American Superconductor director Littlefield resigns
American Superconductor Corporation (AMSC) reported that director Barbara G. Littlefield informed the Board of Directors on September 17, 2026 of her resignation from the Board.
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Form Type
8-K
Rhea-AI Filing Summary
American Superconductor Corporation (AMSC) reported that director Barbara G. Littlefield informed the Board of Directors on September 17, 2026 of her resignation from the Board. Her resignation is effective at 12 p.m. eastern time on September 18, 2026.
8-K Event Classification
Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers
1 item
Item 5.02
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers
Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Key Figures
Resignation notice date: September 17, 2026
Resignation effective time: 12 p.m. eastern time
Resignation effective date: September 18, 2026
+1 more
4 metrics
Resignation notice date
September 17, 2026
Date Barbara G. Littlefield informed the Board of her resignation
Resignation effective time
12 p.m. eastern time
Effective time of Barbara G. Littlefield’s resignation on September 18, 2026
Resignation effective date
September 18, 2026
Effective date of Barbara G. Littlefield’s resignation from the Board
Par value per share
$0.01 per share
Par value of AMSC common stock listed on Nasdaq Global Select Market
Key Terms
Nasdaq Global Select Market, Section 12(b) of the Act, Emerging growth company, Pre-commencement communications
4 terms
Nasdaq Global Select Market market
"Common Stock , $0.01 par value per share | | AMSC | | Nasdaq Global Select Market"
A Nasdaq Global Select Market listing is the highest tier of stocks on the Nasdaq exchange, reserved for companies that meet the strictest financial, reporting and governance standards. For investors, it acts like a premium quality label—signaling larger, more transparent and better-governed companies that tend to offer greater liquidity and lower perceived risk compared with lower-tier listings, making it easier to buy, sell and evaluate shares.
Section 12(b) of the Act regulatory
"Securities registered pursuant to Section 12(b) of the Act"
Emerging growth company regulatory
"Emerging growth company"
An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.
Pre-commencement communications regulatory
"Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did AMSC disclose in the September 2026 Form 8-K?
AMSC disclosed that director Barbara G. Littlefield informed the Board of her resignation on September 17, 2026, with the resignation effective at 12 p.m. eastern time on September 18, 2026.
When is Barbara G. Littlefield’s resignation from AMSC’s board effective?
Her resignation from AMSC’s Board of Directors is effective at 12 p.m. eastern time on Friday, September 18, 2026.
What is the role of American Superconductor Corporation’s signatory on this 8-K?
The Form 8-K is signed on behalf of American Superconductor Corporation by John W. Kosiba, Jr., who is identified as Senior Vice President and Chief Financial Officer.
On which market is AMSC’s common stock listed?
AMSC’s common stock, par value $0.01 per share, is listed on the Nasdaq Global Select Market under the trading symbol AMSC.
What class of securities does AMSC have registered under Section 12(b)?
AMSC has its common stock, $0.01 par value per share, registered under Section 12(b) of the Securities Exchange Act of 1934 and listed on the Nasdaq Global Select Market.
AI-generated analysis. How Rhea-AI works. Not financial advice.
