# Amphastar Pharmaceuticals, Inc. > Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero. ## Record | Field | Value | | --- | --- | | Representation | alpha-profile-markdown-v4 | | Protocol | Alpha Governance Facts Protocol 0.1 | | Schema | alpha.governance.entity.public.v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | Governance record representation | alpha-governance-record-v2 | | 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 | 34 | | Claims under review | 1 | | Evidence records | 10 | | Conflicts | 0 | | Conflicts in internal review | 0 | | Observed | 2026-10-18T07:12:02.527648+00:00 | | Last reviewed | 2026-10-18T07:12:02.527648+00:00 | ## Identity - Legal name: Amphastar Pharmaceuticals, Inc. - Display name: Amphastar Pharmaceuticals, Inc. ## Alpha Governance Record | Field | Value | | --- | --- | | Governance Record schema | alpha-governance-record-v2 | | Ontology | alpha-governance-ontology-v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | As of | 2026-10-18T09:50:27.719043+00:00 | | Completeness | 0.409 | | Record Quality | 0.836 | | Directors | 11 | | Committees | 8 | | Governance events | 27 | | Entity class | public_company | ## Section coverage | Section | State | | --- | --- | | identity | PUBLISHED | | corporate_structure | NOT_REVIEWED | | board | PUBLISHED | | committees | PUBLISHED | | leadership | PUBLISHED | | ownership | NOT_REVIEWED | | financials | NOT_REVIEWED | | capital_structure | PUBLISHED | | compensation | NOT_REVIEWED | | governance | NOT_REVIEWED | | shareholder_governance | NOT_REVIEWED | | audit | NOT_REVIEWED | | legal | NOT_REVIEWED | | risk | NOT_REVIEWED | | cyber | NOT_REVIEWED | | ai_governance | NOT_REVIEWED | | agent_governance | RESTRICTED | | markets_external | NOT_REVIEWED | | events | PUBLISHED | | relationships | PUBLISHED | | assessments | PUBLISHED | | evidence | PUBLISHED | ## Board - David Gaugh: Director. Status: current. Independent: true. Since: 2025-01-01. Committees: Compensation (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:5 - Diane G. Gerst: Director. Status: current. Independent: true. Since: 2019-01-01. Committees: Nominating and Governance (chair); Nominating and Governance · Chair (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:6 - Floyd F. Petersen: Director. Status: current. Independent: true. Since: 2004-01-01. Committees: Compensation (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:7 - Gayle Deflin: Director. Status: current. Independent: true. Since: 2021-01-01. Committees: Audit (chair); Audit · Chair (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:8 - Hsin-Liang Lee: Director. Status: current. Independent: true. Since: 2008-01-01. Committees: Audit (member); Audit; Nominating and Governance (member); Nominating and Governance (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:9 - Jacob Liawatidewi: Director. Status: current. Independent: false. Since: 2022-01-01. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:10 - Jun Zhang: Director. Status: current. Independent: false. Since: 1996-01-01. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:11 - Mary Ziping Luo: Director. Status: current. Independent: false. Since: 1996-01-01. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:12 - Michael A. Zasloff: Director. Status: current. Independent: true. Since: 2005-01-01. Committees: Compensation (member); Compensation; Nominating and Governance (member); Nominating and Governance (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:13 - Richard Prins: Director. Status: current. Independent: true. Since: 2002-01-01. Committees: Compensation (chair); Compensation · Chair (member). claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:14 - William J. Peters: Director. Status: current. Independent: false. Since: 2022-01-01. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:15 ## Committees - Audit (audit). Chair: Gayle Deflin. Members: Gayle Deflin (chair, current); Hsin-Liang Lee (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:audit - Audit · Chair (audit). Chair: NOT_PUBLISHED. Members: Gayle Deflin (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:audit-chair - Audit; Nominating and Governance (audit). Chair: NOT_PUBLISHED. Members: Hsin-Liang Lee (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:audit-nominating-and-governance - Compensation (compensation). Chair: Richard Prins. Members: Richard Prins (chair, current); David Gaugh (member, current); Floyd F. Petersen (member, current); Michael A. Zasloff (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:compensation - Compensation · Chair (compensation). Chair: NOT_PUBLISHED. Members: Richard Prins (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:compensation-chair - Compensation; Nominating and Governance (compensation). Chair: NOT_PUBLISHED. Members: Michael A. Zasloff (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:compensation-nominating-and-governance - Nominating and Governance (nominating_governance). Chair: Diane G. Gerst. Members: Diane G. Gerst (chair, current); Hsin-Liang Lee (member, current); Michael A. Zasloff (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:nominating-and-governance - Nominating and Governance · Chair (nominating_governance). Chair: NOT_PUBLISHED. Members: Diane G. Gerst (member, current). committee_id=alpha:committee:amphastar-pharmaceuticals-inc:nominating-and-governance-chair ## Executive leadership - Jack Yongfeng Zhang: Chief Executive Officer, President, Chief Scientific Officer and Director [CEO]. Status: current. