Lam Research
LRCX · NASDAQ
Who owns LRCX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 35.1% of LRCX’s shares.
- BlackRock Institutional Trust Company, N.A.6.6%
- Vanguard Capital Management, LLC6.5%
- State Street Investment Management (US)4.9%
- Invesco Capital Management LLC3.3%
- Next 6 largest institutions13.7%
- All other shareholders64.9%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 83.06M | 6.64% |
| Vanguard Capital Management, LLC | 81.68M | 6.53% |
| State Street Investment Management (US) | 60.70M | 4.85% |
| Invesco Capital Management LLC | 41.52M | 3.32% |
| Vanguard Portfolio Management, LLC | 36.64M | 2.93% |
| Geode Capital Management, L.L.C. | 34.51M | 2.76% |
| Fidelity Management & Research Company LLC | 30.80M | 2.46% |
| JP Morgan Asset Management | 28.81M | 2.30% |
| T. Rowe Price Associates, Inc. | 22.77M | 1.82% |
| Norges Bank Investment Management (NBIM) | 18.12M | 1.45% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 39.82M | 3.18% |
| Vanguard 500 Index Fund | 32.83M | 2.62% |
| Invesco QQQ Trust | 26.90M | 2.15% |
| Statens Pensjonsfond Utland | 16.73M | 1.34% |
| iShares Core S&P 500 ETF | 16.68M | 1.33% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $106.02M (55 trades) of LRCX on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Mayer Bethany | Sale | 9.56K | $3.01M |
| ARCHER TIMOTHY | Option exercise | 30.00K | — |
| ARCHER TIMOTHY | Sale | 30.00K | $9.58M |
| ARCHER TIMOTHY | Option exercise | 30.00K | $900.99K |
| Varadarajan Seshasayee | Option exercise | 27.48K | — |
| Varadarajan Seshasayee | Option exercise | 12.27K | — |
| Varadarajan Seshasayee | Sale | 27.48K | $8.01M |
| Varadarajan Seshasayee | Option exercise | 27.48K | $825.31K |
| Varadarajan Seshasayee | Sale | 12.27K | $3.57M |
| Varadarajan Seshasayee | Option exercise | 12.27K | $734.74K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| David TaylorHouse | Sale | $1K–$15K | Jun 5, 2026 |
| David TaylorHouse | Sale | $1K–$15K | Apr 27, 2026 |
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
| David TaylorHouse | Purchase | $1K–$15K | Mar 12, 2026 |
| David TaylorHouse | Sale | $1K–$15K | Feb 26, 2026 |
| Tony WiedHouse | Sale | $50K–$100K | Feb 12, 2026 |
| Tony WiedHouse | Sale | $50K–$100K | Feb 9, 2026 |
| Cleo FieldsHouse | Purchase | $15K–$50K | Feb 3, 2026 |
| Tony WiedHouse | Sale | $50K–$100K | Feb 3, 2026 |
| David TaylorHouse | Sale | $1K–$15K | Jan 16, 2026 |
| David TaylorHouse | Sale | $15K–$50K | Jan 8, 2026 |
| Markwayne MullinSenator | Purchase | $50K–$100K | Dec 29, 2025 |
Short interest
Settled Sep 30, 2026
- Shares short
- 25.81M
- Days to cover
- 2.62
- % of shares outstanding
- 2.06%
- Average daily volume
- 9.84M
- Change since last report
- −1.0%
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