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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
SAM
426
Securian Asset Management
Minnesota
$1M
DIM
427
DLK Investment Management
California
$1M
Capstone Investment Advisors
428
Capstone Investment Advisors
New York
$993K
DILIC
429
Dai-ichi Life Insurance Company
Japan
$990K
IMCOOI
430
Investment Management Corp of Ontario (IMCO)
Canada
$989K
GGS
431
Galvin Gaustad & Stein
Arizona
$983K
VA
432
Vident Advisory
Georgia
$969K
LGA
433
Lebenthal Global Advisors
New York
$959K
TRCT
434
Tower Research Capital (TRC)
New York
$956K
QI
435
Qtron Investments
Massachusetts
$951K
CC
436
Courier Capital
New York
$942K
MCP
437
Martin Capital Partners
Oregon
$938K
AC
438
Allstate Corporation
Illinois
$934K
AWM
439
Axxcess Wealth Management
California
$929K
AWA
440
Arkadios Wealth Advisors
Georgia
$928K
WAM
441
Wolverine Asset Management
Illinois
$912K
AC
442
Avestar Capital
New York
$911K
N
443
Natixis
France
$907K
FCBT
444
First Citizens Bank & Trust
North Carolina
$902K
OIA
445
OneDigital Investment Advisors
Kansas
$901K
CIM
446
Contravisory Investment Management
Massachusetts
$882K
FT
447
Fiduciary Trust
Massachusetts
$880K
WB
448
WesBanco Bank
West Virginia
$877K
FDCDDQ
449
Federation des caisses Desjardins du Quebec
Quebec, Canada
$877K
NFG
450
Nations Financial Group
Iowa
$875K