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Quest Diagnostics

1,061 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 349 increasing their positions, 380 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

1% more funds holding

Funds holding: 1,0471,061 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 380

2.22% less ownership

Funds ownership: 95.54%93.32% (-2.2%)

Holders
1,061
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$96.9M
Puts
$40.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
SEI Investments
126
SEI Investments
Pennsylvania
$15.6M
EB
127
Eastern Bank
Massachusetts
$15.3M
CA
128
CSM Advisors
Pennsylvania
$15M
PR
129
Payden & Rygel
California
$15M
Mitsubishi UFJ Trust & Banking
130
Mitsubishi UFJ Trust & Banking
Japan
$15M
AAIS
131
ABN AMRO Investment Solutions
$15M
State of Wisconsin Investment Board
132
State of Wisconsin Investment Board
Wisconsin
$14.4M
CIBC Asset Management
133
CIBC Asset Management
Ontario, Canada
$14.3M
P
134
Paradiem
Louisiana
$14M
DB
135
Danske Bank
Denmark
$13.7M
HW
136
Hancock Whitney
Mississippi
$13.3M
JWM
137
JGP Wealth Management
Oregon
$13.2M
Ohio Public Employees Retirement System (OPERS)
138
Ohio Public Employees Retirement System (OPERS)
Ohio
$13.1M
Nordea Investment Management
139
Nordea Investment Management
Sweden
$12.9M
BCM
140
Becker Capital Management
Oregon
$12.3M
FNBOO
141
First National Bank of Omaha
Nebraska
$11.9M
HighTower Advisors
142
HighTower Advisors
Illinois
$11.8M
IHAM
143
Integral Health Asset Management
New York
$11.8M
EWA
144
Exencial Wealth Advisors
Oklahoma
$11.6M
TD Asset Management
145
TD Asset Management
Ontario, Canada
$11.3M
KBC Group
146
KBC Group
Belgium
$11.3M
VIA
147
Vanguard Investments Australia
Australia
$10.9M
Prudential Financial
148
Prudential Financial
New Jersey
$10.9M
Canada Pension Plan Investment Board
149
Canada Pension Plan Investment Board
Ontario, Canada
$10.8M
Korea Investment Corp
150
Korea Investment Corp
South Korea
$10.4M