Inspire Medical Systems Ownership | Who Owns Inspire Medical Systems?
Inspire Medical Systems Ownership Summary
Inspire Medical Systems is owned by 31.79% institutional investors, 1.14% insiders, and 67.07% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 12.26% of INSP shares. Vanguard Health Care Inv is the top mutual fund, with 7.27% of its assets in Inspire Medical Systems shares.
INSP Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Inspire Medical Systems | 31.79% | 1.14% | 67.07% |
| Sector | Healthcare Stocks | 35.38% | 11.35% | 53.27% |
| Industry | Medical Device Stocks | 39.91% | 10.58% | 49.51% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 3.55M | 12.26% | $183.09M |
| Vanguard group | 2.95M | 10.07% | $272.37M |
| Deerfield management company, l.p. (series c) | 2.70M | 9.34% | $139.43M |
| Wellington management group llp | 2.54M | 8.76% | $130.80M |
| Blackrock | 1.86M | 6.25% | $248.64M |
| Morgan stanley | 1.45M | 5.01% | $74.82M |
| D. e. shaw | 1.19M | 4.11% | $61.30M |
| William blair investment management | 1.14M | 3.93% | $58.67M |
| State street | 956.01K | 3.30% | $49.31M |
| Artisan partners limited partnership | 780.58K | 2.70% | $40.26M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Deerfield management company, l.p. (series c) | 2.70M | 1.65% | $139.43M |
| Bullseye asset management | 51.13K | 1.53% | $2.64M |
| Soleus capital management | 576.30K | 1.20% | $29.73M |
| Braidwell lp | 677.57K | 1.17% | $34.95M |
| Vestal point capital, lp | 539.27K | 0.78% | $27.82M |
| Brown capital management | 84.37K | 0.62% | $4.35M |
| Monimus capital management, lp | 13.08K | 0.60% | $970.31K |
| Rheos capital works | 117.40K | 0.40% | $6.05M |
| Rock springs capital management lp | 131.80K | 0.40% | $6.80M |
| Regal partners | 135.77K | 0.38% | $7.00M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Deerfield management company, l.p. (series c) | 2.70M | 1.65% | 1.20M |
| Vestal point capital, lp | 539.27K | 0.78% | 539.27K |
| Goldman sachs group | 664.00K | 0.00% | 379.12K |
| Wellington management group llp | 2.54M | 0.02% | 324.86K |
| Aqr capital management | 308.66K | 0.01% | 281.62K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Dragoneer investment group | - | - | -2.35M |
| Baillie gifford | - | - | -1.08M |
| Fuller & thaler asset management | - | - | -668.10K |
| Farallon capital management | - | - | -626.85K |
| Janus henderson group | 13.45K | 0.00% | -548.88K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Cerity partners | 181.43K | 0.01% | 181.43K | $9.36M |
| Vanguard fiduciary trust | 167.70K | 0.00% | 167.70K | $8.65M |
| Longaeva partners | 138.76K | 0.27% | 138.76K | $7.16M |
| Norges bank | 129.57K | 0.00% | 129.57K | $11.95M |
| Cubist systematic strategies | 97.39K | 0.03% | 97.39K | $7.23M |
Sold Out
| Holder | Change |
|---|---|
| Kilter group | -1.00 |
| Activest wealth management | -1.00 |
| Mendota financial group | -1.00 |
| Assetmark | -1.00 |
| Elyxium wealth | -1.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 140 | -61.64% | 9,201,531 | -72.84% | 31 | 0.23% | 77 | -62.80% | 46 | -60.34% |
| Dec 31, 2025 | 265 | -22.06% | 24,282,827 | -21.96% | 82 | 0.74% | 153 | -5.56% | 84 | -35.88% |
| Sep 30, 2025 | 325 | -12.16% | 31,091,867 | -8.07% | 105 | 0.80% | 157 | -12.29% | 125 | -12.59% |
| Jun 30, 2025 | 360 | -5.01% | 33,671,190 | -0.52% | 114 | 0.88% | 177 | -7.33% | 140 | 17.65% |
| Mar 31, 2025 | 380 | -0.52% | 34,018,174 | 1.77% | 114 | 0.91% | 190 | 3.26% | 121 | -4.72% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Health Care Inv | 2.09M | 7.27% | 1.24M |
| iShares Core S&P Small-Cap ETF | 1.59M | 5.50% | 387.00 |
| Vanguard Total Stock Mkt Idx Inv | 921.95K | 3.20% | 5.04K |
| Vanguard US Total Market Shares ETF | 939.66K | 3.17% | 747.00 |
| Vanguard Explorer Inv | 655.41K | 2.29% | 655.41K |
| Vanguard Small Cap Index | 658.89K | 2.29% | -680.00 |
| Baillie Gifford US Equity Growth | 640.69K | 2.14% | -20.57K |
| Vanguard US Growth Investor | 577.84K | 1.96% | -26.67K |
| Xtrackers S&P 500 Swap ETF 1C | 505.36K | 1.77% | -3.73K |
| FullerThaler Behavioral Small-Cap Growth | 481.30K | 1.68% | 21.60K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 14, 2026 | Rondoni John | See Remarks | Sell | $30.11K |
| May 08, 2026 | mcCormick Shawn | - | Sell | $31.54K |
| Jan 09, 2026 | Rondoni John | See Remarks | Sell | $10.90K |
| Dec 02, 2025 | mcCormick Shawn | - | Sell | $166.80K |
| Nov 28, 2025 | mcCormick Shawn | - | Sell | $254.96K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 2 |
| 2026 Q1 | - | 1 |
| 2025 Q4 | - | 2 |
| 2025 Q3 | - | 1 |
| 2025 Q2 | - | 2 |
INSP Ownership FAQ
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