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.

View year

Historical Stock Price — 2013

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2013-12-31$16.40$16.40225,140
2013-12-30$15.20$15.20152,200
2013-12-27$15.00$15.0080,120
2013-12-26$14.90$14.9060,620
2013-12-24$15.40$15.4080,060
2013-12-23$14.60$14.6086,330
2013-12-20$14.40$14.40122,940
2013-12-19$14.20$14.2057,630
2013-12-18$14.40$14.4066,280
2013-12-17$14.40$14.40210,910
2013-12-16$13.90$13.9070,410
2013-12-13$14.30$14.3055,590
2013-12-12$14.40$14.4066,790
2013-12-11$14.80$14.8048,470
2013-12-10$15.10$15.1080,580
2013-12-09$15.10$15.1051,760
2013-12-06$15.40$15.4063,960
2013-12-05$15.10$15.1041,260
2013-12-04$15.00$15.0058,880
2013-12-03$15.50$15.5050,100
2013-12-02$15.70$15.70136,950
2013-11-29$16.30$16.30183,980
2013-11-27$15.10$15.1064,140
2013-11-26$15.10$15.1044,610
2013-11-25$15.00$15.0078,440
2013-11-22$14.90$14.90157,990
2013-11-21$15.10$15.1093,520
2013-11-20$16.10$16.1050,550
2013-11-19$16.90$16.9094,650
2013-11-18$16.10$16.10200,180
2013-11-15$18.80$18.8044,760
2013-11-14$19.40$19.4044,540
2013-11-13$19.70$19.7061,990
2013-11-12$20.00$20.0032,790
2013-11-11$19.70$19.7037,780
2013-11-08$19.30$19.3060,050
2013-11-07$19.50$19.5094,560
2013-11-06$21.10$21.1051,940
2013-11-05$20.20$20.2048,050
2013-11-04$20.10$20.1095,980
2013-11-01$20.90$20.9090,580
2013-10-31$21.80$21.8065,770
2013-10-30$22.90$22.9023,290
2013-10-29$22.90$22.9060,970
2013-10-28$23.20$23.2027,220
2013-10-25$23.20$23.2021,380
2013-10-24$22.90$22.9019,500
2013-10-23$22.90$22.9029,000
2013-10-22$23.20$23.2042,450
2013-10-21$23.70$23.7047,300
2013-10-18$22.90$22.9033,570
2013-10-17$22.80$22.8030,110
2013-10-16$22.30$22.3022,910
2013-10-15$22.00$22.0027,230
2013-10-14$22.90$22.9024,460
2013-10-11$22.70$22.7018,470
2013-10-10$22.50$22.5031,170
2013-10-09$21.90$21.9034,480
2013-10-08$21.80$21.8029,330
2013-10-07$21.70$21.7030,240
2013-10-04$22.10$22.1027,990
2013-10-03$22.10$22.1032,770
2013-10-02$22.20$22.2044,190
2013-10-01$22.70$22.7074,850
2013-09-30$23.40$23.4051,600
2013-09-27$23.10$23.1063,680
2013-09-26$24.20$24.2043,830
2013-09-25$23.10$23.1040,640
2013-09-24$24.00$24.0019,830
2013-09-23$23.40$23.4050,270
2013-09-20$24.20$24.2048,320
2013-09-19$24.40$24.4018,690
2013-09-18$24.10$24.1031,690
2013-09-17$24.00$24.0026,680
2013-09-16$24.00$24.0090,930
2013-09-13$25.20$25.2019,700
2013-09-12$24.70$24.7037,970
2013-09-11$26.10$26.1045,050
2013-09-10$25.80$25.8053,660
2013-09-09$24.90$24.9070,920
2013-09-06$23.60$23.6022,830
2013-09-05$23.60$23.6039,490
2013-09-04$23.70$23.7042,330
2013-09-03$23.20$23.2048,030
2013-08-30$23.70$23.7075,980
2013-08-29$24.40$24.4034,210
2013-08-28$24.30$24.3033,560
2013-08-27$23.80$23.8052,020
2013-08-26$25.10$25.1040,120
2013-08-23$24.50$24.5024,360
2013-08-22$24.20$24.2024,350
2013-08-21$24.40$24.4041,630
2013-08-20$24.60$24.6037,460
2013-08-19$24.20$24.2028,560
2013-08-16$25.50$25.5038,610
2013-08-15$24.70$24.7066,470
2013-08-14$25.50$25.5042,430
2013-08-13$25.40$25.4049,040
2013-08-12$25.60$25.6061,670
2013-08-09$24.30$24.3041,930
2013-08-08$24.80$24.8055,990
2013-08-07$24.40$24.4067,530
2013-08-06$25.50$25.5047,510
2013-08-05$26.30$26.3032,120
2013-08-02$25.50$25.5031,580
2013-08-01$25.70$25.7032,700
2013-07-31$25.10$25.1056,490
2013-07-30$26.20$26.2032,320
2013-07-29$26.80$26.8024,400
2013-07-26$27.60$27.6036,200
2013-07-25$27.80$27.8027,570
2013-07-24$27.80$27.8043,360
2013-07-23$28.10$28.1089,620
2013-07-22$30.30$30.30140,960
2013-07-19$28.00$28.0040,690
2013-07-18$27.20$27.2068,160
2013-07-17$28.40$28.4078,740
2013-07-16$27.30$27.3052,090
2013-07-15$26.80$26.8034,730
2013-07-12$26.40$26.4029,140
2013-07-11$26.40$26.4033,590
2013-07-10$25.60$25.6026,960
2013-07-09$25.10$25.1053,900
