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Atara Biotherapeutics
ATRAHealth Care· South San Francisco, California, United States
LAYOFFS TRACKED
4
LAST EVENT
May 2, 2025
MARKET CAP
$94.15M
as of Aug 26, 2026
EMPLOYEES
250
Atara Biotherapeutics is a clinical-stage biopharmaceutical company focused on developing off-the-shelf, allogeneic T-cell immunotherapies for cancer and autoimmune diseases. The company leverages its T-cell receptor and EBV-targeted platforms to create engineered T-cell products aimed at treating hematologic malignancies, solid tumors and immune-mediated diseases.
Layoff history
EMPLOYEES AFFECTED PER QUARTER · HOVER FOR DETAILS
22
1
44
31
Q4 '22Q1 '24Q1 '25Q1 '26Q3 '26
Layoff timeline
4 EVENTSMar 8, 2024WARN notice
Layoff at Atara Biotherapeutics · ~44 roles
Rancho Conejo Blvd Thousand Oaks, CA · 2 locations
Oct 7, 2022WARN notice
Layoff at Atara Biotherapeutics · ~22 roles
South San Francisco, CA · 2 locations
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