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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
AIM
626
AXA Investment Managers
France
$358K
NAM
627
NorthCrest Asset Manangement
Minnesota
$358K
CFS
628
Commonwealth Financial Services
West Virginia
$357K
OKSA
629
O'Keefe Stevens Advisory
New York
$357K
PI
630
PFG Investments
New York
$356K
HIMS
631
Hager Investment Management Services
New Hampshire
$353K
FSA
632
Franklin Street Advisors
North Carolina
$350K
Koshinski Asset Management
633
Koshinski Asset Management
Illinois
$350K
TC
634
Truvestments Capital
Florida
$350K
CI Investments Inc
635
CI Investments Inc
Ontario, Canada
$348K
MFAM
636
Motley Fool Asset Management
Virginia
$347K
SCM
637
Schnieders Capital Management
California
$346K
WCM
638
Washington Capital Management
Washington
$344K
GFP
639
Gryphon Financial Partners
Ohio
$341K
EWM
640
Evercore Wealth Management
New York
$340K
ACM
641
Avalon Capital Management
California
$337K
DWT
642
Dorsey & Whitney Trust
South Dakota
$335K
LG
643
Lane Generational
Massachusetts
$332K
LFA
644
Legacy Financial Advisors
Kentucky
$330K
RWA
645
River Wealth Advisors
Pennsylvania
$328K
NAS
646
Nicolet Advisory Services
Wisconsin
$327K
BI
647
Ballast Inc
Kentucky
$326K
BTI
648
Blue Trust Inc
Georgia
$326K
RFC
649
Regions Financial Corp
Alabama
$325K
GF
650
Gabelli Funds
New York
$324K