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Quest Diagnostics

1,061 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 349 increasing their positions, 380 reducing their positions, and 87 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: $ → $

1% more funds holding

Funds holding: 1,0471,061 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 380

2.22% less ownership

Funds ownership: 95.54%93.32% (-2.2%)

Holders
1,061
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
AP
76
Antipodes Partners
Australia
$31.9M
California State Teachers Retirement System (CalSTRS)
77
California State Teachers Retirement System (CalSTRS)
California
$31.8M
BSA
78
Braun Stacey Associates
New York
$30.7M
CPC
79
Cookson Peirce & Co
Pennsylvania
$30.6M
CCM
80
Copeland Capital Management
Pennsylvania
$30.4M
WIC
81
Willis Investment Counsel
Georgia
$29.7M
Focus Partners Wealth
82
Focus Partners Wealth
Massachusetts
$29.6M
Credit Agricole
83
Credit Agricole
France
$29.1M
D.E. Shaw & Co
84
D.E. Shaw & Co
New York
$29M
SAM
85
Storebrand Asset Management
Norway
$27.5M
SAM
86
SEB Asset Management
$27.4M
AIM
87
Achmea Investment Management
Netherlands
$26.9M
APG Asset Management
88
APG Asset Management
Netherlands
$26.2M
Universal-Beteiligungs- und Servicegesellschaft
89
Universal-Beteiligungs- und Servicegesellschaft
Germany
$25.8M
GAM
90
Gotham Asset Management
New York
$25.6M
Mackenzie Financial
91
Mackenzie Financial
Ontario, Canada
$24.8M
P
92
&Partners
Tennessee
$24M
Franklin Resources
93
Franklin Resources
California
$23.8M
SAM
94
Silvercrest Asset Management
New York
$22.5M
Robeco Institutional Asset Management
95
Robeco Institutional Asset Management
Netherlands
$22M
Stifel Financial
96
Stifel Financial
Missouri
$22M
LPL Financial
97
LPL Financial
California
$21.7M
Aberdeen Group
98
Aberdeen Group
United Kingdom
$21.3M
MWM
99
Moran Wealth Management
Florida
$21.2M
TAM
100
Tocqueville Asset Management
New York
$21.1M