Atossa Therapeutics, Inc. (ATOS)
NASDAQ: ATOS · Real-Time Price · USD
4.490
-0.040 (-0.88%)
At close: Mar 9, 2026, 4:00 PM EDT
4.570
+0.080 (1.78%)
After-hours: Mar 9, 2026, 4:10 PM EDT
Atossa Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026 | 4.53 | 4.60 | 4.36 | 4.57 | 4.57 | 0.88% | 129,133 |
| Mar 6, 2026 | 4.56 | 4.67 | 4.44 | 4.53 | 4.53 | -3.21% | 46,143 |
| Mar 5, 2026 | 4.92 | 5.01 | 4.52 | 4.68 | 4.68 | -4.88% | 70,708 |
| Mar 4, 2026 | 4.79 | 5.12 | 4.71 | 4.92 | 4.92 | 4.24% | 136,363 |
| Mar 3, 2026 | 4.54 | 4.91 | 4.31 | 4.72 | 4.72 | 4.89% | 102,344 |
| Mar 2, 2026 | 4.35 | 4.55 | 4.23 | 4.50 | 4.50 | 1.58% | 88,045 |
| Feb 27, 2026 | 4.43 | 4.59 | 4.35 | 4.43 | 4.43 | -0.89% | 69,251 |
| Feb 26, 2026 | 4.36 | 4.60 | 4.30 | 4.47 | 4.47 | 4.68% | 89,563 |
| Feb 25, 2026 | 4.23 | 4.44 | 4.15 | 4.27 | 4.27 | 1.43% | 77,472 |
| Feb 24, 2026 | 4.01 | 4.27 | 4.00 | 4.21 | 4.21 | 6.31% | 96,160 |
| Feb 23, 2026 | 4.11 | 4.15 | 3.84 | 3.96 | 3.96 | -5.94% | 105,399 |
| Feb 20, 2026 | 4.38 | 4.48 | 4.15 | 4.21 | 4.21 | -4.75% | 42,940 |
| Feb 19, 2026 | 4.35 | 4.55 | 4.20 | 4.42 | 4.42 | 1.84% | 68,262 |
| Feb 18, 2026 | 4.06 | 4.59 | 4.06 | 4.34 | 4.34 | 4.58% | 85,595 |
| Feb 17, 2026 | 4.14 | 4.20 | 3.97 | 4.15 | 4.15 | -1.19% | 92,561 |
| Feb 13, 2026 | 3.92 | 4.44 | 3.91 | 4.20 | 4.20 | 6.60% | 94,093 |
| Feb 12, 2026 | 4.05 | 4.15 | 3.76 | 3.94 | 3.94 | -2.72% | 243,055 |
| Feb 11, 2026 | 4.76 | 4.77 | 4.03 | 4.05 | 4.05 | -15.98% | 347,560 |
| Feb 10, 2026 | 4.91 | 5.05 | 4.80 | 4.82 | 4.82 | -3.41% | 190,284 |
| Feb 9, 2026 | 5.32 | 5.33 | 4.78 | 4.99 | 4.99 | -6.55% | 324,787 |
| Feb 6, 2026 | 5.33 | 5.54 | 5.21 | 5.34 | 5.34 | 0.19% | 154,637 |
| Feb 5, 2026 | 5.03 | 5.47 | 5.01 | 5.33 | 5.33 | 0.76% | 183,625 |
| Feb 4, 2026 | 5.41 | 5.51 | 4.92 | 5.29 | 5.29 | -4.34% | 282,407 |
| Feb 3, 2026 | 5.60 | 5.85 | 4.91 | 5.53 | 5.53 | -1.07% | 639,101 |
| Feb 2, 2026 | 7.23 | 7.56 | 5.40 | 5.59 | 5.59 | -34.04% | 665,615 |
| Jan 30, 2026 | 8.94 | 8.99 | 7.98 | 8.48 | 8.47 | -5.83% | 189,392 |
| Jan 29, 2026 | 9.26 | 9.26 | 8.55 | 9.00 | 9.00 | -2.66% | 118,356 |
| Jan 28, 2026 | 10.10 | 10.37 | 9.15 | 9.25 | 9.25 | -9.99% | 141,435 |
| Jan 27, 2026 | 10.50 | 10.95 | 9.92 | 10.27 | 10.27 | -0.07% | 124,891 |
| Jan 26, 2026 | 9.50 | 10.65 | 9.04 | 10.28 | 10.28 | 6.73% | 211,374 |
| Jan 23, 2026 | 9.90 | 9.90 | 9.45 | 9.63 | 9.63 | -1.91% | 50,141 |
| Jan 22, 2026 | 9.30 | 9.83 | 8.88 | 9.82 | 9.82 | 8.51% | 77,698 |
