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Quest Diagnostics
DGX

Overview Fund Activity

952 hedge funds and large institutions have $17.2B invested in Quest Diagnostics in 2025 Q1 according to their latest regulatory filings, with 143 funds opening new positions, 311 increasing their positions, 332 reducing their positions, and 61 closing their positions.

Holders
952
Holders Change
+68
Holders Change %
+7.69%
% of All Funds
12.93%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
143
Increased
311
Reduced
332
Closed
61
Calls
$83.5M
Puts
$136M
Net Calls
-$52.3M
Net Calls Change
-$80.5M

Top Buyers

1
Boston Partners
1
Boston Partners
Massachusetts
$389M
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$638M
3
Nordea Investment Management
3
Nordea Investment Management
Sweden
$213M
4
Neuberger Berman Group
4
Neuberger Berman Group
New York
$108M
5
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$1.01B

Top Sellers

1
Norges Bank
1
Norges Bank
Norway
$0
2
Millennium Management
2
Millennium Management
New York
$2.58M
3
Aberdeen Group
3
Aberdeen Group
United Kingdom
$15M
4
American Century Companies
4
American Century Companies
Missouri
$205M
5
Marshall Wace
5
Marshall Wace
United Kingdom
$81.8M
Name Market Value Shares Shares
Change 		Shares
Change %
Parallax Volatility Advisers
951
Parallax Volatility Advisers
California
$169 1 -14,543 -100%
A
952
AlphaQuest
New York
$169 1 – –
GP
953
Greenline Partners
New York
$169 1 +1 New
Norges Bank
954
Norges Bank
Norway
– – -1,271,528 Closed
IHAM
955
Integral Health Asset Management
New York
– – -130,000 Closed
D.E. Shaw & Co
956
D.E. Shaw & Co
New York
– – -79,369 Closed
WI
957
WBI Investments
New Jersey
– – -27,681 Closed
NICM
958
Neo Ivy Capital Management
New York
– – -24,681 Closed
TC
959
TwinBeech Capital
New York
– – -20,049 Closed
LSV Asset Management
960
LSV Asset Management
Illinois
– – -16,400 Closed
WorldQuant Millennium Advisors
961
WorldQuant Millennium Advisors
New York
– – -14,444 Closed
LCM
962
Landscape Capital Management
New Jersey
– – -12,969 Closed
EMPI
963
Elo Mutual Pension Insurance
Finland
– – -11,975 Closed
BCM
964
Bayesian Capital Management
New York
– – -11,800 Closed
DTL
965
Dynamic Technology Lab
Singapore
– – -10,750 Closed
IC
966
IEQ Capital
California
– – -7,899 Closed
MCA
967
MSH Capital Advisors
Arizona
– – -7,856 Closed
MCP
968
Meridiem Capital Partners
Texas
– – -7,822 Closed
Tudor Investment Corp
969
Tudor Investment Corp
Connecticut
– – -7,608 Closed
SBIA
970
Sheaff Brock Investment Advisors
Indiana
– – -7,125 Closed
Capstone Investment Advisors
971
Capstone Investment Advisors
New York
– – -5,534 Closed
OTPPB
972
Ontario Teachers' Pension Plan Board
Ontario, Canada
– – -3,935 Closed
CC
973
Centiva Capital
New York
– – -3,208 Closed
MWM
974
Maridea Wealth Management
New York
– – -3,099 Closed
BFM
975
Boothbay Fund Management
New York
– – -2,940 Closed
37 38
39
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