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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
MGIA
701
Moneta Group Investment Advisors
Missouri
$255K
PCMH
702
Polymer Capital Management (HK)
Hong Kong
$254K
AFG
703
Atomi Financial Group
New York
$253K
HIP
704
HUB Investment Partners
Texas
$251K
VIA
705
Victrix Investment Advisors
Florida
$250K
WW
706
Westshore Wealth
California
$248K
CCM
707
Check Capital Management
California
$248K
HBT
708
Hills Bank & Trust
Iowa
$248K
CAM
709
Claret Asset Management
Quebec, Canada
$246K
HI
710
Harbour Investments
Wisconsin
$245K
TAM
711
Trust Asset Management
Texas
$244K
ZF
712
Zhang Financial
Michigan
$244K
PWM
713
Perigon Wealth Management
California
$243K
PFM
714
Patton Fund Management
Texas
$241K
BAAM
715
Baker Avenue Asset Management
California
$241K
GSEP
716
Golden State Equity Partners
California
$240K
CAL
717
Capital Advisors Ltd
Ohio
$240K
RCM
718
Radnor Capital Management
Pennsylvania
$240K
HCM
719
Howard Capital Management
Georgia
$240K
CCA
720
Checchi Capital Advisers
California
$239K
SW
721
SteelPeak Wealth
California
$239K
OAM
722
Oppenheimer Asset Management
New York
$238K
MA
723
Mutual Advisors
Nebraska
$238K
CFG
724
Citizens Financial Group
Rhode Island
$237K
BFO
725
Biltmore Family Office
North Carolina
$236K