| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Times Square Capital Management | 1,659,850 | 5.91 | 15,005,044 | Dec 31, 2012 | | Marxe, Austin W. & Greenhouse, David M. | 1,211,523 | 4.31 | 7,523,557 | Mar 31, 2013 | | Bank of New York Mellon Corporation | 1,179,949 | 4.20 | 7,327,483 | Mar 31, 2013 | | Thomson Horstmann & Bryant, Inc. | 1,028,400 | 3.66 | 6,386,364 | Mar 31, 2013 | | J. Goldman & Co., L.P. | 944,054 | 3.36 | 8,534,248 | Dec 31, 2012 | | Vanguard Group, Inc. (The) | 801,946 | 2.85 | 4,980,084 | Mar 31, 2013 | | Price (T.Rowe) Associates Inc | 640,000 | 2.28 | 5,785,600 | Dec 31, 2012 | | Next Century Growth Investors LLC | 570,255 | 2.03 | 5,155,105 | Dec 31, 2012 | | AllianceBernstein, L.P. | 557,864 | 1.99 | 3,464,335 | Mar 31, 2013 | | Emerald Advisers | 543,410 | 1.93 | 3,374,576 | Mar 31, 2013 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Federated Kaufmann Small Cap Fund | 588,000 | 2.09 | 4,950,960 | Jan 31, 2013 | | Advanced Series Tr-AST/Federated Aggressive Growth Port | 441,042 | 1.57 | 3,987,019 | Dec 31, 2012 | | Vanguard Small-Cap Index Fund | 383,901 | 1.37 | 3,470,465 | Dec 31, 2012 | | Managers AMG Funds-Timessquare Small Cap Growth Fund | 380,000 | 1.35 | 3,199,600 | Jan 31, 2013 | | Vanguard Total Stock Market Index Fund | 306,202 | 1.09 | 2,768,066 | Dec 31, 2012 | | First Tr Exchange Traded Fd-First Tr ISE Cloud Computing Ind | 282,394 | 1.01 | 2,552,841 | Dec 31, 2012 | | Vanguard Small-Cap Growth Index Fund | 270,292 | 0.96 | 2,443,439 | Dec 31, 2012 | | Columbia Fds Var Ser Tr II-Var Port-Partners Small Cap Growt | 209,712 | 0.75 | 1,895,796 | Dec 31, 2012 | | TIAA-CREF Funds-Small-Cap Equity Fund | 187,612 | 0.67 | 1,579,693 | Jan 31, 2013 | | Claymore ETF Tr-Guggenheim Raymond James SB-1 Equity ETF | 157,618 | 0.56 | 978,807 | Mar 31, 2013 |
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View Transactions for Insiders & Institutional Holders Value shown is computed using the security's price on the report date given. Currency in USD. |