ATRA Atara Biotherapeutics, Inc.
NASDAQActiveCommon stock
ATRA is the ticker symbol of Atara Biotherapeutics, Inc., which is listed on NASDAQ.
ATRA at a glance
- Symbol
- ATRA
- Company / issuer
- Atara Biotherapeutics, Inc.
- Security type
- Common stock
- Exchange
- NASDAQ
- Status
- Actively traded
- Seen in listing files
- Jan 2015 – present
- Sector
- Health Care
- Industry
- Biotechnology: Biological Products (No Diagnostic Substances)
- Country
- United States
- IPO year
- 2014
- Market cap
- $85.7 million (Sep 2026)
Atara Biotherapeutics, Inc. company profile
- Industry (SIC)
- Biological Products, (No Diagnostic Substances)
- Headquarters
- Thousand Oaks, CA
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC filer category
- Non-accelerated filer<br>Smaller reporting company
- Latest annual report
- 10-K filed 2026-03-16
- Latest interim report
- 10-Q filed 2026-08-12
- SEC CIK
- 1604464
Source: SEC EDGAR filer data.
ATRA price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol ATRA?
ATRA is the ticker symbol of Atara Biotherapeutics, Inc on NASDAQ.
Is ATRA still trading?
Yes. ATRA appears in the current NASDAQ listings as of Sep 2026.
Which exchange is ATRA listed on?
ATRA is listed on NASDAQ.