Position in OPK
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$41,304,729
-$2,608,821 QoQ
Shares Held
36,232,223
+4.0% QoQ
Ownership
4.80%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 97.276540277421.ToString("F0")%
Shared 0.ToString("F0")%
None 2.7234597225789874.ToString("F0")%
Common Shares in OPK Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026BlackRock, Inc. holds $54,004,955,805 across 42 Diagnostics & Research names. OPK ranks #29 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
30,427,192 | $14,955,877,673 | |
| 2 | DHR |
Danaher Corp /De/
|
51,640,619 | $9,791,061,354 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
|
8,365,553 | $4,700,520,563 | |
| 4 | A |
Agilent Technologies, Inc.
|
25,902,662 | $2,952,385,405 | |
| 5 | IQV |
Iqvia Holdings Inc.
|
15,027,444 | $2,562,780,290 | |
| 6 | WAT |
Waters Corp /De/
|
8,543,014 | $2,544,109,560 | |
| 7 | ILMN |
Illumina, Inc.
|
19,023,590 | $2,344,847,691 | |
| 8 | MTD |
Mettler Toledo International Inc/
|
1,771,002 | $2,233,587,712 |
All Filings in OPK
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $41,304,729 | 36,232,223 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $43,913,550 | 34,852,030 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $51,417,191 | 33,172,384 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $41,513,309 | 31,449,482 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $45,824,251 | 27,604,974 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $41,407,855 | 28,168,612 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $42,612,948 | 28,599,298 | Shares | Sole | 2024-11-13 | |
| No filing history on record for this holder in this stock. | ||||||