SEC Form S-8 filed by FuelCell Energy Inc.

As filed with the Securities and Exchange Commission on April 10, 2026

Registration No. 333-   

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
 

FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

FUELCELL ENERGY, INC.
(Exact name of registrant as specified in its charter)

FUELCELL ENERGY, INC. SIXTH AMENDED AND RESTATED 2018 OMNIBUS INCENTIVE PLAN
FUELCELL ENERGY, INC. 2018 EMPLOYEE STOCK PURCHASE PLAN, AS AMENDED AND
RESTATED EFFECTIVE AS OF APRIL 2, 2026
(Full title of the plan)

Amanda J. Schreiber, Esq.

Executive Vice President, General Counsel, and Corporate Secretary
FuelCell Energy, Inc.
3 Great Pasture Road
Danbury, Connecticut 06810
(203) 825-6000

(Name, address and telephone number, including area
code, of agent for service)

Copies to:

Megan A. Odroniec, Esq.
Foley & Lardner LLP
100 North Tampa Street, Suite 2700
Tampa, Florida 33602

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  ¨

STATEMENT PURSUANT TO GENERAL INSTRUCTION E TO FORM S-8

The purpose of this Registration Statement is to register the offer and sale of (a) 3,000,000 additional shares of common stock, $0.0001 par value per share (“Common Stock”), of FuelCell Energy, Inc. (the “Company” or the “Registrant”) in connection with the Company’s Sixth Amended and Restated 2018 Omnibus Incentive Plan, and (b) 300,000 additional shares of Common Stock in connection with the Company’s 2018 Employee Stock Purchase Plan, as amended and restated effective as of April 2, 2026.

Pursuant to General Instruction E of Form S-8, the contents of the Company’s Registration Statements on Form S-8 filed on April 5, 2018 (Reg. No. 333-224154), May 22, 2020 (Reg. No. 333-238609), April 8, 2021 (Reg. No. 333-255131), June 28, 2023 (Reg. No. 333-272990), April 5, 2024 (Reg. No. 333-278542), and April 21, 2025 (Reg. No. 333-286655), including the documents incorporated by reference therein, are incorporated by reference into this Registration Statement.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Documents by Reference.

The Company hereby incorporates by reference into this Registration Statement the documents listed in (a) through (d) below, which have previously been filed with the Securities and Exchange Commission (the “Commission”):

In addition, all documents filed with the Commission by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), on or after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement that indicates that all securities offered hereunder have been sold or that deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing of such documents; provided, however, that documents or information deemed to have been furnished and not filed in accordance with the rules of the Commission shall not be deemed incorporated by reference into this Registration Statement. Further, unless specifically stated to the contrary, none of the information disclosed by the Registrant under Items 2.02 or 7.01 of any Current Report on Form 8-K, including the related exhibits under Item 9.01, that the Registrant may from time to time furnish to the Commission will be incorporated by reference into, or otherwise included in, this Registration Statement.

Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document that also is incorporated or deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

Item 8.                   Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Danbury, State of Connecticut, on April 10, 2026.

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Jason B. Few, Amanda J. Schreiber and Michael S. Bishop, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and re-substitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, and any other regulatory authority, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or their substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on April 10, 2026.