Atossa Therapeutics, Inc. (ATOS) NASDAQ

Currency In USD

ATOS Historical Return

If you invested $1000 in Atossa Therapeutics, Inc. (ATOS) 10 years ago, it would be worth $2.84 as of August 01, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $47.42, while $1000 invested 1 year ago would be worth $167.61. This corresponds to total returns of -99.72%, -95.26%, -83.24%, respectively, with annualized returns of -44.35%, -45.65%, -83.24%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

ATOS Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
July 31, 2026	2.19	2.07	2.07	2.19	2.05	79,039
July 30, 2026	2.29	2.19	2.19	2.3	2.18	32,032
July 29, 2026	2.37	2.31	2.31	2.39	2.28	40,548
July 28, 2026	2.36	2.42	2.42	2.49	2.33	45,902
July 27, 2026	2.3	2.36	2.36	2.45	2.3	36,740
July 24, 2026	2.41	2.3	2.3	2.46	2.25	40,640
July 23, 2026	2.44	2.41	2.41	2.55	2.41	37,170
July 22, 2026	2.43	2.43	2.43	2.49	2.37	26,253
July 21, 2026	2.46	2.4	2.4	2.56	2.4	104,944
July 20, 2026	2.48	2.49	2.49	2.58	2.4	115,839
July 17, 2026	2.39	2.49	2.49	2.5	2.27	47,724
July 16, 2026	2.42	2.39	2.39	2.46	2.34	68,859
July 15, 2026	2.32	2.44	2.44	2.44	2.23	95,129
July 14, 2026	2.35	2.26	2.26	2.36	2.23	157,687
July 13, 2026	2.37	2.4	2.4	2.42	2.21	177,603
July 10, 2026	2.37	2.37	2.37	2.39	2.22	65,740
July 09, 2026	2.4	2.36	2.36	2.4	2.29	143,899
July 08, 2026	2.45	2.45	2.45	2.52	2.38	125,605
July 07, 2026	2.37	2.49	2.49	2.6	2.19	424,125
July 06, 2026	2.16	2.28	2.28	2.38	2.16	227,986
July 02, 2026	2.02	2.12	2.12	2.19	2.02	116,329
July 01, 2026	1.95	2.04	2.04	2.06	1.92	143,062
June 30, 2026	1.99	1.93	1.93	1.99	1.93	73,461
June 29, 2026	1.89	1.98	1.98	2.01	1.89	180,571
June 26, 2026	1.76	1.88	1.88	1.91	1.73	377,706
June 25, 2026	1.77	1.77	1.77	1.78	1.7	143,421
June 24, 2026	1.89	1.75	1.75	1.89	1.75	302,290
June 23, 2026	1.82	1.9	1.9	1.96	1.78	534,803
June 22, 2026	2.03	1.83	1.83	2.03	1.81	466,783
June 18, 2026	2.01	2.01	2.01	2.03	1.95	191,887
June 17, 2026	2.21	1.99	1.99	2.21	1.95	684,366
June 16, 2026	2.36	2.22	2.22	2.38	2.16	310,081
June 15, 2026	2.51	2.35	2.35	2.51	2.31	484,693
June 12, 2026	2.57	2.46	2.46	2.7	2.45	634,306
June 11, 2026	2.81	2.59	2.59	2.81	2.52	1.4M
June 10, 2026	4.39	4.4	4.4	4.59	4.36	29,880
June 09, 2026	4.55	4.41	4.41	4.59	4.36	53,866
June 08, 2026	4.56	4.55	4.55	4.56	4.35	36,026
June 05, 2026	4.78	4.47	4.47	4.8	4.4	0
June 04, 2026	4.67	4.85	4.85	4.87	4.65	46,767
June 03, 2026	4.8	4.7	4.7	4.8	4.68	45,056
June 02, 2026	5.06	4.85	4.85	5.15	4.8	77,570
June 01, 2026	5.14	5.11	5.11	5.2	4.93	58,515
May 29, 2026	5.21	5.23	5.23	5.3	5	42,885
May 28, 2026	5.19	5.19	5.19	5.25	4.98	51,680
May 27, 2026	4.91	5.12	5.12	5.18	4.86	39,639
May 26, 2026	4.95	4.95	4.95	5.06	4.86	30,277
May 22, 2026	4.93	4.96	4.96	5.1	4.84	26,903
May 21, 2026	4.79	4.97	4.97	5.06	4.66	55,013
May 20, 2026	4.71	4.84	4.84	4.96	4.66	38,725
May 19, 2026	4.8	4.75	4.75	4.92	4.66	50,564
May 18, 2026	4.85	4.78	4.78	4.95	4.7	42,513
May 15, 2026	5.11	4.85	4.85	5.11	4.85	46,072
May 14, 2026	4.99	5.15	5.15	5.16	4.95	29,419
May 13, 2026	5.23	5.16	5.16	5.31	5.15	30,744
May 12, 2026	5.12	5.16	5.16	5.21	5.08	59,631
May 11, 2026	5.58	5.5	5.5	5.71	5.45	37,598
May 08, 2026	5.42	5.6	5.6	5.65	5.42	31,375
May 07, 2026	5.81	5.67	5.67	5.83	5.61	47,417
May 06, 2026	5.53	5.8	5.8	5.89	5.49	55,941