CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in DGX — Quest Diagnostics Inc
CIK 884546
SAN FRANCISCO, CA
Position in DGX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$149,099,624
+$18,769,224 QoQ
Shares Held
760,790
+1.3% QoQ
Ownership
0.687%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 99.99605673050382.ToString("F0")%
Shared 0.ToString("F0")%
None 0.0039432694961816.ToString("F0")%
Common Shares in DGX 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. DGX ranks #9 (3.1% 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 DGX
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $149,099,624 | 760,790 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $130,330,400 | 751,054 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $142,372,979 | 747,051 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $134,104,393 | 746,559 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $125,349,789 | 740,838 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $111,098,282 | 736,433 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $109,932,525 | 708,100 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $95,204,830 | 695,535 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $90,558,060 | 680,325 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $91,540,875 | 663,917 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $78,822,947 | 646,832 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $90,044,282 | 640,611 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $91,427,347 | 646,221 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $101,382,975 | 648,063 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $82,075,193 | 668,964 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $85,892,313 | 645,904 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $86,649,761 | 633,127 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $108,305,125 | 626,005 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $88,441,187 | 608,638 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $83,341,430 | 631,518 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $79,791,929 | 621,723 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $72,921,076 | 611,908 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $69,695,100 | 608,744 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $72,369,728 | 635,045 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $52,391,012 | 652,441 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||