Quest Diagnostics DGX Institutional Ownership

NYSE DGX

$247.35 +0.27 (+0.11%)

As of: Sep 17, 2026 · 3:59 PM EDT

Institutions by Trading Activity

1,096 Institutions

Increased 543 49.5%

Unchanged 206 18.8%

Reduced 347 31.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

95.09%

▲+2.29 pp QoQ

Shares Held by Institutions

105.55Mn

of 111.00Mn outstanding

▲+3.82% QoQ

Shares Outstanding

111.00Mn

5.45Mn held outside 13F filers

Institutional Investors

1,096

filed 13F for Jun 2026

▲+40 vs prior quarter

Net Shares Added (QoQ)

+3.88Mn

accumulated since last quarter

Value of Holdings

$24.81Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Quest Diagnostics Inc (NYSE:DGX) appears in 1,096 institutional 13F filings for the quarter ending June 2026.

Their combined ownership stood at 95.1% of outstanding shares in June 2026, up from 92.8% in March 2026.
They increased total shares held in DGX by 3.82% quarter over quarter, and investors in Quest Diagnostics increased 11.95% from a year ago.
Activity in DGX broke down as 543 buyers, 347 sellers, and 206 unchanged among 1,096 total holders.
Combined, these investors held 105.55Mn shares in DGX for June 2026, up by 3.88Mn shares quarter on quarter, and down 6.13Mn shares year over year.
BlackRock, Inc. holds the largest position in DGX at 9.28Mn shares as of June 30, 2026, or 8.36% of shares outstanding.
The biggest buyers of Quest Diagnostics for the quarter ending June 2026 included NORGES BANK (1.41Mn), Sixth Street Partners Management Company, L.P. (773.71K), Boston Partners (732.24K), FMR LLC (456.52K), Pacer Advisors, Inc. (382.0K).
The biggest sellers of Quest Diagnostics for the quarter ending June 2026 included PRICE T ROWE ASSOCIATES INC /MD/ (853.0K), Qube Research & Technologies Ltd (391.32K), Goldman Sachs Group Inc (366.0K), Jpmorgan Chase & Co (326.02K), VICTORY CAPITAL MANAGEMENT INC (295.78K).
Business Quant data shows the 10 biggest positions in Quest Diagnostics as of June 2026 are held by BlackRock, Inc. (9.28Mn), VANGUARD CAPITAL MANAGEMENT LLC (7.23Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (6.13Mn), State Street Corp (5.52Mn), PRICE T ROWE ASSOCIATES INC /MD/ (5.44Mn), Boston Partners (4.74Mn), Jpmorgan Chase & Co (3.52Mn), GEODE CAPITAL MANAGEMENT, LLC (3.14Mn), Morgan Stanley (2.46Mn), EdgePoint Investment Group Inc. (2.25Mn).

Form 13F Holdings

1,096 Institutional Holders

Report period 30 Jun, 2026

Total shares held 105.55Mn

Of outstanding 95.09%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	9,275,411	8.36%	▲103,119	+1.12%	$1.97Bn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	7,233,394	6.52%	▲87,722	+1.23%	$1.53Bn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	6,131,045	5.52%	▲49,645	+0.82%	$1.30Bn
4	State Street Corp	0000093751	5,516,643	4.97%	▲135,822	+2.52%	$1.17Bn
5	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	5,444,986	4.91%	▼853,001	-13.54%	$1.15Mn
6	Boston Partners	0001386060	4,744,473	4.27%	▲732,241	+18.25%	$1.00Bn
7	Jpmorgan Chase & Co	0000019617	3,520,438	3.17%	▼326,018	-8.48%	$748.59Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	3,137,873	2.83%	▲51,565	+1.67%	$662.58Mn
9	Morgan Stanley	0000895421	2,460,497	2.22%	▼19,223	-0.78%	$521.50Mn
10	EdgePoint Investment Group Inc.	0001481669	2,247,568	2.02%	▲3,699	+0.16%	$476.37Mn
11	DIMENSIONAL FUND ADVISORS LP	0000354204	1,988,048	1.79%	▲38,513	+1.98%	$421.38Mn
12	Bank Of America Corp /De/	0000070858	1,935,133	1.74%	▲182,231	+10.40%	$410.15Mn
13	Grantham, Mayo, Van Otterloo & Co. LLC	0001352662	1,888,207	1.70%	▲5,183	+0.28%	$400.21Mn
14	Wells Fargo & Company/Mn	0000072971	1,751,220	1.58%	▼11,549	-0.66%	$371.17Mn
15	DAVIS SELECTED ADVISERS	0001036325	1,555,612	1.40%	▼62,201	-3.84%	$329.78Mn
16	VICTORY CAPITAL MANAGEMENT INC	0001040188	1,550,556	1.40%	▼295,780	-16.02%	$328.64Mn
17	NORGES BANK	0001374170	1,406,620	1.27%	▲1,406,620	0.00%	$298.13Mn
18	FMR LLC	0000315066	1,398,735	1.26%	▲456,517	+48.45%	$296.46Mn
19	Invesco Ltd.	0000914208	1,379,115	1.24%	▼259,372	-15.83%	$292.30Mn
20	Northern Trust Corp	0000073124	1,127,454	1.02%	▲13,235	+1.19%	$238.96Mn

Showing 1 to 20 of 1,096 holders