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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
IFU
2401
iSAM Funds (UK)
United Kingdom
SFCL
2402
Strengthening Families & Communities LLC
Massachusetts
GCM
2403
Graham Capital Management
Connecticut
CM
2404
Caption Management
Oklahoma
KOC
2405
Koss-Olinger Consulting
Florida
OC
2406
Optimas Capital
Hong Kong
DACS
2407
Dymon Asia Capital (Singapore)
Singapore
P
2408
Pitcairn
Pennsylvania
OTL
2409
Oak Thistle LLC
New York
OAM
2410
Oxford Asset Management
United Kingdom
EMAM
2411
Encompass More Asset Management
California
T. Rowe Price Investment Management
2412
T. Rowe Price Investment Management
Maryland
DIP
2413
Davis Investment Partners
North Carolina
TC
2414
Tairen Capital
Hong Kong
EAM
2415
Empirical Asset Management
Massachusetts
RCA
2416
Roberts Capital Advisors
Colorado
FCM
2417
Fieldview Capital Management
Michigan
I
2418
InceptionR
California
PC
2419
Panoramic Capital
California
SHGA
2420
Sand Hill Global Advisors
California
SCM
2421
Semanteon Capital Management
Massachusetts
LCM
2422
LVM Capital Management
Michigan
N
2423
Numerai
California
SIP
2424
Stoneridge Investment Partners
Pennsylvania
BMCM
2425
Burns Matteson Capital Management
New York