| Jan 21, 2026 | 9.00 | 9.30 | 8.78 | 9.05 | 9.05 | 0.04% | 60,963 |
| Jan 20, 2026 | 9.91 | 9.92 | 8.70 | 9.05 | 9.04 | -1.95% | 262,989 |
| Jan 16, 2026 | 9.16 | 9.54 | 8.85 | 9.23 | 9.22 | 6.02% | 776,060 |
| Jan 15, 2026 | 9.15 | 9.15 | 8.56 | 8.70 | 8.70 | -3.64% | 107,020 |
| Jan 14, 2026 | 9.42 | 9.52 | 9.00 | 9.03 | 9.03 | -5.30% | 109,599 |
| Jan 13, 2026 | 9.90 | 10.01 | 9.52 | 9.54 | 9.54 | -2.78% | 35,906 |
| Jan 12, 2026 | 9.64 | 9.86 | 9.24 | 9.81 | 9.81 | 1.36% | 48,445 |
| Jan 9, 2026 | 9.90 | 10.04 | 9.45 | 9.68 | 9.68 | -1.21% | 59,552 |
| Jan 8, 2026 | 10.05 | 10.15 | 9.53 | 9.80 | 9.79 | -1.81% | 60,259 |
| Jan 7, 2026 | 10.05 | 10.50 | 9.85 | 9.98 | 9.98 | 0.71% | 44,540 |
| Jan 6, 2026 | 9.15 | 10.23 | 9.12 | 9.91 | 9.91 | 7.00% | 157,128 |
| Jan 5, 2026 | 9.75 | 9.75 | 9.00 | 9.26 | 9.26 | -2.12% | 78,020 |
| Jan 2, 2026 | 8.89 | 9.51 | 8.89 | 9.46 | 9.46 | 6.88% | 103,153 |
| Dec 31, 2025 | 9.00 | 9.15 | 8.27 | 8.85 | 8.85 | -5.06% | 247,868 |
| Dec 30, 2025 | 9.77 | 9.82 | 9.23 | 9.32 | 9.32 | -5.64% | 110,973 |
| Dec 29, 2025 | 9.66 | 10.35 | 9.66 | 9.88 | 9.88 | -0.04% | 70,717 |
| Dec 26, 2025 | 10.20 | 10.35 | 9.72 | 9.88 | 9.88 | -3.99% | 65,168 |
| Dec 24, 2025 | 10.20 | 10.45 | 9.98 | 10.29 | 10.29 | 0.32% | 45,707 |
| Dec 23, 2025 | 10.55 | 10.69 | 9.99 | 10.26 | 10.26 | -4.62% | 152,537 |
| Dec 22, 2025 | 10.98 | 11.19 | 10.67 | 10.76 | 10.76 | -1.90% | 42,895 |
| Dec 19, 2025 | 10.65 | 11.10 | 10.52 | 10.97 | 10.97 | 3.82% | 63,053 |
| Dec 18, 2025 | 10.63 | 11.10 | 10.50 | 10.56 | 10.56 | -1.38% | 41,933 |
| Dec 17, 2025 | 11.10 | 11.24 | 10.68 | 10.71 | 10.71 | -1.46% | 32,133 |
| Dec 16, 2025 | 10.50 | 11.07 | 10.50 | 10.87 | 10.87 | 1.40% | 39,636 |
| Dec 15, 2025 | 11.10 | 11.58 | 10.50 | 10.72 | 10.72 | -13.37% | 193,386 |
| Dec 12, 2025 | 13.23 | 13.71 | 12.30 | 12.38 | 12.37 | -8.82% | 97,135 |
| Dec 11, 2025 | 14.40 | 14.85 | 13.42 | 13.57 | 13.57 | 6.45% | 388,289 |
| Dec 10, 2025 | 12.30 | 13.05 | 12.05 | 12.75 | 12.75 | 5.11% | 68,381 |
| Dec 9, 2025 | 11.72 | 12.30 | 11.72 | 12.13 | 12.13 | 3.46% | 38,707 |
| Dec 8, 2025 | 12.30 | 12.30 | 11.55 | 11.72 | 11.72 | -2.21% | 30,700 |
| Dec 5, 2025 | 11.70 | 12.13 | 11.51 | 11.99 | 11.99 | 5.24% | 56,285 |
| Dec 4, 2025 | 11.14 | 11.61 | 11.01 | 11.39 | 11.39 | 2.84% | 47,211 |
| Dec 3, 2025 | 10.64 | 11.15 | 10.43 | 11.08 | 11.08 | 5.49% | 41,475 |
| Dec 2, 2025 | 10.94 | 11.18 | 10.27 | 10.50 | 10.50 | -5.65% | 80,975 |
| Dec 1, 2025 | 11.87 | 12.00 | 11.10 | 11.13 | 11.13 | -4.56% | 49,784 |
