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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
MWM
426
Modern Wealth Management
Kansas
$1.05M
QIM
427
Quantitative Investment Management
Virginia
$1.03M
CCIA
428
Campbell & Co Investment Adviser
Maryland
$1.01M
SAM
429
Securian Asset Management
Minnesota
$1M
DIM
430
DLK Investment Management
California
$1M
Capstone Investment Advisors
431
Capstone Investment Advisors
New York
$993K
DILIC
432
Dai-ichi Life Insurance Company
Japan
$990K
IMCOOI
433
Investment Management Corp of Ontario (IMCO)
Canada
$989K
GGS
434
Galvin Gaustad & Stein
Arizona
$983K
VA
435
Vident Advisory
Georgia
$969K
LGA
436
Lebenthal Global Advisors
New York
$959K
TRCT
437
Tower Research Capital (TRC)
New York
$956K
NMERB
438
New Mexico Educational Retirement Board
New Mexico
$954K
QI
439
Qtron Investments
Massachusetts
$951K
CC
440
Courier Capital
New York
$942K
MCP
441
Martin Capital Partners
Oregon
$938K
AC
442
Allstate Corporation
Illinois
$934K
AWM
443
Axxcess Wealth Management
California
$929K
AWA
444
Arkadios Wealth Advisors
Georgia
$928K
WAM
445
Wolverine Asset Management
Illinois
$912K
AC
446
Avestar Capital
New York
$911K
N
447
Natixis
France
$907K
FCBT
448
First Citizens Bank & Trust
North Carolina
$902K
OIA
449
OneDigital Investment Advisors
Kansas
$901K
CIM
450
Contravisory Investment Management
Massachusetts
$882K