| SC 13G | 2015-01-21 | FIRST TRUST PORTFOLIOS LP | SPDR SERIES TRUST | 256,294 | 6.4% | EDGAR |
| SC 13G | 2015-01-16 | FIRST TRUST PORTFOLIOS LP | SPDR SERIES TRUST | 839,698 | 5.5% | EDGAR |
| SC 13G/A | 2015-01-14 | FIRST TRUST PORTFOLIOS LP | SPDR SERIES TRUST | 421,774 | 5.3% | EDGAR |
| SC 13G | 2015-01-12 | FMR LLC | SPDR SERIES TRUST | 6,134,603 | 10.1% | EDGAR |
| SC 13G | 2015-01-12 | Forward Management, LLC | SPDR SERIES TRUST | 1,856,242 | 6.7% | EDGAR |
| SC 13G/A | 2015-01-07 | FIRST TRUST PORTFOLIOS LP | SPDR SERIES TRUST | 69,298 | 2.1% | EDGAR |
| SC 13G/A | 2015-01-07 | FIRST TRUST PORTFOLIOS LP | SPDR SERIES TRUST | 145,982 | 2.4% | EDGAR |
| SC 13G/A | 2015-01-07 | FIRST TRUST PORTFOLIOS LP | SPDR SERIES TRUST | 140,934 | 2.3% | EDGAR |
| SC 13G/A | 2014-11-12 | Forward Management, LLC | SPDR SERIES TRUST | 1,740,743 | 4.3% | EDGAR |
| SC 13G/A | 2014-06-10 | FMR LLC | SPDR SERIES TRUST | 38 | 0.0% | EDGAR |
| SC 13G/A | 2014-06-06 | Forward Management, LLC | SPDR SERIES TRUST | 2,210,531 | 10.3% | EDGAR |
| SC 13G | 2014-05-12 | FMR LLC | SPDR SERIES TRUST | 1,269,237 | 11.4% | EDGAR |
| SC 13G/A | 2014-04-10 | FMR LLC | SPDR SERIES TRUST | 210,858 | 2.3% | EDGAR |
| SC 13G/A | 2014-04-09 | Forward Management, LLC | SPDR SERIES TRUST | 3,876,379 | 17.6% | EDGAR |
| SC 13G/A | 2014-03-07 | Forward Management, LLC | SPDR SERIES TRUST | 1,564,644 | 7.4% | EDGAR |
| SC 13G | 2014-02-14 | FMR LLC | SPDR SERIES TRUST | 884,658 | 6.2% | EDGAR |
| SC 13G | 2014-02-14 | FMR LLC | SPDR SERIES TRUST | 640,158 | 8.0% | EDGAR |
| SC 13G | 2014-02-14 | FMR LLC | SPDR SERIES TRUST | 4,338,795 | 6.1% | EDGAR |
| SC 13G | 2014-02-13 | Tortoise Investment Management, LLC | SPDR SERIES TRUST | 70,952 | 8.9% | EDGAR |
| SC 13G/A | 2014-02-11 | Forward Management, LLC | SPDR SERIES TRUST | 3,053,632 | 12.8% | EDGAR |