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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
WF
1851
WoodTrust Financial
Wisconsin
DWP
1852
Destiny Wealth Partners
Florida
BFM
1853
Boothbay Fund Management
New York
CWS
1854
Confluence Wealth Services
Pennsylvania
PWPS
1855
Pinnacle Wealth Planning Services
Ohio
JWM
1856
Jessup Wealth Management
Ohio
CBA
1857
Coastal Bridge Advisors
Connecticut
FPL
1858
Fortress Private Ledger
North Carolina
FP
1859
Foundry Partners
Minnesota
OR
1860
Olympiad Research
Connecticut
KA
1861
KDT Advisors
New York
BC
1862
Bayforest Capital
United Kingdom
CFGS
1863
Concourse Financial Group Securities
Alabama
GWM
1864
Greenwich Wealth Management
Connecticut
SA
1865
Sovran Advisors
California
VIA
1866
Virtus Investment Advisers
Connecticut
SF
1867
Symphony Financial
Texas
FTC
1868
Farmers Trust Company
Ohio
IWP
1869
Invenio Wealth Partners
Florida
SWMG
1870
Signature Wealth Management Group
Georgia
WGC
1871
Watts Gwilliam & Co
Arizona
RIA
1872
Realta Investment Advisors
Delaware
SCM
1873
Stonehearth Capital Management
Massachusetts
OPPS
1874
Obsidian Personal Planning Solutions
Maryland
BFS
1875
BridgePort Financial Solutions
Iowa