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Quest Diagnostics

982 hedge funds and large institutions have $19.9B invested in Quest Diagnostics in 2025 Q3 according to their latest regulatory filings, with 116 funds opening new positions, 349 increasing their positions, 336 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:

2.35% less ownership

Funds ownership: 95.95%93.6% (-2.4%)

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
982
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
MA
776
Montag & Associates
Georgia
$181K
AUB
777
Atlantic Union Bankshares
Virginia
$181K
CT
778
Clearstead Trust
Maine
$181K
SWM
779
Spire Wealth Management
Virginia
$180K
WSC
780
Wellington Shields & Co
New York
$172K
SAM
781
Smartleaf Asset Management
Massachusetts
$171K
LS
782
Livforsakringsbolaget Skandia
Sweden
$169K
WBC
783
Westpac Banking Corp
Australia
$164K
C
784
Covestor
United Kingdom
$159K
Simplex Trading
785
Simplex Trading
Illinois
$154K
EDRH
786
Edmond de Rothschild Holding
Switzerland
$145K
HFS
787
Hantz Financial Services
Michigan
$145K
GRP
788
Global Retirement Partners
California
$139K
SL
789
Salomon & Ludwin
Virginia
$129K
WSFS
790
Wilmington Savings Fund Society
Delaware
$125K
SSG
791
Summit Securities Group
New York
$116K
CSP
792
Cary Street Partners
Virginia
$115K
OIA
793
Optimum Investment Advisors
Illinois
$114K
CCMW
794
Cypress Capital Management (Wyoming)
Wyoming
$114K
CG
795
Curat Global
New Hampshire
$114K
TFA
796
Transamerica Financial Advisors
Florida
$114K
HWA
797
Heritage Wealth Advisors
Virginia
$112K
GWM
798
Geneos Wealth Management
Colorado
$110K
BBHC
799
Brown Brothers Harriman & Co
New York
$110K
CA
800
CoreCap Advisors
Michigan
$108K