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Lam Research

2,350 hedge funds and large institutions have $183B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 430 funds opening new positions, 763 increasing their positions, 890 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:

3.54% more ownership

Funds ownership: 80.68%84.23% (+3.5%)

14% less repeat investments, than reductions

Existing positions increased: 763 | Existing positions reduced: 890

29% less call options, than puts

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

Holders
2,350
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
LSV Asset Management
401
LSV Asset Management
Illinois
$19.1M
FCBT
402
First Citizens Bank & Trust
North Carolina
$19M
William Blair Investment Management
403
William Blair Investment Management
Illinois
$18.9M
YIA
404
YHB Investment Advisors
Connecticut
$18.8M
TCBWMS
405
Texas Capital Bank Wealth Management Services
Texas
$18.8M
WC
406
Winmill & Co
New York
$18.7M
MT
407
Midwest Trust
Kansas
$18.6M
TRCT
408
Tower Research Capital (TRC)
New York
$18.4M
LS
409
Livforsakringsbolaget Skandia
Sweden
$18.4M
CCM
410
Carderock Capital Management
Maryland
$18.1M
NTIC
411
Napean Trading & Investment Company
Singapore
$18.1M
JWM
412
Jackson Wealth Management
Florida
$18.1M
BPC
413
Banque Pictet & Cie
Switzerland
$17.9M
AFA
414
Abacus FCF Advisors
Florida
$17.9M
SAI
415
Systematic Alpha Investments
New Jersey
$17.9M
GIA
416
Gateway Investment Advisers
Ohio
$17.6M
NP
417
Nilsine Partners
Colorado
$17.6M
CCS
418
Concentric Capital Strategies
Connecticut
$17.4M
PL
419
Parkwood LLC
Ohio
$17.4M
Assenagon Asset Management
420
Assenagon Asset Management
Luxembourg
$17.3M
TRSOTSOK
421
Teachers Retirement System of the State of Kentucky
Kentucky
$17.2M
VCM
422
Violich Capital Management
California
$17.2M
DKCM
423
Davidson Kempner Capital Management
New York
$17.1M
RCW
424
Rheos Capital Works
Japan
$17M
LFG
425
Larson Financial Group
Missouri
$16.9M