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
6n04j5tjjxkf1 kb2t
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:03pm
S-8 POS
dh7b99jco00jflxgtybl
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:02pm
S-8 POS
gz69vuva1aj2zyev5
17 Nov 22
Registration of securities for employees (post-effective amendment)
5:00pm
S-8 POS
v2an1g1 2p
17 Nov 22
Registration of securities for employees (post-effective amendment)
4:59pm
S-8 POS
n645kv1zll2dfsz4
17 Nov 22
Registration of securities for employees (post-effective amendment)
4:57pm
S-8
j24a33
10 Aug 22
Registration of securities for employees
12:00am
S-8
4dq9l
10 Aug 22
Registration of securities for employees
12:00am
POS AM
diy6p6s 8h
2 Jun 21
Prospectus update (post-effective amendment)
4:40pm
POSASR
u96tlv
2 Jun 21
Automatic shelf registration (post-effective amendment)
4:05pm
424B7
to7n8 htg5q29
21 May 21
Prospectus with selling stockholder info
8:27am
S-3ASR
z1wj45 f9y
26 Feb 21
Automatic shelf registration
4:25pm
424B5
wgu oy5143gqvbfi1e
23 Oct 20
Prospectus supplement for primary offering
4:02pm
424B5
766hqp jnpbe2xvi8j
21 Oct 20
Prospectus supplement for primary offering
4:01pm
S-8
ehzftft20gj
29 Aug 19
Registration of securities for employees
4:57pm