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Lam Research

2,621 hedge funds and large institutions have $216B invested in Lam Research in 2026 Q1 according to their latest regulatory filings, with 394 funds opening new positions, 894 increasing their positions, 1,068 reducing their positions, and 105 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:

5% less call options, than puts

Call options by funds: $4.46B | Put options by funds: $4.68B

2.86% less ownership

Funds ownership: 83.87%81.01% (-2.9%)

16% less repeat investments, than reductions

Existing positions increased: 894 | Existing positions reduced: 1,068

Holders
2,621
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
140
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.46B
Puts
$4.68B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
MIG
2626
Mariner Investment Group
New York
Pacer Advisors
2627
Pacer Advisors
Pennsylvania
MC
2628
Maverick Capital
Texas
FAF
2629
Första AP-fonden
Sweden
TFP
2630
Triple Frond Partners
California
CFC
2631
Cincinnati Financial Corp
Ohio
CCM
2632
CloudAlpha Capital Management
Hong Kong
DKCM
2633
Davidson Kempner Capital Management
New York
RAM
2634
Robinhood Asset Management
California
Optiver Holding
2635
Optiver Holding
Netherlands
JGC
2636
J. Goldman & Co
New York
BWM
2637
BNC Wealth Management
Oregon
EC
2638
E20 Capital
GFG
2639
Genesis Financial Group
New Jersey
CSUI
2640
Cincinnati Specialty Underwriters Insurance
Ohio
ET
2641
Entropy Technologies
New York
Group One Trading
2642
Group One Trading
Illinois
JWCA
2643
J.W. Cole Advisors
Florida
GCM
2644
Gunderson Capital Management
South Carolina
ONGA
2645
O'Neil Global Advisors
California
CA
2646
Cornerstone Advisors
North Carolina
PS
2647
Pensionfund Sabic
Netherlands
VWM
2648
Vivid Wealth Management
Iowa
SP
2649
Sherman Porfolios
Idaho
FGP
2650
Foyston, Gordon, & Payne
Ontario, Canada