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Atara Biotherapeutics (ATRA) Stock Chart & Stock Price History

Atara Biotherapeutics logo
$8.56 -0.37 (-4.14%)
As of 09/23/2026 04:00 PM Eastern

Atara Biotherapeutics Stock Price Performance

The Atara Biotherapeutics (ATRA) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 39.97%, with a year-to-date return of -52.68%. In the past month, the stock has decreased 9.51%, reflecting recent market activity.

As of the latest close, Atara Biotherapeutics traded at $8.56 with a market cap of $85.94 million and volume of 40,473 shares. Five years ago, the stock traded at a split-adjusted price of $425.00, representing a 97.99% decrease over that period. At the time, it had a market cap of $1.44 billion and a volume of 15,634 shares.

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5 Day
Performance
-11.66%
1 Month
Performance
-9.51%
3 Month
Performance
-18.86%
Year-To-Date
Performance
-52.68%
1 Year
Performance
-39.97%
5 Year
Performance
-97.99%

ATRA Stock Chart for Thursday, September, 24, 2026

Atara Biotherapeutics Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/23/2026$8.93$8.56
-4.14%
$8.95$8.4040,473 shs$85.94 million
09/22/2026$9.38$8.93
-4.80%
$9.60$8.9327,264 shs$89.64 million
09/21/2026$9.69$9.38
-3.20%
$9.92$9.3029,653 shs$94.18 million
09/18/2026$9.71$9.69
-0.21%
$10.19$9.6037,766 shs$97.29 million
09/17/2026$10.11$9.71
-3.96%
$10.28$9.4126,420 shs$97.49 million
09/16/2026$9.44$10.11
+7.10%
$10.37$9.07116,744 shs$101.48 million
09/15/2026$9.25$9.44
+2.05%
$9.88$8.9256,061 shs$94.78 million
09/14/2026$9.38$9.25
-1.39%
$9.71$9.0750,848 shs$92.87 million
09/11/2026$9.89$9.38
-5.16%
$10.00$9.3816,024 shs$94.18 million
09/10/2026$9.91$9.89
-0.20%
$9.94$9.5223,205 shs$99.28 million
09/09/2026$10.23$9.91
-3.13%
$10.43$9.7668,507 shs$99.50 million
09/08/2026$9.76$10.23
+4.82%
$11.33$10.23106,737 shs$102.71 million
09/07/2026$9.76$9.76$9.95$9.25132,728 shs$97.99 million
09/04/2026$9.53$9.76
+2.41%
$9.95$9.25132,728 shs$97.99 million
09/03/2026$9.44$9.53
+0.95%
$9.53$9.0025,276 shs$95.66 million
09/02/2026$9.02$9.44
+4.66%
$9.48$9.0820,898 shs$94.78 million
09/01/2026$8.90$9.02
+1.35%
$9.18$8.8051,944 shs$90.56 million
08/31/2026$9.20$8.90
-3.26%
$9.29$8.8330,241 shs$89.34 million
08/28/2026$9.25$9.20
-0.54%
$9.21$8.9015,345 shs$92.35 million
08/27/2026$9.38$9.25
-1.39%
$9.60$9.1726,949 shs$92.87 million
08/26/2026$9.84$9.38
-4.67%
$9.84$9.3863,701 shs$94.18 million
08/25/2026$9.46$9.84
+4.02%
$10.02$9.5448,513 shs$98.77 million
08/24/2026$9.70$9.46
-2.47%
$9.66$9.3123,966 shs$94.98 million

This page (NASDAQ:ATRA) was last updated on 9/23/2026 by MarketBeat.com Staff.
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