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Quest Diagnostics
DGX

Overview Fund Activity

961 hedge funds and large institutions have $19.1B invested in Quest Diagnostics in 2025 Q2 according to their latest regulatory filings, with 117 funds opening new positions, 355 increasing their positions, 322 reducing their positions, and 83 closing their positions.

Holders
961
Holders Change
+9
Holders Change %
+0.95%
% of All Funds
12.91%
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
355
Reduced
322
Closed
83
Calls
$58.9M
Puts
$92.6M
Net Calls
-$33.7M
Net Calls Change
+$18.6M

Top Buyers

1
Norges Bank
1
Norges Bank
Norway
$238M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$1.29B
3
MGP
3
M&G plc
United Kingdom
$193M
4
Boston Partners
4
Boston Partners
Massachusetts
$545M
5
Squarepoint
5
Squarepoint
New York
$151M

Top Sellers

1
DSA
1
Davis Selected Advisers
Arizona
$243M
2
Nordea Investment Management
2
Nordea Investment Management
Sweden
$40.5M
3
American Century Companies
3
American Century Companies
Missouri
$143M
4
Victory Capital Management
4
Victory Capital Management
Texas
$505M
5
Marshall Wace
5
Marshall Wace
United Kingdom
$36.8M
Name Market Value Shares Shares
Change 		Shares
Change %
SC
951
Stephens Consulting
Michigan
$719 4 +4 New
T
952
Transce3nd
Texas
$539 3 – –
AT
953
Arlington Trust
Alabama
$539 3 +3 New
SFCL
954
Strengthening Families & Communities LLC
Massachusetts
$539 3 +3 New
HFS
955
Hughes Financial Services
Virginia
$519 3 +3 New
CA
956
Crewe Advisors
Utah
$360 2 – –
CWM
957
Copia Wealth Management
Oregon
$359 2 – –
ACA
958
American Capital Advisory
Idaho
$180 1 -1 -50%
IAS
959
IMA Advisory Services
Colorado
$180 1 +1 New
CIAS
960
CBIZ Investment Advisory Services
Ohio
$180 1 +1 New
LFA
961
LGT Financial Advisors
Texas
$180 1 +1 New
Balyasny Asset Management
962
Balyasny Asset Management
Illinois
– – -207,256 Closed
Massachusetts Financial Services
963
Massachusetts Financial Services
Massachusetts
– – -158,749 Closed
CCM
964
Causeway Capital Management
California
– – -120,400 Closed
FCI
965
Financial Counselors Inc
Kansas
– – -99,631 Closed
IP
966
Isthmus Partners
Wisconsin
– – -89,874 Closed
Adage Capital Partners
967
Adage Capital Partners
Massachusetts
– – -72,624 Closed
ATN
968
AMF Tjänstepension
Sweden
– – -45,105 Closed
TI
969
Trexquant Investment
Connecticut
– – -37,916 Closed
AI
970
Atom Investors
Texas
– – -33,374 Closed
CF
971
Corebridge Financial
Texas
– – -25,504 Closed
PI
972
PGGM Investments
Netherlands
– – -25,230 Closed
LA
973
LBP AM
France
– – -21,632 Closed
SCM
974
Sandler Capital Management
New York
– – -19,993 Closed
PEAK6
975
PEAK6
Illinois
– – -19,310 Closed
37 38
39
40 41