0001950047-26-005556.txt : 20260603 0001950047-26-005556.hdr.sgml : 20260603 20260603162055 ACCESSION NUMBER: 0001950047-26-005556 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20260603 DATE AS OF CHANGE: 20260603 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: AMERICAN SUPERCONDUCTOR CORP /DE/ CENTRAL INDEX KEY: 0000880807 STANDARD INDUSTRIAL CLASSIFICATION: MOTORS & GENERATORS [3621] ORGANIZATION NAME: 04 Manufacturing EIN: 042959321 STATE OF INCORPORATION: DE FISCAL YEAR END: 0331 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-19672 FILM NUMBER: 261060934 BUSINESS ADDRESS: STREET 1: SIXTY FOUR JACKSON ROAD CITY: DEVENS STATE: MA ZIP: 01434 BUSINESS PHONE: 9788423000 MAIL ADDRESS: STREET 1: SIXTY FOUR JACKSON ROAD CITY: DEVENS STATE: MA ZIP: 01434 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Kosiba John W JR CENTRAL INDEX KEY: 0001703463 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O AMERICAN SUPERCONDUCTOR CORPORATION STREET 2: 64 JACKSON ROAD CITY: DEVENS STATE: MA ZIP: 01434 144 1 primary_doc.xml 144 0001703463 XXXXXXXX LIVE 0000880807 AMERICAN SUPERCONDUCTOR CORPORATION 000-19672 114 East Main Street Ayer MA 01432 (978) 842-3000 JOHN KOSIBA Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

6447 315547.77 47694445 06/03/2026 NASDAQ Common 06/02/2026 Restricted Stock ISSUER N 6447 06/02/2026 Not Applicable N JOHN KOSIBA

114 East Main Street Ayer MA 01432

Common 06/02/2026 30462 1546485.68 06/03/2026 08/15/2025 /s/ John William Kosiba