management, Inc. | 0 | $0 | 0.00% | −1,250−100.0% | Sold out |
| Shelton Capital Management | 0 | $0 | 0.00% | −1,201−100.0% | Sold out |
| Sym Financial Corp | 0 | $0 | 0.00% | −1,142−100.0% | Sold out |
| Accredited Investor Services, LLC | 0 | $0 | 0.00% | −1,118−100.0% | Sold out |
| Gateway Wealth Partners, LLC | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| Cornerstone Investment Partners, LLC | 0 | $0 | 0.00% | −1,079−100.0% | Sold out |
| BI Asset Management Fondsmaeglerselskab A/S | 0 | $0 | 0.00% | −897−100.0% | Sold out |