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 — 1994

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1994-12-30$247.50$247.501,890
1994-12-29$238.75$238.75370
1994-12-28$235.00$235.002,970
1994-12-27$245.00$245.00120
1994-12-23$255.00$255.00450
1994-12-22$245.00$245.0016,120
1994-12-21$245.00$245.002,620
1994-12-20$245.00$245.002,580
1994-12-19$252.50$252.50710
1994-12-16$255.00$255.003,520
1994-12-15$245.00$245.00200
1994-12-14$245.00$245.009,790
1994-12-13$237.50$237.502,940
1994-12-12$230.00$230.001,110
1994-12-09$232.50$232.505,610
1994-12-08$237.50$237.508,710
1994-12-07$242.50$242.5015,420
1994-12-06$242.50$242.503,860
1994-12-05$235.00$235.004,050
1994-12-02$235.00$235.00230
1994-12-01$227.50$227.501,220
1994-11-30$228.75$228.755,570
1994-11-29$230.00$230.002,020
1994-11-28$220.83$220.83705
1994-11-25$223.33$223.3345
1994-11-23$221.67$221.675,010
1994-11-22$230.00$230.001,830
1994-11-21$226.67$226.672,415
1994-11-18$233.33$233.33360
1994-11-17$225.00$225.00240
1994-11-16$230.00$230.006,405
1994-11-15$221.67$221.672,955
1994-11-14$221.67$221.671,185
1994-11-11$233.33$233.331,830
1994-11-10$230.00$230.003,495
1994-11-09$221.67$221.67390
1994-11-08$221.67$221.67660
1994-11-07$231.67$231.67570
1994-11-04$226.67$226.671,680
1994-11-03$226.67$226.671,575
1994-11-02$225.00$225.003,330
1994-11-01$225.00$225.002,670
1994-10-31$225.00$225.003,075
1994-10-28$226.67$226.671,305
1994-10-27$230.00$230.009,330
1994-10-26$230.00$230.002,595
1994-10-25$231.67$231.673,660
1994-10-24$223.33$223.331,680
1994-10-21$223.33$223.336,660
1994-10-20$223.33$223.332,520
1994-10-19$231.67$231.67510
1994-10-18$223.33$223.335,670
1994-10-17$226.67$226.6714,775
1994-10-14$223.33$223.336,375
1994-10-13$221.67$221.6710,875
1994-10-12$213.75$213.753,900
1994-10-11$216.67$216.676,255
1994-10-10$213.33$213.333,705
1994-10-07$206.67$206.676,045
1994-10-06$205.00$205.002,460
1994-10-05$205.00$205.001,530
1994-10-04$205.00$205.00555
1994-10-03$206.67$206.67675
1994-09-30$215.00$215.0024,105
1994-09-29$196.67$196.6718,765
1994-09-28$196.67$196.6730
1994-09-27$196.67$196.67465
1994-09-26$196.67$196.67510
1994-09-23$196.67$196.674,095
1994-09-22$203.33$203.3390
1994-09-21$196.67$196.679,660
1994-09-20$197.50$197.503,120
1994-09-19$196.67$196.673,420
1994-09-16$197.50$197.5013,935
1994-09-15$203.33$203.331,455
1994-09-14$196.67$196.673,075
1994-09-13$197.08$197.08735
1994-09-12$198.33$198.332,025
1994-09-09$200.00$200.00705
1994-09-08$200.00$200.00525
1994-09-07$206.67$206.672,280
1994-09-06$205.00$205.001,815
1994-09-02$213.33$213.332,415
1994-09-01$203.33$203.334,920
1994-08-31$203.33$203.334,170
1994-08-30$200.00$200.0014,685
1994-08-29$191.67$191.671,215
1994-08-26$195.00$195.002,685
1994-08-25$181.67$181.671,200
1994-08-24$181.67$181.672,430
1994-08-23$191.67$191.672,355
1994-08-22$186.67$186.67255
1994-08-19$191.67$191.67870
1994-08-18$188.33$188.3312,600
1994-08-17$173.33$173.3311,820
1994-08-16$165.00$165.005,640
1994-08-15$170.00$170.001,080
1994-08-12$175.00$175.00375
1994-08-11$175.00$175.004,605
1994-08-10$170.00$170.001,125
1994-08-09$173.33$173.332,475
1994-08-08$166.67$166.671,635
1994-08-05$175.00$175.00705
1994-08-04$171.67$171.672,955
1994-08-03$166.67$166.671,440
1994-08-02$168.33$168.331,740
1994-08-01$173.33$173.33510
1994-07-29$180.00$180.00750
1994-07-28$173.33$173.33780
1994-07-27$175.00$175.00405
1994-07-26$175.00$175.001,875
1994-07-25$178.75$178.75210
1994-07-22$188.33$188.33855
1994-07-21$181.67$181.67495
1994-07-20$180.00$180.001,395
1994-07-19$181.67$181.67420
1994-07-18$186.67$186.671,650
1994-07-15$183.33$183.331,395
1994-07-14$176.67$176.673,750
1994-07-13$176.67$176.67840
1994-07-12$173.33$173.3324,795
1994-07-11$170.00$170.00270
1994-07-08$173.33$173.332,220
1994-07-07$166.67$166.6724,375
1994-07-06$168.33$168.335,595
