Latest filings (excl ownership)
EFFECT
Notice of effectiveness
18 Mar 24
S-3/A
Shelf registration (amended)
8 Mar 24
424B5
Prospectus supplement for primary offering
31 Jan 24
8-K
Other Events
31 Jan 24
424B5
Prospectus supplement for primary offering
30 Jan 24
S-3
Shelf registration
30 Jan 24
10-Q
2023 Q3
Quarterly report
24 Jan 24
8-K
AMSC Reports Third Quarter Fiscal Year 2023 Financial Results and Provides Business Outlook
24 Jan 24
10-Q
2023 Q2
Quarterly report
1 Nov 23
8-K
AMSC Reports Second Quarter Fiscal Year 2023 Financial Results and Provides Business Outlook
1 Nov 23
8-K
Submission of Matters to a Vote of Security Holders
11 Aug 23
10-Q
2023 Q1
Quarterly report
9 Aug 23
8-K
AMSC Reports First Quarter Fiscal Year 2023 Financial Results and Provides Business Outlook
9 Aug 23
ARS
2022 FY
Annual report to shareholders
28 Jun 23
DEFA14A
Additional proxy soliciting materials
28 Jun 23
DEF 14A
Definitive proxy
28 Jun 23
8-K
Departure of Directors or Certain Officers
21 Jun 23
10-K
2022 FY
Annual report
31 May 23
8-K
AMSC Reports Fourth Quarter and Full Fiscal Year 2022 Financial Results and Provides Business Outlook
31 May 23
SD
Conflict minerals disclosure
31 May 23
10-Q
2022 Q3
Quarterly report
1 Feb 23
8-K
AMSC Reports Third Quarter Fiscal Year 2022 Financial Results and Provides Business Outlook
1 Feb 23
S-8 POS
Registration of securities for employees (post-effective amendment)
17 Nov 22
S-8 POS
Registration of securities for employees (post-effective amendment)
17 Nov 22
S-8 POS
Registration of securities for employees (post-effective amendment)
17 Nov 22
S-8 POS
Registration of securities for employees (post-effective amendment)
17 Nov 22
S-8 POS
Registration of securities for employees (post-effective amendment)
17 Nov 22
S-8 POS
Registration of securities for employees (post-effective amendment)
17 Nov 22
10-Q
2022 Q2
Quarterly report
1 Nov 22
8-K
AMSC Reports Second Quarter Fiscal Year 2022 Financial Results and Provides Business Outlook
1 Nov 22
S-8
Registration of securities for employees
10 Aug 22
S-8
Registration of securities for employees
10 Aug 22
8-K
Departure of Directors or Certain Officers
5 Aug 22
10-Q
2022 Q1
Quarterly report
3 Aug 22
8-K
AMSC Reports First Quarter Fiscal Year 2022 Financial Results and Provides Business Outlook
3 Aug 22
DEFA14A
Additional proxy soliciting materials
26 Jul 22
DEFA14A
Additional proxy soliciting materials
23 Jun 22
DEF 14A
Definitive proxy
23 Jun 22
8-K
Departure of Directors or Certain Officers
10 Jun 22
10-K
2022 FY
Annual report
1 Jun 22
Latest ownership filings
4
Laura A. Dambier
4 Apr 24
4
Arthur H House
4 Apr 24
4
Margaret D. Klein
4 Apr 24
4
Barbara G. Littlefield
4 Apr 24
4
DAVID R OLIVER JR
4 Apr 24
SC 13G/A
AWM Investment Company, Inc.
14 Feb 24
SC 13G/A
ROYCE & ASSOCIATES LP
30 Jan 24
SC 13G/A
BAILLIE GIFFORD & CO
30 Jan 24
SC 13G/A
BAILLIE GIFFORD & CO
5 Jul 23
4
Daniel P McGahn
23 Jun 23
4
John W Kosiba JR
23 Jun 23
144
Notice of proposed sale of securities
22 Jun 23
144
Notice of proposed sale of securities
22 Jun 23
144
Notice of proposed sale of securities
21 Jun 23
144
Notice of proposed sale of securities
21 Jun 23
4
John W Kosiba JR
20 Jun 23
4
Daniel P McGahn
20 Jun 23
4
Arthur H House
7 Apr 23
4
Margaret D. Klein
7 Apr 23
4
Laura A. Dambier
7 Apr 23
4
Barbara G. Littlefield
7 Apr 23
4
DAVID R OLIVER JR
7 Apr 23
SC 13G
AWM Investment Company, Inc.
14 Feb 23
SC 13G/A
Invesco Ltd.
8 Feb 23
SC 13G
ROYCE & ASSOCIATES LP
31 Jan 23
SC 13G/A
BAILLIE GIFFORD & CO
19 Jan 23
4
Daniel P McGahn
19 Dec 22
4
John W Kosiba JR
19 Dec 22
4
John W Kosiba JR
13 Dec 22
4
Daniel P McGahn
2 Nov 22
4
John W Kosiba JR
21 Oct 22
SC 13G
BlackRock Inc.
8 Jul 22
4
Laura A. Dambier
14 Jun 22
4
Margaret D. Klein
14 Jun 22
3
Margaret D. Klein
13 Jun 22
3
Laura A. Dambier
13 Jun 22
4
Daniel P McGahn
13 Jun 22
4
John W Kosiba JR
13 Jun 22
4
VIKRAM S BUDHRAJA
13 Jun 22
4
Daniel P McGahn
2 Jun 22