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
e4oohjx06ldfohu
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:03pm
S-8 POS
qwj34ifu4gs
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:02pm
S-8 POS
w0nxjjt6t
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:00pm
S-8 POS
av1pbgf 1xk
17 Nov 22
Registration of securities for employees (post-effective amendment)
4:59pm
S-8 POS
qeu8d ki3qo
17 Nov 22
Registration of securities for employees (post-effective amendment)
4:57pm
S-8
z2e0g mx429
10 Aug 22
Registration of securities for employees
12:00am
S-8
8kr vctorku39
10 Aug 22
Registration of securities for employees
12:00am
POS AM
m23v r0rsey
2 Jun 21
Prospectus update (post-effective amendment)
4:40pm
POSASR
f92ka i5n
2 Jun 21
Automatic shelf registration (post-effective amendment)
4:05pm
424B7
l37ci34vw
21 May 21
Prospectus with selling stockholder info
8:27am
S-3ASR
ua6wpse
26 Feb 21
Automatic shelf registration
4:25pm
424B5
eidpzdl5iomdb1gxd6
23 Oct 20
Prospectus supplement for primary offering
4:02pm
424B5
09ie1nyugi 0aoy
21 Oct 20
Prospectus supplement for primary offering
4:01pm
S-8
ikrng 43jak0egozmsd
29 Aug 19
Registration of securities for employees
4:57pm