{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-26-030517","form_type":"8-K","ticker":"APT","cik":"0000884269","company_name":"ALPHA PRO TECH LTD","filed_at":"2026-09-16T16:07:53+00:00","discovered_at":"2026-09-16T16:09:03.363158+00:00","generated_at":"2026-09-16T16:09:09.871703+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Alpha Pro Tech replaces auditor: Tanner LLP out, MNP LLP in","bullets":["Tanner LLP dismissed as independent auditor effective Sept 14, 2026; MNP LLP engaged for FY 2026.","No disagreements or reportable events with Tanner during 2024, 2025, and interim period to Sept 14, 2026.","Tanner's reports for FY 2024 and FY 2025 were unqualified, with no adverse or modified opinions.","Tanner letter to SEC dated Sept 16, 2026 agrees with company disclosures."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-26-030517","json":"https://secwatch.observer/filing/0001437749-26-030517.json","markdown":"https://secwatch.observer/filing/0001437749-26-030517.md","text":"https://secwatch.observer/filing/0001437749-26-030517.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/884269/000143774926030517/0001437749-26-030517-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/884269/000143774926030517/apt20260915_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-16T16:09:09.871703+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}