Position in OPK
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$262,500
+$63,000 QoQ
Shares Held
175,000
0.0% QoQ
Ownership
0.023%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#60
of 222 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in OPK Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026GAMCO INVESTORS, INC. ET AL holds $9,507,809 across 7 Diagnostics & Research names. OPK ranks #6 (2.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GRAL |
GRAIL, Inc.
|
66,713 | $4,554,496 | |
| 2 | TMO |
Thermo Fisher Scientific Inc.
|
4,060 | $2,035,521 | |
| 3 | NEO |
Neogenomics Inc
|
100,000 | $1,459,000 | |
| 4 | WAT |
Waters Corp /De/
|
1,291 | $484,176 | |
| 5 | A |
Agilent Technologies, Inc.
|
3,636 | $482,969 | |
| 6 | OPK |
Opko Health, Inc.
This page
|
175,000 | $262,500 | |
| 7 | DHR |
Danaher Corp /De/
|
1,203 | $229,147 |
All Filings in OPK
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $262,500 | 175,000 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $199,500 | 175,000 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $220,500 | 175,000 | Shares | Sole | 2026-02-05 | |
| 2025-09-30 | $271,250 | 175,000 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $231,000 | 175,000 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $290,500 | 175,000 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $257,250 | 175,000 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $260,750 | 175,000 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $218,750 | 175,000 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $216,000 | 180,000 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $279,350 | 185,000 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $320,000 | 200,000 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $434,000 | 200,000 | Shares | Sole | 2023-08-15 | |
| 2023-03-31 | $292,000 | 200,000 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $250,000 | 200,000 | Shares | Sole | 2023-02-15 | |
| 2022-09-30 | $378,000 | 200,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $506,000 | 200,000 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $688,000 | 200,000 | Shares | Sole | 2022-05-18 | |
| 2021-12-31 | $962,000 | 200,000 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $730,000 | 200,000 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $810,000 | 200,000 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $858,000 | 200,000 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $869,000 | 220,000 | Shares | Sole | 2021-02-05 | |
| 2020-09-30 | $811,800 | 220,000 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $750,200 | 220,000 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $294,800 | 220,000 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||