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AI brief of an SEC Form 8-K · AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC)

AMSC director Barbara G. Littlefield resigns from board effective September 18, 2026

Neutral Impact 2 of 5 leadership Written later

American Superconductor Corporation (AMSC) disclosed that director Barbara G. Littlefield resigned from its Board of Directors, with the resignation effective at 12 p.m. Eastern time on Friday, September 18, 2026. She informed the Board of her decision on September 17, 2026. The filing does not give a reason for the resignation or name a replacement.

Key points

  • Barbara G. Littlefield resigned from the Board of Directors of American Superconductor Corporation.
  • She informed the Board of her resignation on September 17, 2026.
  • Resignation effective at 12 p.m. Eastern time on Friday, September 18, 2026.
  • The filing does not state a reason for the resignation or name a successor.

The filing

CompanyAMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC)
Form8-K, current report
Filed with the SECSep 21, 2026, 4:07 PM ET
Accession number0001437749-26-030822

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 8:29 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on September 21, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.