Lam Research Corporation
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Lam Research Corporation (LRCX) SEC Filings
Browse all Lam Research Corporation SEC filings, including Annual reports (10-K), Quarterly reports (10-Q), 8-K, proxy statements (DEF 14A), and insider filings (Form 4). Access official documents by filing date, reporting period, and form type. ...more
Lam Research Corporation Reports: Annual 10-K, Quarterly 10-Q & SEC Filings
SEC Filings
Date
2026
SC 13G/A
Updated passive ownership disclosure
4
Insider ownership (buying, selling) activity
3
Initial disclosure of insider ownership
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
3/A
Corrected or updated initial insider ownership
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
3
Initial disclosure of insider ownership
4
Insider ownership (buying, selling) activity
8-K/A
Corrected company event report
8-K
Material company events (earnings, M&A, or leadership changes)
10-Q
Quarterly financial results and management updates
8-K
Material company events (earnings, M&A, or leadership changes)
2025
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
Lam Research Corporation (Form SC 13G/A) 2026
Ownership & Other / Updated passive ownership disclosure
Mar 27, 2026
