Atara Biotherapeutics, Inc. (ATRA)
NASDAQ: ATRA · Real-Time Price · USD
4.760
-0.230 (-4.61%)
At close: Apr 28, 2026, 4:00 PM EDT
4.730
-0.030 (-0.63%)
After-hours: Apr 28, 2026, 4:10 PM EDT
Atara Biotherapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 28, 2026 | 4.96 | 4.97 | 4.73 | 4.73 | 4.73 | -5.21% | 33,047 |
| Apr 27, 2026 | 4.94 | 5.21 | 4.75 | 4.99 | 4.99 | -0.40% | 52,277 |
| Apr 24, 2026 | 4.94 | 5.11 | 4.80 | 5.01 | 5.01 | 2.24% | 26,580 |
| Apr 23, 2026 | 5.16 | 5.22 | 4.89 | 4.90 | 4.90 | -5.41% | 34,647 |
| Apr 22, 2026 | 4.99 | 5.30 | 4.99 | 5.18 | 5.18 | 3.81% | 61,506 |
| Apr 21, 2026 | 5.00 | 5.26 | 4.91 | 4.99 | 4.99 | - | 34,338 |
| Apr 20, 2026 | 5.25 | 5.27 | 4.92 | 4.99 | 4.99 | -5.31% | 82,224 |
| Apr 17, 2026 | 5.27 | 5.55 | 5.26 | 5.27 | 5.27 | 0.57% | 76,213 |
| Apr 16, 2026 | 5.22 | 5.43 | 5.18 | 5.24 | 5.24 | - | 34,824 |
| Apr 15, 2026 | 5.14 | 5.38 | 5.11 | 5.24 | 5.24 | 1.75% | 53,634 |
| Apr 14, 2026 | 4.89 | 5.32 | 4.77 | 5.15 | 5.15 | 5.32% | 87,524 |
| Apr 13, 2026 | 4.65 | 5.12 | 4.56 | 4.89 | 4.89 | 5.16% | 91,774 |
| Apr 10, 2026 | 4.84 | 5.00 | 4.52 | 4.65 | 4.65 | -3.73% | 87,060 |
| Apr 9, 2026 | 5.03 | 5.04 | 4.44 | 4.83 | 4.83 | -3.59% | 131,356 |
| Apr 8, 2026 | 4.91 | 5.20 | 4.73 | 5.01 | 5.01 | 6.37% | 121,569 |
| Apr 7, 2026 | 4.86 | 4.97 | 4.60 | 4.71 | 4.71 | -3.29% | 32,219 |
| Apr 6, 2026 | 5.01 | 5.22 | 4.80 | 4.87 | 4.87 | -2.40% | 53,400 |
| Apr 2, 2026 | 5.00 | 5.26 | 4.87 | 4.99 | 4.99 | -3.48% | 47,022 |
| Apr 1, 2026 | 4.86 | 5.25 | 4.78 | 5.17 | 5.17 | 9.30% | 79,829 |
| Mar 31, 2026 | 4.40 | 4.86 | 4.40 | 4.73 | 4.73 | 9.49% | 63,518 |
| Mar 30, 2026 | 4.59 | 4.69 | 4.30 | 4.32 | 4.32 | -5.88% | 77,140 |
| Mar 27, 2026 | 4.71 | 4.99 | 4.59 | 4.59 | 4.59 | -2.55% | 51,349 |
| Mar 26, 2026 | 4.88 | 5.07 | 4.70 | 4.71 | 4.71 | -5.04% | 67,120 |
| Mar 25, 2026 | 5.07 | 5.35 | 4.95 | 4.96 | 4.96 | -0.60% | 66,119 |
| Mar 24, 2026 | 4.83 | 5.25 | 4.70 | 4.99 | 4.99 | 2.99% | 99,391 |
| Mar 23, 2026 | 5.00 | 5.03 | 4.76 | 4.85 | 4.85 | -1.32% | 67,886 |
| Mar 20, 2026 | 5.10 | 5.26 | 4.82 | 4.91 | 4.91 | -4.10% | 62,849 |
| Mar 19, 2026 | 4.91 | 5.24 | 4.85 | 5.12 | 5.12 | 2.40% | 83,878 |
| Mar 18, 2026 | 5.06 | 5.21 | 4.82 | 5.00 | 5.00 | -4.40% | 135,740 |
| Mar 17, 2026 | 5.74 | 5.74 | 5.06 | 5.23 | 5.23 | -10.90% | 319,698 |
| Mar 16, 2026 | 6.41 | 6.45 | 5.80 | 5.87 | 5.87 | -9.69% | 228,120 |
| Mar 13, 2026 | 6.80 | 7.00 | 6.21 | 6.50 | 6.50 | -5.80% | 171,888 |
| Mar 12, 2026 | 6.46 | 7.07 | 6.05 | 6.90 | 6.90 | 10.75% | 509,755 |
| Mar 11, 2026 | 6.18 | 6.50 | 5.60 | 6.23 | 6.23 | -0.95% | 382,580 |
| Mar 10, 2026 | 6.45 | 7.05 | 6.05 | 6.29 | 6.29 | -5.84% | 644,240 |
| Mar 9, 2026 | 5.71 | 7.30 | 5.50 | 6.68 | 6.68 | 29.21% | 3,222,713 |
| Mar 6, 2026 | 4.85 | 5.37 | 4.70 | 5.17 | 5.17 | 3.40% | 3,201,173 |
| Mar 5, 2026 | 5.33 | 5.33 | 4.94 | 5.00 | 5.00 | -7.24% | 76,432 |
| Mar 4, 2026 | 5.39 | 5.50 | 5.13 | 5.39 | 5.39 | -0.55% | 67,999 |
| Mar 3, 2026 | 4.88 | 5.65 | 4.82 | 5.42 | 5.42 | 10.39% | 387,977 |
| Mar 2, 2026 | 5.21 | 5.23 | 4.91 | 4.91 | 4.91 | -9.41% | 130,042 |
| Feb 27, 2026 | 5.12 | 5.49 | 4.80 | 5.42 | 5.42 | 3.04% | 130,816 |
| Feb 26, 2026 | 5.01 | 5.89 | 4.68 | 5.26 | 5.26 | 3.95% | 510,862 |
| Feb 25, 2026 | 4.19 | 5.56 | 4.17 | 5.06 | 5.06 | 20.19% | 570,915 |
| Feb 24, 2026 | 4.15 | 4.33 | 4.03 | 4.21 | 4.21 | 0.24% | 41,205 |
| Feb 23, 2026 | 4.12 | 4.20 | 3.92 | 4.20 | 4.20 | 0.48% | 145,936 |
| Feb 20, 2026 | 4.26 | 4.30 | 4.13 | 4.18 | 4.18 | -1.42% | 55,490 |
| Feb 19, 2026 | 4.37 | 4.37 | 4.13 | 4.24 | 4.24 | -4.29% | 100,573 |
| Feb 18, 2026 | 4.47 | 4.64 | 4.34 | 4.43 | 4.43 | -1.34% | 103,737 |
| Feb 17, 2026 | 4.46 | 4.60 | 4.38 | 4.49 | 4.49 | 0.90% | 54,101 |
| Feb 13, 2026 | 4.45 | 4.68 | 4.45 | 4.45 | 4.45 | - | 29,890 |
| Feb 12, 2026 | 4.60 | 4.70 | 4.37 | 4.45 | 4.45 | -3.05% | 103,734 |
| Feb 11, 2026 | 4.84 | 4.86 | 4.51 | 4.59 | 4.59 | -4.97% | 124,687 |
| Feb 10, 2026 | 4.96 | 5.11 | 4.80 | 4.83 | 4.83 | -3.01% | 50,195 |
| Feb 9, 2026 | 4.86 | 5.06 | 4.70 | 4.98 | 4.98 | 2.05% | 51,432 |
| Feb 6, 2026 | 4.58 | 4.92 | 4.58 | 4.88 | 4.88 | 8.20% | 100,026 |
| Feb 5, 2026 | 4.62 | 4.97 | 4.50 | 4.51 | 4.51 | -7.20% | 133,126 |
| Feb 4, 2026 | 5.07 | 5.18 | 4.76 | 4.86 | 4.86 | -3.57% | 101,953 |
| Feb 3, 2026 | 5.03 | 5.25 | 5.00 | 5.04 | 5.04 | - | 89,679 |
| Feb 2, 2026 | 5.11 | 5.27 | 5.00 | 5.04 | 5.04 | -3.08% | 93,715 |
| Jan 30, 2026 | 5.45 | 5.59 | 4.91 | 5.20 | 5.20 | -5.63% | 202,311 |
| Jan 29, 2026 | 5.53 | 5.69 | 5.40 | 5.51 | 5.51 | 0.18% | 176,288 |
| Jan 28, 2026 | 5.60 | 5.71 | 5.35 | 5.50 | 5.50 | -1.08% | 192,836 |
| Jan 27, 2026 | 5.20 | 5.68 | 5.20 | 5.56 | 5.56 | 5.10% | 293,121 |
| Jan 26, 2026 | 5.22 | 5.42 | 5.07 | 5.29 | 5.29 | 1.34% | 217,437 |
| Jan 23, 2026 | 4.98 | 5.35 | 4.90 | 5.22 | 5.22 | 4.40% | 363,690 |
| Jan 22, 2026 | 4.58 | 5.15 | 4.46 | 5.00 | 5.00 | 8.70% | 570,031 |
