| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Impax Asset Management Group plc | 4% | 1,091,042 | 1,091,042 | 0 | Karen Cockburn | Chief Financial Officer | |
| Impax Asset Management LTD | 3.5% | 963,992 | 963,992 | 0 | Karen Cockburn | Chief Financial Officer | |
| Impax Asset Management (AIFM) Ltd | 0.5% | 127,050 | 127,050 | 0 | Karen Cockburn | Chief Financial Officer |