| Company | Shares | %Out | Value ($)
| Reported | Change | | Robeco Asset Management | 578,045 | 1.31 | 28,734,617 | 3/31/2013 | 578,045 | | Century Capital Management LLC | 160,000 | .36 | 7,953,600 | 3/31/2013 | 160,000 | | Fiduciary Management Associates LLC | 136,180 | .31 | 6,769,508 | 3/31/2013 | 136,180 | | Citadel Advisors LLC | 122,005 | .28 | 6,064,869 | 3/31/2013 | 122,005 | | Highbridge Capital Management LLC | 100,595 | .23 | 5,000,577 | 3/31/2013 | 100,595 | | UBS O'Connor LLC | 100,000 | .23 | 4,971,000 | 3/31/2013 | 100,000 | | Dalton Strategic Partnership LLP | 38,479 | .09 | 1,912,791 | 6/30/2012 | 38,479 | | Millennium Management LLC | 35,009 | .08 | 1,740,297 | 3/31/2013 | 35,009 | | UBS Global Asset Management (Switzerland) | 27,800 | .06 | 1,381,938 | 3/31/2013 | 27,800 | | Tewksbury Capital Management Ltd. | 21,743 | .05 | 1,080,845 | 3/31/2013 | 21,743 | | AXA Rosenberg Investment Management Ltd. (UK) | 14,400 | .03 | 715,824 | 12/31/2012 | 14,400 | | General Motors Asset Management | 13,691 | .03 | 680,580 | 3/31/2013 | 13,691 | | Advanced Investment Partners LLC | 10,407 | .02 | 517,332 | 3/31/2013 | 10,407 | | A.R.T. Advisors LLC | 10,263 | .02 | 510,174 | 3/31/2013 | 10,263 | | Northwestern Mutual Wealth Management Co. | 6,931 | .02 | 344,540 | 3/31/2013 | 6,931 | | Susquehanna Financial Group LLLP | 6,658 | .02 | 330,969 | 3/31/2013 | 6,658 | | Jefferies Capital Management Inc. | 6,312 | .01 | 313,770 | 3/31/2013 | 6,312 | | DIAM U.S.A. Inc. | 6,200 | .01 | 308,202 | 3/31/2013 | 6,200 | | Santa Fe Partners LLC | 5,862 | .01 | 291,400 | 3/31/2013 | 5,862 | | Commonwealth Equity Services, Inc. | 5,528 | .01 | 274,797 | 3/31/2013 | 5,528 | | S.A.C. Capital Advisors LP | 5,349 | .01 | 265,899 | 3/31/2013 | 5,349 | | Neuberger Berman LLC | 4,325 | .01 | 214,996 | 3/31/2013 | 4,325 | | Allstate Investment Management Co. | 3,780 | .01 | 187,904 | 3/31/2013 | 3,780 | | Tower Research Capital LLC | 1,999 | .00 | 99,370 | 3/31/2013 | 1,999 | | Merrill Lynch International | 151 | .00 | 7,506 | 3/31/2013 | 151 | | Synovus Securities Inc. | 148 | .00 | 7,357 | 3/31/2013 | 148 | | Rows 1 through 26 of 26 |
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