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Lam Research

1,775 hedge funds and large institutions have $74.2B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 270 funds opening new positions, 727 increasing their positions, 541 reducing their positions, and 138 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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

4% more call options, than puts

Call options by funds: $1.79B | Put options by funds: $1.72B

0.45% less ownership

Funds ownership: 80.1%79.65% (-0.45%)

0% less capital invested

Capital invested by funds: $74.6B → $74.2B (-$361M)

Holders
1,775
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.79B
Puts
$1.72B
Net Calls
Net Calls Change

Top Buyers

1 +$608M
2 +$587M
3 +$562M
4
Coatue Management
Coatue Management
New York
+$303M
5
Citadel Advisors
Citadel Advisors
Florida
+$257M

Top Sellers

1 -$1.28B
2 -$468M
3 -$271M
4
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$260M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$234M
Name Holding Trade Value Shares
Change
Change in
Stake
FSA
501
Fort Sheridan Advisors
Illinois
$4.44M
PAG
502
Private Advisor Group
New Jersey
$4.41M
CI
503
Conning Inc
Connecticut
$4.41M
MIM
504
Marco Investment Management
Georgia
$4.38M
RWA
505
River Wealth Advisors
Pennsylvania
$4.37M
SFI
506
Siemens Fonds Invest
Germany
$4.37M
NMERB
507
New Mexico Educational Retirement Board
New Mexico
$4.37M
MSRPS
508
Maryland State Retirement & Pension System
Maryland
$4.37M
FMI
509
F/M Investments
District of Columbia
$4.35M
LOAMS
510
Lombard Odier Asset Management (Switzerland)
Switzerland
$4.34M
EFM
511
E Fund Management
China
$4.34M
B
512
Bailard
California
$4.34M
OQS
513
Occudo Quantitative Strategies
Florida
$4.32M
FFM
514
Fisher Funds Management
New Zealand
$4.32M
DWM
515
Diversify Wealth Management
Utah
$4.27M
JFGIW
516
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$4.27M
OPS
517
Orion Portfolio Solutions
Nebraska
$4.22M
BCI
518
Brinker Capital Investments
Pennsylvania
$4.22M
ATIA
519
American Trust Investment Advisors
New Hampshire
$4.22M
JGCM
520
Joseph Group Capital Management
Ohio
$4.18M
OAC
521
OMERS Administration Corp
Ontario, Canada
$4.17M
HWAM
522
Hennion & Walsh Asset Management
New Jersey
$4.16M
IMCOOI
523
Investment Management Corp of Ontario (IMCO)
Canada
$4.15M
BCM
524
Bowie Capital Management
Texas
$4.14M
BCV
525
Banque Cantonale Vaudoise
Switzerland
$4.13M