{"schema_version":"secwatch.filing_event.v1","accession":"0001802457-23-000024","form_type":"8-K","ticker":"ORGN","cik":"0001802457","company_name":"Origin Materials, Inc.","filed_at":"2023-03-09T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.633348+00:00","generated_at":"2026-06-18T07:29:20.138320+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Origin Materials dismisses Grant Thornton, appoints Deloitte as auditor for FY2023","bullets":["Audit Committee dismissed Grant Thornton as independent auditor on March 6, 2023; no disagreements in FY2022 or FY2021.","Deloitte & Touche appointed as new independent registered public accounting firm for fiscal year ending December 31, 2023.","Previously reported material weakness in internal control over financial reporting for 2021 has been remediated.","Grant Thornton furnished a letter agreeing with the Company's statements, filed as Exhibit 16.1."],"urls":{"canonical":"https://secwatch.observer/filing/0001802457-23-000024","json":"https://secwatch.observer/filing/0001802457-23-000024.json","markdown":"https://secwatch.observer/filing/0001802457-23-000024.md","text":"https://secwatch.observer/filing/0001802457-23-000024.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1802457/000180245723000024/0001802457-23-000024-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1802457/000180245723000024/orgn-20230306.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T07:29:20.138320+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"47e709d3aebe031924a26babf0a4071327135d10","claim":"Origin Materials, Inc. engaged Deloitte & Touche LLP as its auditor.","evidence_excerpt":"On March 6, 2023, the Audit Committee approved the appointment of Deloitte & Touche LLP (\"Deloitte\") as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2023.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1802457/000180245723000024/0001802457-23-000024-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"engagement"},{"label":"Auditor","value":"Deloitte & Touche LLP"}],"fact_type":"auditor_change"},{"claim_id":"7cbc84f200b8988e057576f25af006b2cf87df38","claim":"Origin Materials, Inc. dismissed Grant Thornton LLP as its auditor.","evidence_excerpt":"On March 6, 2023, the Audit Committee approved the dismissal of the Grant Thornton LLP (\"GT\") as the Company's independent registered public accounting firm.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1802457/000180245723000024/0001802457-23-000024-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"dismissal"},{"label":"Auditor","value":"Grant Thornton LLP"},{"label":"Successor","value":"Deloitte & Touche LLP"}],"fact_type":"auditor_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}