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Lam Research

1,852 hedge funds and large institutions have $102B invested in Lam Research in 2025 Q2 according to their latest regulatory filings, with 244 funds opening new positions, 734 increasing their positions, 657 reducing their positions, and 133 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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

4% more funds holding

Funds holding: 1,7741,852 (+78)

2.52% more ownership

Funds ownership: 79.65%82.17% (+2.5%)

8% less call options, than puts

Call options by funds: $2.1B | Put options by funds: $2.28B

Holders
1,852
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
47
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.1B
Puts
$2.28B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
ELI
226
Empire Life Investments
Ontario, Canada
$32.7M
TCM
227
Trybe Capital Management
Connecticut
$32.7M
Calamos Advisors
228
Calamos Advisors
Illinois
$32.7M
Wealth Enhancement Advisory Services
229
Wealth Enhancement Advisory Services
Minnesota
$31.8M
A
230
AustralianSuper
Australia
$31.6M
HIC
231
Harbor Island Capital
Massachusetts
$31.6M
BC
232
Burney Company
Virginia
$31.6M
CAG
233
Crestwood Advisors Group
Massachusetts
$31.4M
NCM
234
Nearwater Capital Markets
Ireland
$31.1M
1832 Asset Management
235
1832 Asset Management
Ontario, Canada
$31.1M
Federated Hermes
236
Federated Hermes
Pennsylvania
$30.9M
NRS
237
Neville Rodie & Shaw
New York
$30.6M
COPPSERS
238
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$30.5M
CNB
239
Czech National Bank
Czech Republic
$30.4M
DIA
240
Dana Investment Advisors
Wisconsin
$29.6M
Two Sigma Investments
241
Two Sigma Investments
New York
$29.6M
Daiwa Securities Group
242
Daiwa Securities Group
Japan
$29M
MCP
243
Meridiem Capital Partners
Texas
$28.9M
MIG
244
McGuire Investment Group
Rhode Island
$28.8M
WJWM
245
Williams Jones Wealth Management
New York
$28.7M
Vontobel Holding
246
Vontobel Holding
Switzerland
$28.3M
ACM
247
Aquatic Capital Management
Illinois
$27.7M
ADEF
248
Adams Diversified Equity Fund
Maryland
$27.6M
SSCM
249
Summit Street Capital Management
New York
$27.6M
Rockefeller Capital Management
250
Rockefeller Capital Management
New York
$27.3M