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Quest Diagnostics

1,048 hedge funds and large institutions have $18.4B invested in Quest Diagnostics in 2025 Q4 according to their latest regulatory filings, with 148 funds opening new positions, 350 increasing their positions, 345 reducing their positions, and 90 closing their positions.

New
Increased
Maintained
Reduced
Closed

64% more first-time investments, than exits

New positions opened: 148 | Existing positions closed: 90

30% more call options, than puts

Call options by funds: $74.8M | Put options by funds: $57.4M

4% more funds holding

Funds holding: 1,0051,048 (+43)

1.7% more ownership

Funds ownership: 93.86%95.55% (+1.7%)

1% more repeat investments, than reductions

Existing positions increased: 350 | Existing positions reduced: 345

8% less capital invested

Capital invested by funds: $20B → $18.4B (-$1.56B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
1,048
Holders Change
+43
Holders Change %
+4.28%
% of All Funds
12.75%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
148
Increased
350
Reduced
345
Closed
90
Calls
$74.8M
Puts
$57.4M
Net Calls
+$17.5M
Net Calls Change
+$31.2M
Name Holding Trade Value Shares
Change
Change in
Stake
Wellington Management Group
101
Wellington Management Group
Massachusetts
$17.4M -$244M -1,341,737 -93%
National Bank of Canada
102
National Bank of Canada
Quebec, Canada
$17.3M +$7.88M +43,270 +77%
Treasurer of the State of North Carolina
103
Treasurer of the State of North Carolina
North Carolina
$17.1M -$2.76M -15,176 -13%
Mercer Global Advisors
104
Mercer Global Advisors
Colorado
$16.9M +$875K +4,805 +5%
Natixis Advisors
105
Natixis Advisors
Massachusetts
$16.8M -$5.53M -30,362 -24%
State Board of Administration of Florida Retirement System
106
State Board of Administration of Florida Retirement System
Florida
$16.8M
Russell Investments Group
107
Russell Investments Group
United Kingdom
$16.7M -$697K -3,828 -4%
SIC
108
Schwartz Investment Counsel
Michigan
$16.6M
MT
109
Midwest Trust
Kansas
$16.6M +$169K +927 +1%
Aviva
110
Aviva
United Kingdom
$16.5M +$337K +1,852 +2%
Swedbank
111
Swedbank
Sweden
$16.2M +$1.57M +8,605 +10%
PR
112
Payden & Rygel
California
$16.2M -$146K -800 -0.8%
Marshall Wace
113
Marshall Wace
United Kingdom
$16.2M -$84.5M -463,938 -83%
CIBC Asset Management
114
CIBC Asset Management
Ontario, Canada
$16M +$1.91M +10,478 +13%
Manulife (Manufacturers Life Insurance)
115
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$15.8M -$6.68M -36,695 -29%
Canada Pension Plan Investment Board
116
Canada Pension Plan Investment Board
Ontario, Canada
$15.7M +$16.5M +90,700 New
AAMU
117
AEGON Asset Management (UK)
United Kingdom
$15.7M -$5.06M -27,786 -23%
DCP
118
Distillate Capital Partners
Illinois
$15.4M +$16.2M +88,756 New
CA
119
CSM Advisors
Pennsylvania
$15.4M +$1.28M +7,044 +9%
AAB
120
ABN AMRO Bank
Netherlands
$15.4M -$91.6K -503 -0.6%
GT
121
Glenmede Trust
Pennsylvania
$15.4M +$16.1M +88,576 New
New York State Teachers Retirement System (NYSTRS)
122
New York State Teachers Retirement System (NYSTRS)
New York
$15M -$4.37K -24 -0%
Chevy Chase Trust
123
Chevy Chase Trust
Maryland
$14.8M -$281K -1,545 -2%
LPL Financial
124
LPL Financial
California
$14.5M -$369K -2,024 -2%
JWM
125
JGP Wealth Management
Oregon
$14.2M -$121K -662 -0.8%