92 filings
424B5
AMSC
American Superconductor Corp.
31 Jan 24
Prospectus supplement for primary offering
4:50pm
424B5
AMSC
American Superconductor Corp.
30 Jan 24
Prospectus supplement for primary offering
4:23pm
S-3
AMSC
American Superconductor Corp.
Shelf registration
30 Jan 24
4:16pm
S-8 POS
AMSC
American Superconductor Corp.
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:04pm
S-8 POS
gti83tx
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:03pm
S-8 POS
njonvqs8buj3m9xk
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:02pm
S-8 POS
2bqt 5f10
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:00pm
S-8 POS
6k3sumf zjh
17 Nov 22
Registration of securities for employees (post-effective amendment)
4:59pm
S-8 POS
0dz2ir19eo9fvhfrpnvh
17 Nov 22
Registration of securities for employees (post-effective amendment)
4:57pm
S-8
jatn21hls7bu00hw2u94
10 Aug 22
Registration of securities for employees
12:00am
S-8
kgbe78zr69p0p7v
10 Aug 22
Registration of securities for employees
12:00am
POS AM
axsco5uqq2
2 Jun 21
Prospectus update (post-effective amendment)
4:40pm
POSASR
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2 Jun 21
Automatic shelf registration (post-effective amendment)
4:05pm
424B7
u0pafzfg16iqbmzww
21 May 21
Prospectus with selling stockholder info
8:27am
S-3ASR
z99lzd759jbm54
26 Feb 21
Automatic shelf registration
4:25pm
424B5
7asxuox3rr zkca
23 Oct 20
Prospectus supplement for primary offering
4:02pm
424B5
798x40fequ w3kwf
21 Oct 20
Prospectus supplement for primary offering
4:01pm
S-8
ea6deasu
29 Aug 19
Registration of securities for employees
4:57pm