{"filing":{"accession_number":"0001819438-26-000044","cik":"0001819438","ticker":"GWH-WT","company_name":"ESS Tech, Inc.","form":"8-K","filing_date":"2026-06-15","report_date":null,"primary_document":"wk-20260609.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1819438/000181943826000044/wk-20260609.htm"},"events":[{"id":10946,"run_id":9596,"accession_number":"0001819438-26-000044","anchor_item_number":"3.01","event_type":"delisting_risk","event_domain":"terminal","is_material":true,"confidence":0.98,"summary":"ESS Tech received a written notice from NYSE on June 9, 2026, indicating failure to satisfy the continued listing standard under Section 802.01C due to average closing price below $1.00 per share. The company has a six-month cure period and may pursue remedies including a reverse stock split to regain compliance.","company_name":"ESS Tech, Inc.","ticker":"GWH-WT","filing_date":"2026-06-15","form":"8-K","submitted_at":null,"items":[{"id":7400,"accession_number":"0001819438-26-000044","item_number":"3.01","item_title":"Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.","event_type":"delisting_risk","event_domain":"terminal","is_material":true,"confidence":0.98,"reasoning":"ESS Tech received a written notice from NYSE on June 9, 2026, indicating failure to satisfy the continued listing standard under Section 802.01C due to average closing price below $1.00 per share ($0.98 as of June 8, 2026). While currently a deficiency notice rather than delisting, the disclosure explicitly addresses the failure to meet a continued listing rule and outlines the six-month cure period and potential remedies including reverse stock split. This is a material event that directly affects the registrant's listing status and would significantly impact investor assessment.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-15T13:01:08.108919+00:00","company_name":"","ticker":null,"filing_date":""}]},{"id":10947,"run_id":9596,"accession_number":"0001819438-26-000044","anchor_item_number":"7.01","event_type":"other_material","event_domain":"catchall","is_material":false,"confidence":0.45,"summary":"A press release was issued on June 15, 2026 and furnished under Regulation FD as Exhibit 99.1; the specific content of the press release is not disclosed in the Item 7.01 text.","company_name":"ESS Tech, Inc.","ticker":"GWH-WT","filing_date":"2026-06-15","form":"8-K","submitted_at":null,"items":[{"id":7401,"accession_number":"0001819438-26-000044","item_number":"7.01","item_title":"Regulation FD Disclosure.","event_type":"other_material","event_domain":"catchall","is_material":false,"confidence":0.45,"reasoning":"The filing discloses only that a press release was issued on June 15, 2026 and attached as Exhibit 99.1, with standard Regulation FD safe-harbor language. The actual content of the press release is not provided in the section text, making it impossible to determine the specific event type. Without visibility into what the press release announces, this appears to be a procedural disclosure under Item 7.01 rather than a substantive material event announcement.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-15T13:01:08.108919+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":7400,"accession_number":"0001819438-26-000044","item_number":"3.01","item_title":"Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.","event_type":"delisting_risk","event_domain":"terminal","is_material":true,"confidence":0.98,"reasoning":"ESS Tech received a written notice from NYSE on June 9, 2026, indicating failure to satisfy the continued listing standard under Section 802.01C due to average closing price below $1.00 per share ($0.98 as of June 8, 2026). While currently a deficiency notice rather than delisting, the disclosure explicitly addresses the failure to meet a continued listing rule and outlines the six-month cure period and potential remedies including reverse stock split. This is a material event that directly affects the registrant's listing status and would significantly impact investor assessment.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-15T13:01:08.108919+00:00","company_name":"ESS Tech, Inc.","ticker":"GWH-WT","filing_date":"2026-06-15"},{"id":7401,"accession_number":"0001819438-26-000044","item_number":"7.01","item_title":"Regulation FD Disclosure.","event_type":"other_material","event_domain":"catchall","is_material":false,"confidence":0.45,"reasoning":"The filing discloses only that a press release was issued on June 15, 2026 and attached as Exhibit 99.1, with standard Regulation FD safe-harbor language. The actual content of the press release is not provided in the section text, making it impossible to determine the specific event type. Without visibility into what the press release announces, this appears to be a procedural disclosure under Item 7.01 rather than a substantive material event announcement.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-15T13:01:08.108919+00:00","company_name":"ESS Tech, Inc.","ticker":"GWH-WT","filing_date":"2026-06-15"}]}