2013-07-08$26.10$26.1089,440
2013-07-05$26.30$26.3042,920
2013-07-03$25.10$25.1018,660
2013-07-02$25.20$25.2088,340
2013-07-01$27.60$27.60141,410
2013-06-28$26.40$26.40355,650
2013-06-27$23.40$23.40140,960
2013-06-26$22.80$22.8052,710
2013-06-25$22.50$22.5030,450
2013-06-24$21.90$21.9031,830
2013-06-21$22.70$22.7044,710
2013-06-20$22.00$22.0068,120
2013-06-19$22.60$22.6061,460
2013-06-18$21.60$21.60130,730
2013-06-17$23.00$23.0060,380
2013-06-14$23.50$23.50167,800
2013-06-13$26.50$26.5052,980
2013-06-12$25.00$25.0044,240
2013-06-11$25.50$25.5047,600
2013-06-10$26.80$26.8052,740
2013-06-07$25.20$25.2062,930
2013-06-06$25.70$25.7036,590
2013-06-05$26.10$26.1055,030
2013-06-04$26.50$26.5047,820
2013-06-03$27.10$27.1099,000
2013-05-31$26.60$26.60127,570
2013-05-30$28.80$28.80118,440
2013-05-29$28.30$28.3082,070
2013-05-28$29.20$29.20107,220
2013-05-24$26.80$26.8042,530
2013-05-23$26.80$26.8029,590
2013-05-22$27.10$27.1096,390
2013-05-21$30.40$30.40187,540
2013-05-20$27.30$27.30130,090
2013-05-17$25.20$25.2033,490
2013-05-16$24.30$24.3017,050
2013-05-15$25.10$25.1020,010
2013-05-14$24.70$24.7015,540
2013-05-13$24.70$24.7015,040
2013-05-10$24.10$24.1026,900
2013-05-09$24.40$24.4016,050
2013-05-08$25.20$25.2017,040
2013-05-07$25.70$25.7044,910
2013-05-06$24.80$24.8025,310
2013-05-03$24.20$24.2033,200
2013-05-02$23.70$23.7050,900
2013-05-01$23.50$23.5039,110
2013-04-30$25.10$25.1021,030
2013-04-29$24.30$24.3037,880
2013-04-26$25.30$25.3023,780
2013-04-25$25.10$25.1029,780
2013-04-24$25.30$25.3057,690
2013-04-23$24.30$24.3048,250
2013-04-22$24.10$24.1035,200
2013-04-19$25.10$25.1047,510
2013-04-18$23.70$23.7057,430
2013-04-17$24.30$24.3060,880
2013-04-16$23.50$23.5073,110
2013-04-15$24.30$24.3067,990
2013-04-12$26.00$26.0040,450
2013-04-11$26.40$26.4043,040
2013-04-10$25.80$25.8038,390
2013-04-09$25.70$25.7042,470
2013-04-08$25.90$25.9029,580
2013-04-05$25.30$25.3036,780
2013-04-04$26.10$26.1029,510
2013-04-03$25.90$25.9036,000
2013-04-02$26.90$26.9052,990
2013-04-01$25.70$25.7047,840
2013-03-28$26.70$26.7054,220
2013-03-27$26.10$26.1032,460
2013-03-26$26.40$26.4062,280
2013-03-25$27.80$27.8051,090
2013-03-22$27.10$27.1042,380
2013-03-21$28.00$28.0020,460
2013-03-20$27.90$27.9020,330
2013-03-19$27.90$27.9030,640
2013-03-18$28.00$28.0028,270
2013-03-15$27.90$27.9073,340
2013-03-14$27.80$27.8033,670
2013-03-13$28.60$28.6026,690
2013-03-12$28.50$28.5046,620
2013-03-11$27.00$27.0030,280
2013-03-08$27.80$27.8028,500
2013-03-07$27.00$27.0027,950
2013-03-06$27.50$27.5031,180
2013-03-05$27.00$27.0045,000
2013-03-04$27.70$27.7050,850
2013-03-01$28.80$28.8020,570
2013-02-28$28.90$28.9039,310
2013-02-27$29.40$29.4035,650
2013-02-26$28.50$28.5078,500
2013-02-25$29.50$29.5038,330
2013-02-22$31.90$31.9030,650
2013-02-21$30.80$30.8049,210
2013-02-20$30.80$30.8031,590
2013-02-19$31.40$31.4056,090
2013-02-15$31.70$31.7042,820
2013-02-14$31.50$31.5066,410
2013-02-13$32.70$32.7085,270
2013-02-12$31.50$31.50186,970
2013-02-11$31.30$31.30150,710
2013-02-08$28.30$28.3025,940
2013-02-07$28.40$28.4041,990
2013-02-06$29.10$29.1063,240
2013-02-05$27.00$27.0014,330
2013-02-04$26.90$26.9033,190
2013-02-01$26.70$26.7031,610
2013-01-31$26.50$26.5015,660
2013-01-30$26.10$26.1040,290
2013-01-29$27.10$27.1020,930
2013-01-28$27.30$27.3017,750
2013-01-25$27.50$27.5030,040
2013-01-24$28.00$28.0041,930
2013-01-23$27.50$27.5021,200
2013-01-22$27.90$27.9024,130
2013-01-18$27.90$27.9020,990
2013-01-17$28.20$28.2023,010
2013-01-16$27.80$27.8035,510
2013-01-15$28.30$28.3052,570
2013-01-14$27.00$27.0027,810
2013-01-11$27.20$27.2034,070
2013-01-10$27.60$27.6030,020
2013-01-09$29.00$29.0015,650
2013-01-08$28.20$28.2021,230
2013-01-07$27.90$27.9031,340
2013-01-04$29.00$29.0026,480
2013-01-03$29.00$29.0043,900
2013-01-02$28.30$28.3049,330