Position in OPK
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$482,436
-$82,283 QoQ
Shares Held
423,190
-5.6% QoQ
Ownership
0.056%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 95.32125050213853.ToString("F0")%
Shared 0.ToString("F0")%
None 4.678749497861481.ToString("F0")%
Common Shares in OPK Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026ALLIANCEBERNSTEIN L.P. holds $4,425,586,457 across 32 Diagnostics & Research names. OPK ranks #29 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
2,190,608 | $1,076,749,550 | |
| 2 | MTD |
Mettler Toledo International Inc/
|
757,108 | $954,864,609 | |
| 3 | WAT |
Waters Corp /De/
|
2,116,737 | $630,364,278 | |
| 4 | IQV |
Iqvia Holdings Inc.
|
2,878,897 | $490,967,093 | |
| 5 | LH |
Labcorp Holdings Inc.
|
877,428 | $234,106,564 | |
| 6 | GH |
Guardant Health, Inc.
|
1,905,637 | $176,023,689 | |
| 7 | ICLR |
Icon PLC
|
1,344,595 | $148,792,882 | |
| 8 | ILMN |
Illumina, Inc.
|
1,091,559 | $134,545,562 |
All Filings in OPK
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $482,436 | 423,190 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $564,719 | 448,190 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $736,544 | 475,190 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $618,142 | 468,290 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $837,287 | 504,390 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $551,720 | 375,320 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $725,211 | 486,719 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $758,023 | 606,419 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $684,130 | 570,109 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $860,864 | 570,109 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $944,382 | 590,239 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $1,344,247 | 619,469 | Shares | Defined | 2023-08-15 | |
| 2023-03-31 | $904,424 | 619,469 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $774,336 | 619,469 | Shares | Defined | 2023-02-15 | |
| 2022-09-30 | $1,145,340 | 606,000 | Shares | Defined | 2022-11-15 | |
| 2022-06-30 | $1,533,180 | 606,000 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $2,061,936 | 599,400 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $2,875,899 | 597,900 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $3,277,335 | 897,900 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $2,421,495 | 597,900 | Shares | Defined | 2021-07-30 | |
| 2021-03-31 | $2,623,764 | 611,600 | Shares | Defined | 2021-05-06 | |
| 2020-12-31 | $2,379,875 | 602,500 | Shares | Defined | 2021-02-08 | |
| 2020-09-30 | $2,206,251 | 597,900 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $1,956,402 | 573,725 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $698,709 | 521,425 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||