FuelCell director awarded 17,424 RSUs

von Althann Natica reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

von Althann Natica reported acquisition or exercise transactions in this Form 4 filing.

FuelCell Energy Inc. director Natica von Althann received a grant of 17,424 Director Restricted Stock Units. The award was made on April 8, 2026 as compensation, not an open-market trade. These units vest on the date of the company’s regularly scheduled annual stockholder meeting to be held in 2027. After vesting, they will be settled in either cash or shares of FuelCell Energy common stock, at the discretion of the Compensation and Leadership Development Committee under the 2018 Omnibus Incentive Plan. Following this grant, von Althann holds 17,424 such units directly.

Insider Trade Summary

Grant/Award: 17,424 shares

Grant/Award 1 txn

Insider von Althann Natica

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Director Restricted Stock Unit	17,424	$0.00	$0.00

Holdings After Transaction: Director Restricted Stock Unit — 17,424 contracts (Direct)

Footnotes (1)

1. F1. These restricted stock units (i) vest on the date of the regularly scheduled annual meeting of the stockholders of the Issuer to be held in 2027, and (ii) are to be settled in cash or in shares of the Company's common stock, at the discretion of the Compensation and Leadership Development Committee, as the administrator under the 2018 Omnibus Incentive Plan, as amended and restated.

Key Figures

RSUs granted: 17,424 units Exercise/Conversion price: $0.0000 per unit RSUs after transaction: 17,424 units +2 more

5 metrics

RSUs granted 17,424 units Director Restricted Stock Units granted on April 8, 2026

Exercise/Conversion price $0.0000 per unit Director Restricted Stock Unit award

RSUs after transaction 17,424 units Total Director Restricted Stock Units following the grant

Underlying shares 17,424 shares Common stock underlying the Director Restricted Stock Units

Vesting timing 2027 annual meeting Units vest at the 2027 regularly scheduled stockholder meeting

Key Terms

Director Restricted Stock Unit, 2018 Omnibus Incentive Plan, Compensation and Leadership Development Committee, grant, award, or other acquisition

4 terms

Director Restricted Stock Unit financial

"security_title: "Director Restricted Stock Unit""

2018 Omnibus Incentive Plan financial

"administrator under the 2018 Omnibus Incentive Plan, as amended and restated"

Compensation and Leadership Development Committee financial

"at the discretion of the Compensation and Leadership Development Committee"

grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did FuelCell Energy (FCEL) report for Natica von Althann?

FuelCell Energy reported that director Natica von Althann received a grant of 17,424 Director Restricted Stock Units on April 8, 2026. This is a compensation-related award, not an open-market stock purchase or sale, and represents her current reported holding of these units.

How many restricted stock units did the FCEL director receive in this Form 4 filing?

The director received 17,424 Director Restricted Stock Units linked to FuelCell Energy common stock. These units were awarded at no exercise price and bring her total reported holdings of this RSU award type to 17,424 units following the transaction disclosed in the filing.

When do Natica von Althann’s FuelCell Energy restricted stock units vest?

The restricted stock units vest on the date of FuelCell Energy’s regularly scheduled annual meeting of stockholders to be held in 2027. Vesting occurs in a single tranche at that meeting date, according to the footnote describing the award terms in the Form 4.

Will the FCEL director’s restricted stock units be settled in cash or shares?

The restricted stock units may be settled in either cash or shares of FuelCell Energy common stock. The Compensation and Leadership Development Committee, administering the 2018 Omnibus Incentive Plan, has discretion to choose the settlement form when the units vest in 2027.

Is the FuelCell Energy (FCEL) Form 4 transaction a stock purchase or sale?

No, the Form 4 shows a grant coded as an acquisition (transaction code A) of 17,424 restricted stock units. This represents an equity-based compensation award to the director, not an open-market buy or sell of FuelCell Energy common stock.

What plan governs the director’s restricted stock unit grant at FuelCell Energy?

The grant is made under FuelCell Energy’s 2018 Omnibus Incentive Plan, as amended and restated. The Compensation and Leadership Development Committee administers this plan and decides whether vested restricted stock units are ultimately settled in cash or common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/10/2026 - 06:08 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

von Althann Natica

(Last) (First) (Middle)

C/O FUELCELL ENERGY, INC

3 GREAT PASTURE ROAD

(Street)

DANBURY CONNECTICUT 06810

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FUELCELL ENERGY INC [ FCEL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Director Restricted Stock Unit	(1)	04/08/2026		A		17,424		(1)	(1)	Common Stock	17,424	$0	17,424	D

Explanation of Responses:

1. These restricted stock units (i) vest on the date of the regularly scheduled annual meeting of the stockholders of the Issuer to be held in 2027, and (ii) are to be settled in cash or in shares of the Company's common stock, at the discretion of the Compensation and Leadership Development Committee, as the administrator under the 2018 Omnibus Incentive Plan, as amended and restated.

	/s/ Michael S. Bishop, As Power of Attorney	04/10/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)