GWH ESS Tech, Inc.
Price Chart
Executive Summary
ESS Tech, Inc. announced the resignation of Michael Niggli from its Board of Directors, effective at the 2026 annual meeting on May 29, 2026. Niggli, the Founding Chairman, will step down from the Board, Audit Committee, and Nominating and Corporate Governance Committee. The company stated the resignation was not due to any disagreements.
Actionable Insight
Monitor the outcome of the 2026 annual meeting for any updates on board composition or leadership changes. While the resignation is orderly and not contentious, the departure of a founding chairman may signal a transition phase for governance.
Key Facts
- Michael Niggli, Founding Chairman, is resigning from the Board of Directors, Audit Committee, and Nominating and Corporate Governance Committee.
- Resignation is effective as of the 2026 annual meeting of stockholders on May 29, 2026.
- Company stated the resignation was not due to any disagreement on operations, policies, or practices.
- No immediate replacement was named.
Financial Impact
No direct financial impact disclosed.
Risk Factors
- Potential loss of strategic continuity due to departure of Founding Chairman.
- Increased scrutiny on board independence and succession planning.
Market Snapshot
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 8-K Filing (Primary) | 0001819438-26-000022 |
| Document: 0001819438-26-000022-index-headers.html | 0001819438-26-000022 |
| Document: 0001819438-26-000022-index.html | 0001819438-26-000022 |
| Document: 0001819438-26-000022.txt | 0001819438-26-000022 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
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May 26, 2026
19d ago
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Insider Cluster
| $0.9840 $0.9800 | ▼ −0.41% | ▼ −1.61% | $0.8270 (−15.96%) |
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May 26, 2026
19d ago
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Insider Cluster
| $0.9840 $0.9800 | ▼ −0.41% | ▼ −1.61% | $0.8270 (−15.96%) |
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May 26, 2026
19d ago
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Insider Cluster
| $0.9840 $0.9200 | ▼ −6.50% | ▼ −6.97% | $0.8270 (−15.96%) |
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May 7, 2026
5w ago
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8-K
| $0.0156 $0.0125 | ▲ +19.87% | ▲ +21.34% | $0.8270 (−5201.28%) |
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Apr 15, 2026
8w ago
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DEFA14A
| — | awaiting T+5 | — | — |
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Apr 15, 2026
8w ago
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8-K
| — | awaiting T+5 | — | — |
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Mar 5, 2026
14w ago
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8-K
| $1.30 $1.27 | ▼ −2.31% | ▼ −0.78% | $0.8270 (−36.38%) |
US Market Status
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