secwatch / observer
8-K filed June 18, 2026, 5:27 PM ET ticker GWH CIK 0001819438
leadership confidence high sentiment neutral materiality 0.20

Board member Rich Hossfeld resigns; Raffi Garabedian takes audit committee seat.

ESS Tech, Inc.

item 5.02

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Departed

Rich Hossfeld

Director
GWH · ESS Tech, Inc.
Effective
2026-06-12
Successor
Raffi Garabedian
Filed
June 18, 2026, 5:27 PM ET
On June 12, 2026, Rich Hossfeld notified ESS Tech, Inc. (the “Company”) that he is resigning from the board of directors (the “Board”) of the Company and Audit Committee of the Board (the “Audit Committee”), effective as of June 12, 2026.
Appointed

Raffi Garabedian

Audit Committee Member
GWH · ESS Tech, Inc.
Effective
2026-06-12
Filed
June 18, 2026, 5:27 PM ET
Raffi Garabedian will replace Mr. Hossfeld on the Audit Committee, effective as of June 12, 2026.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Rich Hossfeld resigned as Director at ESS Tech, Inc..

Action
resigned
Role
Director
Exact text from the filing
On June 12, 2026, Rich Hossfeld notified ESS Tech, Inc. (the “Company”) that he is resigning from the board of directors (the “Board”) of the Company and Audit Committee of the Board (the “Audit Committee”), effective as of June 12, 2026.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.9

Raffi Garabedian was appointed as Audit Committee Member at ESS Tech, Inc..

Action
appointed
Role
Audit Committee Member
Exact text from the filing
Raffi Garabedian will replace Mr. Hossfeld on the Audit Committee, effective as of June 12, 2026.
View on SEC.gov

ESS Tech, Inc. filing history →

Source: SEC EDGAR
accession 0001819438-26-000049
view filing index on sec.gov
view primary document
Machine-readable: JSON · Markdown · Plain text

This headline and bullets were generated automatically by deepseek-v4-flash:cloud@v2 from the public filing. Read the source on SEC.gov before relying on any specific claim. Not investment advice. See methodology for how this pipeline works.