X0508 4 2023-11-24 0000886128 FUELCELL ENERGY INC FCEL 0001523478 Bishop Michael S. C/O FUELCELL ENERGY, INC. 3 GREAT PASTURE ROAD DANBURY CT 06810 true EVP, TREASURER & CFO false Common Stock 2023-11-24 4 M 0 9610 0 A 117191 D Common Stock 2023-11-24 4 F 0 4454 1.17 D 112737 D Common Stock 2023-11-24 4 M 0 53538 0 A 166275 D Common Stock 2023-11-24 4 F 0 24810 1.17 D 141465 D Common Stock 2023-11-24 4 M 0 19686 0 A 161151 D Common Stock 2023-11-24 4 F 0 9123 1.17 D 152028 D Employee Restricted Stock Unit 2023-11-24 4 M 0 9610 0 D Common Stock 9610 0 D Employee Performance Share Unit 2023-11-24 4 M 0 53538 D Common Stock 53538 0 D Employee Performance Share Unit 2023-11-24 4 M 0 19686 D Common Stock 19686 0 D Restricted stock units were converted into common stock on a one-for-one basis. Represents shares withheld to satisfy tax obligations upon the vesting of restricted stock units. Each performance share unit represents the right to receive a single share of common stock, and the number of performance shares that could be earned could range up to two times the reported target number of performance share units (which was 26,769). Represents shares withheld to satisfy tax obligations upon the vesting of performance share units. Represents shares issued in settlement of earned performance share units. On November 24, 2020, the reporting person was granted restricted stock units, which vest 1/3 on each of the first, second and third anniversaries of the date of grant, subject to continued employment. On November 24, 2020, the reporting person was granted performance shares which were based on performance over the three-year performance period ended October 31, 2023, subject to continued employment until the third anniversary of the grant date (November 24, 2023). The performance goal was an increase in the Company's stock price during the performance period. The maximum number of performance shares that could be earned based on performance was two times the target number previously reported (26,769). The Compensation Committee certified achievement at 200% of the target number, resulting in the award of 53,538 shares. On November 24, 2020, the reporting person was granted performance shares which were based on performance over the three-year performance period ended October 31, 2023, subject to continued employment until the third anniversary of the grant date (November 24, 2023). The performance goal was the TSR of the Company relative to the TSR of the Russell 2000 Index during the performance period. The Compensation Committee certified achievement at 73.54% of the target number previously reported (26,769), resulting in the award of 19,686 shares. /s/ Michael S. Bishop 2023-11-28