NASDAQ · ATRA

Atara Biotherapeutics, Inc.

Healthcare · Biotechnology

$9.70

Up+$0.32 (+3.41%)

Updated Aug 22, 2026, 10:17 PM

SID Score

5.5/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance

ATRA price history

1M range · 21 trading sessions · Daily adjusted prices

Daily close

View OHLC price history

ATRA OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Aug 21, 2026	$9.46	$9.89	$9.15	$9.70	27.09K
Aug 20, 2026	$9.60	$9.74	$9.14	$9.38	28.02K
Aug 19, 2026	$8.85	$9.74	$8.2764	$9.60	79.15K
Aug 18, 2026	$8.34	$8.90	$8.34	$8.72	29.5K
Aug 17, 2026	$8.00	$8.48	$7.81	$8.36	66.1K
Aug 14, 2026	$8.51	$8.51	$7.99	$8.09	66.25K
Aug 13, 2026	$8.34	$9.24	$7.73	$8.51	126.52K
Aug 12, 2026	$8.88	$9.43	$8.70	$9.225	90K
Aug 11, 2026	$8.62	$9.04	$8.359	$8.94	29.25K
Aug 10, 2026	$8.42	$8.80	$8.09	$8.61	45.33K
Aug 7, 2026	$8.30	$8.485	$8.2015	$8.45	23.21K
Aug 6, 2026	$8.60	$8.645	$8.0901	$8.25	22.86K
Aug 5, 2026	$8.60	$8.98	$8.3801	$8.54	32.52K
Aug 4, 2026	$8.55	$9.11	$8.55	$8.77	42.28K
Aug 3, 2026	$8.42	$8.6599	$8.255	$8.55	53.24K
Jul 31, 2026	$8.17	$8.6699	$7.86	$8.38	34.5K
Jul 30, 2026	$8.18	$8.32	$7.86	$8.17	96.04K
Jul 29, 2026	$7.74	$8.25	$7.57	$8.06	39.85K
Jul 28, 2026	$7.76	$7.9099	$7.39	$7.81	85.37K
Jul 27, 2026	$8.06	$8.3305	$7.65	$7.71	62.72K
Jul 24, 2026	$8.19	$8.38	$7.84	$7.90	75.24K