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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
RCM
1451
Raleigh Capital Management
North Carolina
$228K
DSAM
1452
Dock Street Asset Management
Florida
$228K
BWP
1453
Baldwin Wealth Partners
Massachusetts
$227K
KCPG
1454
Kavar Capital Partners Group
Kansas
$227K
MSFS
1455
Main Street Financial Solutions
Pennsylvania
$226K
RWPA
1456
Richard W. Paul & Associates
Michigan
$226K
CFAM
1457
Center For Asset Management
Florida
$226K
WP
1458
Westmount Partners
California
$225K
CCA
1459
Catalyst Capital Advisors
New York
$225K
OTL
1460
Oak Thistle LLC
New York
$224K
OPCM
1461
Osborne Partners Capital Management
California
$223K
RPWA
1462
Regent Peak Wealth Advisors
Georgia
$223K
IA
1463
IFG Advisory
Georgia
$223K
SCM
1464
Schnieders Capital Management
California
$222K
AWA
1465
Arete Wealth Advisors
Illinois
$222K
SIM
1466
Stratos Investment Management
Ohio
$222K
CTA
1467
Chesley Taft & Associates
Illinois
$221K
HI
1468
Harbour Investments
Wisconsin
$221K
CCMT
1469
CMT Capital Markets Trading
Germany
$220K
NCM
1470
Northside Capital Management
Oregon
$219K
HI
1471
Hudock Inc
Pennsylvania
$219K
PA
1472
PharVision Advisers
Florida
$218K
BIG
1473
Builder Investment Group
Georgia
$218K
CP
1474
Cumberland Partners
Ontario, Canada
$218K
MPW
1475
Monterey Private Wealth
California
$218K