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LRCX SEC Filing News — Lam Research Corporation

Latest SEC filings for Lam Research Corporation (LRCX) explained in plain English: insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). Sourced directly from SEC EDGAR.

What you’re looking at: Each item below is parsed from an actual SEC filing. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.
Form 10-Q Quarterly Report 2026-04-23

LRCX filed Quarterly Report (10-Q)

LAM RESEARCH CORP filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
Form 8-K Material Company Update 2026-04-22

LRCX filed 8-K — material company event

LAM RESEARCH CORP filed an 8-K with the SEC reporting a material event. Filing excerpt: XBRL Viewer

Filing: 8-K (Material Event)
Form 4 Tax / Compensation Filing 2026-03-11

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

TALWALKAR ABHIJIT Y (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: TALWALKAR ABHIJIT Y (Director) Shares: 4,571
Form 4 Insider Selling 2026-03-05

LRCX insider Bettinger Douglas R (Chief Financial Officer & EVP) sold 50,057 shares (~$11.21M)

Bettinger Douglas R, listed as Chief Financial Officer & EVP at LAM RESEARCH CORP, reported an open-market sale of 50,057 LRCX shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: Bettinger Douglas R (Chief Financial Officer & EVP) Shares: 50,057 Est. Value: $11.21M
Form 4 Insider Selling 2026-03-05

LRCX insider Harter Ava (Chief Legal Officer) sold 1,500 shares (~$334.0K)

Harter Ava, listed as Chief Legal Officer at LAM RESEARCH CORP, reported an open-market sale of 1,500 LRCX shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: Harter Ava (Chief Legal Officer) Shares: 1,500 Est. Value: $334.0K
Form 144 Proposed Insider Sale 2026-03-04

LRCX Form 144 filed for proposed insider sale by Harter Ava (1,500 shares) ~$668.0K

Harter Ava filed a Form 144 with the SEC indicating intent to sell LRCX (LAM RESEARCH CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Harter Ava Shares: 1,500 Est. Value: $668.0K
Form 144 Large Proposed Insider Sale 2026-03-04

LRCX Form 144 filed for proposed insider sale by Bettinger Douglas R (50,057 shares) ~$22.43M

Bettinger Douglas R filed a Form 144 with the SEC indicating intent to sell LRCX (LAM RESEARCH CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: Bettinger Douglas R Shares: 50,057 Est. Value: $22.43M
Form 4 Insider Selling 2026-03-03

LRCX insider Bettinger Douglas R (Chief Financial Officer & EVP) sold 40,329 shares (~$9.28M)

Bettinger Douglas R, listed as Chief Financial Officer & EVP at LAM RESEARCH CORP, reported an open-market sale of 40,329 LRCX shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: Bettinger Douglas R (Chief Financial Officer & EVP) Shares: 40,329 Est. Value: $9.28M
Form 4 Insider Selling 2026-03-03

LRCX insider Harter Ava (Chief Legal Officer) sold 4,000 shares (~$930.0K)

Harter Ava, listed as Chief Legal Officer at LAM RESEARCH CORP, reported an open-market sale of 4,000 LRCX shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: Harter Ava (Chief Legal Officer) Shares: 4,000 Est. Value: $930.0K
Form 4 Tax / Compensation Filing 2026-03-02

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

Bettinger Douglas R (Chief Financial Officer & EVP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Bettinger Douglas R (Chief Financial Officer & EVP) Shares: 61,220
Form 4 Tax / Compensation Filing 2026-03-02

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

Varadarajan Seshasayee (Senior Vice President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Varadarajan Seshasayee (Senior Vice President) Shares: 49,460
Form 4 Tax / Compensation Filing 2026-03-02

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

Vahedi Vahid (Senior Vice President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Vahedi Vahid (Senior Vice President) Shares: 42,027
Form 4 Tax / Compensation Filing 2026-03-02

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

Harter Ava (Chief Legal Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Harter Ava (Chief Legal Officer) Shares: 12,293
Form 4 Tax / Compensation Filing 2026-03-02

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

Fernandes Neil J (Senior Vice President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Fernandes Neil J (Senior Vice President) Shares: 25,365
Form 4 Tax / Compensation Filing 2026-03-02

LRCX insider Form 4 filed for equity award, exercise, or tax withholding

ARCHER TIMOTHY (President and CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: ARCHER TIMOTHY (President and CEO) Shares: 223,347
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