{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-24-037557","form_type":"8-K","ticker":"CYAN","cik":"0000768408","company_name":"CYANOTECH CORP","filed_at":"2024-12-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:10.999377+00:00","generated_at":"2026-05-29T03:11:59.844732+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Cyanotech dismisses Grant Thornton, appoints BPM as new auditor for FY2025","bullets":["Audit Committee dismissed Grant Thornton on Dec 10, 2024; no adverse opinions or disagreements in prior years.","BPM LLP appointed as independent registered public accounting firm for fiscal year ending March 31, 2025.","No prior consultations or disagreements with BPM were reported.","Grant Thornton provided a letter agreeing with the company's disclosures; filed as Exhibit 16.1."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-24-037557","json":"https://secwatch.observer/filing/0001437749-24-037557.json","markdown":"https://secwatch.observer/filing/0001437749-24-037557.md","text":"https://secwatch.observer/filing/0001437749-24-037557.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/768408/000143774924037557/0001437749-24-037557-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/768408/000143774924037557/cyan20241214_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T03:11:59.844732+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":"19b9dfe1d3651279b227d23626f47609c2af7370","claim":"CYANOTECH CORP dismissed Grant Thornton LLP as its auditor.","evidence_excerpt":"On December 10, 2024, the Audit Committee dismissed Grant Thornton as the Company’s independent registered accounting firm.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/768408/000143774924037557/0001437749-24-037557-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"dismissal"},{"label":"Auditor","value":"Grant Thornton LLP"},{"label":"Successor","value":"BPM LLP"}],"fact_type":"auditor_change"},{"claim_id":"faad66a770798601c676f2d5d73d6fa4f026213a","claim":"CYANOTECH CORP engaged BPM LLP as its auditor.","evidence_excerpt":"On December 10, 2024, with the Audit Committee’s approval, the Company appointed BPM as the Company’s independent registered public accounting firm for the fiscal year ending March 31, 2025.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/768408/000143774924037557/0001437749-24-037557-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"engagement"},{"label":"Auditor","value":"BPM LLP"}],"fact_type":"auditor_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}