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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
AAG
1526
Armstrong Advisory Group
Massachusetts
$152K
CCAM
1527
Cascades Capital Asset Management
North Carolina
$152K
BCWM
1528
Bartlett & Co Wealth Management
Ohio
$150K
GCM
1529
Gables Capital Management
Florida
$148K
CIM
1530
Contravisory Investment Management
Massachusetts
$145K
CSC
1531
Caldwell Sutter Capital
California
$142K
CIA
1532
Cape Investment Advisory
Georgia
$135K
AG
1533
AmeriFlex Group
Nevada
$130K
CWC
1534
Carolinas Wealth Consulting
North Carolina
$129K
GPI
1535
General Partner Inc
Pennsylvania
$126K
FCAS
1536
First Command Advisory Services
Texas
$126K
HWM
1537
Hemington Wealth Management
Virginia
$126K
JWM
1538
Jupiter Wealth Management
Colorado
$126K
CMP
1539
Coston McIsaac & Partners
Maine
$122K
FPF
1540
First Pacific Financial
Washington
$119K
SC
1541
SouthState Corp
Florida
$118K
CT
1542
Colonial Trust
South Carolina
$116K
WPWM
1543
Western Pacific Wealth Management
Illinois
$115K
OP
1544
ORG Partners
Indiana
$114K
WA
1545
Whipplewood Advisors
Colorado
$113K
BWL
1546
Bogart Wealth LLC
Virginia
$113K
PC
1547
Promethos Capital
Massachusetts
$113K
GKIM
1548
GW&K Investment Management
Massachusetts
$112K
WF
1549
Wayfinding Financial
Washington
$111K
BLC
1550
Brown, Lisle/Cummings
Rhode Island
$111K