Lam Research Ownership | Who Owns Lam Research?
Lam Research Ownership Summary
Lam Research is owned by 78.54% institutional investors, 0.28% insiders, and 21.18% retail investors. Vanguard group is the largest institutional shareholder, holding 10.28% of LRCX shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.17% of its assets in Lam Research shares.
LRCX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Lam Research | 78.54% | 0.28% | 21.18% |
| Sector | Technology Stocks | 50.63% | 12.54% | 36.83% |
| Idea | Semiconductor Stocks List | 114.42% | 7.19% | -21.61% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 130.97M | 10.28% | $17.54B |
| Blackrock | 12.93M | 9.88% | $13.77B |
| Blackrock funding, inc. /de | 124.26M | 9.75% | $16.64B |
| State street | 59.82M | 4.69% | $8.02B |
| Geode capital management | 33.62M | 2.64% | $4.49B |
| Jpmorgan chase | 29.94M | 2.35% | $4.01B |
| Ameriprise financial | 25.32M | 1.99% | $3.39T |
| Fmr | 23.35M | 1.83% | $3.13B |
| Invesco | 21.18M | 1.66% | $2.84B |
| Morgan stanley | 19.86M | 1.56% | $2.66B |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Oaktop capital management ii | 2.69M | 32.59% | $360.39M |
| Marlowe partners lp | 7.77K | 23.26% | $8.28M |
| Four tree island advisory | 234.54K | 18.45% | $28.94M |
| Harbor island capital | 230.80K | 13.23% | $30.90M |
| Blue whale capital llp | 1.70M | 12.60% | $227.83M |
| Heard capital | 1.59M | 10.30% | $212.26M |
| Trybe capital management lp | 478.25K | 8.55% | $64.04M |
| Crosslink capital | 763.24K | 7.43% | $102.20M |
| Sustainable insight capital management | 169.48K | 7.13% | $22.69M |
| Groesbeck investment management corp /nj/ | 25.22K | 6.59% | $3.38M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Arrowstreet capital, limited partnership | 11.34M | 0.96% | 10.05M |
| Invesco | 21.18M | 0.45% | 3.26M |
| Barclays | 10.24M | 0.30% | 2.50M |
| California public employees retirement system | 4.53M | 0.36% | 2.36M |
| Blackrock funding, inc. /de | 124.26M | 0.29% | 2.06M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Jpmorgan chase | 29.94M | 0.24% | -10.68M |
| Winslow capital management | 22.74K | 0.01% | -8.29M |
| Fil | 1.44M | 0.15% | -5.67M |
| Ameriprise financial | 25.32M | 0.78% | -5.13M |
| Price t rowe associates inc /md/ | 3.03M | 0.04% | -3.85M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 1.81M | 0.29% | 1.81M | $1.93B |
| Axa investment managers | 776.14K | 0.28% | 776.14K | $103.93M |
| Aspex management (hk) | 399.64K | 1.13% | 399.64K | $53.51M |
| Cloudalpha capital management limited/hong kong | 210.20K | 1.01% | 210.20K | $28.15M |
| Sustainable insight capital management | 169.48K | 7.13% | 169.48K | $22.69M |
Sold Out
| Holder | Change |
|---|---|
| Tfo-tdc | -1.00 |
| Financial network wealth advisors | -2.00 |
| Vitalstone financial | -2.00 |
| Horrell capital management | -2.00 |
| Macroview investment management | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 2,057 | 7.53% | 1,000,873,380 | -4.75% | 78 | 1.18% | 1,053 | 8.00% | 682 | 4.44% |
| Jun 30, 2025 | 1,862 | 2.59% | 1,047,926,605 | 3.08% | 81 | 1.30% | 952 | -2.06% | 637 | 19.07% |
| Mar 31, 2025 | 1,788 | 2.11% | 1,012,042,531 | -1.79% | 78 | 1.23% | 954 | -41.65% | 529 | 1663.33% |
| Dec 31, 2024 | 92 | -93.43% | 6,085,118 | -93.48% | - | 0.01% | 77 | -88.01% | 7 | -98.56% |
| Sep 30, 2024 | 1,378 | -25.79% | 93,155,317 | -14.80% | 71 | 1.02% | 630 | -24.64% | 480 | -26.38% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 40.19M | 3.17% | -931.97K |
| Vanguard 500 Index Investor | 31.66M | 2.50% | -4.64M |
| Invesco QQQ Trust | 26.36M | 2.08% | 182.98K |
| Fidelity 500 Index | 16.21M | 1.28% | 6.97K |
| SPDR® S&P 500 ETF | 15.97M | 1.24% | -266.09K |
| SPDR® S&P 500® ETF | 15.44M | 1.22% | 190.00K |
| iShares Core S&P 500 ETF | 15.40M | 1.22% | - |
| SPDR® S&P 500® ETF Trust | 15.54M | 1.21% | -81.43K |
| Vanguard Growth Index Investor | 13.69M | 1.08% | 64.03K |
| VanEck Semiconductor ETF | 11.72M | 0.93% | -25.28K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Nov 14, 2025 | Bettinger Douglas R | Chief Financial Officer & EVP | Sell | $6.04M |
| Nov 07, 2025 | Mayer Bethany | - | Sell | $4.79K |
| Nov 03, 2025 | Mayer Bethany | - | Sell | $207.67K |
| Oct 27, 2025 | Harter Ava | Chief Legal Officer | Sell | $946.33K |
| Oct 27, 2025 | Harter Ava | Chief Legal Officer | Sell | $472.44K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | 5 |
| 2025 Q3 | - | - |
| 2025 Q2 | 1 | - |
| 2025 Q1 | - | 1 |
| 2024 Q4 | - | 2 |
LRCX Ownership FAQ
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