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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
CIA
576
Concurrent Investment Advisors
Florida
$482K
MBT
577
Montecito Bank & Trust
California
$478K
Man Group
578
Man Group
United Kingdom
$477K
SC
579
Searle & Co
Connecticut
$476K
AA
580
ALPS Advisors
Colorado
$475K
BAM
581
Berkshire Asset Management
Pennsylvania
$475K
IF
582
Intrua Financial
Texas
$474K
IHL
583
Investment House LLC
California
$472K
JWCA
584
J.W. Cole Advisors
Florida
$471K
BPA
585
Beacon Pointe Advisors
California
$470K
GCA
586
Genesee Capital Advisors
New York
$453K
RMAM
587
Raab & Moskowitz Asset Management
New Jersey
$452K
NIM
588
NEOS Investment Management
Connecticut
$448K
FWSM
589
First Wilshire Securities Management
California
$448K
WPC
590
Waters Parkerson & Co
Louisiana
$448K
MYAM
591
Meiji Yasuda Asset Management
Japan
$445K
MMPW
592
Mitchell McLeod Pugh & Williams
Alabama
$445K
BBA
593
Baader Bank Aktiengesellschaft
Germany
$444K
LCWP
594
Legacy Capital Wealth Partners
Arkansas
$442K
CIP
595
Capital Insight Partners
Arizona
$441K
OF
596
Optimize Financial
California
$440K
CFO
597
Callan Family Office
Pennsylvania
$440K
WP
598
WealthShield Partners
North Carolina
$439K
TI
599
TrueMark Investments
Illinois
$439K
FHA
600
Flagship Harbor Advisors
Massachusetts
$434K