Inspire Medical SystemsINSP
13F holders, Q4 2024 (December 31)357holders +10
47new positions
42sold out
7famous investors
$185.58avg. 13F price*
At the end of Q4 2024, 357 institutions reported holding Inspire Medical Systems Inc. (INSP) in their 13F filings, up 10 from Q3 2024. 47 opened new positions and 42 sold out. The largest holders were BlackRock, Inc. ($778.8M), Vanguard Group Inc. ($606.3M) and FMR LLC ($467.1M). 7 famous investors held it, including Ron Baron (0.2% of Baron Capital (BAMCO)'s portfolio), Cliff Asness (0.1% of AQR Capital Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Inspire Medical Systems Inc.
- CUSIP
- 457730109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 47 | $343.8M |
| Exits | 42 | $135.7M |
All 13F filers, Q3 2024 → Q4 2024: 4,053,797 shares bought and 4,002,010 shares sold, net +51,787 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 357 holders
| BlackRock, Inc. | 0.02% | Add +2.0% | 4,201,333 | $778.8M |
| Vanguard Group Inc. | 0.01% | Add +1.2% | 3,270,357 | $606.3M |
| FMR LLC | 0.03% | Reduce -14.5% | 2,519,534 | $467.1M |
| Wasatch Advisors LP | 1.21% | Reduce -0.1% | 1,321,765 | $245.0M |
| Baillie Gifford & Co. | 0.18% | Reduce -8.1% | 1,256,005 | $232.8M |
| State Street Corp. | 0.01% | Add +1.2% | 1,062,146 | $196.9M |
| William Blair Investment Management, LLC | 0.41% | Reduce -0.4% | 902,611 | $167.3M |
| Dragoneer Investment Group, LLC | 2.82% | New | 871,110 | $161.5M |
| Invesco Ltd. | 0.03% | Add +14.3% | 793,080 | $147.0M |
| Morgan Stanley | 0.01% | Add +60.9% | 584,628 | $108.4M |
| Bank of New York Mellon Corp | 0.02% | Reduce -24.8% | 580,871 | $107.7M |
| Janus Henderson Group PLC | 0.05% | Add +12.9% | 567,312 | $105.2M |
| Macquarie Group Ltd. | 0.12% | Reduce -7.7% | 537,594 | $99.7M |
| JPMorgan Chase & Co. | 0.01% | Reduce -30.0% | 519,549 | $96.3M |
| Geode Capital Management, LLC | 0.01% | Add +0.6% | 486,341 | $90.2M |
| Artisan Partners Limited Partnership | 0.13% | Reduce -17.5% | 450,210 | $83.5M |
| Champlain Investment Partners, LLC | 0.52% | Reduce -4.3% | 444,409 | $82.4M |
| AQR Capital Management | 0.10% | Reduce -1.7% | 438,844 | $81.4M |
| TimesSquare Capital Management, LLC | 1.17% | New | 433,806 | $80.4M |
| Frontier Capital Management Co. LLC | 0.74% | Add +6.0% | 418,854 | $77.6M |
| UBS Group AG | 0.02% | Add +559.3% | 363,555 | $67.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -3.1% | 353,835 | $65.6M |
| Baron Capital (BAMCO) | 0.17% | Add +2.5% | 347,800 | $64.5M |
| Allspring Global Investments Holdings, LLC | 0.10% | Add +21.8% | 326,299 | $61.7M |
| Brown Capital Management LLC | 1.31% | Reduce -13.0% | 304,780 | $56.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +5.3% | 296,207 | $54.9M |
| Eversept Partners, LP | 5.63% | Add +6.5% | 294,302 | $54.6M |
| Braidwell LP | 2.43% | Add +22.8% | 293,410 | $54.4M |
| Marshall Wace, LLP | 0.07% | Add +1775.3% | 277,131 | $51.4M |
| Raymond James Financial Inc. | 0.02% | — | 256,792 | $47.6M |
| Wellington Management Group LLP | 0.01% | Reduce -82.5% | 244,388 | $45.3M |
| Northern Trust Corp. | 0.01% | Add +40.2% | 244,249 | $45.3M |
| Amundi | 0.02% | Reduce -9.9% | 203,353 | $43.5M |
| Fuller & Thaler Asset Management, Inc. | 0.16% | Add +8.0% | 232,388 | $43.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +98.0% | 232,333 | $43.1M |
| Federated Hermes, Inc. | 0.09% | Reduce -28.6% | 228,330 | $42.3M |
| Franklin Resources Inc. | 0.01% | Add +8.7% | 221,560 | $41.1M |
| Jacobs Levy Equity Management, Inc. | 0.14% | Add +869.9% | 210,160 | $39.0M |
| Keybank National Association | 0.14% | Add +0.3% | 200,759 | $37.2M |
| Gilder Gagnon Howe & Co. LLC | 0.38% | Reduce -15.9% | 187,693 | $34.8M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.15% | Add +21.4% | 177,588 | $32.9M |
| Man Group plc | 0.10% | Add +112.7% | 175,926 | $32.6M |
| Sei Investments Co. | 0.04% | Add +27.7% | 163,474 | $30.3M |
| Atika Capital Management LLC | 3.78% | Reduce -1.5% | 157,600 | $29.2M |
| Voya Investment Management LLC | 0.04% | Add +1.7% | 156,575 | $29.0M |
