Atara Biotherapeutics, Inc. (ATRA)

Atara Biotherapeutics Employees

Atara Biotherapeutics had 14 employees as of December 31, 2025. The number of employees decreased by 139 or -90.85% compared to the previous year.

• Employees: 14
• Change: -139
• Growth: -90.85%
• Revenue / Employee: $1,652,786
• Profits / Employee: -$676,214
• Market Cap: 84.61M

Employees History

Date	Employees	Change (1Y)	Growth (1Y)
Dec 31, 2025	14	-139	-90.85%
Sep 30, 2025	38	-121	-76.10%
Jun 30, 2025	38	-127	-76.97%
Mar 31, 2025	89	-84	-48.55%
Dec 31, 2024	153	-72	-32.00%
Sep 30, 2024	159	-149	-48.38%
Jun 30, 2024	165	-152	-47.95%
Mar 31, 2024	173	-157	-47.58%
Dec 31, 2023	225	-109	-32.63%
Sep 30, 2023	308	-32	-9.41%
Jun 30, 2023	317	-117	-26.96%
Mar 31, 2023	330	-240	-42.11%
Dec 31, 2022	334	-244	-42.21%
Sep 30, 2022	340	-238	-41.18%
Jun 30, 2022	434	-124	-22.22%
Mar 31, 2022	570	90	18.75%
Dec 31, 2021	578	141	32.27%
Sep 30, 2021	578	149	34.73%
Jun 30, 2021	558	133	31.29%
Mar 31, 2021	480	71	17.36%

Data Source: S&P Global Market Intelligence Last updated: Dec 31, 2025

Employee data is provided by S&P Global Market Intelligence and updates every three months after the filing of each quarterly report.

Update frequency:

Quarterly

Last checked:

Jun 1, 2026

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