American Superconductor Corporation (AMSC)
NASDAQ: AMSC · Real-Time Price · USD
32.47
-0.54 (-1.64%)
At close: Dec 5, 2025, 4:00 PM EST
32.50
+0.03 (0.09%)
After-hours: Dec 5, 2025, 7:54 PM EST
American Superconductor Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 33.01 | 33.16 | 31.95 | 32.47 | 32.47 | -1.64% | 740,449 |
| Dec 4, 2025 | 31.79 | 33.50 | 31.70 | 33.01 | 33.01 | 3.03% | 737,459 |
| Dec 3, 2025 | 30.74 | 32.15 | 29.90 | 32.04 | 32.04 | 4.06% | 518,110 |
| Dec 2, 2025 | 30.63 | 31.64 | 30.50 | 30.79 | 30.79 | 2.80% | 812,056 |
| Dec 1, 2025 | 30.09 | 30.95 | 29.65 | 29.95 | 29.95 | -3.67% | 880,374 |
| Nov 28, 2025 | 30.91 | 31.41 | 30.58 | 31.09 | 31.09 | 1.93% | 584,957 |
| Nov 26, 2025 | 31.32 | 31.50 | 30.27 | 30.50 | 30.50 | -0.81% | 1,132,350 |
| Nov 25, 2025 | 31.07 | 31.24 | 29.53 | 30.75 | 30.75 | -1.66% | 999,753 |
| Nov 24, 2025 | 30.82 | 31.83 | 30.54 | 31.27 | 31.27 | 2.93% | 879,624 |
| Nov 21, 2025 | 29.73 | 30.98 | 28.70 | 30.38 | 30.38 | 2.01% | 1,198,268 |
| Nov 20, 2025 | 32.88 | 33.42 | 29.70 | 29.78 | 29.78 | -4.49% | 1,124,203 |
| Nov 19, 2025 | 32.17 | 32.61 | 30.81 | 31.18 | 31.18 | 0.03% | 662,948 |
| Nov 18, 2025 | 31.40 | 32.57 | 30.69 | 31.17 | 31.17 | -2.99% | 1,055,951 |
| Nov 17, 2025 | 33.74 | 34.01 | 31.69 | 32.13 | 32.13 | -5.25% | 972,307 |
| Nov 14, 2025 | 32.07 | 34.85 | 31.84 | 33.91 | 33.91 | 0.83% | 875,342 |
| Nov 13, 2025 | 34.79 | 35.18 | 32.82 | 33.63 | 33.63 | -4.41% | 1,379,007 |
| Nov 12, 2025 | 35.96 | 36.40 | 34.43 | 35.18 | 35.18 | -0.40% | 859,348 |
| Nov 11, 2025 | 36.34 | 36.34 | 34.16 | 35.32 | 35.32 | -4.31% | 1,494,791 |
| Nov 10, 2025 | 40.28 | 40.90 | 36.70 | 36.91 | 36.91 | -5.02% | 2,093,153 |
| Nov 7, 2025 | 35.80 | 38.87 | 33.81 | 38.86 | 38.86 | 6.32% | 3,040,089 |
| Nov 6, 2025 | 42.81 | 44.83 | 36.20 | 36.55 | 36.55 | -38.49% | 5,403,888 |
| Nov 5, 2025 | 57.20 | 60.65 | 56.08 | 59.42 | 59.42 | 5.56% | 1,095,201 |
| Nov 4, 2025 | 57.30 | 58.80 | 55.26 | 56.29 | 56.29 | -7.16% | 676,680 |
| Nov 3, 2025 | 59.75 | 61.30 | 58.51 | 60.63 | 60.63 | 2.36% | 631,722 |
| Oct 31, 2025 | 60.79 | 61.20 | 58.10 | 59.23 | 59.23 | 0.53% | 702,134 |
| Oct 30, 2025 | 61.78 | 62.63 | 58.11 | 58.92 | 58.92 | -6.49% | 957,218 |
| Oct 29, 2025 | 57.97 | 64.72 | 57.97 | 63.01 | 63.01 | 8.90% | 1,369,582 |
| Oct 28, 2025 | 57.48 | 59.36 | 56.69 | 57.86 | 57.86 | 0.02% | 684,977 |
| Oct 27, 2025 | 61.00 | 61.59 | 56.96 | 57.85 | 57.85 | -2.90% | 943,159 |
| Oct 24, 2025 | 58.40 | 61.94 | 57.47 | 59.58 | 59.58 | 5.40% | 1,093,903 |
| Oct 23, 2025 | 54.85 | 57.20 | 54.01 | 56.53 | 56.53 | 3.19% | 870,449 |
| Oct 22, 2025 | 58.83 | 59.49 | 52.75 | 54.78 | 54.78 | -7.56% | 1,737,835 |
| Oct 21, 2025 | 61.07 | 61.07 | 58.01 | 59.26 | 59.26 | -2.90% | 652,054 |
| Oct 20, 2025 | 61.92 | 63.70 | 59.31 | 61.03 | 61.03 | 1.68% | 863,696 |
| Oct 17, 2025 | 60.86 | 62.50 | 57.80 | 60.02 | 60.02 | -4.81% | 1,009,954 |
| Oct 16, 2025 | 68.56 | 68.56 | 62.19 | 63.05 | 63.05 | -5.44% | 822,809 |
| Oct 15, 2025 | 68.76 | 70.49 | 63.84 | 66.68 | 66.68 | 1.74% | 1,519,118 |
| Oct 14, 2025 | 59.21 | 66.55 | 57.01 | 65.54 | 65.54 | 6.45% | 1,910,255 |
| Oct 13, 2025 | 58.72 | 62.22 | 58.28 | 61.57 | 61.57 | 9.48% | 1,115,749 |
| Oct 10, 2025 | 59.74 | 63.01 | 56.07 | 56.24 | 56.24 | -5.95% | 1,255,885 |
| Oct 9, 2025 | 61.00 | 61.61 | 59.19 | 59.80 | 59.80 | -1.49% | 831,246 |
| Oct 8, 2025 | 57.32 | 61.04 | 57.29 | 60.70 | 60.70 | 7.34% | 1,112,182 |
| Oct 7, 2025 | 61.48 | 62.79 | 55.51 | 56.55 | 56.55 | -7.26% | 1,817,990 |
| Oct 6, 2025 | 62.40 | 63.64 | 58.71 | 60.98 | 60.98 | 2.83% | 1,069,083 |
| Oct 3, 2025 | 60.00 | 62.16 | 58.38 | 59.30 | 59.30 | 0.08% | 1,557,874 |
| Oct 2, 2025 | 60.06 | 60.99 | 58.26 | 59.25 | 59.25 | 0.14% | 809,249 |
| Oct 1, 2025 | 58.74 | 60.08 | 57.62 | 59.17 | 59.17 | -0.37% | 661,612 |
| Sep 30, 2025 | 60.93 | 61.50 | 57.80 | 59.39 | 59.39 | -2.38% | 1,059,682 |
| Sep 29, 2025 | 59.50 | 62.00 | 59.50 | 60.84 | 60.84 | 3.88% | 1,259,251 |
| Sep 26, 2025 | 58.86 | 59.75 | 57.49 | 58.57 | 58.57 | 1.06% | 710,479 |
| Sep 25, 2025 | 56.69 | 58.98 | 54.13 | 57.96 | 57.96 | -2.78% | 1,046,245 |
| Sep 24, 2025 | 62.10 | 62.41 | 58.13 | 59.61 | 59.61 | -2.82% | 1,230,150 |
| Sep 23, 2025 | 64.15 | 64.53 | 60.06 | 61.34 | 61.34 | -5.09% | 1,226,572 |
| Sep 22, 2025 | 61.78 | 65.12 | 60.31 | 64.63 | 64.63 | 5.00% | 1,487,834 |
| Sep 19, 2025 | 65.51 | 65.70 | 60.65 | 61.55 | 61.55 | -4.56% | 2,874,151 |
| Sep 18, 2025 | 63.06 | 65.58 | 60.05 | 64.49 | 64.49 | 6.61% | 2,386,813 |
| Sep 17, 2025 | 56.34 | 61.11 | 55.39 | 60.49 | 60.49 | 7.04% | 2,111,366 |
| Sep 16, 2025 | 56.50 | 56.60 | 54.89 | 56.51 | 56.51 | -0.14% | 645,242 |
| Sep 15, 2025 | 57.00 | 57.25 | 55.30 | 56.59 | 56.59 | 0.48% | 796,099 |
| Sep 12, 2025 | 54.95 | 57.30 | 54.10 | 56.32 | 56.32 | 2.92% | 1,329,419 |
| Sep 11, 2025 | 52.06 | 54.96 | 51.90 | 54.72 | 54.72 | 6.36% | 1,134,452 |
| Sep 10, 2025 | 51.61 | 53.49 | 51.20 | 51.45 | 51.45 | 3.21% | 1,083,693 |
| Sep 9, 2025 | 50.00 | 50.63 | 47.52 | 49.85 | 49.85 | -0.46% | 685,177 |
| Sep 8, 2025 | 49.25 | 51.47 | 48.85 | 50.08 | 50.08 | 2.45% | 1,055,089 |
| Sep 5, 2025 | 49.63 | 50.10 | 47.20 | 48.88 | 48.88 | 0.72% | 633,533 |
| Sep 4, 2025 | 48.12 | 49.51 | 47.36 | 48.53 | 48.53 | -0.21% | 1,077,637 |
| Sep 3, 2025 | 49.67 | 50.27 | 48.49 | 48.63 | 48.63 | -0.27% | 710,674 |
| Sep 2, 2025 | 48.11 | 49.42 | 46.46 | 48.76 | 48.76 | -2.28% | 807,124 |
| Aug 29, 2025 | 53.66 | 53.66 | 49.75 | 49.90 | 49.90 | -7.32% | 1,108,914 |
| Aug 28, 2025 | 52.52 | 54.62 | 52.46 | 53.84 | 53.84 | 3.33% | 743,860 |
| Aug 27, 2025 | 52.51 | 53.14 | 51.10 | 52.11 | 52.11 | -0.30% | 842,436 |
| Aug 26, 2025 | 49.92 | 52.50 | 49.44 | 52.26 | 52.26 | 5.41% | 964,554 |
| Aug 25, 2025 | 50.60 | 50.81 | 49.55 | 49.58 | 49.58 | -2.17% | 503,786 |
| Aug 22, 2025 | 48.60 | 51.20 | 47.81 | 50.68 | 50.68 | 4.30% | 760,328 |
| Aug 21, 2025 | 47.92 | 49.41 | 47.62 | 48.59 | 48.59 | 1.00% | 935,406 |
| Aug 20, 2025 | 48.28 | 48.95 | 46.46 | 48.11 | 48.11 | -1.45% | 1,222,682 |
| Aug 19, 2025 | 52.79 | 53.41 | 48.56 | 48.82 | 48.82 | -8.68% | 1,418,601 |
| Aug 18, 2025 | 53.73 | 54.57 | 52.16 | 53.46 | 53.46 | 0.75% | 737,379 |
| Aug 15, 2025 | 52.15 | 53.09 | 50.03 | 53.06 | 53.06 | 1.73% | 907,688 |
| Aug 14, 2025 | 53.34 | 55.45 | 51.75 | 52.16 | 52.16 | -3.57% | 954,555 |
| Aug 13, 2025 | 56.76 | 57.54 | 53.00 | 54.09 | 54.09 | -3.21% | 1,271,418 |
| Aug 12, 2025 | 52.60 | 56.23 | 52.60 | 55.89 | 55.89 | 7.16% | 1,114,677 |
| Aug 11, 2025 | 51.28 | 53.67 | 50.70 | 52.15 | 52.15 | 2.27% | 1,028,284 |
| Aug 8, 2025 | 54.18 | 54.62 | 50.45 | 50.99 | 50.99 | -6.10% | 1,245,365 |
| Aug 7, 2025 | 55.00 | 55.99 | 52.10 | 54.30 | 54.30 | -1.04% | 1,063,580 |
| Aug 6, 2025 | 55.53 | 55.78 | 54.23 | 54.87 | 54.87 | -1.35% | 794,899 |
| Aug 5, 2025 | 56.15 | 58.42 | 54.62 | 55.62 | 55.62 | 0.18% | 1,268,765 |
| Aug 4, 2025 | 54.79 | 56.61 | 53.71 | 55.52 | 55.52 | 3.29% | 1,662,247 |
| Aug 1, 2025 | 53.21 | 55.36 | 50.67 | 53.75 | 53.75 | -5.45% | 2,403,730 |
| Jul 31, 2025 | 47.80 | 57.86 | 47.70 | 56.85 | 56.85 | 29.38% | 5,321,388 |
| Jul 30, 2025 | 43.55 | 44.85 | 43.24 | 43.94 | 43.94 | 1.06% | 1,223,483 |
| Jul 29, 2025 | 44.23 | 44.61 | 43.33 | 43.48 | 43.48 | -0.64% | 796,957 |
| Jul 28, 2025 | 44.17 | 44.17 | 42.55 | 43.76 | 43.76 | 1.30% | 777,801 |
| Jul 25, 2025 | 43.50 | 44.74 | 42.73 | 43.20 | 43.20 | 0.44% | 1,002,958 |
| Jul 24, 2025 | 43.13 | 43.50 | 42.60 | 43.01 | 43.01 | 0.12% | 612,407 |
| Jul 23, 2025 | 41.43 | 43.15 | 41.11 | 42.96 | 42.96 | 4.20% | 885,274 |
| Jul 22, 2025 | 42.01 | 42.28 | 38.80 | 41.23 | 41.23 | -2.53% | 1,127,049 |
| Jul 21, 2025 | 43.09 | 43.27 | 42.05 | 42.30 | 42.30 | -0.98% | 856,516 |
| Jul 18, 2025 | 41.38 | 43.41 | 41.15 | 42.72 | 42.72 | 3.24% | 1,279,561 |
| Jul 17, 2025 | 41.11 | 42.08 | 40.78 | 41.38 | 41.38 | 0.75% | 809,411 |