American Superconductor Corp Director Barbara Littlefield Resigns

What Happened
American Superconductor Corporation (AMSC) filed an 8-K (Item 5.02) reporting that director Barbara G. Littlefield informed the Board on September 17, 2026 that she would resign from the Board, effective at 12:00 p.m. Eastern Time on Friday, September 18, 2026. The Form 8‑K was filed on September 21, 2026.

Key Details

• Filing: Form 8‑K under Item 5.02 (Departure of Directors or Certain Officers).
• Resignation notice given: September 17, 2026.
• Effective date/time of resignation: September 18, 2026 at 12:00 p.m. ET.
• The 8‑K does not state a reason for the resignation or identify a successor.

Why It Matters
A director resignation changes the company’s board membership and is a governance event investors monitor. This filing provides the timing of the departure but no reason or replacement; investors should watch for any future announcements about a successor or changes to board composition.