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Arsenal Biosciences

Private

Clinical-stage cell therapy company developing next-generation CAR-T cell therapies for solid tumors.

Company Info

Sector:Cell Therapy
Headquarters:South San Francisco, CA, USA
Founded:2019

Workforce & Restructuring Tracker

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2026-09-01•Pipeline Pivot & Reprioritization•South San Francisco, CA, USA
99 roles (Majority of staff)WARN Notice

Programmable cell therapy developer ArsenalBio cut 99 employees (the majority of its workforce, including 58 South San Francisco HQ roles per CA WARN filings) as it discontinued its ex vivo clinical CAR-T programs to pivot to in vivo CAR-T delivery.

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