---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-139243"
form_type: "8-K"
ticker: "AMSC"
cik: "0000880807"
company_name: "AMERICAN SUPERCONDUCTOR CORP /DE/"
filed_at: "2025-06-11T23:59:59+00:00"
generated_at: "2026-05-19T14:46:43.207735+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# AMSC prices public offering of 4.125M shares at $28, expects net proceeds of $108.2M

## Summary
- Offering of 4,125,000 shares of common stock at $28.00 per share.
- Net proceeds expected ~$108.2M after underwriting discounts and offering expenses.
- Proceeds for working capital, general corporate purposes, and potential strategic acquisitions.
- Closing expected June 12, 2025; underwriters granted 30-day option for up to 618,750 additional shares.
- Oppenheimer & Co. Inc. acts as representative of the underwriters.

## SEC filing metadata
- accession: 0001193125-25-139243
- form_type: 8-K
- ticker: AMSC
- cik: 0000880807
- company_name: AMERICAN SUPERCONDUCTOR CORP /DE/
- filed_at: 2025-06-11T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/880807/000119312525139243/0001193125-25-139243-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/880807/000119312525139243/d795155d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-139243
- JSON: https://secwatch.observer/filing/0001193125-25-139243.json
- Plain text: https://secwatch.observer/filing/0001193125-25-139243.txt

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