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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
GIA
2351
GHP Investment Advisors
Colorado
$897
FDCP
2352
Foster Dykema Cabot & Partners
Massachusetts
$857
BIM
2353
Breakwater Investment Management
Washington
$856
LIA
2354
Luken Investment Analytics
Tennessee
$856
APW
2355
Atlantic Private Wealth
North Carolina
$856
QT
2356
Quantbot Technologies
New York
$685
ACM
2357
Anfield Capital Management
California
$685
RJA
2358
Ross\Johnson & Associates
Minnesota
$342
MI
2359
Motiv8 Investments
Florida
$101
CP
2360
Camelot Portfolios
Ohio
$30
DK
2361
DJE Kapital
Germany
TCA
2362
Teewinot Capital Advisers
New York
EF
2363
Empowered Funds
Pennsylvania
AMH
2364
Aspex Management (HK)
Hong Kong
Voloridge Investment Management
2365
Voloridge Investment Management
Florida
SGM
2366
Skye Global Management
Florida
CVA
2367
Ceredex Value Advisors
Florida
TI
2368
Trexquant Investment
Connecticut
SS
2369
Spinecap SAS
France
Hudson Bay Capital Management
2370
Hudson Bay Capital Management
Connecticut
ACM
2371
Aquatic Capital Management
Illinois
VIM
2372
Vinva Investment Management
Australia
OBAM
2373
ODDO BHF Asset Management
France
GH
2374
GAM Holding
Switzerland
SC
2375
SummitTX Capital
Texas