---
schema_version: "secwatch.filing_event.v1"
accession: "0001819142-25-000067"
form_type: "8-K"
ticker: "SES"
cik: "0001819142"
company_name: "SES AI Corp"
filed_at: "2025-11-07T23:59:59+00:00"
generated_at: "2026-05-16T23:06:51.141095+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Dr. Jang Wook Choi resigns from SES AI Board effective Nov 10, 2025

## Summary
- Dr. Jang Wook Choi notified SES AI of his resignation from the Board on November 6, 2025.
- Resignation effective November 10, 2025, for personal reasons.
- No disagreement with management, board, operations, policies, or practices.
- No replacement announced; board size reduced by one.

## SEC filing metadata
- accession: 0001819142-25-000067
- form_type: 8-K
- ticker: SES
- cik: 0001819142
- company_name: SES AI Corp
- filed_at: 2025-11-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819142/000181914225000067/0001819142-25-000067-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819142/000181914225000067/ses-20251106x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001819142-25-000067
- JSON: https://secwatch.observer/filing/0001819142-25-000067.json
- Plain text: https://secwatch.observer/filing/0001819142-25-000067.txt

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