---
schema_version: "secwatch.filing_event.v1"
accession: "0001819438-25-000019"
form_type: "8-K"
ticker: "GWH"
cik: "0001819438"
company_name: "ESS Tech, Inc."
filed_at: "2025-08-18T23:59:59+00:00"
generated_at: "2026-05-17T12:00:44.470371+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# ESS Tech appoints Jigish Trivedi as COO effective August 18, 2025

## Summary
- Jigish Trivedi appointed COO effective Aug 18, 2025; previously SVP Operations at Electric Hydrogen Co. and senior roles at Micron and First Solar.
- Annual base salary of $375,000; target bonus up to 75% of salary; 275,000 RSUs vesting over four years.
- On termination without cause: 6 months base salary severance and accelerated vesting of RSUs scheduled to vest in 12 months.
- Employment agreement with standard indemnification; full text to be filed as exhibit to next 10-Q.

## SEC filing metadata
- accession: 0001819438-25-000019
- form_type: 8-K
- ticker: GWH
- cik: 0001819438
- company_name: ESS Tech, Inc.
- filed_at: 2025-08-18T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819438/000181943825000019/0001819438-25-000019-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819438/000181943825000019/wk-20250812.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001819438-25-000019
- JSON: https://secwatch.observer/filing/0001819438-25-000019.json
- Plain text: https://secwatch.observer/filing/0001819438-25-000019.txt

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