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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
National Pension Service
51
National Pension Service
South Korea
$231M
Royal Bank of Canada
52
Royal Bank of Canada
Ontario, Canada
$229M
Envestnet Asset Management
53
Envestnet Asset Management
Illinois
$227M
PNC Financial Services Group
54
PNC Financial Services Group
Pennsylvania
$222M
HSBC Holdings
55
HSBC Holdings
United Kingdom
$220M
Raymond James Financial
56
Raymond James Financial
Florida
$210M
Mitsubishi UFJ Asset Management
57
Mitsubishi UFJ Asset Management
Japan
$203M
California Public Employees Retirement System
58
California Public Employees Retirement System
California
$200M
TD Asset Management
59
TD Asset Management
Ontario, Canada
$197M
Canada Pension Plan Investment Board
60
Canada Pension Plan Investment Board
Ontario, Canada
$196M
OCMI
61
Oaktop Capital Management II
New Jersey
$196M
SEI Investments
62
SEI Investments
Pennsylvania
$189M
RhumbLine Advisers
63
RhumbLine Advisers
Massachusetts
$189M
DnB Asset Management
64
DnB Asset Management
Norway
$187M
Principal Financial Group
65
Principal Financial Group
Iowa
$174M
Kovitz Investment Group Partners
66
Kovitz Investment Group Partners
Illinois
$173M
Boston Partners
67
Boston Partners
Massachusetts
$171M
Wellington Management Group
68
Wellington Management Group
Massachusetts
$166M
Allianz Asset Management
69
Allianz Asset Management
Germany
$162M
Russell Investments Group
70
Russell Investments Group
United Kingdom
$160M
Schroder Investment Management Group
71
Schroder Investment Management Group
United Kingdom
$159M
ProShare Advisors
72
ProShare Advisors
Maryland
$158M
Millennium Management
73
Millennium Management
New York
$157M
California State Teachers Retirement System (CalSTRS)
74
California State Teachers Retirement System (CalSTRS)
California
$148M
WP
75
Woodline Partners
California
$144M