| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| CALPERS (California-Public Employees Retirement System) | 202,000 | 0.11 | 395,920 | Mar 31, 2013 | | Macquarie Group Limited | 91,200 | 0.05 | 176,928 | Dec 31, 2012 | | Knight Capital Group, Inc. | 16,367 | 0.01 | 32,079 | Mar 31, 2013 | | Shaw D.E. & Co., Inc. | 17,004 | 0.01 | 32,987 | Dec 31, 2012 | | Citadel Advisors LLC | 23,807 | 0.01 | 46,185 | Dec 31, 2012 | | UBS AG | 23,974 | 0.01 | 46,989 | Mar 31, 2013 | | Deutsche Bank Aktiengesellschaft | 24,392 | 0.01 | 47,320 | Dec 31, 2012 | | Bank of America Corporation | 2,650 | 0.00 | 5,141 | Dec 31, 2012 | | Group One Trading, L.P. | 2,172 | 0.00 | 4,257 | Mar 31, 2013 | | Wells Fargo & Company | 800 | 0.00 | 1,568 | Mar 31, 2013 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Delaware VIP Emerging Markets Series | 91,200 | 0.05 | 176,928 | Dec 31, 2012 | | Fidelity NASDAQ Composite Index Fund | 1,965 | 0.00 | 3,851 | Mar 31, 2013 | | Fidelity NASDAQ Composite Index Tracking Stock | 1,856 | 0.00 | 3,637 | Mar 31, 2013 |
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Value shown is computed using the security's price on the report date given. Currency in USD. |