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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
VI
401
Versor Investments
New York
$1.22M
TSS
402
Two Sigma Securities
New York
$1.21M
WW
403
Winnow Wealth
Texas
$1.21M
NB
404
Norinchukin Bank
Japan
$1.2M
Nomura Holdings
405
Nomura Holdings
Japan
$1.2M
YP
406
YANKCOM Partnership
South Dakota
$1.19M
GWMR
407
GC Wealth Management RIA
Massachusetts
$1.18M
HCM
408
Highview Capital Management
Illinois
$1.18M
MGP
409
Metis Global Partners
California
$1.18M
NEI
410
Northwest & Ethical Investments
Ontario, Canada
$1.17M
CW
411
CreativeOne Wealth
Kansas
$1.16M
RCA
412
Riverview Capital Advisers
Massachusetts
$1.16M
EWA
413
EverSource Wealth Advisors
Alabama
$1.15M
GPFA
414
Game Plan Financial Advisors
Ohio
$1.14M
PAS
415
Park Avenue Securities
New York
$1.14M
HNB
416
Huntington National Bank
Ohio
$1.13M
LSERS
417
Louisiana State Employees Retirement System
Louisiana
$1.12M
MFG
418
Merit Financial Group
Georgia
$1.12M
GIBU
419
Gulf International Bank (UK)
United Kingdom
$1.11M
MSRPS
420
Maryland State Retirement & Pension System
Maryland
$1.1M
KPPF
421
Klein Pavlis & Peasley Financial
California
$1.1M
BA
422
Bridgewater Associates
Connecticut
$1.08M
Assenagon Asset Management
423
Assenagon Asset Management
Luxembourg
$1.06M
PAG
424
Private Advisor Group
New Jersey
$1.06M
CGH
425
Crossmark Global Holdings
Texas
$1.06M