Who owns OPK
231 institutions reported holding OPK for 2026Q1, together 26% of the company, more than the 220 a quarter earlier.
231
Institutions reporting a position · as of 2026Q1 · up from 220 the quarter before
- Shares held by institutions
- 200.8M
Shares held by institutions · 26% of the company · long US equity positions only, as reported on Form 13F
- Reported value
- $229M
Reported value · at 2026-03-31 prices, not today's
- Top 5 holders
- 18%
Top 5 holders · of the whole company, between five filers
Details›
- Reporting quarter2026-03-31
- 2026Q1
- Quarters on record
- 52
- New positions
- 34
- Positions exited
- 28
- Added to
- 51
- Reduced
- 60
- Top 10 holdersof the company
- 21%
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q1 | 231 | 200.8M | $229M |
| 2025Q4 | 220 | 199.6M | $251M |
| 2025Q3 | 231 | 196.2M | $303M |
| 2025Q2 | 221 | 205.2M | $270M |
| 2025Q1 | 253 | 242.1M | $401M |
| 2024Q4 | 234 | 197.5M | $290M |
| 2024Q3 | 233 | 186.7M | $279M |
| 2024Q2 | 232 | 182.1M | $228M |
| 2024Q1 | 223 | 158.8M | $191M |
| 2023Q4 | 218 | 169.9M | $257M |
| 2023Q3 | 224 | 167.2M | $268M |
| 2023Q2 | 229 | 173.5M | $376M |
| 2023Q1 | 226 | 177.7M | $259M |
| 2022Q4 | 220 | 179.7M | $225M |
| 2022Q3 | 218 | 184.8M | $349M |
| 2022Q2 | 227 | 189.6M | $480M |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Rubric Capital Management LP | 47.8M | 6.3% | $54M |
| BlackRock Inc. | 36.2M | 4.8% | $41M |
| VANGUARD GROUP INC | 32.6M | 4.3% | $37M |
| GEODE CAPITAL MANAGEMENT LLC | 11.3M | 1.5% | $13M |
| STATE STREET CORP | 9.5M | 1.3% | $11M |
| GOLDMAN SACHS GROUP INC | 7.7M | 1.0% | $8.7M |
| UBS Group AG | 6.1M | 0.80% | $6.9M |
| Whitefort Capital Management, LP | 4.3M | 0.56% | $4.8M |
| NORTHERN TRUST CORP | 3.6M | 0.48% | $4.1M |
| Charles Schwab Trust Co | 3.6M | 0.47% | $4.1M |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.
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