Atossa Therapeutics, Inc. (ATOS)

NASDAQ: ATOS · Real-Time Price · USD

2.220

-0.180 (-7.50%)

At close: Sep 18, 2026, 4:00 PM EDT

2.290

+0.070 (3.15%)

After-hours: Sep 18, 2026, 7:30 PM EDT

Atossa Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Sep 18, 2026	2.37	2.38	2.22	2.22	2.22	-7.50%	37,777
Sep 17, 2026	2.42	2.43	2.37	2.40	2.40	-0.83%	31,486
Sep 16, 2026	2.39	2.48	2.39	2.42	2.42	2.11%	45,767
Sep 15, 2026	2.48	2.49	2.37	2.37	2.37	-4.44%	43,777
Sep 14, 2026	2.53	2.56	2.45	2.48	2.48	-1.20%	35,036
Sep 11, 2026	2.36	2.54	2.36	2.51	2.51	7.26%	58,611
Sep 10, 2026	2.36	2.61	2.33	2.34	2.34	-2.50%	47,222
Sep 9, 2026	2.54	2.54	2.40	2.40	2.40	-4.57%	24,798
Sep 8, 2026	2.49	2.59	2.45	2.52	2.52	-0.20%	41,338
Sep 4, 2026	2.51	2.60	2.50	2.52	2.52	-0.40%	27,979
Sep 3, 2026	2.50	2.60	2.46	2.53	2.53	2.85%	56,679
Sep 2, 2026	2.40	2.51	2.39	2.46	2.46	1.65%	44,770
Sep 1, 2026	2.48	2.50	2.32	2.42	2.42	-3.20%	91,772
Aug 31, 2026	2.57	2.59	2.50	2.50	2.50	-3.10%	53,194
Aug 28, 2026	2.62	2.62	2.50	2.58	2.58	-2.27%	47,949
Aug 27, 2026	2.64	2.69	2.59	2.64	2.64	-0.38%	23,104
Aug 26, 2026	2.66	2.70	2.61	2.65	2.65	-1.12%	26,287
Aug 25, 2026	2.62	2.69	2.58	2.68	2.68	1.52%	49,680
Aug 24, 2026	2.56	2.65	2.45	2.64	2.64	3.94%	56,713
Aug 21, 2026	2.59	2.62	2.51	2.54	2.54	-1.93%	25,561
Aug 20, 2026	2.62	2.62	2.44	2.59	2.59	-1.89%	70,939
Aug 19, 2026	2.57	2.76	2.55	2.64	2.64	1.93%	62,166
Aug 18, 2026	2.77	2.78	2.57	2.59	2.59	-7.17%	58,271
Aug 17, 2026	2.62	2.97	2.55	2.79	2.79	7.31%	192,303
Aug 14, 2026	2.54	2.69	2.43	2.60	2.60	1.56%	95,870
Aug 13, 2026	2.36	2.56	2.36	2.56	2.56	8.94%	82,726
Aug 12, 2026	2.32	2.37	2.27	2.35	2.35	-0.42%	31,288
Aug 11, 2026	2.39	2.45	2.27	2.36	2.36	-0.42%	56,233
Aug 10, 2026	2.26	2.45	2.26	2.37	2.37	0.42%	68,447
Aug 7, 2026	2.37	2.45	2.24	2.36	2.36	-2.48%	77,212
Aug 6, 2026	2.39	2.44	2.26	2.42	2.42	1.26%	30,699
Aug 5, 2026	2.37	2.39	2.27	2.39	2.39	3.46%	35,264
Aug 4, 2026	2.18	2.34	2.18	2.31	2.31	6.45%	53,902
Aug 3, 2026	2.10	2.19	2.07	2.17	2.17	4.83%	24,066
Jul 31, 2026	2.19	2.19	2.05	2.07	2.07	-5.48%	78,964
Jul 30, 2026	2.29	2.30	2.18	2.19	2.19	-5.19%	31,898
Jul 29, 2026	2.37	2.39	2.28	2.31	2.31	-4.35%	40,537
Jul 28, 2026	2.36	2.49	2.33	2.42	2.42	2.33%	45,902
Jul 27, 2026	2.30	2.45	2.30	2.36	2.36	2.83%	34,657
Jul 24, 2026	2.41	2.46	2.25	2.30	2.30	-4.77%	40,640
Jul 23, 2026	2.44	2.55	2.41	2.41	2.41	-0.82%	37,165
Jul 22, 2026	2.43	2.49	2.37	2.43	2.43	1.25%	25,753
Jul 21, 2026	2.46	2.60	2.39	2.40	2.40	-3.61%	104,956
Jul 20, 2026	2.48	2.58	2.40	2.49	2.49	-	115,723
Jul 17, 2026	2.39	2.50	2.27	2.49	2.49	4.18%	47,724
Jul 16, 2026	2.42	2.46	2.34	2.39	2.39	-2.05%	68,851
Jul 15, 2026	2.29	2.44	2.23	2.44	2.44	7.96%	95,129
Jul 14, 2026	2.35	2.36	2.23	2.26	2.26	-5.83%	156,977
Jul 13, 2026	2.37	2.42	2.21	2.40	2.40	1.27%	177,554
Jul 10, 2026	2.37	2.39	2.22	2.37	2.37	0.42%	65,738