FuelCell Energy

(77,907) (38,049) Series B preferred stock dividends (800) (800) Net loss attributable to common stockholders $ (78,707) $ (38,849) Loss per share basic and diluted: Net loss per share attributable to common stockholders $ (1.45) $ (1.79) Basic and diluted weighted average shares outstanding 54,224,428 21,740,193 FUELCELL ENERGY, INC.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

(100,767) (66,375) Series B preferred stock dividends (1,600) (1,600) Net loss attributable to common stockholders $ (102,367) $ (67,975) Loss per share basic and diluted: Net loss per share attributable to common stockholders $ (2.00) $ (3.22) Basic and diluted weighted average shares outstanding 51,165,339 21,110,664 Appendix Non-GAAP Financial Measures Financial results are presented in accordance with accounting principles generally accepted in the United States ( GAAP ).

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

( 44,467 ) ( 91,656 ) Series B preferred stock dividends ( 800 ) ( 800 ) Net loss attributable to common stockholders $ ( 45,267 ) $ ( 92,456 ) Loss per share basic and diluted: Net loss per share attributable to common stockholders $ ( 0.64 ) $ ( 3.78 ) Basic and diluted weighted average shares outstanding 70,405,692 24,441,294 Three Months Ended July 31, 2026 2025 Net loss $ ( 45,283 ) $ ( 91,896 ) Other comprehensive income (loss): Foreign currency translation adjustments 64 ( 374 ) Total comprehensive loss $ ( 45,219 ) $ ( 92,270 ) Comprehensive income (loss) attributable to noncontrolling interests ( 816 ) ( 240 ) Comprehensive loss attributable to FuelCell Energy, Inc.

SEC original ↗FuelCell Energy — 10-Q Quarterly report10-QSep 2, 2026

( 145,234 ) ( 158,031 ) Series B preferred stock dividends ( 2,400 ) ( 2,400 ) Net loss attributable to common stockholders $ ( 147,634 ) $ ( 160,431 ) Loss per share basic and diluted: Net loss per share attributable to common stockholders $ ( 2.56 ) $ ( 7.22 ) Basic and diluted weighted average shares outstanding 57,649,267 22,233,074 Nine Months Ended July 31, 2026 2025 Net loss $ ( 148,963 ) $ ( 162,031 ) Other comprehensive (loss) income: Foreign currency translation adjustments ( 51 ) ( 320 ) Total comprehensive loss $ ( 149,014 ) $ ( 162,351 ) Comprehensive loss attributable to noncontrolling interests ( 3,729 ) ( 4,000 ) Comprehensive loss attributable to FuelCell Energy, Inc.

SEC original ↗FuelCell Energy — 10-Q Quarterly report10-QSep 2, 2026

Liquidity Our principal sources of cash have been proceeds from the sale of our products and projects, electricity generation revenues, research and development and service agreements with third parties, sales of our common stock through public equity offerings, and proceeds from debt, project financing and tax monetization transactions.

SEC original ↗FuelCell Energy — 10-Q Quarterly report10-QSep 2, 2026

The Company has also utilized and expects to continue to utilize a combination of long-term debt and tax equity financing (e.

SEC original ↗FuelCell Energy — 10-Q Quarterly report10-QSep 2, 2026

htm EX-99.1 FuelCell Energy Exhibit 99.1 FuelCell Energy Reports Second Fiscal Quarter 2026 Results; Advances Data Center Power Strategy DANBURY, Conn.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

In effect, we are focused on extending the grid to the data center, enabling customers to accelerate time-to-power, reducing dependence on constrained transmission infrastructure, removing permitting friction, and supporting the growing energy demands of AI-driven compute environments with proven, scalable technology.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

To address increased product demand from the Company s growing commercial pipeline and interest in the 12.5 MW Energy Block, the Company has begun work on the previously announced expansion of its Torrington, CT manufacturing facility.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

In light of increased demand, the previously contemplated capacity expansion to support an annualized production rate of up to 350 MW has been increased, with the target of supporting an annualized production rate of up to 500 MW.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

The Company estimates that total cost of the expansion will range from $200 to $275 million.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

These forward-looking statements are not guarantees of future performance, and all forward-looking statements are subject to risks and uncertainties, known and unknown, that could cause actual results and future events to differ materially from those projected.

SEC original ↗FuelCell Energy — Earnings release (8-K exhibit)EX-99Jun 8, 2026

Low-concentration industrial and gas turbine flue streams are the highest-impact, least-solved decarbonization challenge at scale — and carbonate fuel cells are uniquely suited to capture the CO₂.

SEC original ↗FuelCell Energy — Presentation / slide deck (8-K exhibit)EX-99Jun 8, 2026

Due to the inherent uncertainty involved in making estimates, actual results in future periods may differ from those estimates.

SEC original ↗FuelCell Energy — 10-Q Quarterly report10-QSep 2, 2026