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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
ZCI
351
Zevenbergen Capital Investments
Washington
$1.76M
AC
352
Arjuna Capital
North Carolina
$1.74M
RC
353
Roundview Capital
New Jersey
$1.74M
ST
354
Somerset Trust
Pennsylvania
$1.73M
GLR
355
Great Lakes Retirement
Ohio
$1.72M
MOS
356
MGO One Seven
Ohio
$1.7M
BAMF
357
BI Asset Management Fondsmaeglerselskab
Denmark
$1.68M
IA
358
Integrity Alliance
Iowa
$1.67M
FAM
359
Fred Alger Management
New York
$1.67M
TRSOTSOK
360
Teachers Retirement System of the State of Kentucky
Kentucky
$1.67M
PCMF
361
Private Capital Management (Florida)
Florida
$1.66M
ECM
362
Everence Capital Management
Indiana
$1.63M
ATPW
363
Ashton Thomas Private Wealth
Arizona
$1.62M
EF
364
Empowered Funds
Pennsylvania
$1.59M
MML Investors Services
365
MML Investors Services
Massachusetts
$1.57M
AV
366
ASR Vermogensbeheer
Netherlands
$1.56M
PCM
367
Parsons Capital Management
Rhode Island
$1.52M
CI
368
CX Institutional
Indiana
$1.51M
CT
369
Caldwell Trust
Florida
$1.49M
CIBC World Market
370
CIBC World Market
Ontario, Canada
$1.48M
MSU
371
Mizuho Securities USA
New York
$1.48M
XT
372
XTX Topco
Cayman Islands
$1.47M
IFU
373
iSAM Funds (UK)
United Kingdom
$1.47M
HNB
374
Hilltop National Bank
Wyoming
$1.46M
AWA
375
Aaron Wealth Advisors
Illinois
$1.45M