---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-22-026830"
form_type: "8-K"
ticker: "GWH"
cik: "0001819438"
company_name: "ESS Tech, Inc."
filed_at: "2022-10-24T23:59:59+00:00"
generated_at: "2026-06-23T01:42:32.239516+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# ESS Tech amends bylaws to update advance notice procedures and make technical updates

## Summary
- Board adopted amended and restated bylaws effective October 20, 2022.
- Revised advance notice procedures for director nominations and stockholder proposals.
- Eliminated inoperative provisions and made conforming changes to Delaware law.
- Technical edits and language updates throughout the bylaws.

## SEC filing metadata
- accession: 0001628280-22-026830
- form_type: 8-K
- ticker: GWH
- cik: 0001819438
- company_name: ESS Tech, Inc.
- filed_at: 2022-10-24T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819438/000162828022026830/0001628280-22-026830-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819438/000162828022026830/wk-20221021.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-22-026830
- JSON: https://secwatch.observer/filing/0001628280-22-026830.json
- Plain text: https://secwatch.observer/filing/0001628280-22-026830.txt

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