| Type | Filed | |
|---|---|---|
| SC 13G/A | 2021-02-16 | EDGAR |
| SC 13G/A | 2019-02-14 | EDGAR |
| SC 13G/A | 2018-02-13 | EDGAR |
| SC 13G | 2017-02-14 | EDGAR |
| SC 13G | 2017-02-14 | EDGAR |
| SC 13G/A | 2016-02-16 | EDGAR |
| SC 13G/A | 2016-02-12 | EDGAR |
| SC 13G | 2015-02-17 | EDGAR |
| SC 13G/A | 2015-02-13 | EDGAR |
| SC 13G/A | 2015-02-06 | EDGAR |
| SC 13G/A | 2014-02-07 | EDGAR |
| SC 13G/A | 2014-02-06 | EDGAR |
| SC 13G | 2014-01-31 | EDGAR |
| SC 13G | 2013-02-13 | EDGAR |
| SC 13G | 2013-02-13 | EDGAR |
| SC 13D/A | 2013-01-17 | EDGAR |
| SC 13G | 2012-04-13 | EDGAR |
| SC 13D/A | 2012-04-09 | EDGAR |
| SC 13G | 2012-03-26 | EDGAR |
| 4 | 2011-10-12 | EDGAR |