NASDAQ:AMSC | Historical Stock Price | AMERICAN SUPERCONDUCTOR CORP /DE/

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1991-12-12 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.07$8.94$26.03$75.81$220.81$643.121991-12-122026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2022

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2022-12-30$3.68$3.68205,600
2022-12-29$3.52$3.52178,400
2022-12-28$3.34$3.34179,100
2022-12-27$3.35$3.35169,600
2022-12-23$3.40$3.40171,400
2022-12-22$3.58$3.58187,200
2022-12-21$3.80$3.80172,800
2022-12-20$3.68$3.68279,900
2022-12-19$3.54$3.54274,800
2022-12-16$3.54$3.541,006,500
2022-12-15$3.64$3.64395,200
2022-12-14$3.60$3.60326,900
2022-12-13$3.29$3.29218,200
2022-12-12$3.37$3.37339,100
2022-12-09$3.42$3.42140,800
2022-12-08$3.35$3.35138,900
2022-12-07$3.32$3.32173,000
2022-12-06$3.54$3.54220,700
2022-12-05$3.70$3.70113,000
2022-12-02$3.95$3.9565,700
2022-12-01$3.95$3.95199,600
2022-11-30$3.76$3.76226,600
2022-11-29$3.91$3.91182,200
2022-11-28$4.09$4.09539,200
2022-11-25$4.23$4.2347,600
2022-11-23$4.12$4.1267,400
2022-11-22$3.95$3.95214,200
2022-11-21$3.95$3.95195,500
2022-11-18$3.99$3.9991,700
2022-11-17$3.93$3.9388,300
2022-11-16$4.06$4.06105,000
2022-11-15$4.18$4.1896,700
2022-11-14$4.01$4.01109,300
2022-11-11$4.12$4.12124,500
2022-11-10$3.91$3.91200,500
2022-11-09$3.49$3.49118,400
2022-11-08$3.66$3.6678,600
2022-11-07$3.82$3.82231,200
2022-11-04$3.72$3.72264,300
2022-11-03$3.76$3.76297,200
2022-11-02$3.63$3.631,394,800
2022-11-01$4.74$4.74221,700
2022-10-31$4.52$4.52153,800
2022-10-28$4.27$4.2781,500
2022-10-27$4.27$4.27123,600
2022-10-26$4.44$4.44147,400
2022-10-25$4.32$4.3289,400
2022-10-24$4.20$4.20122,100
2022-10-21$4.07$4.07124,500
2022-10-20$4.00$4.00106,600
2022-10-19$4.08$4.0890,200
2022-10-18$4.15$4.15159,000
2022-10-17$3.98$3.98128,700
2022-10-14$3.87$3.87143,800
2022-10-13$3.99$3.99158,100
2022-10-12$3.92$3.92179,200
2022-10-11$3.88$3.88233,900
2022-10-10$3.98$3.98484,900
2022-10-07$4.31$4.31266,900
2022-10-06$4.53$4.53137,500
2022-10-05$4.77$4.77101,200
2022-10-04$4.86$4.86126,500
2022-10-03$4.59$4.59157,100
2022-09-30$4.38$4.38134,500
2022-09-29$4.45$4.45354,900
2022-09-28$4.58$4.58307,500
2022-09-27$4.55$4.55186,300
2022-09-26$4.46$4.46128,700
2022-09-23$4.45$4.45364,000
2022-09-22$4.66$4.66346,200
2022-09-21$4.85$4.85165,000
2022-09-20$5.02$5.02246,000
2022-09-19$5.43$5.43278,200
2022-09-16$5.20$5.20516,800
2022-09-15$4.91$4.91164,200
2022-09-14$4.91$4.91217,900
