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Lam Research

2,334 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, 760 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: 760 | Existing positions reduced: 888

29% less call options, than puts

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

Holders
2,334
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
IFU
2376
iSAM Funds (UK)
United Kingdom
SFCL
2377
Strengthening Families & Communities LLC
Massachusetts
GCM
2378
Graham Capital Management
Connecticut
CM
2379
Caption Management
Oklahoma
KOC
2380
Koss-Olinger Consulting
Florida
OC
2381
Optimas Capital
Hong Kong
DACS
2382
Dymon Asia Capital (Singapore)
Singapore
P
2383
Pitcairn
Pennsylvania
OTL
2384
Oak Thistle LLC
New York
OAM
2385
Oxford Asset Management
United Kingdom
EMAM
2386
Encompass More Asset Management
California
T. Rowe Price Investment Management
2387
T. Rowe Price Investment Management
Maryland
DIP
2388
Davis Investment Partners
North Carolina
TC
2389
Tairen Capital
Hong Kong
EAM
2390
Empirical Asset Management
Massachusetts
RCA
2391
Roberts Capital Advisors
Colorado
FCM
2392
Fieldview Capital Management
Michigan
I
2393
InceptionR
California
PC
2394
Panoramic Capital
California
SHGA
2395
Sand Hill Global Advisors
California
SCM
2396
Semanteon Capital Management
Massachusetts
LCM
2397
LVM Capital Management
Michigan
N
2398
Numerai
California
SIP
2399
Stoneridge Investment Partners
Pennsylvania
BMCM
2400
Burns Matteson Capital Management
New York