{"schema_version":"secwatch.filing_event.v1","accession":"0001297184-22-000048","form_type":"8-K","ticker":"AMPH","cik":"0001297184","company_name":"Amphastar Pharmaceuticals, Inc.","filed_at":"2022-08-09T23:59:59+00:00","discovered_at":"2026-05-14T18:03:55.306913+00:00","generated_at":"2026-06-24T01:50:11.908281+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Amphastar expands board to 10, appoints CFO Peters and EVP Liawatidewi as directors","bullets":["Board size increased from 8 to 10, effective August 4, 2022.","William J. Peters (CFO, EVP Finance, Treasurer) appointed as Class I director.","Jacob Liawatidewi (EVP Corporate Administration & Sales/Marketing) appointed as Class I director.","Diane G. Gerst deemed independent; now six of ten directors are independent.","No changes to existing compensatory arrangements for the new directors."],"urls":{"canonical":"https://secwatch.observer/filing/0001297184-22-000048","json":"https://secwatch.observer/filing/0001297184-22-000048.json","markdown":"https://secwatch.observer/filing/0001297184-22-000048.md","text":"https://secwatch.observer/filing/0001297184-22-000048.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1297184/000129718422000048/0001297184-22-000048-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1297184/000129718422000048/amph-20220804x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-24T01:50:11.908281+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":"c12fd75d73","claim":"William J. Peters was appointed as Class I Director at Amphastar Pharmaceuticals, Inc..","evidence_excerpt":"appointed each of William J. Peters, the Company’s Chief Financial Officer, Executive Vice President of Finance, and Treasurer, and Jacob Liawatidewi, the Company’s Executive Vice President of Corporate Administration Center, and Sales and Marketing (together with Mr. Peters, the “New Directors”), to serve as Class I directors","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718422000048/0001297184-22-000048-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Class I Director"}],"fact_type":"executive_change"},{"claim_id":"d2f2ac4ea2","claim":"Jacob Liawatidewi was appointed as Class I Director at Amphastar Pharmaceuticals, Inc..","evidence_excerpt":"appointed each of William J. Peters, the Company’s Chief Financial Officer, Executive Vice President of Finance, and Treasurer, and Jacob Liawatidewi, the Company’s Executive Vice President of Corporate Administration Center, and Sales and Marketing (together with Mr. Peters, the “New Directors”), to serve as Class I directors","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718422000048/0001297184-22-000048-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Class I Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}