| SC 13G/A | 2022-02-02 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 0 | 0.0% | EDGAR |
| SC 13G/A | 2021-01-22 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 260,841 | 7.9% | EDGAR |
| SC 13G/A | 2020-12-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 268,974 | 7.7% | EDGAR |
| SC 13G/A | 2020-10-06 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 540,145 | 13.8% | EDGAR |
| SC 13G/A | 2020-09-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 676,320 | 8.6% | EDGAR |
| SC 13G/A | 2020-08-07 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 704,287 | 15.0% | EDGAR |
| SC 13G/A | 2020-06-05 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 1,330,379 | 21.8% | EDGAR |
| SC 13G/A | 2020-03-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 1,684,687 | 29.6% | EDGAR |
| SC 13G/A | 2020-01-08 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 2,619,394 | 16.7% | EDGAR |
| SC 13G/A | 2019-10-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 3,539,919 | 22.7% | EDGAR |
| SC 13G/A | 2019-09-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 3,734,806 | 28.1% | EDGAR |
| SC 13G/A | 2019-08-09 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 3,838,908 | 20.9% | EDGAR |
| SC 13G/A | 2019-06-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 4,597,005 | 28.7% | EDGAR |
| SC 13G/A | 2019-05-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 4,671,762 | 22.1% | EDGAR |
| SC 13G/A | 2019-03-08 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 4,863,421 | 16.4% | EDGAR |
| SC 13G/A | 2019-01-10 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 5,264,686 | 24.3% | EDGAR |
| SC 13G/A | 2018-01-16 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 4,834,403 | 15.6% | EDGAR |
| SC 13G/A | 2017-01-13 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 3,543,582 | 14.0% | EDGAR |
| SC 13G/A | 2016-01-14 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 2,432,834 | 14.9% | EDGAR |
| SC 13G/A | 2015-02-03 | FIRST TRUST PORTFOLIOS LP | Highland Funds I | 2,185,766 | 13.5% | EDGAR |