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 — 1995

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1995-12-29$145.00$145.006,650
1995-12-28$145.00$145.0013,280
1995-12-27$147.50$147.503,690
1995-12-26$133.75$133.7517,010
1995-12-22$150.00$150.0010,560
1995-12-21$140.00$140.0010,780
1995-12-20$127.50$127.503,070
1995-12-19$130.00$130.00840
1995-12-18$127.50$127.504,960
1995-12-15$123.75$123.757,620
1995-12-14$127.50$127.5010,680
1995-12-13$113.75$113.7549,400
1995-12-12$113.75$113.751,200
1995-12-11$115.00$115.0013,200
1995-12-08$120.00$120.002,280
1995-12-07$118.75$118.751,130
1995-12-06$107.50$107.5013,320
1995-12-05$110.00$110.002,770
1995-12-04$120.00$120.001,300
1995-12-01$115.00$115.006,630
1995-11-30$122.50$122.502,010
1995-11-29$122.50$122.50830
1995-11-28$127.50$127.502,030
1995-11-27$127.50$127.504,160
1995-11-24$120.00$120.003,970
1995-11-22$120.00$120.00340
1995-11-21$120.00$120.002,130
1995-11-20$120.00$120.002,800
1995-11-17$122.50$122.50410
1995-11-16$122.50$122.501,100
1995-11-15$122.50$122.501,410
1995-11-14$120.00$120.00830
1995-11-13$130.00$130.0024,980
1995-11-10$132.50$132.504,180
1995-11-09$121.25$121.2542,400
1995-11-08$110.00$110.002,720
1995-11-07$112.50$112.501,730
1995-11-06$111.25$111.252,180
1995-11-03$110.00$110.0019,730
1995-11-02$106.25$106.2511,490
1995-11-01$105.00$105.00550
1995-10-31$105.00$105.003,780
1995-10-30$115.00$115.00400
1995-10-27$115.00$115.006,840
1995-10-26$108.75$108.7520,810
1995-10-25$107.50$107.501,610
1995-10-24$112.50$112.5014,510
1995-10-23$115.00$115.00540
1995-10-20$115.00$115.003,160
1995-10-19$120.00$120.00990
1995-10-18$120.00$120.002,220
1995-10-17$122.50$122.509,590
1995-10-16$110.00$110.008,080
1995-10-13$125.00$125.006,830
1995-10-12$117.50$117.501,020
1995-10-11$127.50$127.50380
1995-10-10$117.50$117.501,780
1995-10-09$127.50$127.50840
1995-10-06$127.50$127.502,230
1995-10-05$120.00$120.001,960
1995-10-04$122.50$122.504,150
1995-10-03$127.50$127.501,590
1995-10-02$132.50$132.50560
1995-09-29$132.50$132.50480
1995-09-28$135.00$135.002,050
1995-09-27$130.00$130.001,740
1995-09-26$137.50$137.502,460
1995-09-25$137.50$137.504,150
1995-09-22$137.50$137.501,630
1995-09-21$135.00$135.005,100
1995-09-20$137.50$137.502,850
1995-09-19$137.50$137.506,150
1995-09-18$137.50$137.5028,370
1995-09-15$142.50$142.5059,950
1995-09-14$130.00$130.003,530
1995-09-13$130.00$130.0014,250
1995-09-12$130.00$130.002,350
1995-09-11$120.00$120.001,000
1995-09-08$127.50$127.501,340
1995-09-07$125.00$125.003,820
1995-09-06$122.50$122.50720
1995-09-05$127.50$127.50180
1995-09-01$125.00$125.002,090
1995-08-31$132.50$132.50550
1995-08-30$127.50$127.503,050
1995-08-29$127.50$127.501,450
1995-08-28$127.50$127.504,240
1995-08-25$129.38$129.38910
1995-08-24$130.00$130.003,720
1995-08-23$135.00$135.001,290
1995-08-22$127.50$127.501,380
1995-08-21$135.00$135.001,020
1995-08-18$127.50$127.50390
1995-08-17$130.00$130.00100
1995-08-16$135.00$135.003,270
1995-08-15$127.50$127.50140
1995-08-14$135.00$135.00870
1995-08-11$135.00$135.00340
1995-08-10$127.50$127.50550
1995-08-09$130.00$130.001,490
1995-08-08$127.50$127.50850
1995-08-07$133.75$133.75400
1995-08-04$135.00$135.00210
1995-08-03$130.00$130.00710
1995-08-02$130.00$130.00620
1995-08-01$135.00$135.002,240
1995-07-31$135.00$135.00330
1995-07-28$135.00$135.001,700
1995-07-27$135.00$135.008,440
1995-07-26$135.00$135.002,540
1995-07-25$122.50$122.501,800
1995-07-24$120.00$120.00730
1995-07-21$125.00$125.00930
1995-07-20$125.00$125.002,580
1995-07-19$130.00$130.002,970
1995-07-18$135.00$135.00260
1995-07-17$135.00$135.0011,080
1995-07-14$142.50$142.50590
1995-07-13$142.50$142.50900
1995-07-12$135.00$135.001,370
1995-07-11$140.00$140.00920
1995-07-10$142.50$142.50960
1995-07-07$138.75$138.751,680
