LAM RESEARCH CORP
United States·USD
Congressional Trades
Whale Activity
- Increased0
- New0
- Held0
- Decreased0
- Closed0
- No prior filing6
| Filer | Shares | Value | Change |
|---|---|---|---|
| Violich Capital Management, Inc. | 92.3K | $30.3M | — |
| Silverleafe Capital Partners, LLC | 5,132 | $1.7M | — |
| Marathon Mission, Inc. | 3,944 | $1.3M | — |
| NEVILLE RODIE & SHAW INC | 228.6K | $75K | — |
| CX Institutional | 56.1K | $18K | — |
| Polaris Financial Partners | 14.8K | $5K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Recent Insider Transactions
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Mayer BethanyDirector · Director | Sale | −9,557 | $314.74 | $3.0M | Sep 9, 2026 | Form 4 ↗ |
| ARCHER TIMOTHYPresident and CEO | Sale | −30.0K | $319.26 | $9.6M | Sep 9, 2026 | Form 4 ↗ |
| Varadarajan SeshasayeeSenior Vice President | Sale | −27.5K | $291.32 | $8.0M | Sep 2, 2026 | Form 4 ↗ |
| Varadarajan SeshasayeeSenior Vice President | Sale | −20.0K | $291.32 | $5.8M | Sep 2, 2026 | Form 4 ↗ |
| Varadarajan SeshasayeeSenior Vice President | Sale | −12.3K | $291.32 | $3.6M | Sep 2, 2026 | Form 4 ↗ |
| Harter AvaChief Legal Officer | Sale | −5,000 | $302.46 | $1.5M | Aug 31, 2026 | Form 4 ↗ |
| ARCHER TIMOTHYPresident and CEO | Sale | −30.0K | $300.00 | $9.0M | Aug 6, 2026 | Form 4 ↗ |
| TALWALKAR ABHIJIT YDirector · Director | Sale | −18.3K | $335.00 | $6.1M | Jul 13, 2026 | Form 4 ↗ |
| ARCHER TIMOTHYPresident and CEO | Sale | −30.0K | $390.01 | $11.7M | Jul 2, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −1,600 | $373.09 | $597K | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −7,700 | $372.23 | $2.9M | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −8,233 | $371.17 | $3.1M | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −5,037 | $370.27 | $1.9M | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −4,198 | $369.16 | $1.5M | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −4,030 | $368.03 | $1.5M | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −5,803 | $367.01 | $2.1M | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −1,200 | $365.16 | $438K | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −2,300 | $364.41 | $838K | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −2,345 | $363.33 | $852K | Jun 12, 2026 | Form 4 ↗ |
| BRANDT ERICDirector | Sale | −2,708 | $362.40 | $981K | Jun 12, 2026 | Form 4 ↗ |
Fund Holders
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 39.7M | $17.20B | 0.75% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 32.4M | $14.04B | 0.84% | Jun 30, 2026 |
| Invesco QQQ Trust, Series 1 | 26.5M | $11.50B | 2.35% | Jun 30, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 17.2M | $7.45B | 0.84% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 15.1M | $6.56B | 0.84% | Jun 30, 2026 |
| VANGUARD GROWTH INDEX FUND VANGUARD INDEX FUNDS | 13.2M | $5.71B | 1.51% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 16.0M | $5.08B | 0.61% | May 31, 2026 |
| VanEck Semiconductor ETF VanEck ETF Trust | 9.5M | $4.10B | 5.31% | Jun 30, 2026 |
| State Street(R) Technology Select Sector SPDR(R) ETF SELECT SECTOR SPDR TRUST | 8.6M | $3.74B | 3.02% | Jun 30, 2026 |
| JPMorgan Large Cap Growth Fund JPMorgan Trust II | 7.3M | $3.18B | 2.61% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list LRCX's shares (CUSIP 512807306), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
No 13D/13G beneficial-ownership filings on record.
Corporate Lobbying
- THE GALLAGHER GROUP, LLCLAM RESEARCH CORP. · 2026 Q2 · DEF, TRD, SCI$40K
Filing ↗ - AKIN GUMP STRAUSS HAUER & FELDLAM RESEARCH CORPORATION · 2026 Q2—
Filing ↗ - MERCURY PUBLIC AFFAIRS, LLCLAM RESEARCH CORPORATION · 2026 Q2 · SCI$80K
Filing ↗ - MERCURY PUBLIC AFFAIRS, LLCLAM RESEARCH CORPORATION · 2026 Q2 · SCI$80K
Filing ↗ - LAM RESEARCH CORPORATIONLAM RESEARCH CORPORATION · 2026 Q2 · BUD, TAX, DEF, TRD$80K
Filing ↗
Government Contracts
No federal contract awards found for LAM RESEARCH CORP.
U.S. Patents
No USPTO patent applications found for LAM RESEARCH CORP.
Annual Financials
No annual XBRL figures on record for LRCX. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
- 10-for-1Stock splitOct 3, 2024
- 3-for-1Stock splitMar 17, 2000
- 3-for-2Stock splitSep 16, 1993
Split dates and ratios from the price history · Close Prices from Tiingo.com
About LAM RESEARCH CORP
Incorporated in 1980, Lam Research Corporation (“Lam Research,” “Lam,” “we,” “our,” “us,” or the “Company”) is a Delaware corporation, headquartered in Fremont, California. We maintain a network of facilities throughout Asia, Europe, and the United States in order to meet the needs of our dynamic customer base. Additional information about Lam Research is available on our website at www.lamresearch.com. The content on any website referred to in this Form 10-K is not a part of or incorporated by reference in this Form 10-K unless expressly noted. Our Annual Report on Form 10-K, Quarterly Reports on Forms 10-Q, Current Reports on Forms 8-K, Proxy Statements and all other filings we make with t…