---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-22-030772"
form_type: "8-K"
ticker: "GWH"
cik: "0001819438"
company_name: "ESS Tech, Inc."
filed_at: "2022-11-25T23:59:59+00:00"
generated_at: "2026-06-21T13:06:04.424588+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Director Claudia Gast resigns from ESS Tech Board effective November 25, 2022

## Summary
- Claudia Gast resigned from the Board of Directors and audit committee.
- Resignation required by new employer's policy; no disagreement with ESS Tech.
- No replacement announced; Board composition reduced.

## SEC filing metadata
- accession: 0001628280-22-030772
- form_type: 8-K
- ticker: GWH
- cik: 0001819438
- company_name: ESS Tech, Inc.
- filed_at: 2022-11-25T23:59:59+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/1819438/000162828022030772/0001628280-22-030772-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819438/000162828022030772/wk-20221125.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-22-030772
- JSON: https://secwatch.observer/filing/0001628280-22-030772.json
- Plain text: https://secwatch.observer/filing/0001628280-22-030772.txt

## Key facts
- Executive change
  Claudia Gast resigned as Director at ESS Tech, Inc..
  - Action: resigned
  - Role: Director
  source text: On November 25, 2022, Claudia Gast resigned as a member of the Board of Directors
  evidence_url: https://www.sec.gov/Archives/edgar/data/1819438/000162828022030772/0001628280-22-030772-index.htm

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