# Amphastar Pharmaceuticals, Inc. > Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero. ## Record | Field | Value | | --- | --- | | Representation | alpha-profile-markdown-v3 | | Protocol | Alpha Governance Facts Protocol 0.1 | | Schema | alpha.governance.entity.public.v1 | | Record version | public-1 | | Canonical entity | alpha:company:380224c7-eafa-4d64-9d0c-7f061a379958 | | Entity type | Company | | Canonical URL | https://registry.alpha.ac/companies/amphastar-pharmaceuticals-inc | | Publication | PUBLISHED | | Verification | source_reported | | Verification schema | alpha-verification-states-v1 | | Ownership | unclaimed | | Published claims | 21 | | Claims under review | 1 | | Evidence records | 4 | | Conflicts | 0 | | Conflicts in internal review | 0 | | Observed | 2026-09-14T14:36:23.732814+00:00 | | Last reviewed | 2026-09-14T14:36:23.732814+00:00 | ## Identity - Legal name: Amphastar Pharmaceuticals, Inc. - Display name: Amphastar Pharmaceuticals, Inc. ## Leadership - David Gaugh: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Diane G. Gerst: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Floyd F. Petersen: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Gayle Deflin: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Hsin-Liang Lee: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Jacob Liawatidewi: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Jun Zhang: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Mary Ziping Luo: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Michael A. Zasloff: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Richard Prins: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - William J. Peters: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2. - Jack Yongfeng Zhang: Chief Executive Officer, President, Chief Scientific Officer and Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:3. - Jack Yongfeng Zhang, Ph.D: Chief Executive Officer, President, Chief Scientific Officer and Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:4. - Jacob Liawatidewi: Executive Vice President of Sales and Marketing and Corporate Administration Center, President of Amphastar France Pharmaceuticals, S.A.S., Corporate Secretary and Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:3. - Mary Ziping Luo: Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:3. - Mary Ziping Luo, Ph.D: Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:4. - Rong Zhou: Senior Executive Vice President of Production Center; Executive Vice President of Scientific Affairs and President of Amphastar Nanjing Pharmaceuticals, Co., Ltd.. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:3. - William J. Peters: Chief Financial Officer, Executive Vice President of Finance, and Treasurer; President of International Medication Systems, Limited and Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:3. ## Roles - PUBLISHED ## Governance - NOT_ASSERTED ## Board committees - PUBLISHED ## Financials - NOT_ASSERTED ## Workforce - NOT_ASSERTED ## Market and index context - PUBLISHED ## Legal Name - Amphastar Pharmaceuticals, Inc.. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:1. ## Headquarters - US. Publication: UNDER_REVIEW. Verification: source_reported. Assertion: source_reported. Evidence: unlinked, under review. ## Entity Status - Public listing published. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:1. ## Published Fact - US. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:1. ## Coverage states | Field | Value | | --- | --- | | Identity | PUBLISHED | | Business | PUBLISHED | | Leadership | PUBLISHED | | Board and committees | PUBLISHED | | Governance | NOT_ASSERTED | | Financials | NOT_ASSERTED | | Workforce | NOT_ASSERTED | | Ownership | NOT_ASSERTED | | Ratings | NOT_PUBLISHED | | Market and index context | PUBLISHED | ## Public sources - alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:1: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc). - alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:2: [Amphastar Pharmaceuticals, Inc. DEF 14A 2026-04-13](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:3: [AMPH DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:evidence:company:380224c7-eafa-4d64-9d0c-7f061a379958:4: AMPH executive roster source. ## Rights | Field | Value | | --- | --- | | public_retrieval | allowed | | agent_retrieval | allowed | | redistribution | not_granted | | model_training | not_granted | | commercial_use | not_specified | | relationship_pathfinding | not_granted | | direct_contact | not_granted | ## Limitations - Absence of a leadership role, committee, or disclosure is not evidence that it does not exist. - Only explicitly published canonical company identity and current confirmed public roles are included. - Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist. - Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights. - This Company Profile is an identity and evidence record, not an Alpha rating. - Current index memberships: Unavailable - Index membership events: Unavailable ## Alternate representations - [Canonical profile](https://registry.alpha.ac/companies/amphastar-pharmaceuticals-inc) - [Public Markdown](https://registry.alpha.ac/companies/amphastar-pharmaceuticals-inc.md) - [Public JSON](https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc) - [JSON-LD](https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=jsonld) - MCP resource: `alpha://companies/amphastar-pharmaceuticals-inc` at https://mcp.alpha.ac/mcp