X0508 4 2024-12-10 0000886128 FUELCELL ENERGY INC FCEL 0001921889 Feasel Mark C/O FUELCELL ENERGY, INC. 3 GREAT PASTURE ROAD DANBURY CT 06810 true EVP & Ch. Commercial Officer false Common Stock 2024-12-10 4 M 0 343 0 A 4901 D Common Stock 2024-12-10 4 F 0 180 11.35 D 4721 D Common Stock 2024-12-10 4 M 0 217 0 A 4938 D Common Stock 2024-12-10 4 F 0 114 11.35 D 4824 D Common Stock 2024-12-11 4 M 0 2525 0 A 7349 D Common Stock 2024-12-11 4 F 0 1322 12.56 D 6027 D Employee Performance Share Unit 0 2024-12-10 4 M 0 343 0 D Common Stock 343 0 D Employee Restricted Stock Unit 0 2024-12-10 4 M 0 217 0 D Common Stock 217 0 D Employee Restricted Stock Unit 0 2024-12-11 4 M 0 2525 0 D Common Stock 2525 5050 D Reflects the 1-for-30 reverse stock split effected by the Issuer on November 8, 2024. Shares were issued in settlement of earned performance share units. Represents shares withheld to satisfy tax obligations upon the vesting of performance share units. 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. On May 16, 2022, the reporting person was granted performance shares which were based on performance over the three-year performance period ended October 31, 2024, subject to continued employment. The performance goal was the TSR of the Company relative to the TSR of the Russell 2000 during the performance period. The Compensation and Leadership Development Committee certified achievement at 52.665% of the target number previously reported (as adjusted to reflect the 1-for-30 reverse stock split effected by the Issuer on November 8, 2024), resulting in the award of 343 shares. On May 16, 2022, the reporting person was granted restricted stock units, which vested 1/3 on each of December 10, 2022, December 10, 2023 and December 10, 2024, subject to continued employment. On December 11, 2023, 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. /s/ Michael S. Bishop, as Power of Attorney 2024-12-12