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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
TPSF
1001
Texas Permanent School Fund
Texas
RPI
1002
Railway Pension Investments
United Kingdom
AIM
1003
Aigen Investment Management
New York
BIP
1004
Brandes Investment Partners
California
GCP
1005
GSA Capital Partners
United Kingdom
NICM
1006
Neo Ivy Capital Management
New York
CM
1007
Caption Management
Oklahoma
EAM
1008
Erste Asset Management
Austria
Group One Trading
1009
Group One Trading
Illinois
CC
1010
Centiva Capital
New York
KFC
1011
Klingenstein Fields & Co
New York
UFF
1012
USA Financial Formulas
Michigan
FC
1013
Farringdon Capital
United Kingdom
Parallax Volatility Advisers
1014
Parallax Volatility Advisers
California
VSQM
1015
V-Square Quantitative Management
Illinois
P
1016
Pitcairn
Pennsylvania
ACA
1017
Aptus Capital Advisors
Alabama
BOTPPF
1018
Board of the Pension Protection Fund
United Kingdom
FIM
1019
Freedom Investment Management
Connecticut
WorldQuant Millennium Advisors
1020
WorldQuant Millennium Advisors
New York
MIM
1021
Morningstar Investment Management
Illinois
Axa
1022
Axa
France
MPM
1023
MBB Public Markets
Illinois
NW
1024
NewEdge Wealth
Pennsylvania
CA
1025
Claro Advisors
Massachusetts