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

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 Holding Trade Value Shares
Change 		Shares
Change %
National Bank of Canada
101
National Bank of Canada
Quebec, Canada
$18.4M +$4.91M +27,330 +36%
CA
102
CSM Advisors
Pennsylvania
$18.3M +$18.3M +101,747 New
MT
103
Midwest Trust
Kansas
$18M +$18M +100,264 New
AAIS
104
ABN AMRO Investment Solutions
$17.3M +$2.27M +12,635 +15%
SIC
105
Schwartz Investment Counsel
Michigan
$17.2M – – –
DCP
106
Distillate Capital Partners
Illinois
$16.8M -$822K -4,577 -5%
PR
107
Payden & Rygel
California
$16.8M +$16.8M +93,600 New
Chevy Chase Trust
108
Chevy Chase Trust
Maryland
$16.7M -$3.48M -19,387 -17%
AAB
109
ABN AMRO Bank
Netherlands
$16.5M +$946K +5,234 +6%
GIM
110
Glenmede Investment Management
Pennsylvania
$16.5M +$16.5M +91,676 New
William Blair & Company
111
William Blair & Company
Illinois
$16.4M +$6.93M +38,588 +73%
P
112
&Partners
Tennessee
$16.1M +$11.5M +64,095 +251%
State of Wisconsin Investment Board
113
State of Wisconsin Investment Board
Wisconsin
$16.1M -$315K -1,755 -2%
Aviva
114
Aviva
United Kingdom
$16.1M +$999K +5,562 +7%
CM
115
Churchill Management
California
$16M +$70.6K +393 +0.4%
Russell Investments Group
116
Russell Investments Group
United Kingdom
$15.9M +$4.62M +25,768 +41%
QCM
117
QRG Capital Management
Illinois
$15.6M +$1.98M +11,008 +15%
New York State Teachers Retirement System (NYSTRS)
118
New York State Teachers Retirement System (NYSTRS)
New York
$15.5M +$6.83K +38 +0%
Swedbank
119
Swedbank
Sweden
$15.2M – – –
Mercer Global Advisors
120
Mercer Global Advisors
Colorado
$15.2M +$1.9M +10,591 +14%
BTW
121
Boston Trust Walden
Massachusetts
$14.8M -$378K -2,105 -2%
JWM
122
JGP Wealth Management
Oregon
$14.8M -$110K -615 -0.7%
AGP
123
Artia Global Partners
Florida
$14.7M +$4.49M +25,000 +44%
CIBC Asset Management
124
CIBC Asset Management
Ontario, Canada
$14.5M +$2.13M +11,883 +17%
Mitsubishi UFJ Trust & Banking
125
Mitsubishi UFJ Trust & Banking
Japan
$14.2M -$14.2K -79 -0.1%
3 4
5
6 7