Institutional Ownership
Opko Health Inc
CUSIP 68375N103COMOPKQ1 2026
13D / 13G Filings
27
Schedule 13D/13G on record
Beneficial Filers
7
Distinct reporting persons
Largest Stake
32.8%
Max % of class reported
Institutional Holders
226
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
27 filings · latest Oct 1, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Oct 1, 2025 | Frost Phillip Md Et Al | 13D/A | 32.8% | — | SEC |
| 2 | Jul 9, 2025 | Rubric Capital Management LP | 13G/A | 6.0% | 47.79M | SEC |
| 3 | Apr 3, 2025 | Frost Phillip Md Et Al | 13D/A | 31.7% | — | SEC |
| 4 | Apr 3, 2025 | Hsiao Jane Ph D | 13D/A | 4.5% | — | SEC |
| 5 | Nov 15, 2024 | Frost Phillip Md Et Al | 13D/A | 31.5% | 211.61M | SEC |
| 6 | Nov 13, 2024 | Rubric Capital Management LP | 13G | 7.0% | 48.71M | SEC |
| 7 | Nov 12, 2024 | Vanguard Group Inc | 13G/A | 4.2% | 29.22M | SEC |
| 8 | Nov 4, 2024 | Vanguard Group Inc | 13G/A | 4.2% | 29.22M | SEC |
| 9 | Aug 29, 2024 | Frost Phillip Md Et Al | 13D/A | 30.5% | 211.23M | SEC |
| 10 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 5.1% | 39.75M | SEC |
17 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Opko Health Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Rubric Capital Management LP | 47.79M | $54.48M |
| 2 | Blackrock, Inc. | 36.23M | $41.30M |
| 3 | Geode Capital Management, LLC | 11.30M | $12.89M |
| 4 | State Street Corp | 9.50M | $10.83M |
| 5 | Goldman Sachs Group Inc | 7.68M | $8.75M |
| 6 | Ubs Group AG | 6.07M | $6.92M |
| 7 | Whitefort Capital Management, LP | 4.25M | $4.85M |
| 8 | Northern Trust Corp | 3.62M | $4.13M |
| 9 | Charles Schwab Investment Management Inc | 3.57M | $4.07M |
| 10 | Awm Investment Company, Inc. | 2.10M | $2.39M |