NASDAQ · ATRA

Atara Biotherapeutics, Inc.

Healthcare · Biotechnology

$10.11

Down-$0.40 (-3.96%)

Updated Sep 17, 2026, 9:34 PM

SID Score

5.2/10

Composite research score

Smart Money

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Institutional and insider signal

Price performance

ATRA price history

1M range · 20 trading sessions · Daily adjusted prices

Daily close

View OHLC price history

ATRA OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Sep 16, 2026	$9.50	$10.37	$9.07	$10.11	116.75K
Sep 15, 2026	$9.21	$9.88	$8.92	$9.44	56.06K
Sep 14, 2026	$9.09	$9.71	$9.07	$9.25	50.85K
Sep 11, 2026	$10.00	$10.00	$9.38	$9.38	16.03K
Sep 10, 2026	$9.94	$9.94	$9.52	$9.89	23.21K
Sep 9, 2026	$10.27	$10.43	$9.76	$9.91	68.51K
Sep 8, 2026	$10.60	$11.33	$10.23	$10.23	106.94K
Sep 4, 2026	$9.45	$9.95	$9.25	$9.76	135.66K
Sep 3, 2026	$9.49	$9.53	$9.00	$9.53	25.28K
Sep 2, 2026	$9.08	$9.48	$9.08	$9.44	20.9K
Sep 1, 2026	$8.96	$9.18	$8.80	$9.02	51.95K
Aug 31, 2026	$9.09	$9.29	$8.83	$8.90	30.24K
Aug 28, 2026	$9.18	$9.21	$8.90	$9.20	15.35K
Aug 27, 2026	$9.38	$9.60	$9.165	$9.25	26.95K
Aug 26, 2026	$9.65	$9.84	$9.38	$9.38	63.75K
Aug 25, 2026	$9.57	$10.02	$9.5379	$9.84	48.51K
Aug 24, 2026	$9.57	$9.66	$9.31	$9.46	23.97K
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