A director at American Superconductor reduced her stake by 21% in an open-market sale, citing tax planning as the reason.
American Superconductor Corp. (NASDAQ:AMSC) disclosed a $151,000 insider stock sale by director Laura A. Dambier on June 11, 2026. The transaction involved 4,000 shares sold at $37.63 per share, according to an SEC Form 4 filing.
Dambier’s direct ownership fell by 21%, leaving her with 14,992 shares. The sale was her first open-market transaction in at least two years, with prior activity limited to administrative events like restricted stock vesting. The filing attributed the sale to tax planning purposes.
The company, which provides grid and wind power solutions, continues to operate in a transforming sector. No immediate market reaction was reported following the disclosure.