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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 %
WA
951
WestEnd Advisors
North Carolina
$719 – – –
IWP
952
IAG Wealth Partners
Wisconsin
$719 – – –
RPA
953
Redwood Park Advisors
California
$719 +$180 +1 +33%
TIM
954
Total Investment Management
Arizona
$719 +$719 +4 New
SC
955
Stephens Consulting
Michigan
$719 +$719 +4 New
T
956
Transce3nd
Texas
$539 – – –
AT
957
Arlington Trust
Alabama
$539 +$539 +3 New
SFCL
958
Strengthening Families & Communities LLC
Massachusetts
$539 +$539 +3 New
HFS
959
Hughes Financial Services
Virginia
$519 +$519 +3 New
CA
960
Crewe Advisors
Utah
$360 – – –
CWM
961
Copia Wealth Management
Oregon
$359 – – –
ACA
962
American Capital Advisory
Idaho
$180 -$180 -1 -50%
LFA
963
LGT Financial Advisors
Texas
$180 +$180 +1 New
IAS
964
IMA Advisory Services
Colorado
$180 +$180 +1 New
CIAS
965
CBIZ Investment Advisory Services
Ohio
$180 +$180 +1 New
Balyasny Asset Management
966
Balyasny Asset Management
Illinois
– -$35.1M -207,256 Closed
Massachusetts Financial Services
967
Massachusetts Financial Services
Massachusetts
– -$26.9M -158,749 Closed
CCM
968
Causeway Capital Management
California
– -$20.4M -120,400 Closed
FCI
969
Financial Counselors Inc
Kansas
– -$16.9M -99,631 Closed
IP
970
Isthmus Partners
Wisconsin
– -$15.2M -89,874 Closed
Adage Capital Partners
971
Adage Capital Partners
Massachusetts
– -$12.3M -72,624 Closed
ATN
972
AMF Tjänstepension
Sweden
– -$7.64M -45,105 Closed
TI
973
Trexquant Investment
Connecticut
– -$6.42M -37,916 Closed
AI
974
Atom Investors
Texas
– -$5.65M -33,374 Closed
CF
975
Corebridge Financial
Texas
– -$4.32M -25,504 Closed
37 38
39
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