Position in DGX
as of Mar 31, 2026
· filed May 7, 2026
Position Value
$382,069,866
+$46,888,344 QoQ
Shares Held
1,949,535
+0.9% QoQ
Ownership
1.76%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 81.89963247646233.ToString("F0")%
Shared 13.209560228464737.ToString("F0")%
None 4.8908072950729276.ToString("F0")%
Common Shares in DGX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026DIMENSIONAL FUND ADVISORS LP holds $4,738,083,100 across 33 Diagnostics & Research names. DGX ranks #3 (8.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
1,689,790 | $830,582,476 | |
| 2 | DHR |
Danaher Corp /De/
|
2,645,911 | $501,664,724 | |
| 3 | DGX |
Quest Diagnostics Inc
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|
1,949,535 | $382,069,866 | |
| 4 | LH |
Labcorp Holdings Inc.
|
1,332,775 | $355,597,695 | |
| 5 | IDXX |
Idexx Laboratories Inc /De
|
573,332 | $322,149,515 | |
| 6 | CRL |
Charles River Laboratories International, Inc.
|
1,652,484 | $285,053,489 | |
| 7 | IQV |
Iqvia Holdings Inc.
|
1,657,696 | $282,703,474 | |
| 8 | RVTY |
Revvity, Inc.
|
2,917,953 | $255,641,860 |
All Filings in DGX
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25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $382,069,866 | 1,949,535 | Shares | Sole | 2026-05-07 | |
| 2025-12-31 | $335,181,522 | 1,931,548 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $363,533,253 | 1,907,510 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $341,540,396 | 1,901,355 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $323,605,150 | 1,912,560 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $307,975,409 | 2,041,465 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $317,737,908 | 2,046,621 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $288,750,411 | 2,109,515 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $263,573,771 | 1,980,120 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $272,053,645 | 1,973,119 | Shares | Sole | 2024-02-07 | |
| 2023-09-30 | $240,413,448 | 1,972,866 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $279,808,993 | 1,990,673 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $285,909,997 | 2,020,851 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $318,553,606 | 2,036,267 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $261,031,683 | 2,127,571 | Shares | Sole | 2022-11-10 | |
| 2022-06-30 | $286,498,892 | 2,154,451 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $299,742,286 | 2,190,138 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $378,358,856 | 2,186,919 | Shares | Defined | 2022-02-09 | |
| 2021-09-30 | $313,437,157 | 2,157,024 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $284,807,756 | 2,158,125 | Shares | Defined | 2021-08-12 | |
| 2021-03-31 | $255,613,751 | 1,991,692 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $229,697,553 | 1,927,478 | Shares | Defined | 2021-03-08 | |
| 2020-09-30 | $211,534,242 | 1,847,622 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $212,278,876 | 1,862,749 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $153,737,722 | 1,914,542 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||