{"schema_version":"secwatch.filing_event.v1","accession":"0001297184-24-000051","form_type":"8-K","ticker":"AMPH","cik":"0001297184","company_name":"Amphastar Pharmaceuticals, Inc.","filed_at":"2024-08-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:12.498749+00:00","generated_at":"2026-05-31T06:46:12.387009+00:00","sec_items":["1.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Amphastar subsidiary enters exclusive Primatene MIST distribution deal for Greater China; est. $10M over 10 yrs","bullets":["Armstrong (Amphastar subsidiary) appoints Genreach as exclusive distributor for Primatene MIST in Mainland China, Taiwan, Hong Kong, Macau; 10-year term.","Estimated total revenue to Amphastar over 10 years is ~$10 million, subject to currency exchange adjustments.","Genreach is responsible for obtaining all regulatory approvals in the region.","Related-party transaction: CEO Jack Zhang and Chairman Mary Luo beneficially own majority of Hanxin, Genreach's parent.","Minimum purchase amounts per contract year; profit sharing based on Genreach's per unit net revenue."],"urls":{"canonical":"https://secwatch.observer/filing/0001297184-24-000051","json":"https://secwatch.observer/filing/0001297184-24-000051.json","markdown":"https://secwatch.observer/filing/0001297184-24-000051.md","text":"https://secwatch.observer/filing/0001297184-24-000051.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1297184/000129718424000051/0001297184-24-000051-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1297184/000129718424000051/amph-20240828x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T06:46:12.387009+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"}