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Lam Research

2,335 hedge funds and large institutions have $182B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 419 funds opening new positions, 761 increasing their positions, 888 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:

3.14% more ownership

Funds ownership: 80.68%83.83% (+3.1%)

14% less repeat investments, than reductions

Existing positions increased: 761 | Existing positions reduced: 888

29% less call options, than puts

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

Holders
2,335
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
MSV
201
MN Services Vermogensbeheer
Netherlands
$85.1M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
202
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$85M
FLPIM
203
F.L. Putnam Investment Management
Massachusetts
$83M
TCM
204
Trybe Capital Management
Connecticut
$81.9M
Boston Partners
205
Boston Partners
Massachusetts
$81.8M
AAF
206
Andra AP-fonden
Sweden
$79.2M
Renaissance Technologies
207
Renaissance Technologies
New York
$79.2M
AF
208
Align Financial
Minnesota
$78.7M
Allspring Global Investments
209
Allspring Global Investments
North Carolina
$78.4M
State Farm Mutual Automobile Insurance
210
State Farm Mutual Automobile Insurance
Illinois
$77.9M
CI Investments Inc
211
CI Investments Inc
Ontario, Canada
$77.8M
NW
212
NewEdge Wealth
Pennsylvania
$77.5M
ClearBridge Investments
213
ClearBridge Investments
New York
$77.4M
Commonwealth Equity Services
214
Commonwealth Equity Services
Massachusetts
$77M
NAM
215
Nissay Asset Management
Japan
$75.6M
AIP
216
ARS Investment Partners
New York
$74.5M
ASC
217
Atalanta Sosnoff Capital
New York
$74.5M
State of New Jersey Common Pension Fund D
218
State of New Jersey Common Pension Fund D
New Jersey
$74.1M
MIF
219
Mediolanum International Funds
Ireland
$73.5M
AL
220
Appaloosa LP
New Jersey
$72.8M
FAF
221
Första AP-fonden
Sweden
$72.7M
Wellington Management Group
222
Wellington Management Group
Massachusetts
$71.3M
RAM
223
Resona Asset Management
Japan
$71.1M
PI
224
PineBridge Investments
New York
$70.7M
LF
225
Lansforsakringar Fondforvaltning
Sweden
$70M