OSR Ownership | Who Owns OSR?
OSR Ownership Summary
OSR is owned by 6.54% institutional investors, 45.84% insiders, and 47.62% retail investors. Toronto dominion bank is the largest institutional shareholder, holding 0% of OSRH shares. Fidelity Extended Market Index is the top mutual fund, with 0.25% of its assets in OSR shares.
OSRH Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | OSR | 6.54% | 45.84% | 47.62% |
| Sector | Healthcare Stocks | 35.56% | 12.08% | 52.36% |
| Industry | Biotech Stocks | 35.43% | 12.01% | 52.56% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Toronto dominion bank | - | - | - |
| Stonex group | - | - | - |
| Citigroup | - | - | - |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Toronto dominion bank | - | - | - |
| Stonex group | - | - | - |
| Citigroup | - | - | - |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Citigroup | - | - | -384.00 |
| Stonex group | - | - | -15.44K |
| Toronto dominion bank | - | - | -40.00K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Toronto dominion bank | - | - | -40.00K |
| Stonex group | - | - | -15.44K |
| Citigroup | - | - | -384.00 |
Sold Out
| Holder | Change |
|---|---|
| Citigroup | -384.00 |
| Stonex group | -15.44K |
| Toronto dominion bank | -40.00K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 11 | - | 292,904 | 69.27% | 6 | 43.84% | 8 | 33.33% | 2 | - |
| Dec 31, 2025 | 11 | 37.50% | 173,040 | -23.14% | 3 | 15.30% | 6 | - | 2 | - |
| Sep 30, 2025 | 8 | - | 225,125 | 156.09% | 5 | 130.56% | 6 | 20.00% | - | -100.00% |
| Jun 30, 2025 | 8 | - | 87,910 | 39.74% | 1 | 99.56% | 5 | -37.50% | 1 | - |
| Mar 31, 2025 | 8 | - | 62,911 | - | 1 | - | 8 | - | - | - |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Fidelity Extended Market Index | 89.34K | 0.25% | 16.33K |
| Vanguard Institutional Extnd Mkt Idx Tr | 37.37K | 0.11% | - |
| NT Ext Equity Mkt Index Fund - NL | 10.91K | 0.03% | 10.91K |
| NT Ext Equity Mkt Idx Fd - DC - NL - T2 | 7.91K | 0.02% | 7.91K |
| Fidelity Series Total Market Index | 6.77K | 0.02% | - |
| Spartan Total Market Index Pool A1 | 4.35K | 0.01% | - |
| Spartan Total Market Index Pool G | 4.35K | 0.01% | - |
| Fidelity Nasdaq Composite Index | 4.32K | 0.01% | - |
| GAMCO Intl SICAV Merger Arbtrg I (USD) | 2.67K | 0.01% | -31.00 |
| Spartan Extended Market Index Pool F | 580.00 | 0.00% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Feb 14, 2023 | Bellevue Global Life Science Investors LLC | - | Buy | $4.95M |
| Feb 14, 2023 | Hwang Kuk Hyoun | Chief Executive Officer | Buy | $4.95M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2023 Q1 | 2 | - |
OSRH Ownership FAQ
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