QUEST DIAGNOSTICS INC

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DGX·74834L100·US·Common Stock·Healthcare - Diagnostics & Research-13D/G

DGX (QUEST DIAGNOSTICS INC) is held by 294 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($2B), VANGUARD CAPITAL MANAGEMENT LLC ($1.5B), VANGUARD PORTFOLIO MANAGEMENT LLC ($1.3B). Net institutional sentiment: Mixed. In Q2 2026, 3 members of Congress and 171 funds bought DGX.

294

Holders

(24 Elite)

$20B

Total Value

57% (299)

Consensus

171 buying - 128 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)28

Insider (Form 4)76

Activist (13D/13G)47

Congressional (STOCK Act)53

Holder Quality

36

★★★★★

Elite

26

★★★★

Strong

44

★★★

Solid

82

★★

Below

59

★

Weak

Held by 294 funds

24 elite

Who's Trading

Source dates: Price Oct 15, 2026 · Insiders Sep 3, 2026 · Activists Aug 14, 2026 · Congress Aug 13, 2026

InsiderDEDavis J. E.Sell $2.4MSep 1, 2026

InsiderPEPREVOZNIK MICHAEL ESell $3.9MAug 28, 2026

InsiderPEPREVOZNIK MICHAEL ESell $105KAug 28, 2026

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Top Holders

Top Holders (294)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	9.3M(+1.1%)	$2B	0.0%	+59.09%	32
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	7.2M(+1.2%)	$1.5B	0.0%	+23.39%	32
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	6.1M(+0.8%)	$1.3B	0.1%	+23.43%	32
STATE STREET CORP	Increased	5.5M(+2.5%)	$1.2B	0.0%	+137.06%	33
PRICE T ROWE ASSOCIATES INC /MD/	Decreased	5.4M(-13.5%)	$1.2B	0.1%	+56.08%	0
Boston Partners	Increased	4.7M(+18.3%)	$1B	0.9%	+34.27%	53
JPMORGAN CHASE & CO	Decreased	3.5M(-8.5%)	$748.6M	0.0%	+52.94%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	3.1M(+1.7%)	$662.6M	0.0%	+134.65%	32
MORGAN STANLEY	Decreased	2.5M(-0.8%)	$521.5M	0.0%	+62.21%	0
EdgePoint Investment Group Inc.	Increased	2.2M(+0.2%)	$476.4M	3.6%	+30.90%	58
DIMENSIONAL FUND ADVISORS LP	Increased	2M(+2.0%)	$421.4M	0.1%	+131.74%	32
BANK OF AMERICA CORP /DE/	Increased	1.9M(+10.4%)	$410.2M	0.0%	+43.95%	34
Grantham, Mayo, Van Otterloo & Co. LLC	Increased	1.9M(+0.3%)	$400.2M	0.9%	+126.90%	44
WELLS FARGO & COMPANY/MN	Decreased	1.8M(-0.7%)	$371.2M	0.1%	+75.63%	0
DAVIS SELECTED ADVISERS	Decreased	1.6M(-3.8%)	$329.8M	1.4%	+112.97%	0
VICTORY CAPITAL MANAGEMENT INC	Decreased	1.6M(-16.0%)	$328.6M	0.2%	+139.89%	0
FMR LLC	Increased	1.4M(+48.5%)	$296.5M	0.0%	+49.83%	42
Invesco Ltd.	Decreased	1.4M(-15.8%)	$292.3M	0.0%	+78.46%	0
NORTHERN TRUST CORP	Increased	1.1M(+1.2%)	$239M	0.0%	+141.19%	31
GOLDMAN SACHS GROUP INC	Decreased	982,694(-27.1%)	$208.3M	0.0%	+51.72%	0

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer