Form 4 Filing for FuelCell Energy Inc.

This filing details a Form 4 submission by Matthew F. Hilzinger, a director at FuelCell Energy Inc. (FCEL). On April 8, 2026, Mr. Hilzinger acquired 17,424 Deferred Common Stock Units with a transaction value of $0. This acquisition was made pursuant to the Directors Deferred Compensation Plan. These units are convertible on a one-for-one basis into shares of common stock upon separation from service. Following this transaction, Mr. Hilzinger holds a total of 49,533 shares of common stock or equivalent units. The filing was signed by Michael S. Bishop as Power of Attorney on April 10, 2026.