1994-07-05$163.33$163.331,395
1994-07-01$173.33$173.333,990
1994-06-30$173.33$173.332,865
1994-06-29$170.00$170.00870
1994-06-28$176.67$176.671,350
1994-06-27$176.67$176.673,075
1994-06-24$173.33$173.334,350
1994-06-23$173.33$173.334,290
1994-06-22$191.67$191.671,845
1994-06-21$193.33$193.339,870
1994-06-20$200.00$200.00510
1994-06-17$206.67$206.678,295
1994-06-16$194.17$194.177,485
1994-06-15$194.17$194.1711,880
1994-06-14$193.33$193.331,245
1994-06-13$203.33$203.332,010
1994-06-10$196.67$196.67870
1994-06-09$203.33$203.33315
1994-06-08$203.33$203.33180
1994-06-07$203.33$203.331,455
1994-06-06$193.33$193.33360
1994-06-03$200.00$200.00960
1994-06-02$203.33$203.334,110
1994-06-01$198.33$198.335,490
1994-05-31$203.33$203.33870
1994-05-27$200.00$200.002,685
1994-05-26$211.67$211.676,030
1994-05-25$210.00$210.00795
1994-05-24$215.00$215.005,850
1994-05-23$215.00$215.003,210
1994-05-20$213.33$213.333,270
1994-05-19$198.33$198.33540
1994-05-18$200.00$200.004,425
1994-05-17$200.00$200.003,000
1994-05-16$198.33$198.336,900
1994-05-13$198.33$198.3390
1994-05-12$198.33$198.331,800
1994-05-11$200.00$200.002,055
1994-05-10$211.67$211.673,000
1994-05-09$213.33$213.337,530
1994-05-06$221.67$221.675,625
1994-05-05$223.33$223.3312,330
1994-05-04$206.67$206.674,845
1994-05-03$201.67$201.673,945
1994-05-02$203.33$203.335,685
1994-04-29$200.00$200.001,440
1994-04-28$190.00$190.0010,125
1994-04-26$179.17$179.174,470
1994-04-25$181.67$181.674,680
1994-04-22$183.33$183.333,345
1994-04-21$186.67$186.673,525
1994-04-20$186.67$186.675,460
1994-04-19$191.67$191.676,615
1994-04-18$205.00$205.005,985
1994-04-15$211.67$211.673,690
1994-04-14$213.33$213.33960
1994-04-13$220.00$220.002,460
1994-04-12$215.00$215.003,075
1994-04-11$219.17$219.172,595
1994-04-08$220.00$220.001,050
1994-04-07$226.67$226.67900
1994-04-06$226.67$226.673,915
1994-04-05$226.67$226.674,365
1994-04-04$226.67$226.675,880
1994-03-31$231.67$231.674,590
1994-03-30$225.00$225.004,920
1994-03-29$238.33$238.333,960
1994-03-28$240.00$240.001,185
1994-03-25$241.67$241.671,335
1994-03-24$241.67$241.675,970
1994-03-23$240.00$240.004,050
1994-03-22$238.33$238.333,960
1994-03-21$248.33$248.339,345
1994-03-18$251.67$251.6710,665
1994-03-17$260.00$260.009,705
1994-03-16$246.67$246.6715,960
1994-03-15$233.33$233.3314,880
1994-03-14$220.00$220.0010,770
1994-03-11$210.00$210.0020,790
1994-03-10$211.67$211.671,275
1994-03-09$211.67$211.672,700
1994-03-08$213.33$213.3327,405
1994-03-07$201.67$201.6716,320
1994-03-04$205.00$205.00315
1994-03-03$205.00$205.00930
1994-03-02$205.00$205.0015,675
1994-03-01$205.00$205.005,430
1994-02-28$205.00$205.001,350
1994-02-25$205.00$205.0014,745
1994-02-24$205.00$205.0044,910
1994-02-23$201.67$201.679,585
1994-02-22$206.67$206.6737,035
1994-02-18$206.67$206.6710,095
1994-02-17$195.00$195.0085,485
1994-02-16$199.17$199.172,970
1994-02-15$203.33$203.332,970
1994-02-14$208.33$208.33855
1994-02-11$203.33$203.33720
1994-02-10$210.00$210.001,065
1994-02-09$210.00$210.002,025
1994-02-08$200.00$200.002,850
1994-02-07$210.00$210.005,580
1994-02-04$213.33$213.332,100
1994-02-03$221.67$221.671,740
1994-02-02$216.67$216.673,045
1994-02-01$216.67$216.671,410
1994-01-31$213.33$213.334,305
1994-01-28$210.00$210.001,320
1994-01-27$208.33$208.331,875
1994-01-26$201.67$201.6710,665
1994-01-25$210.00$210.001,740
1994-01-24$215.00$215.00990
1994-01-21$223.33$223.331,980
1994-01-20$223.33$223.331,500
1994-01-19$216.67$216.672,475
1994-01-18$228.33$228.33615
1994-01-17$228.33$228.33600
1994-01-14$228.33$228.3330,390
1994-01-13$226.67$226.673,165
1994-01-12$240.00$240.00570
1994-01-11$229.17$229.171,305
1994-01-10$226.67$226.67555
1994-01-07$238.33$238.33510
1994-01-06$238.33$238.33480
1994-01-05$240.00$240.0023,175
1994-01-04$240.00$240.003,480
1994-01-03$240.00$240.001,845