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Mailing Address SIXTY FOUR JACKSON ROAD DEVENS MA 01434
Business Address SIXTY FOUR JACKSON ROAD DEVENS MA 01434 9788423000
AMERICAN SUPERCONDUCTOR CORP /DE/ CIK#: 0000880807 (see all company filings)

SIC: 3621 - MOTORS & GENERATORS
State location: MA | State of Inc.: DE | Fiscal Year End: 0331
(CF Office: 04 Manufacturing)
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Items 1 - 40  0000880807 Filings RSS Feed
Filings Format Description Filed/Effective File/Film Number
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-24-000669 (33 Act)  Size: 1 KB
2024-03-15 16:30:00 333-276766
24756797
S-3/A  Documents [Amend] Registration statement under Securities Act of 1933
Acc-no: 0001193125-24-063702 (33 Act)  Size: 68 KB
2024-03-08 333-276766
24734990
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001535264-24-000022 (34 Act)  Size: 9 KB
2024-02-14 005-41994
24636314
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-24-021029 (33 Act)  Size: 444 KB
2024-01-31 333-253611
24583668
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-24-020938 (34 Act)  Size: 433 KB
2024-01-31 000-19672
24583179
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-24-019438 (33 Act)  Size: 443 KB
2024-01-30 333-253611
24578492
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0001193125-24-019425 (33 Act)  Size: 686 KB
2024-01-30 333-276766
24578376
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000906304-24-000048 (34 Act)  Size: 10 KB
2024-01-30 005-41994
24577050
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001088875-24-000058 (34 Act)  Size: 11 KB
2024-01-30 005-41994
24575806
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001437749-24-002041 (34 Act)  Size: 7 MB
2024-01-24 000-19672
24556487
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001437749-24-002040 (34 Act)  Size: 471 KB
2024-01-24 000-19672
24556466
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001437749-23-029753 (34 Act)  Size: 7 MB
2023-11-01 000-19672
231368346
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001437749-23-029749 (34 Act)  Size: 469 KB
2023-11-01 000-19672
231368268
8-K  Documents   Interactive Data Current report, item 5.07
Acc-no: 0001437749-23-023329 (34 Act)  Size: 174 KB
2023-08-11 000-19672
231164222
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001437749-23-022793 (34 Act)  Size: 6 MB
2023-08-09 000-19672
231155234
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001437749-23-022786 (34 Act)  Size: 419 KB
2023-08-09 000-19672
231155164
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001088875-23-000092 (34 Act)  Size: 10 KB
2023-07-05 005-41994
231066770
ARS  Documents Annual Report to Security Holders
Acc-no: 0001193125-23-177521 (34 Act)  Size: 1 MB
2023-06-28 000-19672
231052312
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-23-177515 (34 Act)  Size: 134 KB
2023-06-28 000-19672
231052293
DEF 14A  Documents Other definitive proxy statements
Acc-no: 0001193125-23-177510 (34 Act)  Size: 1 MB
2023-06-28 000-19672
231052274
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0001193125-23-171201 (34 Act)  Size: 160 KB
2023-06-21 000-19672
231030293
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001437749-23-016265 (34 Act)  Size: 10 MB
2023-05-31 000-19672
23981121
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001437749-23-016264 (34 Act)  Size: 494 KB
2023-05-31 000-19672
23981110
SD  Documents Specialized disclosure report
Acc-no: 0001437749-23-016150 (34 Act)  Size: 4 MB
2023-05-31 000-19672
23978183
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001535264-23-000010 (34 Act)  Size: 9 KB
2023-02-14 005-41994
23624365
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000914208-23-000148 (34 Act)  Size: 17 KB
2023-02-08 005-41994
23596545
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001437749-23-002270 (34 Act)  Size: 8 MB
2023-02-01 000-19672
23577658
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001437749-23-002268 (34 Act)  Size: 476 KB
2023-02-01 000-19672
23577643
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000906304-23-000063 (34 Act)  Size: 10 KB
2023-01-31 005-41994
23570750
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001088875-23-000021 (34 Act)  Size: 11 KB
2023-01-19 005-41994
23536606
S-8 POS  Documents Securities to be offered to employees in employee benefit plans, post-effective amendments
Acc-no: 0001193125-22-287778 (33 Act)  Size: 82 KB
2022-11-17 333-233531
221399290
S-8 POS  Documents Securities to be offered to employees in employee benefit plans, post-effective amendments
Acc-no: 0001193125-22-287772 (33 Act)  Size: 82 KB
2022-11-17 333-213850
221399285
S-8 POS  Documents Securities to be offered to employees in employee benefit plans, post-effective amendments
Acc-no: 0001193125-22-287767 (33 Act)  Size: 82 KB
2022-11-17 333-197971
221399276
S-8 POS  Documents Securities to be offered to employees in employee benefit plans, post-effective amendments
Acc-no: 0001193125-22-287752 (33 Act)  Size: 82 KB
2022-11-17 333-183075
221399218
S-8 POS  Documents Securities to be offered to employees in employee benefit plans, post-effective amendments
Acc-no: 0001193125-22-287748 (33 Act)  Size: 82 KB
2022-11-17 333-170286
221399212
S-8 POS  Documents Securities to be offered to employees in employee benefit plans, post-effective amendments
Acc-no: 0001193125-22-287744 (33 Act)  Size: 82 KB
2022-11-17 333-145685
221399207
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001437749-22-025367 (34 Act)  Size: 8 MB
2022-11-01 000-19672
221350274
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001437749-22-025365 (34 Act)  Size: 473 KB
2022-11-01 000-19672
221350254
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001193125-22-216468 (33 Act)  Size: 64 KB
2022-08-10 333-266728
221150092
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001193125-22-216467 (33 Act)  Size: 93 KB
2022-08-10 333-266727
221150089