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Lam Research

1,774 hedge funds and large institutions have $74.2B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 269 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 (-$363M)

Holders
1,774
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
CH
1351
Cromwell Holdings
Wyoming
$293K
EFSCE
1352
Enterprise Financial Services Corp (EFSC)
Missouri
$293K
SWA
1353
Sax Wealth Advisors
New Jersey
$292K
CCC
1354
Chelsea Counsel Company
California
$292K
GIM
1355
Grassi Investment Management
California
$291K
OCPWS
1356
One Charles Private Wealth Services
Massachusetts
$291K
CWP
1357
Core Wealth Partners
California
$291K
JIR
1358
James Investment Research
Ohio
$291K
EWA
1359
Exencial Wealth Advisors
Oklahoma
$290K
LWMM
1360
Legacy Wealth Management (Mississippi)
Mississippi
$289K
IA
1361
Insight Advisors
Pennsylvania
$288K
FMP
1362
Financial Management Professionals
Texas
$287K
WF
1363
Whelan Financial
California
$287K
SOS
1364
Silver Oak Securities
Tennessee
$286K
PWAM
1365
Private Wealth Asset Management
Iowa
$286K
PWG
1366
Portside Wealth Group
Utah
$285K
DS
1367
DRW Securities
Illinois
$285K
GDP
1368
Great Diamond Partners
Maine
$284K
FCM
1369
Fieldview Capital Management
Michigan
$283K
WAM
1370
Walker Asset Management
Missouri
$281K
IP
1371
Ignite Planners
California
$279K
RWB
1372
RMR Wealth Builders
New Jersey
$279K
HCM
1373
Hollencrest Capital Management
California
$277K
RZH
1374
Relyea Zuckerberg Hanson
Connecticut
$276K
SWM
1375
Sendero Wealth Management
Texas
$276K