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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
AT
801
Adelphi Trust
Florida
$205K
LAM
802
Longboard Asset Management
Arizona
$203K
ST
803
Smithfield Trust
Pennsylvania
$199K
PIMJS
804
PKO Investment Management Joint-Stock
Poland
$196K
GWP
805
Gen-Wealth Partners
Michigan
$189K
Group One Trading
806
Group One Trading
Illinois
$188K
MA
807
Montag & Associates
Georgia
$186K
CT
808
Clearstead Trust
Maine
$184K
AUB
809
Atlantic Union Bankshares
Virginia
$184K
WSC
810
Wellington Shields & Co
New York
$183K
KFAS
811
Keating Financial Advisory Services
Kansas
$182K
VCM
812
Versant Capital Management
Arizona
$181K
HFS
813
Hantz Financial Services
Michigan
$180K
LS
814
Livforsakringsbolaget Skandia
Sweden
$174K
SWM
815
Spire Wealth Management
Virginia
$170K
CA
816
Clearstead Advisors
Ohio
$164K
SIC
817
Salem Investment Counselors
North Carolina
$160K
GWM
818
Geneos Wealth Management
Colorado
$159K
RF
819
Rossby Financial
Florida
$147K
AF
820
Advisornet Financial
Minnesota
$142K
AAP
821
Arax Advisory Partners
Colorado
$141K
C
822
Covestor
United Kingdom
$140K
SL
823
Salomon & Ludwin
Virginia
$139K
HI
824
Harbour Investments
Wisconsin
$137K
SMBT
825
Southern Michigan Bank & Trust
Michigan
$134K