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:16 - 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 [CORPORATE_SECRETARY]. Status: current. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:18 - Mary Ziping Luo: Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors [COO]. Status: current. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:19 - Rong Zhou: Senior Executive Vice President of Production Center; Executive Vice President of Scientific Affairs and President of Amphastar Nanjing Pharmaceuticals, Co., Ltd. [PRESIDENT]. Status: current. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:21 - William J. Peters: Chief Financial Officer, Executive Vice President of Finance, and Treasurer; President of International Medication Systems, Limited and Director [CFO]. Status: current. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:22 - Jack Yongfeng Zhang, Ph.D: Chief Executive Officer, President, Chief Scientific Officer and Director [CEO]. Status: unknown. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:17 - Mary Ziping Luo, Ph.D: Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors [COO]. Status: unknown. claim_id=alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:20 ## Governance events - CEO_CHANGED: Jack Yongfeng Zhang executive of Amphastar Pharmaceuticals, Inc., effective 2026-04-13. Effective: 2026-04-13. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:uq6hxy1t75mw - EXECUTIVE_APPOINTED: Jacob Liawatidewi executive of Amphastar Pharmaceuticals, Inc., effective 2026-04-13. Effective: 2026-04-13. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1bxw76v1gigs1d - EXECUTIVE_APPOINTED: Mary Ziping Luo executive of Amphastar Pharmaceuticals, Inc., effective 2026-04-13. Effective: 2026-04-13. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:vjwshs1qzflts - EXECUTIVE_APPOINTED: Rong Zhou executive of Amphastar Pharmaceuticals, Inc., effective 2026-04-13. Effective: 2026-04-13. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1a9rqm33lgfpf - CFO_CHANGED: William J. Peters executive of Amphastar Pharmaceuticals, Inc., effective 2026-04-13. Effective: 2026-04-13. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:386z0d1ybw9th - DIRECTOR_APPOINTED: David Gaugh seat on Amphastar Pharmaceuticals, Inc., effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:108gw4q1xaeh6i - COMMITTEE_MEMBER_ADDED: David Gaugh member of Compensation, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1p1l7r71kgtu03 - DIRECTOR_APPOINTED: Jacob Liawatidewi seat on Amphastar Pharmaceuticals, Inc., effective 2022-01-01. Effective: 2022-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:xnl6xnyxz2ol - DIRECTOR_APPOINTED: William J. Peters seat on Amphastar Pharmaceuticals, Inc., effective 2022-01-01. Effective: 2022-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:a65xms15263qk - DIRECTOR_APPOINTED: Gayle Deflin seat on Amphastar Pharmaceuticals, Inc., effective 2021-01-01. Effective: 2021-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:x7p289ld123j - COMMITTEE_CREATED: Audit · Chair committee of Amphastar Pharmaceuticals, Inc., effective 2021-01-01. Effective: 2021-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1f23dvt1hd6wg7 - COMMITTEE_MEMBER_ADDED: Gayle Deflin member of Audit · Chair, effective 2021-01-01. Effective: 2021-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:60ky6l1kkj2u9 - DIRECTOR_APPOINTED: Diane G. Gerst seat on Amphastar Pharmaceuticals, Inc., effective 2019-01-01. Effective: 2019-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1wegxz81u0mjxu - COMMITTEE_CREATED: Nominating and Governance · Chair committee of Amphastar Pharmaceuticals, Inc., effective 2019-01-01. Effective: 2019-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1euclougbcg6 - COMMITTEE_MEMBER_ADDED: Diane G. Gerst member of Nominating and Governance · Chair, effective 2019-01-01. Effective: 2019-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1tem2o41k2ld3i - DIRECTOR_APPOINTED: Hsin-Liang Lee seat on Amphastar Pharmaceuticals, Inc., effective 2008-01-01. Effective: 2008-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1ael5jl8k58pl - COMMITTEE_CREATED: Audit; Nominating and Governance committee of Amphastar Pharmaceuticals, Inc., effective 2008-01-01. Effective: 2008-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1pdbx4r45qo45 - COMMITTEE_MEMBER_ADDED: Hsin-Liang Lee member of Audit; Nominating and Governance, effective 2008-01-01. Effective: 2008-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:jy0hv31ju8n0l - DIRECTOR_APPOINTED: Michael A. Zasloff seat on Amphastar Pharmaceuticals, Inc., effective 2005-01-01. Effective: 2005-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1sym7o35v1dzr - COMMITTEE_CREATED: Compensation; Nominating and Governance committee of Amphastar Pharmaceuticals, Inc., effective 2005-01-01. Effective: 2005-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1c3em111rvh6nn - COMMITTEE_MEMBER_ADDED: Michael A. Zasloff member of Compensation; Nominating and Governance, effective 2005-01-01. Effective: 2005-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:d9j8gy9uvnvq - DIRECTOR_APPOINTED: Floyd F. Petersen seat on Amphastar Pharmaceuticals, Inc., effective 2004-01-01. Effective: 2004-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1sn6cwziimgxn - DIRECTOR_APPOINTED: Richard Prins seat on Amphastar Pharmaceuticals, Inc., effective 2002-01-01. Effective: 2002-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1wjme69ywq2eb - COMMITTEE_CREATED: Compensation · Chair committee of Amphastar Pharmaceuticals, Inc., effective 2002-01-01. Effective: 2002-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:cbrtuv1fuf5jr - COMMITTEE_MEMBER_ADDED: Richard Prins member of Compensation · Chair, effective 2002-01-01. Effective: 2002-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:6f0xym7il6x4 - DIRECTOR_APPOINTED: Jun Zhang seat on Amphastar Pharmaceuticals, Inc., effective 1996-01-01. Effective: 1996-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:oi445h1sv0oqt - DIRECTOR_APPOINTED: Mary Ziping Luo seat on Amphastar Pharmaceuticals, Inc., effective 1996-01-01. Effective: 1996-01-01. Detected: 2026-10-18T07:12:02.527648+00:00. event_id=alpha:event:transition:1ndwsf8ai4pt6 ## Scoped resources - `alpha://company/amphastar-pharmaceuticals-inc` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record - `alpha://company/amphastar-pharmaceuticals-inc/identity` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=identity - `alpha://company/amphastar-pharmaceuticals-inc/corporate-structure` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=corporate-structure - `alpha://company/amphastar-pharmaceuticals-inc/board` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=board - `alpha://company/amphastar-pharmaceuticals-inc/committees` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=committees - `alpha://company/amphastar-pharmaceuticals-inc/leadership` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=leadership - `alpha://company/amphastar-pharmaceuticals-inc/ownership` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=ownership - `alpha://company/amphastar-pharmaceuticals-inc/financials` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=financials - `alpha://company/amphastar-pharmaceuticals-inc/capital-structure` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=capital-structure - `alpha://company/amphastar-pharmaceuticals-inc/compensation` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=compensation - `alpha://company/amphastar-pharmaceuticals-inc/governance` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=governance - `alpha://company/amphastar-pharmaceuticals-inc/shareholder-governance` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=shareholder-governance - `alpha://company/amphastar-pharmaceuticals-inc/audit` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=audit - `alpha://company/amphastar-pharmaceuticals-inc/legal` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=legal - `alpha://company/amphastar-pharmaceuticals-inc/risk` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=risk - `alpha://company/amphastar-pharmaceuticals-inc/cyber` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=cyber - `alpha://company/amphastar-pharmaceuticals-inc/ai-governance` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=ai-governance - `alpha://company/amphastar-pharmaceuticals-inc/agents` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=agents - `alpha://company/amphastar-pharmaceuticals-inc/ecosystem` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=ecosystem - `alpha://company/amphastar-pharmaceuticals-inc/events` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=events - `alpha://company/amphastar-pharmaceuticals-inc/relationships` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=relationships - `alpha://company/amphastar-pharmaceuticals-inc/assessments` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=assessments - `alpha://company/amphastar-pharmaceuticals-inc/evidence` (contract): https://registry.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc?format=record§ion=evidence ## Role modules - NOT_ASSERTED ## Attention - NO_RECORDS_FOUND ## Committee data - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:24: `{"kind":"committee_appointment","original_name":"Audit","category":"audit","role":"chair","person":{"alpha_id":"alpha:person:gayle-deflin","name":"Gayle Deflin"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:25: `{"kind":"committee_appointment","original_name":"Audit","category":"audit","role":"member","person":{"alpha_id":"alpha:person:howard-lee","name":"Hsin-Liang Lee"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:27: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"chair","person":{"alpha_id":"alpha:person:richard-prins","name":"Richard Prins"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:28: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"member","person":{"alpha_id":"alpha:person:david-gaugh","name":"David Gaugh"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:29: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"member","person":{"alpha_id":"alpha:person:floyd-f-petersen","name":"Floyd