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Quest Diagnostics

1,062 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, 381 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

139% more call options, than puts

Call options by funds: $96.9M | Put options by funds: $40.5M

100% more funds holding in top 10

Funds holding in top 10: 24 (+2)

39% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 87

9% more capital invested

Capital invested by funds: $18.4B → $20.1B (+$1.67B)

1% more funds holding

Funds holding: 1,0481,062 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 381

2.22% less ownership

Funds ownership: 95.55%93.33% (-2.2%)

Holders
1,062
Holders Change
+14
Holders Change %
+1.34%
% of All Funds
13.08%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
121
Increased
349
Reduced
381
Closed
87
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M
Name Holding Trade Value Shares
Change
Change in
Stake
SEI Investments
126
SEI Investments
Pennsylvania
$15.6M +$1.56M +8,025 +11%
EB
127
Eastern Bank
Massachusetts
$15.3M +$12.9M +66,183 +560%
CA
128
CSM Advisors
Pennsylvania
$15M -$2.33M -11,999 -14%
PR
129
Payden & Rygel
California
$15M -$3.26M -16,800 -18%
Mitsubishi UFJ Trust & Banking
130
Mitsubishi UFJ Trust & Banking
Japan
$15M -$217K -1,115 -1%
AAIS
131
ABN AMRO Investment Solutions
$15M +$796K +4,098 +6%
State of Wisconsin Investment Board
132
State of Wisconsin Investment Board
Wisconsin
$14.4M -$566K -2,914 -4%
CIBC Asset Management
133
CIBC Asset Management
Ontario, Canada
$14.3M -$3.74M -19,232 -21%
P
134
Paradiem
Louisiana
$14M -$1.4M -7,190 -9%
DB
135
Danske Bank
Denmark
$13.7M -$1.01M -5,200 -7%
HW
136
Hancock Whitney
Mississippi
$13.3M -$61K -314 -0.5%
JWM
137
JGP Wealth Management
Oregon
$13.2M -$2.72M -13,995 -17%
Ohio Public Employees Retirement System (OPERS)
138
Ohio Public Employees Retirement System (OPERS)
Ohio
$13.1M +$468K +2,407 +4%
Nordea Investment Management
139
Nordea Investment Management
Sweden
$12.9M +$472K +2,429 +4%
BCM
140
Becker Capital Management
Oregon
$12.3M +$133K +683 +1%
FNBOO
141
First National Bank of Omaha
Nebraska
$11.9M +$96.2K +495 +0.8%
HighTower Advisors
142
HighTower Advisors
Illinois
$11.8M +$3.63M +18,667 +45%
IHAM
143
Integral Health Asset Management
New York
$11.8M -$2.91M -15,000 -20%
EWA
144
Exencial Wealth Advisors
Oklahoma
$11.6M -$556K -2,860 -5%
TD Asset Management
145
TD Asset Management
Ontario, Canada
$11.3M +$508K +2,617 +5%
KBC Group
146
KBC Group
Belgium
$11.3M +$243K +1,249 +2%
VIA
147
Vanguard Investments Australia
Australia
$10.9M +$10.8M +55,689 New
Prudential Financial
148
Prudential Financial
New Jersey
$10.9M -$130K -671 -1%
Canada Pension Plan Investment Board
149
Canada Pension Plan Investment Board
Ontario, Canada
$10.8M -$6.88M -35,400 -39%
Korea Investment Corp
150
Korea Investment Corp
South Korea
$10.4M +$1.57M +8,100 +18%