---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-004349"
form_type: "8-K/A"
ticker: "AMSC"
cik: "0000880807"
company_name: "AMERICAN SUPERCONDUCTOR CORP /DE/"
filed_at: "2026-02-17T23:59:59+00:00"
generated_at: "2026-05-16T02:40:03.198702+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "medium"
source: SEC EDGAR
---

# AMSC completes Comtrafo acquisition; Comtrafo 2024 revenue R$365M, net profit R$63.6M

## Summary
- Acquisition of all Comtrafo shares closed Dec 5, 2025; real estate assets also purchased.
- Comtrafo audited 2024: revenue R$365.1M (~$60M), net profit R$63.6M, total assets R$493.4M.
- Auditor KPMG issued qualified opinion due to missing comparative figures per IAS 1.
- AMSC filed unaudited pro forma combined financials for periods ended Dec 31, 2025 and Mar 31, 2025.
- Comtrafo manufactures electrical transformers; subsidiaries include Eletrotrafo (60% owned).

## SEC filing metadata
- accession: 0001437749-26-004349
- form_type: 8-K/A
- ticker: AMSC
- cik: 0000880807
- company_name: AMERICAN SUPERCONDUCTOR CORP /DE/
- filed_at: 2026-02-17T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: medium
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/880807/000143774926004349/0001437749-26-004349-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/880807/000143774926004349/amsc20260217_8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-004349
- JSON: https://secwatch.observer/filing/0001437749-26-004349.json
- Plain text: https://secwatch.observer/filing/0001437749-26-004349.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.