| Filed | Form | Description | |
|---|---|---|---|
| 2/18/26 | DEFA14A | DEFA14A | → |
| 2/18/26 | DEF 14A | DEF 14A | → |
| 4/3/25 | DEFA14A | DEFA14A | → |
| 2/21/25 | DEFA14A | DEFA14A | → |
| 2/21/25 | DEF 14A | DEF 14A | → |
| 9/17/24 | DEFA14A | DEFA14A | → |
| ↓ | |||
| Filed | Form | Description | |
|---|---|---|---|
| 1/27/26 | 4 | 4 | → |
| 1/23/26 | 3 | FORM 3 | → |
| 1/20/26 | 4 | 4 | → |
| 1/20/26 | 4 | 4 | → |
| 1/2/26 | 4 | 4 | → |
| 1/2/26 | 4 | 4 | → |
| ↓ | |||
A fuel cell is an electrochemical cell that converts the chemical energy of a fuel and an oxidizing agent into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen to sustain the chemical reaction, whereas in a battery the chemical energy usually comes from substances that are already present in the battery.