| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Charles River XIII GP, LLC | 7,644,146 | 9.61 | 48,540,327 | 31-Mar-2013 | | FMR, LLC | 4,555,814 | 5.73 | 28,929,418 | 31-Mar-2013 | | Bank of New York Mellon Corporation | 3,039,498 | 3.82 | 19,300,812 | 31-Mar-2013 | | Kornitzer Capital Management, Inc. | 2,029,175 | 2.55 | 12,885,261 | 31-Mar-2013 | | Massachusetts Financial Services Co. | 1,590,340 | 2.00 | 10,098,659 | 31-Mar-2013 | | Columbia Capital IV, LLC | 11,297,902 | 14.20 | 71,741,677 | 31-Mar-2013 | | Charles River Partnership XIII GP, LP | 8,672,214 | 10.90 | 108,662,841 | 31-Dec-2012 | | Deer VI & Co LLC | 8,611,244 | 10.83 | 54,681,399 | 31-Mar-2013 | | NEA Management Company, LLC | 8,224,752 | 10.34 | 52,227,175 | 31-Mar-2013 | | Jennison Associates LLC | 1,579,579 | 1.99 | 10,030,326 | 31-Mar-2013 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Fidelity OTC Portfolio | 3,137,908 | 3.95 | 21,745,702 | 30-Apr-2013 | | Buffalo Small Cap Fund | 1,505,000 | 1.89 | 9,556,750 | 31-Mar-2013 | | MFS New Discovery Fund | 697,760 | 0.88 | 6,538,011 | 28-Feb-2013 | | Dreyfus Inv Fds-Dreyfus/Boston Company Small/Mid Cap Growth | 686,850 | 0.86 | 4,759,870 | 30-Apr-2013 | | Prudential Jennison Small Company Fd | 682,150 | 0.86 | 4,727,299 | 30-Apr-2013 | | Lord Abbett Developing Growth Fund | 608,453 | 0.76 | 7,021,547 | 31-Jan-2013 | | Vanguard Small-Cap Index Fund | 475,527 | 0.60 | 3,019,596 | 31-Mar-2013 | | MFS Variable Insurance Trust-MFS New Discovery Series | 402,050 | 0.51 | 2,553,017 | 31-Mar-2013 | | Vanguard Total Stock Market Index Fund | 368,046 | 0.46 | 2,337,092 | 31-Mar-2013 | | Fidelity Select Portfolios - Technology | 334,976 | 0.42 | 2,321,383 | 30-Apr-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. |
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