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John W. Kosiba Jr currently holds 352,890 shares of AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John W. Kosiba Jr has been a net seller of AMSC stock. They have purchased $184.1K and sold $7.1M worth of shares.
John W. Kosiba Jr's most recent insider trade was on Aug 4, 2025, when they sold 15,740 shares at $55.13 per share.
John W. Kosiba Jr serves as Executive at AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC). They have executed 59 insider transactions totaling $7.3M over their tenure at the company.
John W. Kosiba Jr holds the position of Executive at AMERICAN SUPERCONDUCTOR CORP /DE/, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 9 years and currently hold a stake valued at $0.
John W. Kosiba Jr has shown a selling trading pattern, with $184.1K in total purchases and $7.1M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by John W. Kosiba Jr was on Aug 4, 2025, when they sold $1.9M worth of AMSC shares. This transaction involved 34,260 shares at $54.34 per share.
John W. Kosiba Jr currently owns 352,890 shares of AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of John W. Kosiba Jr's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. John W. Kosiba Jr has 59 Form 4 filings on record as an insider at AMERICAN SUPERCONDUCTOR CORP /DE/.
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