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 — 2002

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2002-12-31$30.10$30.1022,650
2002-12-30$30.40$30.4015,320
2002-12-27$33.00$33.008,890
2002-12-26$34.30$34.306,420
2002-12-24$33.80$33.803,600
2002-12-23$34.30$34.3011,510
2002-12-20$36.50$36.5014,600
2002-12-19$36.50$36.507,400
2002-12-18$40.10$40.108,750
2002-12-17$41.70$41.7010,010
2002-12-16$38.60$38.608,680
2002-12-13$37.00$37.004,390
2002-12-12$37.70$37.705,520
2002-12-11$39.20$39.204,740
2002-12-10$38.00$38.005,690
2002-12-09$35.10$35.104,170
2002-12-06$35.20$35.206,980
2002-12-05$37.70$37.707,630
2002-12-04$38.10$38.105,010
2002-12-03$36.00$36.008,210
2002-12-02$39.20$39.2017,570
2002-11-29$36.00$36.004,340
2002-11-27$35.90$35.9014,790
2002-11-26$34.20$34.2010,350
2002-11-25$35.70$35.7012,400
2002-11-22$35.00$35.0010,260
2002-11-21$35.50$35.5014,360
2002-11-20$35.00$35.0010,240
2002-11-19$35.00$35.008,900
2002-11-18$35.20$35.2016,480
2002-11-15$34.80$34.8010,080
2002-11-14$36.00$36.0012,910
2002-11-13$34.20$34.2011,770
2002-11-12$33.50$33.505,380
2002-11-11$30.30$30.3012,800
2002-11-08$33.50$33.504,570
2002-11-07$33.30$33.3066,120
2002-11-06$33.40$33.4012,100
2002-11-05$37.00$37.0014,280
2002-11-04$37.00$37.0011,600
2002-11-01$36.50$36.5010,230
2002-10-31$38.70$38.7016,710
2002-10-30$33.30$33.305,550
2002-10-29$32.60$32.606,370
2002-10-28$31.50$31.509,580
2002-10-25$32.30$32.306,980
2002-10-24$29.90$29.9010,060
2002-10-23$27.00$27.004,560
2002-10-22$25.30$25.306,440
2002-10-21$27.70$27.705,040
2002-10-18$27.30$27.301,460
2002-10-17$27.60$27.6011,480
2002-10-16$25.90$25.902,750
2002-10-15$27.90$27.905,400
2002-10-14$26.10$26.101,800
2002-10-11$27.90$27.906,570
2002-10-10$27.00$27.006,350
2002-10-09$26.60$26.604,460
2002-10-08$27.40$27.408,960
2002-10-07$24.20$24.204,150
2002-10-04$24.00$24.008,170
2002-10-03$22.50$22.5012,170
2002-10-02$26.40$26.403,830
2002-10-01$26.50$26.508,810
2002-09-30$27.00$27.006,700
2002-09-27$28.20$28.205,040
2002-09-26$29.00$29.006,240
2002-09-25$30.00$30.007,550
2002-09-24$29.80$29.8011,310
2002-09-23$29.70$29.702,660
2002-09-20$31.80$31.8011,600
2002-09-19$33.10$33.105,820
2002-09-18$35.00$35.007,970
2002-09-17$29.70$29.7010,300
2002-09-16$33.50$33.506,010
2002-09-13$31.50$31.509,640
2002-09-12$29.80$29.805,290
2002-09-11$31.30$31.30870
2002-09-10$32.50$32.502,390
2002-09-09$31.90$31.909,180
2002-09-06$34.00$34.005,320
2002-09-05$33.10$33.1011,360
2002-09-04$35.00$35.004,010
2002-09-03$33.80$33.808,340
2002-08-30$38.00$38.002,740
2002-08-29$41.70$41.702,230
2002-08-28$37.60$37.607,200
2002-08-27$39.70$39.702,810
2002-08-26$42.50$42.505,380
2002-08-23$39.20$39.204,360
2002-08-22$43.90$43.904,040
2002-08-21$42.10$42.102,860
2002-08-20$42.50$42.503,760
2002-08-19$40.90$40.906,290
2002-08-16$43.60$43.603,140
2002-08-15$41.00$41.002,200
2002-08-14$45.00$45.003,750
2002-08-13$40.50$40.501,830
2002-08-12$43.90$43.903,300
2002-08-09$40.30$40.302,220
2002-08-08$45.00$45.003,330
2002-08-07$43.10$43.106,280
2002-08-06$40.30$40.3016,990
2002-08-05$36.50$36.509,340
2002-08-02$37.60$37.6015,000
2002-08-01$40.30$40.306,570
2002-07-31$41.30$41.305,380
2002-07-30$48.00$48.006,980
2002-07-29$48.20$48.205,650
2002-07-26$53.50$53.5012,040
2002-07-25$53.80$53.8046,430
2002-07-24$47.40$47.408,050
2002-07-23$41.40$41.404,270
2002-07-22$43.00$43.006,160
2002-07-19$40.70$40.704,710
2002-07-18$40.00$40.006,950
2002-07-17$43.10$43.107,820
2002-07-16$40.10$40.1012,340
2002-07-15$42.60$42.607,220
2002-07-12$43.20$43.204,230
2002-07-11$45.50$45.508,520
2002-07-10$46.80$46.805,240
2002-07-09$47.00$47.002,850
2002-07-08$46.70$46.706,550
2002-07-05$45.20$45.205,660
