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Quest Diagnostics
DGX

Overview Fund Activity

965 hedge funds and large institutions have $19.2B invested in Quest Diagnostics in 2025 Q2 according to their latest regulatory filings, with 117 funds opening new positions, 358 increasing their positions, 323 reducing their positions, and 83 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
965
Holders Change
+13
Holders Change %
+1.37%
% of All Funds
12.94%
Holding in Top 10
4
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+300%
% of All Funds
0.05%
New
117
Increased
358
Reduced
323
Closed
83
Calls
$88.3M
Puts
$133M
Net Calls
-$44.5M
Net Calls Change
+$7.83M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$1.29B
2
MGP
M&G plc
United Kingdom
$193M
3
Boston Partners
Boston Partners
Massachusetts
$545M
4
Squarepoint
Squarepoint
New York
$151M
5
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$778M

Top Sellers

1
DSA
Davis Selected Advisers
Arizona
$243M
2
Nordea Investment Management
Nordea Investment Management
Sweden
$40.5M
3
American Century Companies
American Century Companies
Missouri
$143M
4
Victory Capital Management
Victory Capital Management
Texas
$505M
5
Marshall Wace
Marshall Wace
United Kingdom
$36.8M
Name Holding Trade Value Shares
Change 		Shares
Change %
LC
826
Luminist Capital
Michigan
$33.9K – – –
MA
827
MCF Advisors
Kentucky
$33.6K – – –
A
828
AlphaQuest
New York
$33.2K +$33.1K +184 +18,400%
ADL
829
Asset Dedication LLC
California
$33.1K – – –
BGAI
830
Bruce G. Allen Investments
Colorado
$32.5K -$359 -2 -1%
PWS
831
Peterson Wealth Services
Utah
$32.3K – – –
FPF
832
First Pacific Financial
Washington
$31.6K – – –
GC
833
Gould Capital
Washington
$30.7K – – –
PFBT
834
Parkside Financial Bank & Trust
Missouri
$29.8K +$2.16K +12 +8%
MIM
835
MTM Investment Management
South Carolina
$28.7K +$28.7K +160 New
PB
836
Pinnacle Bancorp
Nebraska
$27.3K +$15.3K +85 +127%
WA
837
WPG Advisers
Maryland
$27.1K +$2.34K +13 +9%
TFIPS
838
Towarzystwo Funduszy Inwestycyjnych PZU SA
$26.9K – – –
MEG
839
Millstone Evans Group
Colorado
$26.6K – – –
CFO
840
CVA Family Office
Colorado
$25.3K -$4.13K -23 -14%
AA
841
Ancora Advisors
Ohio
$24.5K +$3.94K +22 +19%
LI
842
Louisbourg Investments
New Brunswick, Canada
$24.4K +$24.4K +136 New
SPF
843
South Plains Financial
Texas
$23.7K +$17.6K +98 +288%
DIP
844
DT Investment Partners
Pennsylvania
$23.5K – – –
GKIM
845
GW&K Investment Management
Massachusetts
$23K +$9.16K +51 +66%
GBT
846
Grove Bank & Trust
Florida
$21.9K +$2.52K +14 +13%
TH
847
TCTC Holdings
Texas
$21.7K – – –
JFGIW
848
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$21.2K +$5.39K +30 +34%
TPWA
849
Twin Peaks Wealth Advisors
California
$20.9K +$20.9K +117 New
RF
850
Rossby Financial
Florida
$20.8K – – –
32 33
34
35 36