| SC 13G/A | 2015-07-10 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 673,151 | 10.6% | EDGAR |
| SC 13G/A | 2015-03-10 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 908,934 | 19.3% | EDGAR |
| SC 13G/A | 2015-01-30 | CURIAN CAPITAL LLC | FIRST TRUST EXCHANGE-TRADED FUND IV | 2,800,943 | 7.7% | EDGAR |
| SC 13G/A | 2015-01-09 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 577,984 | 13.3% | EDGAR |
| SC 13G | 2015-01-09 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 3,803,447 | 50.7% | EDGAR |
| SC 13G/A | 2014-12-10 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 1,021,150 | 22.7% | EDGAR |
| SC 13G/A | 2014-12-08 | CURIAN CAPITAL LLC | FIRST TRUST EXCHANGE-TRADED FUND IV | 2,394,345 | 7.2% | EDGAR |
| SC 13G/A | 2014-09-10 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 405,583 | 10.0% | EDGAR |
| SC 13G | 2014-06-09 | CURIAN CAPITAL LLC | FIRST TRUST EXCHANGE-TRADED FUND IV | 4,654,872 | 16.0% | EDGAR |
| SC 13G | 2014-01-07 | FIRST TRUST PORTFOLIOS LP | FIRST TRUST EXCHANGE-TRADED FUND IV | 160,348 | 5.7% | EDGAR |