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Lam Research

2,621 hedge funds and large institutions have $216B invested in Lam Research in 2026 Q1 according to their latest regulatory filings, with 394 funds opening new positions, 894 increasing their positions, 1,068 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

2.86% less ownership

Funds ownership: 83.87%81.01% (-2.9%)

16% less repeat investments, than reductions

Existing positions increased: 894 | Existing positions reduced: 1,068

Holders
2,621
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
140
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
BC
301
Burney Company
Virginia
$50.2M
ZIM
302
Zacks Investment Management
Illinois
$49.6M
FTIA
303
Four Tree Island Advisory
New Hampshire
$48.8M
JAM
304
Jupiter Asset Management
United Kingdom
$48.1M
ASC
305
Atalanta Sosnoff Capital
New York
$47.9M
VPIM
306
Vanguard Personalized Indexing Management
California
$47.8M
UIM
307
USS Investment Management
United Kingdom
$47.7M
Public Sector Pension Investment Board (PSP Investments)
308
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$47.6M
BPWM
309
Badgley Phelps Wealth Managers
Washington
$47.4M
Carson Wealth (CWM LLC)
310
Carson Wealth (CWM LLC)
Nebraska
$47.3M
Rockefeller Capital Management
311
Rockefeller Capital Management
New York
$46.5M
Kovitz Investment Group Partners
312
Kovitz Investment Group Partners
Illinois
$44.9M
UM
313
UniSuper Management
Australia
$44.8M
GAM
314
Guinness Asset Management
United Kingdom
$44.1M
URS
315
Utah Retirement Systems
Utah
$43.6M
ADEF
316
Adams Diversified Equity Fund
Maryland
$43.1M
NYLIM
317
New York Life Investment Management
New York
$42.8M
CCM
318
Coldstream Capital Management
Washington
$42.3M
GLF
319
Groupe la Francaise
France
$41.6M
PFSRSONJ
320
Police & Firemen's Retirement System of New Jersey
New Jersey
$41.3M
QC
321
Quadrature Capital
United Kingdom
$41M
Tudor Investment Corp
322
Tudor Investment Corp
Connecticut
$40.3M
Wealthfront Advisers
323
Wealthfront Advisers
California
$39.8M
MIG
324
McGuire Investment Group
Rhode Island
$39.7M
HFM
325
Harvest Fund Management
China
$39.3M