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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
BC
251
Burney Company
Virginia
$21.4M
WJWM
252
Williams Jones Wealth Management
New York
$21.4M
COPPSERS
253
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$21.3M
Daiwa Securities Group
254
Daiwa Securities Group
Japan
$21.1M
ADEF
255
Adams Diversified Equity Fund
Maryland
$20.6M
Credit Agricole
256
Credit Agricole
France
$20.5M
ELI
257
Empire Life Investments
Ontario, Canada
$20.5M
FDCDDQ
258
Federation des caisses Desjardins du Quebec
Quebec, Canada
$20.4M
CFC
259
Cincinnati Financial Corp
Ohio
$20.2M
Retirement Systems of Alabama
260
Retirement Systems of Alabama
Alabama
$20.1M
Lido Advisors
261
Lido Advisors
California
$20M
AB
262
Amalgamated Bank
New York
$19.8M
SPPAM
263
Summit Partners Public Asset Management
Massachusetts
$19.8M
MGIA
264
Moneta Group Investment Advisors
Missouri
$19.5M
Pathstone Holdings
265
Pathstone Holdings
New Jersey
$19.5M
WA
266
Wealth Architects
California
$19.2M
DDPIC
267
Deroy & Devereaux Private Investment Counsel
Michigan
$19.1M
SC
268
SummitTX Capital
Texas
$18.7M
Two Sigma Investments
269
Two Sigma Investments
New York
$18.7M
UM
270
UniSuper Management
Australia
$18.6M
FTIA
271
Four Tree Island Advisory
New Hampshire
$18.6M
VMPIC
272
Varma Mutual Pension Insurance Co
Finland
$18.5M
HNB
273
Huntington National Bank
Ohio
$18.3M
PF
274
Phoenix Financial
Israel
$18.3M
DKCM
275
Davidson Kempner Capital Management
New York
$18.2M