| Jan 21, 2026 | 4.34 | 4.69 | 4.20 | 4.60 | 4.60 | 6.48% | 418,495 |
| Jan 20, 2026 | 4.50 | 4.79 | 4.25 | 4.32 | 4.32 | -4.85% | 597,794 |
| Jan 16, 2026 | 4.72 | 5.00 | 4.52 | 4.54 | 4.54 | -1.73% | 509,376 |
| Jan 15, 2026 | 4.52 | 5.19 | 4.40 | 4.62 | 4.62 | 3.36% | 1,098,329 |
| Jan 14, 2026 | 4.50 | 4.82 | 4.36 | 4.47 | 4.47 | 2.29% | 871,129 |
| Jan 13, 2026 | 5.95 | 5.96 | 4.25 | 4.37 | 4.37 | -25.68% | 2,501,087 |
| Jan 12, 2026 | 5.62 | 6.51 | 5.58 | 5.88 | 5.88 | -56.99% | 4,629,462 |
| Jan 9, 2026 | 17.68 | 17.98 | 13.08 | 13.67 | 13.67 | -21.62% | 852,260 |
| Jan 8, 2026 | 15.10 | 17.97 | 14.90 | 17.44 | 17.44 | 16.73% | 418,035 |
| Jan 7, 2026 | 15.16 | 15.53 | 14.72 | 14.94 | 14.94 | 2.54% | 256,266 |
| Jan 6, 2026 | 16.97 | 17.65 | 14.27 | 14.57 | 14.57 | -13.58% | 228,681 |
| Jan 5, 2026 | 18.47 | 19.15 | 16.61 | 16.86 | 16.86 | -5.12% | 216,180 |
| Jan 2, 2026 | 18.35 | 19.08 | 17.64 | 17.77 | 17.77 | -1.77% | 111,214 |
| Dec 31, 2025 | 17.95 | 18.34 | 17.94 | 18.09 | 18.09 | 1.17% | 66,485 |
| Dec 30, 2025 | 17.92 | 18.25 | 17.54 | 17.88 | 17.88 | -0.61% | 48,068 |
| Dec 29, 2025 | 17.15 | 17.99 | 16.80 | 17.99 | 17.99 | 4.17% | 72,969 |
| Dec 26, 2025 | 17.61 | 18.30 | 16.59 | 17.27 | 17.27 | -1.82% | 71,173 |
| Dec 24, 2025 | 17.70 | 18.04 | 16.91 | 17.59 | 17.59 | 0.51% | 67,924 |
| Dec 23, 2025 | 17.97 | 18.75 | 17.36 | 17.50 | 17.50 | -2.02% | 66,889 |
| Dec 22, 2025 | 16.90 | 18.95 | 16.90 | 17.86 | 17.86 | 4.02% | 105,640 |
| Dec 19, 2025 | 17.70 | 18.09 | 16.51 | 17.17 | 17.17 | -0.35% | 79,656 |
| Dec 18, 2025 | 17.22 | 17.80 | 17.12 | 17.23 | 17.23 | 0.29% | 36,354 |
| Dec 17, 2025 | 17.70 | 18.15 | 16.70 | 17.18 | 17.18 | -2.28% | 59,423 |
| Dec 16, 2025 | 17.79 | 18.00 | 17.12 | 17.58 | 17.58 | -2.06% | 62,156 |
| Dec 15, 2025 | 18.00 | 18.25 | 17.66 | 17.95 | 17.95 | -0.25% | 69,301 |
| Dec 12, 2025 | 17.82 | 18.17 | 16.65 | 18.00 | 18.00 | 0.98% | 103,345 |
| Dec 11, 2025 | 16.50 | 18.37 | 16.40 | 17.82 | 17.82 | 5.88% | 102,105 |
| Dec 10, 2025 | 15.65 | 17.25 | 15.36 | 16.83 | 16.83 | 7.27% | 132,716 |
| Dec 9, 2025 | 14.97 | 15.95 | 14.37 | 15.69 | 15.69 | 4.05% | 62,316 |
| Dec 8, 2025 | 14.52 | 15.09 | 14.43 | 15.08 | 15.08 | 5.23% | 52,281 |
| Dec 5, 2025 | 14.26 | 14.75 | 14.08 | 14.33 | 14.33 | 0.92% | 69,064 |
| Dec 4, 2025 | 12.55 | 14.25 | 12.55 | 14.20 | 14.20 | 13.15% | 127,385 |
| Dec 3, 2025 | 12.35 | 12.86 | 12.05 | 12.55 | 12.55 | 2.70% | 63,022 |