2002-07-03$43.40$43.406,390
2002-07-02$40.00$40.007,540
2002-07-01$40.50$40.5010,210
2002-06-28$54.60$54.6021,610
2002-06-27$49.80$49.8011,650
2002-06-26$44.00$44.0010,990
2002-06-25$41.30$41.308,610
2002-06-24$41.70$41.709,030
2002-06-21$41.20$41.2016,040
2002-06-20$44.40$44.409,730
2002-06-19$46.10$46.1011,570
2002-06-18$50.20$50.2015,910
2002-06-17$53.60$53.604,020
2002-06-14$55.00$55.007,920
2002-06-13$57.30$57.308,380
2002-06-12$57.00$57.009,930
2002-06-11$61.30$61.3012,720
2002-06-10$65.30$65.304,520
2002-06-07$68.50$68.503,840
2002-06-06$67.00$67.003,370
2002-06-05$73.20$73.204,650
2002-06-04$68.00$68.005,980
2002-06-03$69.90$69.9011,870
2002-05-31$71.60$71.606,340
2002-05-30$72.60$72.605,530
2002-05-29$72.70$72.707,310
2002-05-28$74.80$74.805,440
2002-05-24$72.60$72.604,960
2002-05-23$77.30$77.307,240
2002-05-22$72.00$72.0010,690
2002-05-21$76.00$76.009,620
2002-05-20$73.60$73.605,540
2002-05-17$76.40$76.405,150
2002-05-16$76.60$76.604,750
2002-05-15$76.10$76.1015,360
2002-05-14$72.10$72.1010,320
2002-05-13$68.30$68.307,600
2002-05-10$69.40$69.405,510
2002-05-09$70.00$70.005,640
2002-05-08$69.80$69.808,060
2002-05-07$67.60$67.606,100
2002-05-06$71.00$71.005,000
2002-05-03$75.50$75.505,200
2002-05-02$75.30$75.306,680
2002-05-01$75.00$75.001,890
2002-04-30$77.20$77.209,940
2002-04-29$71.90$71.909,980
2002-04-26$73.90$73.905,970
2002-04-25$79.00$79.008,110
2002-04-24$78.00$78.004,590
2002-04-23$78.10$78.104,530
2002-04-22$79.20$79.207,160
2002-04-19$82.30$82.3012,170
2002-04-18$85.40$85.4012,040
2002-04-17$81.40$81.406,690
2002-04-16$78.10$78.107,780
2002-04-15$78.50$78.507,320
2002-04-12$75.00$75.005,310
2002-04-11$69.20$69.204,880
2002-04-10$70.80$70.8012,640
2002-04-09$74.50$74.503,940
2002-04-08$75.60$75.604,440
2002-04-05$77.60$77.6014,260
2002-04-04$84.30$84.3011,780
2002-04-03$79.90$79.907,740
2002-04-02$78.40$78.406,760
2002-04-01$79.20$79.2011,990
2002-03-28$75.50$75.507,210
2002-03-27$77.50$77.5019,170
2002-03-26$79.50$79.5043,510
2002-03-25$80.60$80.6011,520
2002-03-22$80.90$80.908,790
2002-03-21$83.10$83.1026,240
2002-03-20$78.60$78.6013,270
2002-03-19$74.90$74.9013,230
2002-03-18$83.80$83.804,790
2002-03-15$85.00$85.0012,870
2002-03-14$83.40$83.403,900
2002-03-13$84.60$84.609,240
2002-03-12$87.50$87.5014,440
2002-03-11$88.10$88.1013,760
2002-03-08$85.50$85.506,790
2002-03-07$87.00$87.0030,610
2002-03-06$84.40$84.4023,130
2002-03-05$76.30$76.306,280
2002-03-04$79.90$79.9019,710
2002-03-01$74.80$74.8015,000
2002-02-28$71.00$71.0022,130
2002-02-27$70.50$70.5016,390
2002-02-26$71.10$71.1019,660
2002-02-25$69.10$69.1022,640
2002-02-22$72.60$72.6021,570
2002-02-21$80.00$80.0041,630
2002-02-20$77.80$77.8049,280
2002-02-19$70.80$70.8015,930
2002-02-15$74.20$74.2018,500
2002-02-14$71.50$71.508,960
2002-02-13$74.50$74.5010,480
2002-02-12$70.20$70.2012,100
2002-02-11$65.60$65.6022,300
2002-02-08$70.70$70.7014,780
2002-02-07$72.00$72.0012,100
2002-02-06$71.50$71.506,730
2002-02-05$72.50$72.5020,470
2002-02-04$71.50$71.5027,600
2002-02-01$83.10$83.107,620
2002-01-31$84.50$84.507,990
2002-01-30$87.20$87.2026,790
2002-01-29$85.00$85.0028,760
2002-01-28$93.00$93.003,710
2002-01-25$94.00$94.0013,970
2002-01-24$93.50$93.505,960
2002-01-23$97.70$97.7011,120
2002-01-22$95.10$95.1017,260
2002-01-18$95.60$95.6026,170
2002-01-17$96.50$96.5049,010
2002-01-16$110.20$110.209,500
2002-01-15$109.30$109.3012,870
2002-01-14$110.20$110.209,930
2002-01-11$118.90$118.904,960
2002-01-10$119.70$119.707,370
2002-01-09$121.70$121.707,330
2002-01-08$123.10$123.1015,690
2002-01-07$127.60$127.6011,630
2002-01-04$133.00$133.007,090
2002-01-03$129.30$129.3011,410
2002-01-02$130.00$130.0011,110