Trade Summary

5 days ago, Dambier Laura A., serving as Dir at AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC), sold 4,000 shares at $37.63 per share, for a total transaction value of $150,520.00. Following this transaction, Dambier Laura A. now holds 14,992 shares of AMSC.

This sale represents a 21.06% decrease in Dambier Laura A.'s stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Thursday, June 11, 2026 and publicly disclosed via SEC Form 4 filing on Friday, June 12, 2026 at 4:11 PM ET, 1 day after the trade was made.

AMERICAN SUPERCONDUCTOR CORP /DE/ operates in the INDUSTRIALS sector, specifically within the SPECIALTY INDUSTRIAL MACHINERY industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.