Campbell & CO Investment Adviser LLC

Position in DGX — Quest Diagnostics Inc

CIK 1353570 BALTIMORE, MD

Position in DGX

as of Jun 30, 2026 · filed Aug 3, 2026 Compact

Position Value

$4,635,770

+$3,950,624 QoQ

Shares Held

21,872

+525.6% QoQ

Ownership

0.020%

of shares outstanding

% of Portfolio

0.24%

of 13F equity value

Holder Rank

#262

of 1,090 holders

Holding Since

Dec 2020

12 quarters on record

Voting authority Sole 0% Shared 0% None 100%

Healthcare · as of Jun 30, 2026

Campbell & CO Investment Adviser LLC holds $60,149,086 across 16 Diagnostics & Research names. DGX ranks #6 (7.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MTD	Mettler Toledo International Inc/	7,752	$9,903,257
2	LH	Labcorp Holdings Inc.	34,593	$9,686,040
3	IQV	Iqvia Holdings Inc.	45,367	$8,765,811
4	TMO	Thermo Fisher Scientific Inc.	16,256	$8,150,108
5	RVTY	Revvity, Inc.	70,574	$7,852,063
6	DGX	Quest Diagnostics Inc This page	21,872	$4,635,770
7	WAT	Waters Corp /De/	9,486	$3,557,629
8	IDXX	Idexx Laboratories Inc /De	5,836	$3,072,303

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$4,635,770	21,872	+525.6%	Shares	Sole	2026-08-03
2026-03-31	$685,146	3,496	-78.0%	Shares	Sole	2026-05-15
2025-12-31	$2,758,779	15,898	+200.6%	Shares	Sole	2026-02-12
2025-09-30	$1,007,977	5,289	+3.5%	Shares	Sole	2025-10-28
2025-03-31	$864,612	5,110	-5.7%	Shares	Sole	2025-05-14
2024-12-31	$817,510	5,419	-51.5%	Shares	Sole	2025-02-10
2024-09-30	$1,735,229	11,177	-37.6%	Shares	Sole	2024-11-12
2024-06-30	$2,451,657	17,911	+322.5%	Shares	Sole	2024-08-13
2023-03-31	$599,733	4,239	+51.8%	Shares	Sole	2023-05-11
2022-12-31	$436,936	2,793	+49.8%	Shares	Sole	2023-02-14
2021-06-30	$245,992	1,864	-68.5%	Shares	Sole	2021-08-11
2020-12-31	$704,771	5,914	—	Shares	Sole	2021-02-09
No filing history on record for this holder in this stock.