| SC 13G/A | 2018-02-14 | QS Investors, LLC | Global X Funds | 1,983,469 | 11.8% | EDGAR |
| SC 13G/A | 2018-02-14 | Global X Funds | CENTRUS ENERGY CORP | 663,497 | 8.7% | EDGAR |
| SC 13G/A | 2018-02-12 | Psagot Investment House Ltd. | Global X Funds | 864,176 | 6.9% | EDGAR |
| SC 13G/A | 2017-10-02 | Psagot Investment House Ltd. | Global X Funds | 870,862 | 10.0% | EDGAR |
| SC 13G | 2017-03-23 | Psagot Investment House Ltd. | Global X Funds | 871,947 | 15.2% | EDGAR |
| SC 13G/A | 2017-02-15 | Psagot Investment House Ltd. | Global X Funds | 826,508 | 14.0% | EDGAR |
| SC 13G/A | 2017-02-14 | QS Investors, LLC | Global X Funds | 1,600,028 | 11.3% | EDGAR |
| SC 13G/A | 2017-02-14 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Global X Funds | 3,421,800 | 10.0% | EDGAR |
| SC 13G/A | 2017-01-25 | Forward Management, LLC | Global X Funds | 35,940 | 4.5% | EDGAR |
| SC 13G/A | 2016-12-14 | REGENTATLANTIC CAPITAL LLC | Global X Funds | 371,533 | 4.9% | EDGAR |
| SC 13G/A | 2016-02-16 | QS Investors, LLC | Global X Funds | 1,159,870 | 10.5% | EDGAR |
| SC 13G/A | 2016-02-16 | Psagot Investment House Ltd. | Global X Funds | 692,900 | 10.1% | EDGAR |
| SC 13G/A | 2016-02-09 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Global X Funds | 3,372,345 | 10.8% | EDGAR |
| SC 13G | 2016-02-09 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Global X Funds | 2,811,900 | 8.9% | EDGAR |
| SC 13G/A | 2016-01-11 | Forward Management, LLC | Global X Funds | 35,940 | 9.0% | EDGAR |
| SC 13G/A | 2015-09-17 | BRINKER CAPITAL INC | Global X Funds | 1,590 | 0.0% | EDGAR |
| SC 13G | 2015-09-08 | Forward Management, LLC | Global X Funds | 35,940 | 10.3% | EDGAR |
| SC 13G | 2015-08-10 | REGENTATLANTIC CAPITAL LLC | Global X Funds | 757,082 | 13.0% | EDGAR |
| SC 13G | 2015-06-10 | QS Investors, LLC | Global X Funds | 1,246,752 | 10.9% | EDGAR |
| SC 13G | 2015-03-18 | Psagot Investment House Ltd. | Global X Funds | 776,536 | 10.2% | EDGAR |