---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-205164"
form_type: "8-K"
ticker: "LAC"
cik: "0001966983"
company_name: "LITHIUM AMERICAS CORP."
filed_at: "2026-05-05T23:59:59+00:00"
generated_at: "2026-05-14T23:34:55.449965+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Lithium Americas appoints former Rio Tinto executive Clayton Walker to board

## Summary
- Clayton Walker appointed as independent director effective May 4, 2026.
- Walker most recently served as Chief Growth and Development Officer at Rio Tinto; 25+ years in mining.
- Will chair Safety & Sustainability Committee and serve on Audit/Risk and Technical committees if re-elected at 2026 annual meeting.
- No material interest in any proposed transaction, per company disclosure.

## SEC filing metadata
- accession: 0001193125-26-205164
- form_type: 8-K
- ticker: LAC
- cik: 0001966983
- company_name: LITHIUM AMERICAS CORP.
- filed_at: 2026-05-05T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1966983/000119312526205164/0001193125-26-205164-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1966983/000119312526205164/d115308d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-205164
- JSON: https://secwatch.observer/filing/0001193125-26-205164.json
- Plain text: https://secwatch.observer/filing/0001193125-26-205164.txt

## Key facts
- Executive change
  Clayton Walker was appointed as member of the Board at LITHIUM AMERICAS CORP..
  - Action: appointed
  - Role: member of the Board
  source text: On May 4, 2026, the board of directors (the “Board”) of Lithium Americas Corp. (the “Company”) appointed Clayton Walker to serve as a member of the Board, effective May 4, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1966983/000119312526205164/0001193125-26-205164-index.htm

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