| Company | Shares | %Out | Value ($)
| Reported | Change | | Robeco Asset Management | 578,045 | 1.31 | 29,838,683 | 3/31/2013 | 578,045 | | Century Capital Management LLC | 160,000 | .36 | 8,259,200 | 3/31/2013 | 160,000 | | Fiduciary Management Associates LLC | 136,180 | .31 | 7,029,612 | 3/31/2013 | 136,180 | | Citadel Advisors LLC | 122,005 | .28 | 6,297,898 | 3/31/2013 | 122,005 | | Highbridge Capital Management LLC | 100,595 | .23 | 5,192,714 | 3/31/2013 | 100,595 | | UBS O'Connor LLC | 100,000 | .23 | 5,162,000 | 3/31/2013 | 100,000 | | Dalton Strategic Partnership LLP | 38,479 | .09 | 1,986,286 | 6/30/2012 | 38,479 | | Millennium Management LLC | 35,009 | .08 | 1,807,165 | 3/31/2013 | 35,009 | | UBS Global Asset Management (Switzerland) | 27,800 | .06 | 1,435,036 | 3/31/2013 | 27,800 | | Tewksbury Capital Management Ltd. | 21,743 | .05 | 1,122,374 | 3/31/2013 | 21,743 | | AXA Rosenberg Investment Management Ltd. (UK) | 14,400 | .03 | 743,328 | 12/31/2012 | 14,400 | | General Motors Asset Management | 13,691 | .03 | 706,729 | 3/31/2013 | 13,691 | | Advanced Investment Partners LLC | 10,407 | .02 | 537,209 | 3/31/2013 | 10,407 | | A.R.T. Advisors LLC | 10,263 | .02 | 529,776 | 3/31/2013 | 10,263 | | Northwestern Mutual Wealth Management Co. | 6,931 | .02 | 357,778 | 3/31/2013 | 6,931 | | Susquehanna Financial Group LLLP | 6,658 | .02 | 343,686 | 3/31/2013 | 6,658 | | Jefferies Capital Management Inc. | 6,312 | .01 | 325,825 | 3/31/2013 | 6,312 | | DIAM U.S.A. Inc. | 6,200 | .01 | 320,044 | 3/31/2013 | 6,200 | | Santa Fe Partners LLC | 5,862 | .01 | 302,596 | 3/31/2013 | 5,862 | | Commonwealth Equity Services, Inc. | 5,528 | .01 | 285,355 | 3/31/2013 | 5,528 | | S.A.C. Capital Advisors LP | 5,349 | .01 | 276,115 | 3/31/2013 | 5,349 | | Neuberger Berman LLC | 4,325 | .01 | 223,257 | 3/31/2013 | 4,325 | | Allstate Investment Management Co. | 3,780 | .01 | 195,124 | 3/31/2013 | 3,780 | | Tower Research Capital LLC | 1,999 | .00 | 103,188 | 3/31/2013 | 1,999 | | Merrill Lynch International | 151 | .00 | 7,795 | 3/31/2013 | 151 | | Synovus Securities Inc. | 148 | .00 | 7,640 | 3/31/2013 | 148 | | Rows 1 through 26 of 26 |
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