| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/13/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/09/18 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/06/18 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 6 | |
| 01/19/18 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 01/16/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/11/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/08/17 | 8-K | Form 8-K: Current report | 158 | |
| 12/07/17 | SC 13D | Form SC 13D: General Statement of Acquisition of Beneficial Ownership | 10 | |
| 12/01/17 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 6 | |
| 11/13/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |
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