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Quest Diagnostics

990 hedge funds and large institutions have $19.9B invested in Quest Diagnostics in 2025 Q3 according to their latest regulatory filings, with 115 funds opening new positions, 353 increasing their positions, 339 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:

2.45% less ownership

Funds ownership: 96.11%93.66% (-2.5%)

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
990
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
AA
701
Addison Advisors
Vermont
$267K
Caisse de Depot et Placement du Quebec (CDPQ)
702
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$266K
OWA
703
One Wealth Advisors
California
$265K
TE
704
Tema ETFs
New York
$261K
TCOV
705
Trust Company of Vermont
Vermont
$260K
NP
706
NorthRock Partners
Minnesota
$260K
FMLI
707
Fukoku Mutual Life Insurance
Japan
$255K
MGIA
708
Moneta Group Investment Advisors
Missouri
$255K
PCMH
709
Polymer Capital Management (HK)
Hong Kong
$254K
AFG
710
Atomi Financial Group
New York
$253K
HIP
711
HUB Investment Partners
Texas
$251K
VIA
712
Victrix Investment Advisors
Florida
$250K
WW
713
Westshore Wealth
California
$248K
CCM
714
Check Capital Management
California
$248K
HBT
715
Hills Bank & Trust
Iowa
$248K
CAM
716
Claret Asset Management
Quebec, Canada
$246K
HI
717
Harbour Investments
Wisconsin
$245K
TAM
718
Trust Asset Management
Texas
$244K
ZF
719
Zhang Financial
Michigan
$244K
PWM
720
Perigon Wealth Management
California
$243K
PFM
721
Patton Fund Management
Texas
$241K
BAAM
722
Baker Avenue Asset Management
California
$241K
GSEP
723
Golden State Equity Partners
California
$240K
CAL
724
Capital Advisors Ltd
Ohio
$240K
RCM
725
Radnor Capital Management
Pennsylvania
$240K