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 $2.33 as of June 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $19.09, while $1000 invested 1 year ago would be worth $167.5. This corresponds to total returns of -99.77%, -98.09%, -83.25%, respectively, with annualized returns of -45.45%, -54.67%, -83.25%.

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
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
May 05, 2026	5.86	5.58	5.58	6.18	5.24	199,040
May 04, 2026	5.33	5.86	5.86	5.97	5.33	95,223
May 01, 2026	5.43	5.33	5.33	5.43	5.16	34,688
April 30, 2026	5.28	5.37	5.37	5.46	5.19	24,697
April 29, 2026	5.47	5.28	5.28	5.51	5.21	29,027
April 28, 2026	5.49	5.49	5.49	5.74	5.32	29,601
April 27, 2026	5.68	5.45	5.45	5.78	5.32	36,629
April 24, 2026	5.73	5.7	5.7	5.8	5.54	42,673
April 23, 2026	5.93	5.73	5.73	5.93	5.61	36,371
April 22, 2026	5.87	5.95	5.95	6.02	5.75	40,176
April 21, 2026	6.2	5.77	5.77	6.2	5.76	90,416
April 20, 2026	5.83	6.17	6.17	6.28	5.8	127,690
April 17, 2026	5.81	5.83	5.83	5.94	5.67	54,649
April 16, 2026	5.64	5.77	5.77	5.78	5.52	33,856
April 15, 2026	5.37	5.74	5.74	5.76	5.35	100,047
April 14, 2026	5.3	5.35	5.35	5.44	5.23	34,511
April 13, 2026	4.92	5.31	5.31	5.36	4.92	71,277
April 10, 2026	4.99	4.94	4.94	4.99	4.81	30,144
April 09, 2026	4.84	4.98	4.98	5.05	4.73	42,837
April 08, 2026	5.08	4.82	4.82	5.14	4.73	76,973
April 07, 2026	5.15	4.88	4.88	5.15	4.7	81,510
April 06, 2026	5.41	5.15	5.15	5.41	5.1	54,706
April 02, 2026	5.01	5.37	5.37	5.56	5	70,875
April 01, 2026	5.27	5.11	5.11	5.36	5.03	63,322
March 31, 2026	4.77	5.26	5.26	5.26	4.77	42,710
March 30, 2026	4.79	4.71	4.71	4.87	4.59	28,594
March 27, 2026	4.6	4.72	4.72	4.93	4.6	64,079
March 26, 2026	5.19	4.71	4.71	5.47	4.64	123,310
March 25, 2026	5.57	5.42	5.42	6.09	5.4	129,236