| Top Holders
| | | Shares Held | % O/S | Share Change | Filing Date | | Elliott International Capital Advisors, Inc. | 8,925,927 | 9.8 | 0 | 03/31/13 | | Wellington Management Company, LLP | 7,037,857 | 7.8 | -105,869 | 03/31/13 | | Altai Capital Management, L.P. | 5,474,223 | 6.0 | 625,000 | 05/07/13 | | BlackRock Institutional Trust Company, N.A. | 4,765,856 | 5.3 | 227,014 | 03/31/13 | | The Vanguard Group, Inc. | 4,598,729 | 5.1 | -70,777 | 03/31/13 | | Dimensional Fund Advisors, LP | 3,535,448 | 3.9 | 303,360 | 03/31/13 | | Paradigm Capital Management, Inc. | 3,206,433 | 3.5 | 428,495 | 03/31/13 | | Thompson, Siegel & Walmsley LLC | 3,109,401 | 3.4 | -55,071 | 03/31/13 | | Lee Munder Capital Group LLC | 2,379,239 | 2.6 | 264,803 | 03/31/13 | | Investment Counselors of Maryland, LLC | 2,166,450 | 2.4 | 0 | 03/31/13 |
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