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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
California State Teachers Retirement System (CalSTRS)
76
California State Teachers Retirement System (CalSTRS)
California
$31.8M
BSA
77
Braun Stacey Associates
New York
$30.7M
CPC
78
Cookson Peirce & Co
Pennsylvania
$30.6M
CCM
79
Copeland Capital Management
Pennsylvania
$30.4M
WIC
80
Willis Investment Counsel
Georgia
$29.7M
Focus Partners Wealth
81
Focus Partners Wealth
Massachusetts
$29.6M
Credit Agricole
82
Credit Agricole
France
$29.1M
D.E. Shaw & Co
83
D.E. Shaw & Co
New York
$29M
SAM
84
Storebrand Asset Management
Norway
$27.5M
SAM
85
SEB Asset Management
$27.4M
AIM
86
Achmea Investment Management
Netherlands
$26.9M
APG Asset Management
87
APG Asset Management
Netherlands
$26.2M
Universal-Beteiligungs- und Servicegesellschaft
88
Universal-Beteiligungs- und Servicegesellschaft
Germany
$25.8M
GAM
89
Gotham Asset Management
New York
$25.6M
Mackenzie Financial
90
Mackenzie Financial
Ontario, Canada
$24.8M
P
91
&Partners
Tennessee
$24M
Franklin Resources
92
Franklin Resources
California
$23.8M
SAM
93
Silvercrest Asset Management
New York
$22.5M
Robeco Institutional Asset Management
94
Robeco Institutional Asset Management
Netherlands
$22M
Stifel Financial
95
Stifel Financial
Missouri
$22M
LPL Financial
96
LPL Financial
California
$21.7M
Aberdeen Group
97
Aberdeen Group
United Kingdom
$21.3M
MWM
98
Moran Wealth Management
Florida
$21.2M
TAM
99
Tocqueville Asset Management
New York
$21.1M
Treasurer of the State of North Carolina
100
Treasurer of the State of North Carolina
North Carolina
$20.7M