| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| PRINCIPAL GLOBAL INVESTORS | 11% | 8,915,023 | 0 | 8,915,023 | /s/ J. Markham Penrod | Chief Compliance Officer - North America, Principal Asset Managemen | |
| PRINCIPAL FUNDS, INC. | 7.6% | 6,389,714 | 0 | 6,389,714 | /s/ John L. Sullivan | Counsel and Assistant Secretary |