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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
MIM
376
Miller Investment Management
Pennsylvania
$1.45M
MAM
377
Madison Asset Management
Wisconsin
$1.44M
OSAM
378
O'Shaughnessy Asset Management
Connecticut
$1.44M
NIM
379
Needham Investment Management
New York
$1.43M
AF
380
AGP Franklin
Tennessee
$1.42M
CCB
381
Country Club Bank
Missouri
$1.42M
Brown Advisory
382
Brown Advisory
Maryland
$1.38M
CAM
383
Cresset Asset Management
Illinois
$1.36M
KRS
384
Kentucky Retirement Systems
Kentucky
$1.33M
HAG
385
HighPoint Advisor Group
Illinois
$1.33M
BDA
386
Borer Denton & Associates
Pennsylvania
$1.32M
SCM
387
Sterling Capital Management
North Carolina
$1.31M
BEI
388
Benjamin Edwards Inc
Missouri
$1.31M
BAM
389
Byrne Asset Management
New Jersey
$1.31M
AWM
390
Apollon Wealth Management
South Carolina
$1.28M
BMSSC
391
B. Metzler seel. Sohn & Co
Germany
$1.28M
ETC
392
Exchange Traded Concepts
Oklahoma
$1.28M
HIMCH
393
Hartford Investment Management Co (HIMCO)
Connecticut
$1.26M
EGM
394
Engineers Gate Manager
New York
$1.25M
HWAM
395
Hennion & Walsh Asset Management
New Jersey
$1.25M
A
396
AlphaQuest
New York
$1.23M
HI
397
Humankind Investments
New York
$1.23M
VI
398
Versor Investments
New York
$1.22M
TSS
399
Two Sigma Securities
New York
$1.21M
WW
400
Winnow Wealth
Texas
$1.21M