| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Lightera, LLC | 7.24% | 642,199 | 0 | 642,199 | /s/ Robert D. Lake | Robert D. Lake, Senior Vice President - Legal & Secretary | |
| Furukawa Electric Co., Ltd. | 7.24% | 642,199 | 0 | 642,199 | /s/ Nagamasa Honda | Nagamasa Honda, Manager, Legal Department |