2022-09-13$4.78$4.78252,100
2022-09-12$5.07$5.07243,000
2022-09-09$4.92$4.92199,000
2022-09-08$4.82$4.82455,800
2022-09-07$5.19$5.19176,100
2022-09-06$5.12$5.12127,700
2022-09-02$5.20$5.20210,900
2022-09-01$5.13$5.13202,000
2022-08-31$5.34$5.34173,400
2022-08-30$5.20$5.20335,700
2022-08-29$5.28$5.28122,700
2022-08-26$5.48$5.48122,100
2022-08-25$5.74$5.74108,600
2022-08-24$5.51$5.51132,300
2022-08-23$5.31$5.31161,000
2022-08-22$5.21$5.21183,100
2022-08-19$5.47$5.47249,500
2022-08-18$5.79$5.79289,900
2022-08-17$5.80$5.80160,200
2022-08-16$6.05$6.05179,200
2022-08-15$6.09$6.09307,900
2022-08-12$6.13$6.13228,400
2022-08-11$5.66$5.66393,000
2022-08-10$5.38$5.38271,100
2022-08-09$4.99$4.99442,200
2022-08-08$5.19$5.19432,100
2022-08-05$5.20$5.20492,800
2022-08-04$5.44$5.44591,400
2022-08-03$6.23$6.23168,700
2022-08-02$6.14$6.14138,300
2022-08-01$5.94$5.94243,500
2022-07-29$6.14$6.14208,600
2022-07-28$5.78$5.78302,800
2022-07-27$5.27$5.27270,500
2022-07-26$4.76$4.76102,600
2022-07-25$4.86$4.8682,900
2022-07-22$4.96$4.96177,500
2022-07-21$5.28$5.28129,700
2022-07-20$5.17$5.17202,900
2022-07-19$4.76$4.76375,000
2022-07-18$4.89$4.89225,600
2022-07-15$4.74$4.74169,000
2022-07-14$4.82$4.8295,500
2022-07-13$4.84$4.84128,300
2022-07-12$4.74$4.74204,900
2022-07-11$4.76$4.76477,600
2022-07-08$5.09$5.09323,100
2022-07-07$5.10$5.10296,000
2022-07-06$4.84$4.84159,700
2022-07-05$4.90$4.90273,300
2022-07-01$4.86$4.86176,800
2022-06-30$5.18$5.18413,100
2022-06-29$4.85$4.851,657,900
2022-06-28$5.01$5.01343,100
2022-06-27$5.38$5.38501,900
2022-06-24$5.35$5.353,546,900
2022-06-23$5.32$5.32850,200
2022-06-22$4.74$4.74840,300
2022-06-21$4.52$4.52764,400
2022-06-17$4.73$4.731,113,900
2022-06-16$4.89$4.89277,400
2022-06-15$5.30$5.30413,100
2022-06-14$5.09$5.09496,300
2022-06-13$6.07$6.07506,800
2022-06-10$5.92$5.92278,700
2022-06-09$6.32$6.32233,400
2022-06-08$6.25$6.25236,200
2022-06-07$6.33$6.33340,100
2022-06-06$6.03$6.03269,800
2022-06-03$6.03$6.03441,100
2022-06-02$6.32$6.32815,900
2022-06-01$5.28$5.28388,700
2022-05-31$5.34$5.34367,500
2022-05-27$5.50$5.50281,800
2022-05-26$5.42$5.42195,300
2022-05-25$5.05$5.0587,700
2022-05-24$5.00$5.00130,200
2022-05-23$5.27$5.27211,700
2022-05-20$5.21$5.21163,800
2022-05-19$5.27$5.27146,600
2022-05-18$5.17$5.17217,900
2022-05-17$5.37$5.37237,800
2022-05-16$4.97$4.97207,900
2022-05-13$5.15$5.15209,600
2022-05-12$4.79$4.79243,000
2022-05-11$4.66$4.66339,800
2022-05-10$4.96$4.96290,500
