{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-082772","form_type":"8-K","ticker":"AMPH","cik":"0001297184","company_name":"Amphastar Pharmaceuticals, Inc.","filed_at":"2026-07-13T10:01:01+00:00","discovered_at":"2026-07-13T10:05:00.256954+00:00","generated_at":"2026-07-13T10:05:28.979916+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Amphastar appoints Anthony Pierce to board, expands to 11 directors","bullets":["Board increased from 10 to 11 directors; Anthony Pierce appointed as Class III director effective July 9, 2026.","Pierce is independent under Nasdaq standards; no committee assignments at this time.","Annual cash retainer of $55,000 (pro-rated); initial equity grant of $300,000 (50% RSUs, 50% options) vests on first anniversary.","Standard indemnification agreement to be entered with Pierce; no reportable transactions under Item 404(a)."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-082772","json":"https://secwatch.observer/filing/0001104659-26-082772.json","markdown":"https://secwatch.observer/filing/0001104659-26-082772.md","text":"https://secwatch.observer/filing/0001104659-26-082772.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1297184/000110465926082772/0001104659-26-082772-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1297184/000110465926082772/amph-20260709x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-13T10:05:28.979916+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"}