Linden Thomas Advisory Services, LLC
Position in DGX — Quest Diagnostics Inc
CIK 1965702
Charlotte, NC
Position in DGX
as of Jun 30, 2026
· filed Jul 16, 2026
Position Value
$2,657,641
+$264,726 QoQ
Shares Held
12,539
+2.7% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#25
of 132 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 0.ToString("F0")%
None 100.ToString("F0")%
Common Shares in DGX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026Linden Thomas Advisory Services, LLC holds $20,745,859 across 10 Diagnostics & Research names. DGX ranks #4 (12.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
13,803 | $6,920,272 | |
| 2 | IDXX |
Idexx Laboratories Inc /De
|
7,872 | $4,144,135 | |
| 3 | MTD |
Mettler Toledo International Inc/
|
2,271 | $2,901,225 | |
| 4 | DGX |
Quest Diagnostics Inc
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|
12,539 | $2,657,641 | |
| 5 | MEDP |
Medpace Holdings, Inc.
|
3,766 | $1,994,435 | |
| 6 | RVTY |
Revvity, Inc.
|
7,837 | $871,944 | |
| 7 | ILMN |
Illumina, Inc.
|
2,384 | $419,178 | |
| 8 | DHR |
Danaher Corp /De/
|
1,767 | $336,578 |
All Filings in DGX
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15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $2,657,641 | 12,539 | Shares | Sole | 2026-07-16 | |
| 2026-03-31 | $2,392,915 | 12,210 | Shares | Sole | 2026-04-10 | |
| 2025-12-31 | $2,074,204 | 11,953 | Shares | Sole | 2026-01-16 | |
| 2025-09-30 | $2,229,023 | 11,696 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $2,084,067 | 11,602 | Shares | Sole | 2025-07-31 | |
| 2025-03-31 | $1,947,999 | 11,513 | Shares | Sole | 2025-04-30 | |
| 2024-12-31 | $1,727,347 | 11,450 | Shares | Sole | 2025-01-21 | |
| 2024-09-30 | $1,777,767 | 11,451 | Shares | Sole | 2024-10-17 | |
| 2024-06-30 | $1,556,462 | 11,371 | Shares | Sole | 2024-07-10 | |
| 2024-03-31 | $1,516,256 | 11,391 | Shares | Sole | 2024-04-30 | |
| 2023-12-31 | $1,482,072 | 10,749 | Shares | Sole | 2024-02-01 | |
| 2023-09-30 | $1,190,328 | 9,768 | Shares | Sole | 2023-10-20 | |
| 2023-06-30 | $1,491,903 | 10,614 | Shares | Sole | 2023-07-27 | |
| 2023-03-31 | $1,441,964 | 10,192 | Shares | Sole | 2023-04-25 | |
| 2022-12-31 | $1,441,438 | 9,214 | Shares | Sole | 2023-02-17 | |
| No filing history on record for this holder in this stock. | ||||||