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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
CAM
1276
Costello Asset Management
Pennsylvania
$358K
BBA
1277
Baader Bank Aktiengesellschaft
Germany
$358K
UB
1278
UMB Bank
Missouri
$357K
BFO
1279
Biltmore Family Office
North Carolina
$357K
CFP
1280
Catalyst Financial Partners
Massachusetts
$352K
VA
1281
VestGen Advisors
Illinois
$351K
GPA
1282
Guerra Pan Advisors
New Jersey
$349K
OHIS
1283
Oak Harvest Investment Services
Texas
$348K
VCP
1284
Verus Capital Partners
Arizona
$346K
CAM
1285
Columbia Asset Management
Michigan
$345K
CPW
1286
Crestmont Private Wealth
Texas
$345K
SMFG
1287
Sumitomo Mitsui Financial Group
Japan
$345K
CJ
1288
Caitlin John
Michigan
$345K
ZF
1289
Zhang Financial
Michigan
$344K
VC
1290
Veracity Capital
Georgia
$344K
SIC
1291
Salem Investment Counselors
North Carolina
$344K
HFW
1292
Horizon Family Wealth
Illinois
$343K
PWP
1293
Prasad Wealth Partners
Ohio
$343K
CWA
1294
Continuum Wealth Advisors
New York
$342K
BCM
1295
Berbice Capital Management
New York
$342K
PFG
1296
Prosperity Financial Group
California
$341K
BWA
1297
Bordeaux Wealth Advisors
California
$340K
PFA
1298
Pure Financial Advisors
California
$340K
CT
1299
Caldwell Trust
Florida
$336K
HPM
1300
Hoxton Planning & Management
West Virginia
$335K