secwatch.observer — SEC 8-K summary ====================================== Issuer: Amphastar Pharmaceuticals, Inc. (AMPH) CIK: 0001297184 Form: 8-K Filed at: 2025-09-18T23:59:59+00:00 Accession: 0001297184-25-000054 Event type: other_material Sentiment: neutral Materiality: 0.55 Item codes: 1.01 LLM model: deepseek-v4-flash:cloud@v2 Amphastar enters $2.8M R&D agreement with related-party Hanxin for AMP-107 cell banks -------------------------------------------------------------------------------- - Agreement with Nanjing Hanxin to develop Recombinant Peptide Research Cell Banks (RCBs) for product candidate AMP-107. - Total cost not to exceed ~$2.8M; initial payment ~$0.3M; payments in Chinese yuan. - Hanxin majority-owned by CEO Jack Zhang, Chairman Mary Luo, and family; approved by independent audit committee. - Term of three years; all title to RCBs and related IP will belong to Amphastar. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1297184/000129718425000054/0001297184-25-000054-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1297184/000129718425000054/amph-20250915x8k.htm HTML page: https://secwatch.observer/filing/0001297184-25-000054 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer