American Superconductor Corporation (AMSC)

American Superconductor Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 26, 2026	38.96	41.19	38.02	39.73	39.73	-1.37%	2,076,000
Jun 25, 2026	41.93	42.84	40.07	40.28	40.28	-1.40%	960,363
Jun 24, 2026	42.13	42.24	39.60	40.85	40.85	-1.87%	839,526
Jun 23, 2026	42.04	44.11	41.60	41.63	41.63	-8.15%	765,792
Jun 22, 2026	43.72	45.43	42.99	45.33	45.33	4.44%	1,030,606
Jun 18, 2026	41.49	43.49	40.44	43.40	43.40	8.15%	1,120,234
Jun 17, 2026	40.57	42.18	40.07	40.13	40.13	-0.82%	796,774
Jun 16, 2026	41.07	42.36	40.35	40.46	40.46	-1.49%	1,113,683
Jun 15, 2026	42.06	42.98	40.52	41.07	41.07	2.62%	920,519
Jun 12, 2026	39.51	40.62	38.71	40.02	40.02	1.29%	812,097
Jun 11, 2026	37.44	39.54	36.71	39.51	39.51	7.42%	1,842,920
Jun 10, 2026	40.29	40.96	36.72	36.78	36.78	-9.25%	2,420,049
Jun 9, 2026	43.66	44.76	38.92	40.53	40.53	-6.48%	1,558,694
Jun 8, 2026	42.86	44.39	40.76	43.34	43.34	2.36%	1,583,255
Jun 5, 2026	45.34	45.95	41.20	42.34	42.34	-8.75%	1,820,755
Jun 4, 2026	45.64	47.24	45.19	46.40	46.40	-0.58%	1,263,829
Jun 3, 2026	51.00	51.30	46.24	46.67	46.67	-8.79%	1,478,527
Jun 2, 2026	51.46	52.55	48.87	51.17	51.17	0.04%	1,281,733
Jun 1, 2026	49.47	51.99	48.77	51.15	51.15	0.41%	1,133,995
May 29, 2026	51.19	53.37	48.52	50.94	50.94	-0.76%	1,336,647
May 28, 2026	50.00	51.37	45.46	51.33	51.33	-2.56%	3,439,465
May 27, 2026	53.60	55.09	51.55	52.68	52.68	-0.83%	1,942,181
May 26, 2026	54.00	54.40	51.28	53.12	53.12	2.47%	1,179,384
May 22, 2026	50.28	52.48	48.86	51.84	51.84	4.90%	746,642
May 21, 2026	48.64	50.66	48.39	49.42	49.42	0.41%	659,823
May 20, 2026	48.46	50.10	47.22	49.22	49.22	4.52%	933,307
May 19, 2026	48.10	48.62	45.72	47.09	47.09	-6.10%	1,168,371
May 18, 2026	54.86	55.11	48.52	50.15	50.15	-8.92%	1,264,214
May 15, 2026	51.53	55.24	50.32	55.06	55.06	0.66%	1,059,765
May 14, 2026	55.73	55.78	52.58	54.70	54.70	-1.85%	1,210,718
May 13, 2026	55.81	56.25	53.00	55.73	55.73	2.24%	977,276
May 12, 2026	57.04	57.05	51.32	54.51	54.51	-7.17%	1,314,800
May 11, 2026	55.10	60.18	54.81	58.72	58.72	6.40%	1,749,703
May 8, 2026	54.37	55.68	53.47	55.19	55.19	3.70%	859,757
May 7, 2026	56.09	56.90	52.66	53.22	53.22	-6.75%	1,201,571
May 6, 2026	55.59	57.18	53.71	57.07	57.07	3.74%	1,080,324
May 5, 2026	50.99	55.70	50.99	55.01	55.01	9.36%	1,400,576
May 4, 2026	52.51	53.00	48.53	50.30	50.30	-4.21%	1,068,761
May 1, 2026	53.22	54.20	51.42	52.51	52.51	-1.92%	1,310,429
Apr 30, 2026	49.23	53.65	48.00	53.54	53.54	12.24%	1,863,819
Apr 29, 2026	47.79	48.60	45.69	47.70	47.70	0.42%	1,293,242
Apr 28, 2026	47.91	49.49	45.57	47.50	47.50	-4.31%	1,769,648
Apr 27, 2026	52.39	52.39	46.01	49.64	49.64	0.32%	2,525,355
Apr 24, 2026	48.14	50.78	45.50	49.48	49.48	7.22%	2,319,312
Apr 23, 2026	51.25	51.47	44.47	46.15	46.15	-4.15%	2,644,641
Apr 22, 2026	43.40	48.23	43.40	48.15	48.15	14.83%	2,463,651
Apr 21, 2026	41.36	42.93	40.75	41.93	41.93	2.95%	1,586,955
Apr 20, 2026	39.37	40.84	38.81	40.73	40.73	2.54%	692,339
Apr 17, 2026	39.00	40.75	38.13	39.72	39.72	4.61%	1,058,393
Apr 16, 2026	37.86	38.59	36.89	37.97	37.97	0.61%	917,306

Data Source: S&P Global Market Intelligence Last updated: Jun 26, 2026

Historical price data is provided by S&P Global Market Intelligence. New prices are added after the close of each trading day, and past prices are adjusted for stock splits.

Update frequency:

Daily

Last checked:

Jun 27, 2026

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