Mallinckrodt Pharmaceuticals plc

HQ
Hazelwood
Total Offices: 12
2,700 Total Employees
Year Founded: 1867
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Pharmaceutical
Manufacturing
Mallinckrodt Pharmaceuticals plc is a global specialty pharmaceutical company with over 150 years of experience. Historically a manufacturer of specialty pharmaceuticals, generic drugs, and imaging agents, the company transitioned in November 2025 to be known as Keenova Therapeutics. It now focuses on developing, manufacturing, and commercializing branded therapeutics designed to help patients with rare or unaddressed conditions live healthier and happier lives.

Mallinckrodt Pharmaceuticals plc Offices

OnSite Workspace

Employees work from physical offices.

Typical time on-site: None
HQHazelwood, Missouri, USA
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