Company overview

Business, legal identity, ownership structure and classifications.

What the company does

About

Alpha's canonical identity and public leadership record for Amphastar Pharmaceuticals, Inc..

Sector and industry values retain their source labels. A classification provider, taxonomy version and assignment date are not established unless the cited record states them.

Stable business record

Identity and status

Ownership and listing state

Public listing published

Ownership not asserted

The canonical public record includes at least one active security listing.

Inspect status source
Legal name
Amphastar Pharmaceuticals, Inc.
Inspect source
Country
US
Inspect source

Source-backed public-market identity

Index memberships

Current memberships are attached to a specific security and listing. Announcements, effective dates, and removals remain distinct states; Alpha does not infer membership from company size, exchange, or reputation.

No current membership is published in Alpha's tracked index universe.

This is not evidence that the company is absent from every market index.

As of Sep 15, 2026. Rights-filtered public evidence only; no redistribution or model training is granted.

Only source-backed memberships with an explicit public redistribution basis are returned.

Governance

Board leadership, management, committees and their disclosed responsibilities.

Canonical AEGIS identity graph

Executive leadership

Current, confirmed roles are shown only when both the person Profile and supporting source record satisfy the public projection boundary. A missing role is not evidence that it does not exist.

Executive team

7 public records
JY
Jack Yongfeng Zhang, Ph.D

Chief Executive Officer, President, Chief Scientific Officer and Director

State
confirmed
Effective
Date not stated
Confidence
94%
Evidence
AMPH executive roster sourceMay 3, 2026
JL
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

State
confirmed
Effective
From Apr 13, 2026
Confidence
94%
Evidence
AMPH DEF 14A executive officersApr 13, 2026
MZ
Mary Ziping Luo, Ph.D

Chief Operating Officer, Chief Scientist and Chairman of the Board of Directors

State
confirmed
Effective
Date not stated
Confidence
94%
Evidence
AMPH executive roster sourceMay 3, 2026
RZ
Rong Zhou

Senior Executive Vice President of Production Center; Executive Vice President of Scientific Affairs and President of Amphastar Nanjing Pharmaceuticals, Co., Ltd.

State
confirmed
Effective
From Apr 13, 2026
Confidence
94%
Evidence
AMPH DEF 14A executive officersApr 13, 2026
WJ
William J. Peters

Chief Financial Officer, Executive Vice President of Finance, and Treasurer; President of International Medication Systems, Limited and Director

State
confirmed
Effective
From Apr 13, 2026
Confidence
94%
Evidence
AMPH DEF 14A executive officersApr 13, 2026

Governance leadership

Boards & Committees

Board and committee assignments appear only when the canonical public projection retains a current role and supporting source. Unpublished records are not interpreted as absence.

Record as of Sep 14, 2026. Chair, executive office, Lead Independent Director and committee appointments retain their separate source roles. A complete board composition denominator and committee charters are not established by a partial roster.

Board roles

11 public records

Disclosure boundary

Governance and independence

Only current, confirmed leadership roles with public evidence are included in the canonical projection.

RecordStatusAuthorityEffective

Absence of a leadership role, committee, or disclosure is not evidence that it does not exist.

Investors & capital

Ownership, funding and dated financial information.

Ownership disclosures retain their reporting dates and source types. Economic ownership, investment discretion and voting authority are distinct. Activism and settlement-dated short interest are not established by holdings or short-sale volume.

Risk & assurance

Disclosed coverage, ratings and assurance scope.

Credit-rating evidence, where published, appears in the Governance and Basis sections with its source and reporting date. Insurance coverage, cyber ratings and assurance reports require their own issuer, scope, date and usage rights. Indemnification does not establish insurance coverage.

Ecosystem

Published relationships and related records.

Connections

Explore the roles, education and affiliations published in this record.

David Gaugh

Open David Gaugh profile →
David GaughDavid GaughDiane G. GerstDiane G. GerstFloyd F. PetersenFloyd F. PetersenGayle DeflinGayle DeflinHsin-Liang LeeHsin-Liang LeeJack Yongfeng ZhangJack Yongfeng ZhangJack Yongfeng Zhan…Jack Yongfeng Zhang, Ph.DJacob LiawatidewiJacob LiawatidewiJacob LiawatidewiJacob LiawatidewiJun ZhangJun ZhangMary Ziping LuoMary Ziping LuoMary Ziping LuoMary Ziping LuoAmphastar Pharmace…

Dashed lines mark past roles. Select a connection to see its dates and sources.

Published record

Featured coverage

Selected publications and public sources used to establish this profile. Inclusion records provenance; it is not an endorsement.

Source 1 · canonical_identityAlpha canonical company public projectionSupports Company identity, Published leadership, Entity status boundary. Reviewed Sep 14, 2026.Open source

Basis

Identifiers, sources and record limitations.

Identifiers

Alpha ID
alpha:company:380224c7-eafa-4d64-9d0c-7f061a379958
Record version
public-1

Sources

Sources and published information

Alpha canonical company public projection

Supports Company identity, Published leadership, Entity status boundary.

Open source
State
Published
Source type
canonical_identity
Last reviewed
Sep 14, 2026