1995-07-06$132.50$132.50520
1995-07-05$140.00$140.00160
1995-07-03$135.00$135.0030
1995-06-30$142.50$142.50800
1995-06-29$132.50$132.503,360
1995-06-28$136.25$136.25590
1995-06-27$132.50$132.503,040
1995-06-26$142.50$142.50170
1995-06-23$132.50$132.502,000
1995-06-22$142.50$142.502,970
1995-06-21$142.50$142.501,060
1995-06-20$132.50$132.50810
1995-06-19$142.50$142.502,210
1995-06-16$137.50$137.5023,460
1995-06-15$137.50$137.506,610
1995-06-14$130.00$130.001,520
1995-06-13$135.00$135.00590
1995-06-12$135.00$135.004,920
1995-06-09$140.00$140.001,090
1995-06-08$137.50$137.501,770
1995-06-07$142.50$142.503,490
1995-06-06$147.50$147.50940
1995-06-05$140.00$140.001,870
1995-06-02$142.50$142.503,520
1995-06-01$145.00$145.001,760
1995-05-31$152.50$152.50990
1995-05-30$150.00$150.002,140
1995-05-26$150.63$150.63750
1995-05-25$157.50$157.5090
1995-05-24$150.00$150.001,350
1995-05-23$150.00$150.002,190
1995-05-22$155.00$155.006,630
1995-05-19$155.00$155.003,670
1995-05-18$150.00$150.0034,690
1995-05-17$157.50$157.503,300
1995-05-16$150.00$150.004,060
1995-05-15$155.00$155.00950
1995-05-12$156.25$156.251,560
1995-05-11$160.00$160.001,410
1995-05-10$162.50$162.50930
1995-05-09$152.50$152.502,150
1995-05-08$160.00$160.003,040
1995-05-05$182.50$182.50520
1995-05-04$177.50$177.50290
1995-05-03$177.50$177.502,110
1995-05-02$180.00$180.002,820
1995-05-01$170.00$170.0011,370
1995-04-28$165.00$165.00320
1995-04-27$172.50$172.50480
1995-04-26$170.00$170.00160
1995-04-25$167.50$167.50240
1995-04-24$165.00$165.001,450
1995-04-21$165.00$165.001,780
1995-04-20$172.50$172.504,550
1995-04-19$172.50$172.5011,470
1995-04-18$185.00$185.00350
1995-04-17$185.00$185.001,320
1995-04-13$192.50$192.5020
1995-04-12$192.50$192.50170
1995-04-11$185.00$185.001,470
1995-04-10$192.50$192.50420
1995-04-07$192.50$192.505,920
1995-04-06$180.00$180.0022,170
1995-04-05$183.75$183.751,260
1995-04-04$185.00$185.001,640
1995-04-03$182.50$182.501,710
1995-03-31$197.50$197.502,190
1995-03-30$192.50$192.501,200
1995-03-29$197.50$197.504,230
1995-03-28$190.00$190.001,110
1995-03-27$192.50$192.50540
1995-03-24$195.00$195.003,430
1995-03-23$182.50$182.502,580
1995-03-22$187.50$187.5032,880
1995-03-21$182.50$182.501,970
1995-03-20$177.50$177.501,950
1995-03-17$182.50$182.501,520
1995-03-16$187.50$187.501,550
1995-03-15$187.50$187.501,320
1995-03-14$190.00$190.00550
1995-03-13$182.50$182.50740
1995-03-10$185.00$185.004,200
1995-03-09$183.75$183.7570
1995-03-08$185.00$185.002,030
1995-03-07$187.50$187.50160
1995-03-06$187.50$187.504,320
1995-03-03$195.00$195.00350
1995-03-02$195.00$195.00450
1995-03-01$195.00$195.001,360
1995-02-28$210.00$210.002,000
1995-02-27$207.50$207.50490
1995-02-24$220.00$220.00360
1995-02-23$207.50$207.5044,930
1995-02-22$205.00$205.0050
1995-02-21$205.00$205.00160
1995-02-17$212.50$212.50310
1995-02-16$217.50$217.501,510
1995-02-15$220.00$220.00860
1995-02-14$212.50$212.50270
1995-02-13$205.00$205.003,950
1995-02-10$210.00$210.003,300
1995-02-09$195.00$195.003,700
1995-02-08$202.50$202.506,490
1995-02-07$190.00$190.003,990
1995-02-06$200.00$200.00340
1995-02-03$195.00$195.003,580
1995-02-02$202.50$202.50720
1995-02-01$197.50$197.50800
1995-01-31$205.00$205.003,000
1995-01-30$201.25$201.251,980
1995-01-27$217.50$217.502,400
1995-01-26$220.00$220.001,440
1995-01-25$225.00$225.001,090
1995-01-24$240.00$240.0070
1995-01-23$232.50$232.50510
1995-01-20$232.50$232.501,130
1995-01-19$232.50$232.5090
1995-01-18$238.75$238.751,830
1995-01-17$245.00$245.00310
1995-01-16$232.50$232.50580
1995-01-13$232.50$232.50830
1995-01-12$240.00$240.002,730
1995-01-11$232.50$232.502,770
1995-01-10$232.50$232.501,400
1995-01-09$247.50$247.50250
1995-01-06$247.50$247.50150
1995-01-05$240.00$240.00280
1995-01-04$240.00$240.0080
1995-01-03$240.00$240.00160