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Quest Diagnostics

982 hedge funds and large institutions have $19.9B invested in Quest Diagnostics in 2025 Q3 according to their latest regulatory filings, with 116 funds opening new positions, 349 increasing their positions, 336 reducing their positions, and 83 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.35% less ownership

Funds ownership: 95.95%93.6% (-2.4%)

12% less call options, than puts

Call options by funds: $98.2M | Put options by funds: $112M

25% less funds holding in top 10

Funds holding in top 10: 43 (-1)

Holders
982
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$98.2M
Puts
$112M
Net Calls
Net Calls Change

Top Buyers

1 +$190M
2 +$162M
3 +$82.7M
4
Goldman Sachs
Goldman Sachs
New York
+$79.7M
5
Marshall Wace
Marshall Wace
United Kingdom
+$67.1M

Top Sellers

1 -$116M
2 -$88.7M
3 -$79.3M
4
UBS AM
UBS AM
Illinois
-$60M
5
UBS Group
UBS Group
Switzerland
-$59.9M
Name Holding Trade Value Shares
Change
Change in
Stake
AIM
1026
Avity Investment Management
Connecticut
SI
1027
Scharf Investments
California
SLG
1028
Stanley-Laman Group
Pennsylvania
HNWAG
1029
High Net Worth Advisory Group
Florida
DWM
1030
Dakota Wealth Management
Florida
CGL
1031
Clarius Group LLC
Washington
TIA
1032
Trust Investment Advisors
Indiana
Fisher Asset Management
1033
Fisher Asset Management
Washington
PCP
1034
Perbak Capital Partners
United Kingdom
PCTC
1035
Perkins Coie Trust Company
Washington
MCAI
1036
Members Capital Advisors Inc
Wisconsin
HT
1037
Headlands Technologies
Illinois
OIAM
1038
OFI Invest Asset Management
France
OWA
1039
Opal Wealth Advisors
New York
Bank Julius Baer & Co
1040
Bank Julius Baer & Co
Switzerland
GM
1041
GeoWealth Management
Illinois
RI
1042
Ridgewood Investments
New Jersey
SO
1043
Sierra Ocean
California
LI
1044
Louisbourg Investments
New Brunswick, Canada
TPWA
1045
Twin Peaks Wealth Advisors
California
WA
1046
Whipplewood Advisors
Colorado
NC
1047
NewSquare Capital
Pennsylvania
BA
1048
Bellwether Advisors
Nebraska
BCMLT
1049
Beacon Capital Management LLC (Tennessee)
Tennessee
RAM
1050
Riggs Asset Management
Pennsylvania