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Quest Diagnostics

1,051 hedge funds and large institutions have $20B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 347 increasing their positions, 373 reducing their positions, and 89 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

0% more funds holding

Funds holding: 1,0461,051 (+5)

7% less repeat investments, than reductions

Existing positions increased: 347 | Existing positions reduced: 373

2.74% less ownership

Funds ownership: 95.54%92.8% (-2.7%)

Holders
1,051
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$96.9M
Puts
$40.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Schroder Investment Management Group
51
Schroder Investment Management Group
United Kingdom
$58.2M
Citigroup
52
Citigroup
New York
$56.3M
BNP Paribas Financial Markets
53
BNP Paribas Financial Markets
France
$53M
Sumitomo Mitsui Trust Group
54
Sumitomo Mitsui Trust Group
Japan
$51.9M
RhumbLine Advisers
55
RhumbLine Advisers
Massachusetts
$51.6M
VLKIM
56
Van Lanschot Kempen Investment Management
Netherlands
$50.2M
Mitsubishi UFJ Asset Management
57
Mitsubishi UFJ Asset Management
Japan
$49.3M
VGA
58
Vanguard Global Advisers
Pennsylvania
$47.5M
ECSS
59
Eurizon Capital SGR SpA
$47.2M
Acadian Asset Management
60
Acadian Asset Management
Massachusetts
$46.9M
California Public Employees Retirement System
61
California Public Employees Retirement System
California
$46.6M
CCMG
62
Clark Capital Management Group
Pennsylvania
$46.1M
QCM
63
Quantinno Capital Management
New York
$45.3M
BNP Paribas Asset Management
64
BNP Paribas Asset Management
France
$45.3M
VAM
65
Vanguard Asset Management
$44.4M
SG Americas Securities
66
SG Americas Securities
New York
$42.6M
NAMI
67
Nomura Asset Management International
Pennsylvania
$41.6M
Bank of Montreal
68
Bank of Montreal
Ontario, Canada
$41.2M
Marshall Wace
69
Marshall Wace
United Kingdom
$39.3M
Royal Bank of Canada
70
Royal Bank of Canada
Ontario, Canada
$38.9M
HSBC Holdings
71
HSBC Holdings
United Kingdom
$38.2M
VOYA Investment Management
72
VOYA Investment Management
Georgia
$36.5M
CI
73
Conning Inc
Connecticut
$34.5M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
74
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$33.5M
AP
75
Antipodes Partners
Australia
$31.9M