Arena Pharmaceuticals, Inc.

Arena Pharmaceuticals, Inc. company information, Employees & Contact Information

Updated June 2026

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Arena Pharmaceuticals, Inc. is a Pharmaceutical Manufacturing company and founded in 1997. It has approximately 115 employees on record. Contact data was last refreshed in June 2026. Find Arena Pharmaceuticals, Inc.'s verified employee emails, phone numbers, headquarters address, and key decision makers below.

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Arena is now part of Pfizer.

Company Details

Employees
115
Founded
1997
Address
6154 Nancy Ridge Drive, San Diego,ca 92121,united States
Phone
858-453-7200
Email
in****@****arm.com
Industry
Pharmaceutical Manufacturing
NAICS
Pharmaceutical and Medicine Manufacturing
Medicinal and Botanical Manufacturing
Pharmaceutical Preparation Manufacturing
In-Vitro Diagnostic Substance Manufacturing
Biological Product (except Diagnostic) Manufacturing
Website
arenapharm.com
HQ
San Diego, CA
Competitors
Mirati Therapeutics, Crinetics Pharmaceuticals, Acadia Pharmaceuticals Inc., Ionis Pharmaceuticals, Inc., Pfizer, Global Blood Therapeutics, Seagen, Neurocrine Biosciences, Longboard Pharmaceuticals, Anacor Pharmaceuticals.
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Arena Pharmaceuticals, Inc. Questions

News

Arena Pharmaceuticals and Beacon Discovery Expand Strategic Relationship Focusing on Multiple Immune and Inflammatory Targets - PR Newswire

Arena Pharmaceuticals and Beacon Discovery Expand Strategic Relationship Focusing on Multiple Immune and Inflammatory Targets PR Newswire

Arena Pharmaceuticals and Aristea Therapeutics Establish Collaboration for Development of RIST4721 for Treatment of Serious Immune-Mediated Inflammatory Diseases - Business Wire

Arena Pharmaceuticals and Aristea Therapeutics Establish Collaboration for Development of RIST4721 for Treatment of Serious Immune-Mediated Inflammatory Diseases Business Wire

Arena Pharmaceuticals Announces Launch of Longboard Pharmaceuticals With $56M Financing, Building a Novel Neuroscience Drug Development Company - PR Newswire

Arena Pharmaceuticals Announces Launch of Longboard Pharmaceuticals With $56M Financing, Building a Novel Neuroscience Drug Development Company PR Newswire

Arena Pharmaceuticals Announces Full Exercise of Underwriters' Option to Purchase Additional Shares - PR Newswire

Arena Pharmaceuticals Announces Full Exercise of Underwriters' Option to Purchase Additional Shares PR Newswire

FDA Grants Fast Track Designation to Arena Pharmaceuticals' APD418 for Development in Decompensated Heart Failure Patients - PR Newswire

FDA Grants Fast Track Designation to Arena Pharmaceuticals' APD418 for Development in Decompensated Heart Failure Patients PR Newswire

Arena Pharmaceuticals Appoints Dr. Preston Klassen, M.D., M.H.S. as Executive Vice President, Research and Development and Chief Medical Officer - PR Newswire

Arena Pharmaceuticals Appoints Dr. Preston Klassen, M.D., M.H.S. as Executive Vice President, Research and Development and Chief Medical Officer PR Newswire

Arena Pharmaceuticals Announces Shareholders and Board of Directors Approve Reverse Stock Split - PR Newswire

Arena Pharmaceuticals Announces Shareholders and Board of Directors Approve Reverse Stock Split PR Newswire

Arena Pharmaceuticals Completes Enrollment in Ralinepag Phase 2 Clinical Trial for Pulmonary Arterial Hypertension (PAH) - PR Newswire

Arena Pharmaceuticals Completes Enrollment in Ralinepag Phase 2 Clinical Trial for Pulmonary Arterial Hypertension (PAH) PR Newswire

Arena Pharmaceuticals Announces Closing of Global License Agreement with United Therapeutics for Ralinepag - PR Newswire

Arena Pharmaceuticals Announces Closing of Global License Agreement with United Therapeutics for Ralinepag PR Newswire

Arena Pharmaceuticals and Everest Medicines Enter into Development and Commercialization Partnership for Ralinepag and Etrasimod in China - PR Newswire

Arena Pharmaceuticals and Everest Medicines Enter into Development and Commercialization Partnership for Ralinepag and Etrasimod in China PR Newswire

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