Quest Diagnostics Inc (DGX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

113,425,926Shares Outstanding

1,839,059Shares held by institutions

$377,908,234Value of institutional holdings

84.65%Institutional ownership %

3.20%Shares Changed QoQ

984No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Quest Diagnostics Inc (NYSE:DGX) includes 984 filers as of the latest reporting cycle ending December 2025.

Institutional ownership in Quest Diagnostics edged down to 84.7% in December 2025, compared to 92.4% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 3.20%, with a year-over-year an increase of 11.95% in the count of filers.
The latest 13F cycle for Quest Diagnostics reveals that of 984 total investors, 463 funds grew their exposure, whereas 328 reduced theirs and 193 made no changes.
The aggregate institutional position in Quest Diagnostics now stands at 96.02Mn shares as of December 2025, after investors increased their holdings (up by 2.98Mn shares quarter on quarter which is down 2.90Mn shares year over year).
The top institutional stake in Quest Diagnostics as of December 31, 2025 belongs to VANGUARD GROUP INC, which owns 14.39Mn shares, or 12.69% of the company.
Among the most significant buyers of Quest Diagnostics during December 2025 were NORGES BANK (1.32Mn), EdgePoint Investment Group Inc. (811.32K), GOLDMAN SACHS GROUP INC (671.95K), UBS Group AG (450.16K), MORGAN STANLEY (406.66K).
Leading sellers of Quest Diagnostics stock in December 2025 included WELLINGTON MANAGEMENT GROUP LLP (1.34Mn), BlackRock, Inc. (542.82K), Neuberger Berman Group LLC (474.68K), MARSHALL WACE, LLP (463.94K), MACQUARIE GROUP LTD (255.63K).
The top 10 institutional holders of Quest Diagnostics for the quarter ending December 2025 included VANGUARD GROUP INC (14.39Mn), BlackRock, Inc. (9.46Mn), STATE STREET CORP (5.38Mn), JPMORGAN CHASE & CO (4.15Mn), Boston Partners (3.91Mn), GEODE CAPITAL MANAGEMENT, LLC (3.03Mn), MORGAN STANLEY (2.69Mn), VICTORY CAPITAL MANAGEMENT INC (2.13Mn), DIMENSIONAL FUND ADVISORS LP (1.93Mn), Grantham, Mayo, Van Otterloo & Co. LLC (1.82Mn).

984 Institutional Holders

1,839,059 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	14,392,082	140,450	0.99%	$2,497,458,052.00
BlackRock, Inc.	31 Dec, 2025	9,459,218	-542,817	-5.43%	$1,641,458,028.00
STATE STREET CORP	31 Dec, 2025	5,382,547	158,617	3.04%	$934,033,381.00
JPMORGAN CHASE & CO	31 Dec, 2025	4,145,896	-171,495	-3.97%	$719,437,502.00
Boston Partners	31 Dec, 2025	3,913,326	-123,555	-3.06%	$680,020,198.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	3,028,207	-8,278	-0.27%	$523,515,466.00
MORGAN STANLEY	31 Dec, 2025	2,693,568	406,658	17.78%	$467,415,402.00
VICTORY CAPITAL MANAGEMENT INC	31 Dec, 2025	2,126,422	-217,552	-9.28%	$368,998,036.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,931,548	24,038	1.26%	$335,203,671.00
Grantham, Mayo, Van Otterloo & Co. LLC	31 Dec, 2025	1,816,060	69,660	3.99%	$315,141,159.00
WELLS FARGO & COMPANY/MN	31 Dec, 2025	1,769,093	-36,201	-2.01%	$306,990,631.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	1,735,663	671,947	63.17%	$301,189,681.00
EdgePoint Investment Group Inc.	31 Dec, 2025	1,661,072	811,320	95.48%	$288,245,824.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	1,622,938	-12,137	-0.74%	$281,628,383.00
DAVIS SELECTED ADVISERS	31 Dec, 2025	1,589,883	228,271	16.76%	$275,895,498.00
NORGES BANK	31 Dec, 2025	1,322,663	1,322,663	0.00%	$229,521,710.00
FMR LLC	31 Dec, 2025	1,202,254	-11,118	-0.92%	$208,627,187.00
UBS Group AG	31 Dec, 2025	1,114,451	450,161	67.77%	$193,390,683.00
NORTHERN TRUST CORP	31 Dec, 2025	1,078,573	-74,752	-6.48%	$187,164,772.00
FIDUCIARY MANAGEMENT INC /WI/	31 Dec, 2025	1,046,921	-100,613	-8.77%	$181,672,201.00

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