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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
MC
601
Moors & Cabot
Massachusetts
$424K
CTC
602
Central Trust Company
Missouri
$420K
EFI
603
EHP Funds Inc
Canada
$419K
AAMU
604
APG Asset Management US
New York
$419K
MSE
605
MUFG Securities EMEA
United Kingdom
$408K
SWP
606
Sagespring Wealth Partners
Tennessee
$402K
S
607
SimplyRich
California
$400K
AC
608
AXQ Capital
New Jersey
$394K
CCG
609
Cypress Capital Group
Florida
$390K
FPW
610
Fairvoy Private Wealth
Alabama
$390K
HSA
611
HBK Sorce Advisory
Pennsylvania
$389K
SWM
612
SeaCrest Wealth Management
New York
$388K
DADC
613
D.A. Davidson & Co
Montana
$388K
GWA
614
Gratus Wealth Advisors
Virginia
$387K
HIC
615
Holderness Investments Company
North Carolina
$381K
SF
616
Summit Financial
New Jersey
$379K
LNWWM
617
Laird Norton Wetherby Wealth Management
California
$376K
CB
618
CNB Bank
Pennsylvania
$374K
VT
619
Vise Technologies
New York
$372K
SLA
620
Silver Lake Advisory
Utah
$370K
BPWM
621
BCS Private Wealth Management
New Jersey
$367K
GA
622
Greenspring Advisors
Maryland
$366K
SAM
623
S.A. Mason
Michigan
$362K
FAT
624
First American Trust
California
$362K
MG
625
Mather Group
Illinois
$361K