
AMERICAN SUPERCONDUCTOR CORP /DE/ — Investor Relations & Filings
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) | 2026-02-26 | English | |
| 10-Q - AMERICAN SUPERCONDUCTOR CORP /DE/ (0000880807) (Filer) | 2026-02-04 | English | |
| 8-K Filing | 2026-02-04 | English | |
| SCHEDULE 13G/A Filing | 2026-01-30 | English | |
| 424B7 Filing | 2025-12-23 | English | |
| 8-K Filing | 2025-12-23 | English |
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
4 filings
| |||||
| 32882906 | 4 - AMERICAN SUPERCONDUCTOR CORP /DE/ (0000880807) (Filer) | 2026-02-26 | English | ||
| 32882907 | 10-Q - AMERICAN SUPERCONDUCTOR CORP /DE/ (0000880807) (Filer) | 2026-02-04 | English | ||
| 24705898 | 8-K Filing | 2026-02-04 | English | ||
| 24705885 | SCHEDULE 13G/A Filing | 2026-01-30 | English | ||
|
2025
11 filings
| |||||
| 24705911 | 424B7 Filing | 2025-12-23 | English | ||
| 24705883 | 8-K Filing | 2025-12-23 | English | ||
| 9869085 | 8-K | 2025-12-10 | English | ||
| 9869086 | 4 | 2025-11-13 | English | ||
| 9869092 | FORM 10-Q | 2025-11-05 | English | ||
| 9869087 | FORM 8-K | 2025-11-05 | English | ||
| 9869088 | Regulatory Filings 2025 | 2025-08-08 | English | ||
| 9869093 | 4 | 2025-08-08 | English | ||
| 9869094 | 4 | 2025-08-06 | English | ||
| 9869096 | 4 | 2025-08-06 | English | ||
| 9869095 | 4 | 2025-08-06 | English | ||
Market data
Market data not available
Price history
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AMERICAN SUPERCONDUCTOR CORP /DE/ via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/31453/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=31453 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=31453 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=31453 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 31453}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for AMERICAN SUPERCONDUCTOR CORP /DE/ (id: 31453)"
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