Grantham, Mayo, Van Otterloo & Co. LLC

Position in DGX — Quest Diagnostics Inc

CIK 1352662 Boston, MA

Back to DGX Full portfolio

Position in DGX

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$400,205,473

+$31,170,430 QoQ

Shares Held

1,888,207

+0.3% QoQ

Ownership

1.71%

of shares outstanding

% of Portfolio

0.90%

of 13F equity value

Holder Rank

#13

of 1,090 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 89% Shared 0% None 11%

Common Shares in DGX Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

Grantham, Mayo, Van Otterloo & Co. LLC holds $1,794,242,555 across 5 Diagnostics & Research names. DGX ranks #2 (22.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TMO	Thermo Fisher Scientific Inc.	2,739,191	$1,373,320,799
2	DGX	Quest Diagnostics Inc This page	1,888,207	$400,205,473
3	MEDP	Medpace Holdings, Inc.	34,060	$18,037,835
4	A	Agilent Technologies, Inc.	18,637	$2,475,552
5	WAT	Waters Corp /De/	541	$202,896

All Filings in DGX

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26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$400,205,473	1,888,207	+0.3%	Shares	Sole	2026-08-13
2026-03-31	$369,035,043	1,883,024	+3.7%	Shares	Sole	2026-05-14
2025-12-31	$315,140,891	1,816,060	+4.0%	Shares	Sole	2026-02-17
2025-09-30	$332,828,912	1,746,400	-0.1%	Shares	Sole	2025-11-13
2025-06-30	$313,984,617	1,747,952	-12.9%	Shares	Sole	2025-08-13
2025-03-31	$339,507,414	2,006,545	-11.6%	Shares	Sole	2025-05-14
2024-12-31	$342,299,831	2,268,990	+1.2%	Shares	Sole	2025-02-13
2024-09-30	$348,190,974	2,242,776	+5.4%	Shares	Sole	2024-11-13
2024-06-30	$291,379,330	2,128,721	+4.2%	Shares	Sole	2024-08-13
2024-03-31	$271,977,673	2,043,255	+19.8%	Shares	Sole	2024-05-14
2023-12-31	$235,105,668	1,705,147	+4.2%	Shares	Sole	2024-02-13
2023-09-30	$199,412,557	1,636,407	+2.4%	Shares	Sole	2023-11-13
2023-06-30	$224,666,324	1,598,366	+6.7%	Shares	Sole	2023-08-14
2023-03-31	$211,941,708	1,498,033	+1.0%	Shares	Sole	2023-05-12
2022-12-31	$232,036,970	1,483,233	-12.7%	Shares	Sole	2023-02-13
2022-09-30	$208,405,282	1,698,633	-2.1%	Shares	Sole	2022-11-10
2022-06-30	$230,799,423	1,735,595	-1.9%	Shares	Sole	2022-08-12
2022-03-31	$242,208,669	1,769,755	-0.5%	Shares	Sole	2022-05-13
2021-12-31	$307,771,641	1,778,924	+0.3%	Shares	Sole	2022-02-11
2021-09-30	$257,686,215	1,773,355	+3.3%	Shares	Sole	2021-11-12
2021-06-30	$226,473,321	1,716,097	+11.5%	Shares	Sole	2021-08-12
2021-03-31	$197,560,820	1,539,355	-0.8%	Shares	Sole	2021-05-13
2020-12-31	$184,858,172	1,551,214	+0.0%	Shares	Sole	2021-02-12
2020-09-30	$177,564,258	1,550,915	-7.0%	Shares	Sole	2020-11-13
2020-06-30	$190,085,621	1,668,003	+21.5%	Shares	Sole	2020-08-13
2020-03-31	$110,259,930	1,373,100	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.