Atossa Therapeutics, Inc. (ATOS)
NASDAQ: ATOS · Real-Time Price · USD
1.110
+0.100 (9.90%)
At close: Oct 8, 2025, 4:00 PM EDT
1.120
+0.010 (0.90%)
After-hours: Oct 8, 2025, 7:04 PM EDT
Atossa Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 8, 2025 | 1.01 | 1.16 | 1.01 | 1.11 | - | 9.90% | 4,111,630 |
| Oct 7, 2025 | 1.00 | 1.02 | 0.98 | 1.01 | 1.01 | 1.00% | 1,082,356 |
| Oct 6, 2025 | 1.01 | 1.02 | 0.97 | 1.00 | 1.00 | -0.99% | 1,296,501 |
| Oct 3, 2025 | 0.93 | 1.05 | 0.92 | 1.01 | 1.01 | 9.78% | 3,027,753 |
| Oct 2, 2025 | 0.92 | 0.93 | 0.89 | 0.92 | 0.92 | 0.41% | 816,528 |
| Oct 1, 2025 | 0.86 | 0.93 | 0.86 | 0.92 | 0.92 | 5.67% | 1,167,728 |
| Sep 30, 2025 | 0.88 | 0.89 | 0.86 | 0.87 | 0.87 | -0.65% | 373,571 |
| Sep 29, 2025 | 0.87 | 0.90 | 0.86 | 0.87 | 0.87 | 1.65% | 918,905 |
| Sep 26, 2025 | 0.82 | 0.86 | 0.82 | 0.86 | 0.86 | 5.12% | 465,210 |
| Sep 25, 2025 | 0.83 | 0.84 | 0.82 | 0.82 | 0.82 | -1.07% | 331,442 |
| Sep 24, 2025 | 0.83 | 0.85 | 0.82 | 0.83 | 0.83 | 0.32% | 400,817 |
| Sep 23, 2025 | 0.85 | 0.87 | 0.82 | 0.82 | 0.82 | -0.96% | 957,652 |
| Sep 22, 2025 | 0.84 | 0.85 | 0.82 | 0.83 | 0.83 | -2.10% | 468,613 |
| Sep 19, 2025 | 0.88 | 0.88 | 0.83 | 0.85 | 0.85 | -3.55% | 750,547 |
| Sep 18, 2025 | 0.84 | 0.88 | 0.83 | 0.88 | 0.88 | 6.00% | 1,043,003 |
| Sep 17, 2025 | 0.81 | 0.84 | 0.81 | 0.83 | 0.83 | 0.99% | 495,139 |
| Sep 16, 2025 | 0.81 | 0.83 | 0.81 | 0.82 | 0.82 | 0.46% | 556,836 |
| Sep 15, 2025 | 0.83 | 0.84 | 0.81 | 0.82 | 0.82 | -2.57% | 592,668 |
| Sep 12, 2025 | 0.83 | 0.85 | 0.83 | 0.84 | 0.84 | 2.02% | 494,078 |
| Sep 11, 2025 | 0.80 | 0.83 | 0.80 | 0.82 | 0.82 | 3.11% | 666,085 |
| Sep 10, 2025 | 0.81 | 0.82 | 0.79 | 0.80 | 0.80 | -1.07% | 421,645 |
| Sep 9, 2025 | 0.78 | 0.82 | 0.78 | 0.81 | 0.81 | -0.01% | 537,680 |
| Sep 8, 2025 | 0.80 | 0.81 | 0.78 | 0.81 | 0.81 | 2.42% | 758,247 |
| Sep 5, 2025 | 0.78 | 0.80 | 0.77 | 0.79 | 0.79 | 2.18% | 558,866 |
| Sep 4, 2025 | 0.78 | 0.78 | 0.76 | 0.77 | 0.77 | 0.17% | 228,649 |
| Sep 3, 2025 | 0.76 | 0.78 | 0.76 | 0.77 | 0.77 | 0.56% | 546,210 |
| Sep 2, 2025 | 0.75 | 0.78 | 0.75 | 0.77 | 0.77 | 0.35% | 377,737 |
| Aug 29, 2025 | 0.77 | 0.77 | 0.75 | 0.76 | 0.76 | 1.17% | 300,575 |
| Aug 28, 2025 | 0.76 | 0.77 | 0.75 | 0.75 | 0.75 | -0.97% | 357,135 |
| Aug 27, 2025 | 0.77 | 0.79 | 0.76 | 0.76 | 0.76 | -1.78% | 457,326 |
| Aug 26, 2025 | 0.77 | 0.79 | 0.77 | 0.78 | 0.78 | 2.04% | 330,488 |
| Aug 25, 2025 | 0.79 | 0.79 | 0.76 | 0.76 | 0.76 | -2.28% | 447,246 |
| Aug 22, 2025 | 0.76 | 0.79 | 0.74 | 0.78 | 0.78 | 4.50% | 472,017 |
| Aug 21, 2025 | 0.74 | 0.75 | 0.73 | 0.74 | 0.74 | 0.74% | 361,022 |
| Aug 20, 2025 | 0.75 | 0.76 | 0.73 | 0.74 | 0.74 | -1.53% | 481,135 |
| Aug 19, 2025 | 0.78 | 0.79 | 0.75 | 0.75 | 0.75 | -5.06% | 749,541 |
| Aug 18, 2025 | 0.77 | 0.80 | 0.77 | 0.79 | 0.79 | 1.74% | 526,623 |
| Aug 15, 2025 | 0.78 | 0.80 | 0.78 | 0.78 | 0.78 | -0.46% | 589,447 |
| Aug 14, 2025 | 0.79 | 0.79 | 0.77 | 0.78 | 0.78 | -0.74% | 452,924 |
| Aug 13, 2025 | 0.77 | 0.80 | 0.76 | 0.79 | 0.79 | 1.70% | 689,914 |
| Aug 12, 2025 | 0.76 | 0.78 | 0.76 | 0.77 | 0.77 | 1.24% | 721,169 |
| Aug 11, 2025 | 0.79 | 0.80 | 0.76 | 0.76 | 0.76 | -3.01% | 862,027 |
| Aug 8, 2025 | 0.78 | 0.80 | 0.77 | 0.79 | 0.79 | 1.90% | 538,720 |
| Aug 7, 2025 | 0.79 | 0.81 | 0.77 | 0.77 | 0.77 | -1.97% | 708,303 |
| Aug 6, 2025 | 0.80 | 0.82 | 0.78 | 0.79 | 0.79 | -2.14% | 901,940 |
| Aug 5, 2025 | 0.83 | 0.85 | 0.80 | 0.81 | 0.81 | -3.44% | 885,558 |
| Aug 4, 2025 | 0.84 | 0.84 | 0.82 | 0.83 | 0.83 | 1.30% | 404,368 |
| Aug 1, 2025 | 0.83 | 0.85 | 0.81 | 0.82 | 0.82 | -1.32% | 685,487 |
| Jul 31, 2025 | 0.87 | 0.87 | 0.82 | 0.83 | 0.83 | -4.36% | 846,427 |
| Jul 30, 2025 | 0.91 | 0.94 | 0.87 | 0.87 | 0.87 | -5.68% | 1,458,854 |