Atara Biotherapeutics, Inc. - ATRA - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 29, 2025	15.43	14.06	14.06	15.43	13.87	36,384
October 28, 2025	15.58	15.21	15.21	15.74	15.05	21,800
October 27, 2025	14.75	15.59	15.59	15.59	14.63	51,200
October 24, 2025	14.38	14.49	14.49	14.7	14.04	39,400
October 23, 2025	14.66	14.12	14.12	15.39	14.05	44,151
October 22, 2025	15.71	14.63	14.63	15.84	14.61	45,100
October 21, 2025	16.04	15.79	15.79	16.15	15.02	55,600
October 20, 2025	15.08	16.04	16.04	16.09	14.95	76,768
October 17, 2025	15.09	14.81	14.81	15.42	14.58	33,574
October 16, 2025	15.42	15.25	15.25	16.28	14.92	47,104
October 15, 2025	15.09	15.28	15.28	15.45	14.61	34,238
October 14, 2025	14.85	14.61	14.61	14.85	14	51,015
October 13, 2025	14.62	15.04	15.04	15.35	14.3	66,435
October 10, 2025	16.28	14.33	14.33	16.28	14.03	91,565
October 09, 2025	16	16.08	16.08	16.72	15.85	80,328
October 08, 2025	15.76	15.85	15.85	15.97	14.85	69,700
October 07, 2025	14	15.63	15.63	15.9	13.89	115,552
October 06, 2025	14.41	13.98	13.98	14.41	13.92	44,198
October 03, 2025	14.58	14.41	14.41	14.85	14.09	34,906
October 02, 2025	14.59	14.48	14.48	14.64	14.02	34,728
October 01, 2025	14.29	14.45	14.45	14.78	14	54,000
September 30, 2025	13.81	14.33	14.33	14.57	13.12	89,441
September 29, 2025	13.55	13.81	13.81	13.95	13.5	44,941
September 26, 2025	13.85	13.74	13.74	14.02	12.95	36,834
September 25, 2025	14.11	13.83	13.83	14.24	13.48	34,695
September 24, 2025	13	14.26	14.26	14.86	12.82	196,693
September 23, 2025	12.31	12.97	12.97	13	12	57,900
September 22, 2025	12	12.3	12.3	12.3	11.67	54,100
September 19, 2025	12	12.05	12.05	12.27	11.66	77,500
September 18, 2025	11.82	12.07	12.07	12.07	11.33	35,300
September 17, 2025	11.56	11.59	11.59	11.83	11.51	13,900
September 16, 2025	11.95	11.51	11.51	12	11.51	19,562
September 15, 2025	12.39	11.94	11.94	12.5	11.77	31,500
September 12, 2025	12.13	12.12	12.12	12.25	11.8	37,500
September 11, 2025	11.8	12.16	12.16	12.22	11.75	29,000
September 10, 2025	11.94	11.78	11.78	12.09	11.7	12,000
September 09, 2025	12	11.95	11.95	12.18	11.8	40,700
September 08, 2025	12.75	12.18	12.18	12.75	11.8	103,934
September 05, 2025	12.78	12.91	12.91	13.2	12.41	65,700
September 04, 2025	12.64	12.8	12.8	12.8	12.38	21,635
September 03, 2025	12.42	12.63	12.63	12.75	12.23	53,900
September 02, 2025	11.97	12.34	12.34	12.6	11.81	68,506
August 29, 2025	12.44	12.05	12.05	12.44	11.7	36,668
August 28, 2025	12.4	12.36	12.36	12.76	12.16	50,900
August 27, 2025	12.59	12.35	12.35	12.75	11.86	34,139
August 26, 2025	12.5	12.64	12.64	13.08	12.19	80,305
August 25, 2025	12.37	12.24	12.24	12.56	12.02	57,564
August 22, 2025	11.72	12.34	12.34	12.4	11.62	90,727
August 21, 2025	11.63	11.49	11.49	11.92	11.28	31,143
August 20, 2025	11.87	11.76	11.76	12.09	11.27	64,570
August 19, 2025	11.53	11.48	11.48	12.06	11.24	35,240
August 18, 2025	12.21	11.48	11.48	12.5	11.2	78,100
August 15, 2025	11.72	12.29	12.29	12.49	11.52	149,600
August 14, 2025	12	11.72	11.72	12.11	11.54	41,400
August 13, 2025	11.67	12.13	12.13	12.25	11.62	58,084
August 12, 2025	11.01	11.54	11.54	12.31	10.87	57,549
August 11, 2025	10.86	10.32	10.32	11.45	10.32	41,861
August 08, 2025	11.03	10.96	10.96	11.66	10.39	25,046
August 07, 2025	11.39	10.96	10.96	11.79	10.53	23,422
August 06, 2025	11.31	11.39	11.39	11.75	10.86	24,655

Atara Biotherapeutics, Inc. (ATRA) NASDAQ