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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
ABTD
551
Arvest Bank Trust Division
Oklahoma
$12.8M
MCM
552
Marsico Capital Management
Colorado
$12.7M
FMI
553
Factory Mutual Insurance
Massachusetts
$12.7M
MIM
554
Marco Investment Management
Georgia
$12.7M
UB
555
UMB Bank
Missouri
$12.7M
NTIC
556
Napean Trading & Investment Company
Singapore
$12.5M
NMERB
557
New Mexico Educational Retirement Board
New Mexico
$12.4M
CP
558
CenterBook Partners
Connecticut
$12.3M
ECP
559
Elemental Capital Partners
California
$12.3M
FSA
560
Fort Sheridan Advisors
Illinois
$12.1M
MIC
561
Means Investment Company
Maine
$12.1M
FIA
562
Foundations Investment Advisors
Arizona
$12.1M
FFA
563
Farther Finance Advisors
California
$12.1M
AIP
564
Ameritas Investment Partners
Nebraska
$12M
RWM
565
Rockline Wealth Management
New York
$12M
AA
566
Apriem Advisors
California
$12M
EOJOAM
567
E. Ohman J:or Asset Management
Sweden
$11.9M
RC
568
Riposte Capital
New York
$11.8M
HIS
569
Horizon Investment Services
Indiana
$11.7M
DPL
570
Danica Pension Livsforsikrings
$11.7M
HCA
571
Harbour Capital Advisors
Virginia
$11.6M
SFI
572
Siemens Fonds Invest
Germany
$11.5M
EWA
573
EP Wealth Advisors
California
$11.4M
FFM
574
Fisher Funds Management
New Zealand
$11.4M
EIA
575
Emerald Investment Advisers
Pennsylvania
$11.3M