| Nov 28, 2025 | 11.87 | 11.87 | 11.57 | 11.66 | 11.66 | -0.30% | 15,895 |
| Nov 26, 2025 | 11.63 | 12.11 | 11.58 | 11.70 | 11.70 | 1.14% | 41,903 |
| Nov 25, 2025 | 11.36 | 11.67 | 11.27 | 11.57 | 11.56 | 2.58% | 15,807 |
| Nov 24, 2025 | 12.00 | 12.30 | 11.23 | 11.27 | 11.27 | -3.67% | 52,851 |
| Nov 21, 2025 | 11.30 | 11.75 | 11.16 | 11.70 | 11.70 | 3.75% | 39,688 |
| Nov 20, 2025 | 11.46 | 11.94 | 11.28 | 11.28 | 11.28 | -1.52% | 33,130 |
| Nov 19, 2025 | 11.85 | 12.00 | 11.37 | 11.45 | 11.45 | -3.34% | 30,228 |
| Nov 18, 2025 | 11.62 | 12.30 | 11.58 | 11.85 | 11.85 | 0.64% | 28,524 |
| Nov 17, 2025 | 12.15 | 12.75 | 11.55 | 11.78 | 11.77 | -1.87% | 50,776 |
| Nov 14, 2025 | 11.85 | 12.37 | 11.69 | 12.00 | 12.00 | -0.33% | 32,198 |
| Nov 13, 2025 | 11.96 | 12.38 | 11.55 | 12.04 | 12.04 | -1.30% | 52,125 |
| Nov 12, 2025 | 12.42 | 12.69 | 11.87 | 12.20 | 12.20 | -1.74% | 41,541 |
| Nov 11, 2025 | 12.60 | 12.75 | 12.15 | 12.42 | 12.42 | -1.21% | 15,748 |
| Nov 10, 2025 | 12.45 | 13.18 | 12.45 | 12.57 | 12.57 | 2.11% | 31,883 |
| Nov 7, 2025 | 12.00 | 12.45 | 11.70 | 12.31 | 12.31 | 0.74% | 58,757 |
| Nov 6, 2025 | 12.45 | 12.65 | 12.17 | 12.22 | 12.22 | -1.57% | 21,800 |
| Nov 5, 2025 | 12.60 | 12.72 | 12.38 | 12.41 | 12.41 | -2.43% | 24,341 |
| Nov 4, 2025 | 12.83 | 13.34 | 12.60 | 12.72 | 12.72 | -1.76% | 40,357 |
| Nov 3, 2025 | 13.50 | 13.61 | 12.80 | 12.95 | 12.95 | -2.96% | 35,576 |
| Oct 31, 2025 | 13.10 | 13.64 | 13.05 | 13.34 | 13.34 | 1.09% | 29,634 |
| Oct 30, 2025 | 12.98 | 13.46 | 12.90 | 13.20 | 13.20 | 0.36% | 37,099 |
| Oct 29, 2025 | 13.91 | 14.03 | 12.89 | 13.15 | 13.15 | -6.26% | 55,830 |
| Oct 28, 2025 | 14.15 | 14.37 | 13.96 | 14.03 | 14.03 | -0.82% | 23,524 |
| Oct 27, 2025 | 14.00 | 14.37 | 13.80 | 14.15 | 14.15 | 1.18% | 37,271 |
| Oct 24, 2025 | 13.80 | 14.14 | 13.65 | 13.98 | 13.98 | 1.84% | 42,463 |
| Oct 23, 2025 | 13.88 | 14.25 | 13.50 | 13.73 | 13.73 | -0.50% | 32,096 |
| Oct 22, 2025 | 14.55 | 14.55 | 13.52 | 13.80 | 13.80 | -4.65% | 90,438 |
| Oct 21, 2025 | 15.00 | 15.23 | 14.42 | 14.47 | 14.47 | -4.47% | 43,268 |
| Oct 20, 2025 | 14.97 | 15.23 | 14.69 | 15.15 | 15.15 | 3.10% | 40,258 |
| Oct 17, 2025 | 15.15 | 15.45 | 14.31 | 14.69 | 14.69 | -4.89% | 80,569 |
| Oct 16, 2025 | 15.75 | 16.50 | 15.00 | 15.45 | 15.45 | -1.90% | 70,823 |
| Oct 15, 2025 | 15.60 | 16.20 | 15.45 | 15.75 | 15.75 | 1.94% | 54,555 |
| Oct 14, 2025 | 15.30 | 15.90 | 14.41 | 15.45 | 15.45 | -1.90% | 102,134 |