---
schema_version: "secwatch.filing_event.v1"
accession: "0000707549-24-000123"
form_type: "8-K"
ticker: "LRCX"
cik: "0000707549"
company_name: "LAM RESEARCH CORP"
filed_at: "2024-10-02T23:59:59+00:00"
generated_at: "2026-05-30T22:52:57.245380+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Lam Research effects 10-for-1 forward stock split; authorized shares increased to 4 billion

## Summary
- Each existing share split into 10 shares effective 5:00 p.m. ET on Oct 2, 2024.
- Authorized common shares raised from 400M to 4B; par value unchanged at $0.001.
- Stock split-adjusted trading on Nasdaq begins Oct 3, 2024, under symbol LRCX.
- New CUSIP is 512807306; proportionate adjustments made to equity awards and plans.
- Stockholder approval not required under Delaware law.

## SEC filing metadata
- accession: 0000707549-24-000123
- form_type: 8-K
- ticker: LRCX
- cik: 0000707549
- company_name: LAM RESEARCH CORP
- filed_at: 2024-10-02T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/707549/000070754924000123/0000707549-24-000123-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/707549/000070754924000123/lrcx-20241002.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000707549-24-000123
- JSON: https://secwatch.observer/filing/0000707549-24-000123.json
- Plain text: https://secwatch.observer/filing/0000707549-24-000123.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.