57 filings
EFFECT
AMSC
American Superconductor Corp.
18 Mar 24
Notice of effectiveness
12:15am
SD
AMSC
American Superconductor Corp.
31 May 23
Conflict minerals disclosure
12:00am
SD
AMSC
American Superconductor Corp.
23 May 22
Conflict minerals disclosure
4:10pm
EFFECT
AMSC
American Superconductor Corp.
22 Jun 21
Notice of effectiveness
12:15am
SD
AMSC
American Superconductor Corp.
27 May 21
Conflict minerals disclosure
4:11pm
SD
w3nrr3f6phl b9wjva0
26 May 20
Conflict minerals disclosure
4:18pm
SD
eibq6ucutcx29akc
30 May 19
Conflict minerals disclosure
4:15pm
CT ORDER
eigshplrmn552bo9vg6
30 May 19
Confidential treatment order
10:21am
CT ORDER
fj1i3sepqvc9
13 Feb 19
Confidential treatment order
1:09pm
CT ORDER
a2cqmn
30 Aug 18
Confidential treatment order
12:00am
CT ORDER
cp8ijmjpj5xkjbws3zg
10 Aug 18
Confidential treatment order
10:11am
CT ORDER
3v4ldn9q7 jkk0bdac
10 Aug 18
Confidential treatment order
12:00am
CT ORDER
pcq0y9l5
13 Jul 18
Confidential treatment order
9:58am
SD
f5j tunb23x
25 May 18
Conflict minerals disclosure
2:43pm
EFFECT
kdzbq jw1
15 Feb 18
Notice of effectiveness
12:00am
CORRESP
ohdh39dx zaty62fh9
13 Feb 18
Correspondence with SEC
12:00am
UPLOAD
n9d vdt3s
13 Feb 18
Letter from SEC
12:00am
EFFECT
k5m4tnio4p45t 0c
23 Oct 17
Notice of effectiveness
12:00am
CORRESP
vhi2h0l2
17 Oct 17
Correspondence with SEC
12:00am
UPLOAD
59rq3qnewkwt
11 Oct 17
Letter from SEC
12:00am