| Type | Description | Date | |
| 8-K | 8-K - Current report | April 26, 2016 | |
| 4 | 4 - Statement of changes in beneficial ownership of securities | April 20, 2016 | |
| SC 13G/A | SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals | April 19, 2016 | |
| 4 | 4 - Statement of changes in beneficial ownership of securities | March 2, 2016 | |
| 4 | 4 - Statement of changes in beneficial ownership of securities | March 2, 2016 | |
| 8-K | 8-K - Current report | February 23, 2016 | |
| 8-K | 8-K - Current report | February 22, 2016 | |
| 10-K | 10-K - Annual report [Section 13 and 15(d), not S-K Item 405] | February 18, 2016 | |
| 424B3 | 424B3 - Prospectus [Rule 424(b)(3)] | February 11, 2016 | |
| 8-K | 8-K - Current report | February 11, 2016 | |
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