F. Petersen"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:30: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"member","person":{"alpha_id":"alpha:person:michael-a-zasloff","name":"Michael A. Zasloff"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:32: `{"kind":"committee_appointment","original_name":"Nominating and Governance","category":"nominating_governance","role":"chair","person":{"alpha_id":"alpha:person:diane-g-gerst","name":"Diane G. Gerst"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:33: `{"kind":"committee_appointment","original_name":"Nominating and Governance","category":"nominating_governance","role":"member","person":{"alpha_id":"alpha:person:howard-lee","name":"Hsin-Liang Lee"},"source_id":"board_seats"}` - Claim alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:34: `{"kind":"committee_appointment","original_name":"Nominating and Governance","category":"nominating_governance","role":"member","person":{"alpha_id":"alpha:person:michael-a-zasloff","name":"Michael A. Zasloff"},"source_id":"board_seats"}` ## Leadership - David Gaugh: Director, Compensation. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:5. Valid from: 2025-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Diane G. Gerst: Director, Nominating and Governance · Chair. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:6. Valid from: 2019-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Floyd F. Petersen: Director, Compensation. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:7. Valid from: 2004-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Gayle Deflin: Director, Audit · Chair. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:8. Valid from: 2021-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Hsin-Liang Lee: Director, Audit; Nominating and Governance. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:9. Valid from: 2008-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Jacob Liawatidewi: Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:10. Valid from: 2022-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Jun Zhang: Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:11. Valid from: 1996-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Mary Ziping Luo: Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:12. Valid from: 1996-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Michael A. Zasloff: Director, Compensation; Nominating and Governance. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:13. Valid from: 2005-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Richard Prins: Director, Compensation · Chair. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:14. Valid from: 2002-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - William J. Peters: Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:15. Valid from: 2022-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3. - Jack Yongfeng Zhang: Chief Executive Officer, President, Chief Scientific Officer and Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:16. Valid from: 2026-04-13. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:32b1130260206893acefece883c434135f182b3f83c79b27c481aafe9b4b981d. - Jack Yongfeng Zhang, Ph.D: Chief Executive Officer, President, Chief Scientific Officer and Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:17. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:657d1a4892f6ab7d2c4707d327524b96212ceefa506296136be50a07b3f0f91c. - 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. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:18. Valid from: 2026-04-13. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:5c9c63aa04e1662fcc4d35c666b57938ccbfd0b7d1bd96f86579ff027a71feb1. - Mary Ziping Luo: Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:19. Valid from: 2026-04-13. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:4247b61eb599a4118ff37966ea6edc267d66c1db095cb56397f2bd3fd49a6517. - Mary Ziping Luo, Ph.D: Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:20. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:0c2897f1cc2928d4766c2f2bd16d4e4a1da44f66b276e412943f7148341edafc. - Rong Zhou: Senior Executive Vice President of Production Center; Executive Vice President of Scientific Affairs and President of Amphastar Nanjing Pharmaceuticals, Co., Ltd.. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:21. Valid from: 2026-04-13. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:29b2ff5e6d6a4eb936761de7e89e6b82f74c9adef3d42e36600932853374e027. - William J. Peters: Chief Financial Officer, Executive Vice President of Finance, and Treasurer; President of International Medication Systems, Limited and Director. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:leadership_role:22. Valid from: 2026-04-13. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:f410f0e95406fbcaaccc89289789094f061aa0ff5fe834253c28897170b46597. ## Roles - PUBLISHED ## Governance - NOT_ASSERTED ## Board committees - Audit: Chair Gayle Deflin; Members Gayle Deflin (Chair); Hsin-Liang Lee. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_record:23. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Compensation: Chair Richard Prins; Members Richard Prins (Chair); David Gaugh; Floyd F. Petersen; Michael A. Zasloff. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_record:26. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Nominating and Governance: Chair Diane G. Gerst; Members Diane G. Gerst (Chair); Hsin-Liang Lee; Michael A. Zasloff. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_record:31. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. ## Financials - NOT_ASSERTED ## Workforce - NOT_ASSERTED ## Market and index context - PUBLISHED ## Legal Name - Amphastar Pharmaceuticals, Inc.. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:legal_name:1. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:17c20359f103200bf85df0773c696db2f0d0db580f98c86f564c7b8da3b298bb. ## Entity Status - Public listing published. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:entity_status:3. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:17c20359f103200bf85df0773c696db2f0d0db580f98c86f564c7b8da3b298bb. ## Published Fact - US. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:published_fact:4. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:17c20359f103200bf85df0773c696db2f0d0db580f98c86f564c7b8da3b298bb. ## Committee Appointment - Gayle Deflin: chair, Audit. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:24. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Hsin-Liang Lee: member, Audit. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:25. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Richard Prins: chair, Compensation. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:27. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - David Gaugh: member, Compensation. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:28. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Floyd F. Petersen: member, Compensation. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:29. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Michael A. Zasloff: member, Compensation. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:30. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Diane G. Gerst: chair, Nominating and Governance. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:32. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Hsin-Liang Lee: member, Nominating and Governance. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:33. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. - Michael A. Zasloff: member, Nominating and Governance. Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:committee_appointment:34. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6. ## Security Listing - AMPH (NASDAQ). Claim: alpha:claim:company:380224c7-eafa-4d64-9d0c-7f061a379958:security_listing:35. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:17c20359f103200bf85df0773c696db2f0d0db580f98c86f564c7b8da3b298bb. ## 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:projection-evidence:17c20359f103200bf85df0773c696db2f0d0db580f98c86f564c7b8da3b298bb: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/amphastar-pharmaceuticals-inc). - alpha:projection-evidence:document:c1a5491ca260057ed8b8a55b6897593ce803406269722f8e45993f4a68f66fa3: [Amphastar Pharmaceuticals, Inc. DEF 14A 2026-04-13](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:projection-evidence:document:32b1130260206893acefece883c434135f182b3f83c79b27c481aafe9b4b981d: [AMPH DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:projection-evidence:document:657d1a4892f6ab7d2c4707d327524b96212ceefa506296136be50a07b3f0f91c: AMPH executive roster source. - alpha:projection-evidence:document:5c9c63aa04e1662fcc4d35c666b57938ccbfd0b7d1bd96f86579ff027a71feb1: [AMPH DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:projection-evidence:document:4247b61eb599a4118ff37966ea6edc267d66c1db095cb56397f2bd3fd49a6517: [AMPH DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:projection-evidence:document:0c2897f1cc2928d4766c2f2bd16d4e4a1da44f66b276e412943f7148341edafc: AMPH executive roster source. - alpha:projection-evidence:document:29b2ff5e6d6a4eb936761de7e89e6b82f74c9adef3d42e36600932853374e027: [AMPH DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:projection-evidence:document:f410f0e95406fbcaaccc89289789094f061aa0ff5fe834253c28897170b46597: [AMPH DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). - alpha:projection-evidence:2d692723467ea99beb14273c5ec14a19215bdce4b302ceec4aa5acf0dbc940a6: [Audit](https://www.sec.gov/Archives/edgar/data/1297184/000129718426000023/amph-20260601xdef14a.htm). ## 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. ## 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?format=record) - [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 ## Connected governance records Only explicitly published, rights-cleared records. Missing records do not establish absence, safety, or complete coverage. ## Critical-risk oversight Snapshot as of 2026-10-18T09:50:27.524816+00:00; recorded 2026-10-18T09:50:27.524816+00:00. Every published assignment for this snapshot is listed. Only explicitly reviewed, rights-cleared assignments in effect on the as-of date, in the company's own wording. An assignment shows where oversight is placed, not whether it is effective. Missing records do not establish absence.