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Lam Research

2,350 hedge funds and large institutions have $183B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 430 funds opening new positions, 763 increasing their positions, 890 reducing their positions, and 122 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

3.54% more ownership

Funds ownership: 80.68%84.23% (+3.5%)

14% less repeat investments, than reductions

Existing positions increased: 763 | Existing positions reduced: 890

29% less call options, than puts

Call options by funds: $4.3B | Put options by funds: $6.04B

Holders
2,350
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
113
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.3B
Puts
$6.04B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
WC
451
Whitney & Co
New York
$15M
PAMP
452
Polar Asset Management Partners
Ontario, Canada
$15M
ERP
453
Eldred Rock Partners
Texas
$15M
LP
454
LMR Partners
United Kingdom
$14.9M
TFA
455
Teamwork Financial Advisors
Texas
$14.7M
GCM
456
Genus Capital Management
British Columbia, Canada
$14.7M
IWS
457
Insight Wealth Strategies
California
$14.6M
ABTD
458
Arvest Bank Trust Division
Oklahoma
$14.6M
OAC
459
OMERS Administration Corp
Ontario, Canada
$14.4M
NG
460
NatWest Group
United Kingdom
$14.3M
MSU
461
Mizuho Securities USA
New York
$14.3M
ETC
462
Exchange Traded Concepts
Oklahoma
$14.3M
ECM
463
ExodusPoint Capital Management
New York
$14.2M
MA
464
McBroom & Associates
Nevada
$14.1M
ACP
465
Aviance Capital Partners
Florida
$14M
HBCM
466
Heron Bay Capital Management
Michigan
$14M
AF
467
Allworth Financial
California
$13.9M
SPIA
468
Steward Partners Investment Advisory
New York
$13.9M
ATPW
469
Ashton Thomas Private Wealth
Arizona
$13.8M
KRS
470
Kentucky Retirement Systems
Kentucky
$13.7M
USCWA
471
U.S. Capital Wealth Advisors
Texas
$13.6M
PMAM
472
Picton Mahoney Asset Management
Ontario, Canada
$13.6M
CBT
473
Central Bank & Trust
Kentucky
$13.6M
VI
474
Vestcor Inc
New Brunswick, Canada
$13.5M
DWM
475
Diversify Wealth Management
Utah
$13.5M