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Equibles

Douglass Winthrop Advisors, LLC

Position in DGX — Quest Diagnostics Inc

CIK 1308527 NEW YORK, NY
Back to DGX Full portfolio

Position in DGX

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$781,247
+$58,865 QoQ
Shares Held
3,686
0.0% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in DGX Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

Douglass Winthrop Advisors, LLC holds $114,925,174 across 7 Diagnostics & Research names. DGX ranks #5 (0.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MTD
Mettler Toledo International Inc/
 69,514 $88,804,830
2 TMO
Thermo Fisher Scientific Inc.
 25,062 $12,565,084
3 DHR
Danaher Corp /De/
 58,291 $11,103,269
4 IDXX
Idexx Laboratories Inc /De
 1,614 $849,674
5 DGX
Quest Diagnostics Inc
This page 		3,686 $781,247
6 LH
Labcorp Holdings Inc.
 1,717 $480,760
7 A
Agilent Technologies, Inc.
 2,562 $340,310

All Filings in DGX

Export CSV
25 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $781,247 3,686
2026-03-31 $722,382 3,686
2025-12-31 $639,631 3,686
2025-09-30 $702,477 3,686
2025-06-30 $655,649 3,650
2025-03-31 $617,580 3,650
2024-12-31 $550,639 3,650
2024-09-30 $566,662 3,650
2024-06-30 $499,612 3,650
2024-03-31 $485,851 3,650
2023-12-31 $503,262 3,650
2023-09-30 $444,789 3,650
2023-06-30 $513,044 3,650
2023-03-31 $516,402 3,650
2022-12-31 $571,006 3,650
2022-09-30 $447,818 3,650
2022-06-30 $485,377 3,650
2022-03-31 $499,539 3,650
2021-12-31 $631,486 3,650
2021-09-30 $530,381 3,650
2021-06-30 $481,690 3,650
2021-03-31 $468,441 3,650
2020-12-31 $434,970 3,650
2020-09-30 $417,888 3,650
2020-06-30 $415,954 3,650