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Quest Diagnostics

990 hedge funds and large institutions have $19.9B invested in Quest Diagnostics in 2025 Q3 according to their latest regulatory filings, with 115 funds opening new positions, 353 increasing their positions, 339 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:

2.45% less ownership

Funds ownership: 96.11%93.66% (-2.5%)

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
990
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
FIA
601
Foundations Investment Advisors
Arizona
$433K
TNB
602
Thomasville National Bank
Georgia
$433K
RLH
603
RD Lewis Holdings
Florida
$430K
RCM
604
Requisite Capital Management
Texas
$429K
QCG
605
Quadrant Capital Group
Ohio
$428K
MC
606
Moors & Cabot
Massachusetts
$424K
CTC
607
Central Trust Company
Missouri
$420K
EFI
608
EHP Funds Inc
Canada
$419K
AAMU
609
APG Asset Management US
New York
$419K
MSE
610
MUFG Securities EMEA
United Kingdom
$408K
SWP
611
Sagespring Wealth Partners
Tennessee
$402K
S
612
SimplyRich
California
$400K
AC
613
AXQ Capital
New Jersey
$394K
CCG
614
Cypress Capital Group
Florida
$390K
FPW
615
Fairvoy Private Wealth
Alabama
$390K
HSA
616
HBK Sorce Advisory
Pennsylvania
$389K
SWM
617
SeaCrest Wealth Management
New York
$388K
DADC
618
D.A. Davidson & Co
Montana
$388K
GWA
619
Gratus Wealth Advisors
Virginia
$387K
HIC
620
Holderness Investments Company
North Carolina
$381K
SF
621
Summit Financial
New Jersey
$379K
LNWWM
622
Laird Norton Wetherby Wealth Management
California
$376K
CB
623
CNB Bank
Pennsylvania
$374K
VT
624
Vise Technologies
New York
$372K
SLA
625
Silver Lake Advisory
Utah
$370K