2022-05-09$4.87$4.87336,800
2022-05-06$5.33$5.33167,400
2022-05-05$5.62$5.62223,300
2022-05-04$5.94$5.94266,700
2022-05-03$5.57$5.57248,700
2022-05-02$5.60$5.60251,600
2022-04-29$5.33$5.33302,300
2022-04-28$5.55$5.55345,600
2022-04-27$5.45$5.45350,300
2022-04-26$5.63$5.63277,400
2022-04-25$6.07$6.07385,000
2022-04-22$6.07$6.07327,300
2022-04-21$6.11$6.11292,700
2022-04-20$6.40$6.40229,700
2022-04-19$6.82$6.82256,100
2022-04-18$6.70$6.70190,700
2022-04-14$6.86$6.86186,700
2022-04-13$7.13$7.13124,000
2022-04-12$7.05$7.05126,500
2022-04-11$7.11$7.11168,100
2022-04-08$7.04$7.04253,900
2022-04-07$7.33$7.33290,800
2022-04-06$7.51$7.51294,500
2022-04-05$8.14$8.14252,200
2022-04-04$8.24$8.24237,800
2022-04-01$7.64$7.64243,700
2022-03-31$7.61$7.61302,100
2022-03-30$7.73$7.73733,500
2022-03-29$8.17$8.17275,400
2022-03-28$8.00$8.00344,700
2022-03-25$8.47$8.47283,600
2022-03-24$8.76$8.76454,600
2022-03-23$8.51$8.51310,900
2022-03-22$8.90$8.90172,500
2022-03-21$8.76$8.76334,600
2022-03-18$8.99$8.99664,000
2022-03-17$8.78$8.78274,100
2022-03-16$8.34$8.34249,300
2022-03-15$7.94$7.94292,100
2022-03-14$7.40$7.40378,500
2022-03-11$8.31$8.31229,300
2022-03-10$9.18$9.18316,300
2022-03-09$9.72$9.72290,200
2022-03-08$9.90$9.90551,500
2022-03-07$8.63$8.63322,500
2022-03-04$7.93$7.93492,400
2022-03-03$8.06$8.06161,700
2022-03-02$8.53$8.53158,600
2022-03-01$8.54$8.54192,900
2022-02-28$8.49$8.49324,500
2022-02-25$8.18$8.18135,400
2022-02-24$8.13$8.13247,200
2022-02-23$7.48$7.48207,500
2022-02-22$7.61$7.61197,400
2022-02-18$7.68$7.68163,200
2022-02-17$7.95$7.95123,500
2022-02-16$8.33$8.33110,300
2022-02-15$8.43$8.43277,100
2022-02-14$7.80$7.80168,200
2022-02-11$7.71$7.71159,400
2022-02-10$7.98$7.98280,300
2022-02-09$8.36$8.36184,000
2022-02-08$7.98$7.98206,900
2022-02-07$7.87$7.87195,400
2022-02-04$8.05$8.05194,100
2022-02-03$7.88$7.88294,700
2022-02-02$8.18$8.18290,800
2022-02-01$8.65$8.65529,800
2022-01-31$8.20$8.20327,600
2022-01-28$7.37$7.37281,600
2022-01-27$7.38$7.38252,400
2022-01-26$7.84$7.84198,800
2022-01-25$8.10$8.10217,100
2022-01-24$8.25$8.25535,400
2022-01-21$7.98$7.98271,500
2022-01-20$8.53$8.53229,500
2022-01-19$8.74$8.74247,900
2022-01-18$9.09$9.09221,100
2022-01-14$9.60$9.60268,900
2022-01-13$9.33$9.33172,000
2022-01-12$9.65$9.65160,900
2022-01-11$9.96$9.96167,500
2022-01-10$9.89$9.89246,400
2022-01-07$10.23$10.23151,500
2022-01-06$10.34$10.34178,500
2022-01-05$10.48$10.48248,500
2022-01-04$10.99$10.99225,800
2022-01-03$11.02$11.02216,200