Atara Biotherapeutics, Inc. (ATRA)
NASDAQ: ATRA · Real-Time Price · USD
4.760
-0.230 (-4.61%)
At close: Apr 28, 2026, 4:00 PM EDT
4.730
-0.030 (-0.63%)
After-hours: Apr 28, 2026, 4:10 PM EDT

Company Description

Atara Biotherapeutics, Inc. engages in the development of transformative therapies for patients with cancer and autoimmune disease in the United States and internationally.

Its lead product includes Tab-cel (tabelecleucel), a T-cell immunotherapy program that is in Phase 3 clinical trials for the treatment of epstein-barr virus (EBV) with post-transplant lymphoproliferative disease, as well as other EBV-driven diseases.

It also develops ATA3219, an allogeneic CAR T targeting CD19 intended to target B-cell malignancies and autoimmune diseases.

The company has research collaboration agreements with Memorial Sloan Kettering Cancer Center, and Council of the Queensland Institute of Medical Research.

Atara Biotherapeutics, Inc. was incorporated in 2012 and is headquartered in Thousand Oaks, California.

Atara Biotherapeutics, Inc.
Atara Biotherapeutics logo
Country United States
Founded 2012
IPO Date Oct 16, 2014
Industry Biotechnology
Sector Healthcare
Employees 14
CEO Anhco Nguyen

Contact Details

Address:
1280 Rancho Conejo Blvd
Thousand Oaks, California 91320
United States
Phone 805 623 4211
Website atarabio.com

Stock Details

Ticker Symbol ATRA
Exchange NASDAQ
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
CIK Code 0001604464
CUSIP Number 046513107
ISIN Number US0465132068
Employer ID 46-0920988
SIC Code 2836

Key Executives

Name Position
Dr. Anhco Nguyen Ph.D. President, Chief Executive Officer and Director
Yanina Grant-Huerta Chief Accounting Officer and Principal Accounting Officer
Alex Chapman Vice President of Corporate Communications and Investor Relations
John Chao Head of Legal
Jim Sesic Senior Vice President of Regulatory Affairs

Latest SEC Filings

Date Type Title
Apr 24, 2026 DEF 14A Other definitive proxy statements
Apr 24, 2026 DEFA14A Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Mar 25, 2026 EFFECT Notice of Effectiveness
Mar 25, 2026 424B3 Prospectus
Mar 17, 2026 S-3 Registration statement under Securities Act of 1933
Mar 16, 2026 424B5 Filing
Mar 16, 2026 10-K Annual Report
Mar 16, 2026 8-K Current Report
Mar 12, 2026 8-K Current Report
Mar 3, 2026 8-K Current Report