# EDGAR Filing Document

**Accession Number:** 0000886128
**File Stem:** 0000897069-25-001747
**Filing Date:** 2025-12
**Character Count:** 6933
**Document Hash:** 7151ad60f44ece0b92208bf818fcc7a7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000897069-25-001747.hdr.sgml**: 20251201

**ACCESSION NUMBER**: 0000897069-25-001747

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251128

**FILED AS OF DATE**: 20251201

**DATE AS OF CHANGE**: 20251201

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Dolger Joshua
- **CENTRAL INDEX KEY:** 0001868593

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14204
- **FILM NUMBER:** 251540636

**MAIL ADDRESS:**
- **STREET 1:** FUELCELL ENERGY, INC.
- **STREET 2:** 3 GREAT PASTURE ROAD
- **CITY:** DANBURY
- **STATE:** CT
- **ZIP:** 06810
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FUELCELL ENERGY INC
- **CENTRAL INDEX KEY:** 0000886128
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRICAL INDUSTRIAL APPARATUS [3620]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 060853042
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**BUSINESS ADDRESS:**
- **STREET 1:** 3 GREAT PASTURE ROAD
- **CITY:** DANBURY
- **STATE:** CT
- **ZIP:** 06810
- **BUSINESS PHONE:** 2038256000

**MAIL ADDRESS:**
- **STREET 1:** 3 GREAT PASTURE ROAD
- **CITY:** DANBURY
- **STATE:** CT
- **ZIP:** 06810

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ENERGY RESEARCH CORP /NY/
- **DATE OF NAME CHANGE:** 19930328

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Dolger Joshua<br><sub>(Last) (First) (Middle)</sub><br>C/O FUELCELL ENERGY, INC.<br>3 GREAT PASTURE ROAD<br><sub>(Street)</sub><br>DANBURY, CT 06810<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_General Counsel & Corp Sec_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>FUELCELL ENERGY INC [ FCEL ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Employee Restricted Stock Unit | 0<sup>(1)</sup> | 2025-11-28 |  | A |  | 36136 |  | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 36136 | $0 | 36136 | D |  |
| Employee Performance Share Unit | 0<sup>(3)</sup> | 2025-11-28 |  | A |  | 36137 |  | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 36137 | $0 | 36137 | D |  |

---

### Footnotes:

(1) Each restricted stock unit represents a contingent right to receive one share of common stock or the equivalent cash value upon vesting of the restricted stock unit.

(2) On November 28, 2025, 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.

(3) Each performance share unit represents a contingent right to receive one share of common stock or the equivalent cash value upon vesting of the performance share unit.

(4) On November 28, 2025, the reporting person was granted performance share units that will be earned based on the Company's total shareholder return ("TSR") performance during the fiscal year 2026, fiscal years 2026-2027 and fiscal years 2026-2028 performance periods, subject to continued employment until the third anniversary of the grant date. The number of performance share units reported is the target number; up to 235% of the target number may be earned based on TSR performance.

**Signature:** /s/ Michael S. Bishop, as Power of Attorney  
**Date:** 2025-12-01

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**