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Quest Diagnostics

953 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, 312 increasing their positions, 332 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

more ownership

Funds ownership:

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

6% less repeat investments, than reductions

Existing positions increased: 312 | Existing positions reduced: 332

39% less call options, than puts

Call options by funds: $83.5M | Put options by funds: $136M

Holders
953
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$83.5M
Puts
$136M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
State of Wisconsin Investment Board
101
State of Wisconsin Investment Board
Wisconsin
$15.5M
IP
102
Isthmus Partners
Wisconsin
$15.2M
Aberdeen Group
103
Aberdeen Group
United Kingdom
$15M
CM
104
Churchill Management
California
$15M
New York State Teachers Retirement System (NYSTRS)
105
New York State Teachers Retirement System (NYSTRS)
New York
$14.6M
Jane Street
106
Jane Street
New York
$14.5M
AAB
107
ABN AMRO Bank
Netherlands
$14.5M
Swedbank
108
Swedbank
Sweden
$14.4M
BTW
109
Boston Trust Walden
Massachusetts
$14.3M
Aviva
110
Aviva
United Kingdom
$14.2M
AAIS
111
ABN AMRO Investment Solutions
$14.2M
JWM
112
JGP Wealth Management
Oregon
$14M
BGIM
113
Brandywine Global Investment Management
Pennsylvania
$13.7M
Mitsubishi UFJ Trust & Banking
114
Mitsubishi UFJ Trust & Banking
Japan
$13.4M
Credit Agricole
115
Credit Agricole
France
$13M
BNP Paribas Asset Management
116
BNP Paribas Asset Management
France
$13M
QCM
117
QRG Capital Management
Illinois
$12.8M
National Bank of Canada
118
National Bank of Canada
Quebec, Canada
$12.7M
Mercer Global Advisors
119
Mercer Global Advisors
Colorado
$12.5M
Treasurer of the State of North Carolina
120
Treasurer of the State of North Carolina
North Carolina
$12.4M
Adage Capital Partners
121
Adage Capital Partners
Massachusetts
$12.3M
Ohio Public Employees Retirement System (OPERS)
122
Ohio Public Employees Retirement System (OPERS)
Ohio
$12.3M
CIBC Asset Management
123
CIBC Asset Management
Ontario, Canada
$11.7M
CI
124
Cambiar Investors
Colorado
$11.6M
PP
125
Prudential plc
United Kingdom
$11.4M