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Lam Research

2,358 hedge funds and large institutions have $183B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 434 funds opening new positions, 764 increasing their positions, 893 reducing their positions, and 125 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:

3.56% more ownership

Funds ownership: 80.69%84.26% (+3.6%)

14% less repeat investments, than reductions

Existing positions increased: 764 | Existing positions reduced: 893

29% less call options, than puts

Call options by funds: $4.3B | Put options by funds: $6.05B

Holders
2,358
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
$6.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
PAMP
451
Polar Asset Management Partners
Ontario, Canada
$15M
ERP
452
Eldred Rock Partners
Texas
$15M
LP
453
LMR Partners
United Kingdom
$14.9M
TFA
454
Teamwork Financial Advisors
Texas
$14.7M
GCM
455
Genus Capital Management
British Columbia, Canada
$14.7M
IWS
456
Insight Wealth Strategies
California
$14.6M
ABTD
457
Arvest Bank Trust Division
Oklahoma
$14.6M
OAC
458
OMERS Administration Corp
Ontario, Canada
$14.4M
NG
459
NatWest Group
United Kingdom
$14.3M
MSU
460
Mizuho Securities USA
New York
$14.3M
ETC
461
Exchange Traded Concepts
Oklahoma
$14.3M
ECM
462
ExodusPoint Capital Management
New York
$14.2M
MA
463
McBroom & Associates
Nevada
$14.1M
ACP
464
Aviance Capital Partners
Florida
$14M
HBCM
465
Heron Bay Capital Management
Michigan
$14M
AF
466
Allworth Financial
California
$13.9M
SPIA
467
Steward Partners Investment Advisory
New York
$13.9M
ATPW
468
Ashton Thomas Private Wealth
Arizona
$13.8M
KRS
469
Kentucky Retirement Systems
Kentucky
$13.7M
USCWA
470
U.S. Capital Wealth Advisors
Texas
$13.6M
PMAM
471
Picton Mahoney Asset Management
Ontario, Canada
$13.6M
CBT
472
Central Bank & Trust
Kentucky
$13.6M
VI
473
Vestcor Inc
New Brunswick, Canada
$13.5M
DWM
474
Diversify Wealth Management
Utah
$13.5M
RCMU
475
Rokos Capital Management (UK)
United Kingdom
$13.4M