Skip to main content
AMERICAN SUPERCONDUCTOR CORP /DE/ logo

AMERICAN SUPERCONDUCTOR CORP /DE/ — Investor Relations & Filings

Ticker · AMSC ISIN · US0301112076 LEI · 549300S9YT8Z8LOK4452 US Manufacturing
Filings indexed 1,007 across all filing types
Latest filing 2026-02-26 Director's Dealing
Country US United States of America
Listing US AMSC

About AMERICAN SUPERCONDUCTOR CORP /DE/

https://www.amsc.com/

American Superconductor Corporation (AMSC) is an energy technology company that provides megawatt-scale power resiliency solutions. The company's offerings are organized into two primary segments: Gridtec and Windtec. The Gridtec segment delivers advanced grid systems that enhance the performance, reliability, and capacity of power networks. Key products include D-VAR® dynamic reactive compensation and PQ-IVR® voltage restoration systems, which manage voltage, improve power quality, and facilitate the integration of renewable energy. The Windtec segment provides electronic controls, systems, and engineering services for the wind energy market, including proprietary wind turbine designs, power electronics, and control software. AMSC also designs and manufactures high-temperature superconductor (HTS) wires and related power systems.

Recent filings

Filing Released Lang Actions
4 - AMERICAN SUPERCONDUCTOR CORP /DE/ (0000880807) (Filer)
Director's Dealing
2026-02-26 English
10-Q - AMERICAN SUPERCONDUCTOR CORP /DE/ (0000880807) (Filer)
Interim / Quarterly Report Q3 2026
2026-02-04 English
8-K Filing
Regulatory Filings
2026-02-04 English
SCHEDULE 13G/A Filing
Major Shareholding Notification
2026-01-30 English
424B7 Filing
Prospectus
2025-12-23 English
8-K Filing
Regulatory Filings
2025-12-23 English

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.