| SC 13G | 2014-02-11 | VANGUARD GROUP INC | Artisan Partners Asset Management Inc. | 1,044,173 | 5.3% | EDGAR |
| SC 13G | 2014-01-27 | EAGLE ASSET MANAGEMENT INC | Artisan Partners Asset Management Inc. | 1,060,700 | 5.4% | EDGAR |
| SC 13G | 2014-01-21 | SUTTER HILL VENTURES | Artisan Partners Asset Management Inc. | 718,699 | 3.5% | EDGAR |
| SC 13G | 2014-01-21 | Barger Matthew R | Artisan Partners Asset Management Inc. | 1,635,672 | 7.6% | EDGAR |
| SC 13G | 2014-01-17 | Samra Nicholas David | Artisan Partners Asset Management Inc. | 2,119,517 | 9.9% | EDGAR |
| SC 13G | 2014-01-17 | Sertl George O. Jr. | Artisan Partners Asset Management Inc. | 2,040,217 | 9.3% | EDGAR |
| SC 13G | 2014-01-17 | O'Keefe Daniel J. | Artisan Partners Asset Management Inc. | 2,106,632 | 9.9% | EDGAR |
| SC 13G | 2014-01-17 | Kieffer James C. | Artisan Partners Asset Management Inc. | 2,045,135 | 9.4% | EDGAR |
| SC 13G | 2014-01-17 | Satterwhite Scott C | Artisan Partners Asset Management Inc. | 2,041,730 | 9.3% | EDGAR |
| SC 13D/A | 2013-11-12 | ZIEGLER ANDREW A | Artisan Partners Asset Management Inc. | 36,831,950 | 66.9% | EDGAR |
| SC 13G/A | 2013-09-10 | LORD, ABBETT & CO. LLC | Artisan Partners Asset Management Inc. | 1,500,580 | 10.5% | EDGAR |
| SC 13D/A | 2013-07-22 | ZIEGLER ANDREW A | Artisan Partners Asset Management Inc. | 36,854,318 | 74.4% | EDGAR |
| SC 13G/A | 2013-07-10 | FMR LLC | Artisan Partners Asset Management Inc. | 602,014 | 4.7% | EDGAR |
| SC 13G | 2013-05-10 | FMR LLC | Artisan Partners Asset Management Inc. | 1,213,712 | 11.0% | EDGAR |
| SC 13G | 2013-04-10 | LORD, ABBETT & CO. LLC | Artisan Partners Asset Management Inc. | 1,734,882 | 15.7% | EDGAR |
| SC 13D | 2013-03-20 | ZIEGLER ANDREW A | Artisan Partners Asset Management Inc. | 35,898,764 | 74.0% | EDGAR |