| Nuveen Asset Management, LLC | 0.01% | Reduce -15.0% | 153,468 | $28.4M |
| ExodusPoint Capital Management, LP | 0.29% | Add +27.2% | 152,660 | $28.3M |
| Tri Locum Partners LP | 5.79% | Reduce -0.4% | 150,788 | $28.0M |
| Rhenman & Partners Asset Management AB | 2.86% | Add +23.0% | 150,041 | $27.8M |
| Bellevue Group AG | 0.53% | Reduce -23.9% | 148,478 | $27.5M |
| New York State Common Retirement Fund | 0.04% | Reduce -13.8% | 147,679 | $27.4M |
| Principal Financial Group Inc. | 0.01% | Add +3.7% | 146,310 | $27.1M |
| Riverbridge Partners LLC | 0.36% | New | 142,097 | $26.3M |
| Renaissance Technologies | 0.04% | Add +36.0% | 136,700 | $25.3M |
| Eagle Health Investments LP | 6.21% | No change | 136,603 | $25.3M |
| Rock Springs Capital Management LP | 0.92% | No change | 130,000 | $24.1M |
| Thrivent Financial for Lutherans | 0.05% | Add +16.8% | 129,120 | $23.9M |
| Eventide Asset Management, LLC | 0.42% | No change | 125,090 | $23.2M |
| Aberdeen Group plc | 0.04% | No change | 121,361 | $22.4M |
| Credit Agricole S A | 0.07% | Reduce -14.1% | 118,076 | $21.9M |
| Ameriprise Financial Inc. | 0.01% | Reduce -42.5% | 104,756 | $19.4M |
| First Trust Advisors LP | 0.02% | New | 101,614 | $18.8M |
| Integral Health Asset Management, LLC | 1.64% | Reduce -37.5% | 100,000 | $18.5M |
| Legal & General Group Plc | 0.00% | Add +3.3% | 95,478 | $17.7M |
| Los Angeles Capital Management LLC | 0.07% | Add +110.7% | 90,542 | $16.8M |
| Neuberger Berman Group LLC | 0.01% | Add +5.2% | 84,225 | $15.6M |
| Capital Fund Management S.A. | 0.15% | Reduce -16.9% | 80,984 | $15.0M |
| Victory Capital Management Inc. | 0.01% | Reduce -6.5% | 77,469 | $14.4M |
| Public Sector Pension Investment Board | 0.06% | Add +17.9% | 74,659 | $13.8M |
| Rhumbline Advisers | 0.01% | Reduce -3.8% | 73,650 | $13.7M |
| Mitsubishi UFJ Trust & Banking Corp | 0.03% | Reduce -11.3% | 73,352 | $13.6M |
| State of Wisconsin Investment Board | 0.03% | Add +6.0% | 65,688 | $12.2M |
| Mairs & Power Inc. | 0.12% | Add +5.7% | 64,671 | $12.0M |
| Lazard Asset Management LLC | 0.02% | Reduce -1.4% | 64,282 | $11.9M |
| Fred Alger Management, LLC | 0.06% | Reduce -9.6% | 63,125 | $11.7M |
| Swiss National Bank | 0.01% | Add +1.0% | 58,600 | $10.9M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -64.7% | 57,932 | $10.7M |
| Norges Bank | 0.00% | Reduce -79.3% | 57,617 | $10.7M |
| WCM Investment Management, LLC | 0.02% | New | 55,735 | $10.3M |
| Citadel Advisors | 0.01% | Reduce -52.5% | 52,421 | $9.7M |
| Rheos Capital Works Inc. | 0.54% | No change | 52,400 | $9.7M |
| Kornitzer Capital Management Inc. | 0.18% | No change | 50,240 | $9.3M |
| Impax Asset Management Group plc | 0.04% | No change | 50,000 | $9.3M |
| M&G PLC | 0.06% | New | 49,704 | $9.2M |
| Teachers Retirement System of the State of Kentucky | 0.08% | Reduce -2.6% | 47,888 | $8.9M |
| Jennison Associates LLC | 0.01% | New | 47,586 | $8.8M |
| Bank of America Corp. | 0.00% | Reduce -43.7% | 46,396 | $8.6M |
| Algert Global LLC | 0.19% | Reduce -5.6% | 43,012 | $8.0M |
| Kopp Family Office, LLC | 4.82% | Reduce -0.1% | 41,041 | $7.6M |
| California Public Employees Retirement System | 0.00% | Reduce -24.5% | 38,568 | $7.1M |
| Bullseye Asset Management LLC | 3.15% | Reduce -1.3% | 36,128 | $6.7M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +1587.1% | 35,294 | $6.5M |
| Public Employees Retirement System of Ohio | 0.02% | Reduce -3.3% | 35,178 | $6.5M |
| Beck Bode, LLC | 1.18% | New | 34,711 | $6.4M |
| Trexquant Investment LP | 0.07% | New | 33,871 | $6.3M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -33.8% | 32,565 | $6.0M |
| State Board of Administration of Florida Retirement System | 0.01% | Reduce -2.3% | 31,110 | $5.8M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -1.4% | 28,819 | $5.4M |
| Baird Financial Group, Inc. | 0.01% | Reduce -12.3% | 28,391 | $5.3M |
| Barclays PLC | 0.00% | Reduce -33.3% | 28,375 | $5.3M |
"% of holder's portfolio" is INSP's weight in each manager's 13F, not the share of Inspire Medical Systems Inc. the manager owns.