X0306 4 2019-11-05 0 0000880807 AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC 0001425153 McGahn Daniel P C/O AMERICAN SUPERCONDUCTOR CORPORATION 114 EAST MAIN ST AYER MA 01432 1 1 0 0 Chairman, President and CEO Common Stock 2019-11-05 4 D 0 16875 0.00 D 523109 D Common Stock 6818 I By 401(k) plan Represents 16,875 shares of restricted stock that were awarded on June 28, 2018 and would vest upon American Superconductor Corporation's (the "Company") achievement of a specified performance objective. On November 5, 2019, the Compensation Committee of the Board of Directors of the Company certified that the specified performance objective with respect to such shares was not met. As a result, these shares have been forfeited to the Company. Following all the transactions reported on this Form 4, the reporting person holds 523,109 shares directly. Following all the transactions reported on this Form 4, the reporting person holds 6,818 shares indirectly through the Company's 401(k) plan as of November 7, 2019. /s/ Daniel P. McGahn 2019-11-07