| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Ameriprise Financial, Inc. | 14% | 14,715,550 | 0 | 13,709,672 | /s/ Michael G. Clarke | Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services | |
| Columbia Management Investment Advisers, LLC | 13% | 13,804,250 | 13,561,298 | /s/ Michael G. Clarke | Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services | ||
| Columbia Seligman Technology and Information Fund | 7.4% | 7,971,906 | 7,971,906 | 0 | /s/ Michael G. Clarke | Michael G. Clarke, Senior Vice President & Chief Financial Officer |