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Lam Research

2,610 hedge funds and large institutions have $215B invested in Lam Research in 2026 Q1 according to their latest regulatory filings, with 394 funds opening new positions, 888 increasing their positions, 1,062 reducing their positions, and 105 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 capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

5% less call options, than puts

Call options by funds: $4.46B | Put options by funds: $4.68B

3.41% less ownership

Funds ownership: 84.35%80.94% (-3.4%)

16% less repeat investments, than reductions

Existing positions increased: 888 | Existing positions reduced: 1,062

Holders
2,610
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
139
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.46B
Puts
$4.68B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
ZIM
301
Zacks Investment Management
Illinois
$49.6M
FTIA
302
Four Tree Island Advisory
New Hampshire
$48.8M
JAM
303
Jupiter Asset Management
United Kingdom
$48.1M
ASC
304
Atalanta Sosnoff Capital
New York
$47.9M
VPIM
305
Vanguard Personalized Indexing Management
California
$47.8M
UIM
306
USS Investment Management
United Kingdom
$47.7M
Public Sector Pension Investment Board (PSP Investments)
307
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$47.6M
BPWM
308
Badgley Phelps Wealth Managers
Washington
$47.4M
Carson Wealth (CWM LLC)
309
Carson Wealth (CWM LLC)
Nebraska
$47.3M
Rockefeller Capital Management
310
Rockefeller Capital Management
New York
$46.5M
Kovitz Investment Group Partners
311
Kovitz Investment Group Partners
Illinois
$44.9M
UM
312
UniSuper Management
Australia
$44.8M
GAM
313
Guinness Asset Management
United Kingdom
$44.1M
URS
314
Utah Retirement Systems
Utah
$43.6M
ADEF
315
Adams Diversified Equity Fund
Maryland
$43.1M
NYLIM
316
New York Life Investment Management
New York
$42.8M
CCM
317
Coldstream Capital Management
Washington
$42.3M
GLF
318
Groupe la Francaise
France
$41.6M
PFSRSONJ
319
Police & Firemen's Retirement System of New Jersey
New Jersey
$41.3M
QC
320
Quadrature Capital
United Kingdom
$41M
Tudor Investment Corp
321
Tudor Investment Corp
Connecticut
$40.3M
Wealthfront Advisers
322
Wealthfront Advisers
California
$39.8M
MIG
323
McGuire Investment Group
Rhode Island
$39.7M
HFM
324
Harvest Fund Management
China
$39.3M
N
325
Natixis
France
$39.2M