CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in OPK — Opko Health, Inc.
CIK 884546
SAN FRANCISCO, CA
Position in OPK
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$4,074,404
-$578,335 QoQ
Shares Held
3,574,039
-3.2% QoQ
Ownership
0.473%
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 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in OPK Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $4,755,724,319 across 32 Diagnostics & Research names. OPK ranks #29 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
2,934,842 | $1,442,562,888 | |
| 2 | DHR |
Danaher Corp /De/
|
4,734,898 | $897,736,660 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
|
610,217 | $342,874,830 | |
| 4 | IQV |
Iqvia Holdings Inc.
|
1,412,147 | $240,827,549 | |
| 5 | WAT |
Waters Corp /De/
|
772,524 | $230,057,646 | |
| 6 | A |
Agilent Technologies, Inc.
|
1,904,308 | $217,053,025 | |
| 7 | MTD |
Mettler Toledo International Inc/
|
161,665 | $203,891,898 | |
| 8 | LH |
Labcorp Holdings Inc.
|
646,135 | $172,395,279 |
All Filings in OPK
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,074,404 | 3,574,039 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $4,652,739 | 3,692,650 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $5,841,847 | 3,768,934 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $4,422,496 | 3,350,376 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $4,551,696 | 2,741,986 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $5,141,186 | 3,497,406 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $6,276,408 | 4,212,355 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $6,309,905 | 5,047,924 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $6,971,157 | 5,809,298 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $8,657,887 | 5,733,700 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $8,879,913 | 5,549,946 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $11,164,302 | 5,144,840 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $7,077,700 | 4,847,740 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $5,468,278 | 4,374,623 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $7,207,571 | 3,813,530 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $8,583,462 | 3,392,673 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $13,315,906 | 3,870,903 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $17,195,100 | 3,574,865 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $12,960,270 | 3,550,759 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $14,748,706 | 3,641,656 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $15,509,817 | 3,615,342 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $13,936,642 | 3,528,264 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $12,146,044 | 3,291,611 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $9,300,461 | 2,727,408 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $3,367,067 | 2,512,737 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||