| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/01/19 | 3 | Form 3: Initial statement of beneficial ownership of securities | 1 | |
| 03/01/19 | SC 13D | Form SC 13D: General Statement of Acquisition of Beneficial Ownership | 5 | |
| 02/22/19 | 8-K | Form 8-K: Current report | 29 | |
| 02/11/19 | 8-K | Form 8-K: Current report | 16 | |
| 01/28/19 | 8-K | Form 8-K: Current report | 3 | |
| 01/10/19 | 8-K | Form 8-K: Current report | 24 | |
| 12/28/18 | 8-K | Form 8-K: Current report | 3 | |
| 12/19/18 | 8-K | Form 8-K: Current report | 3 | |
| 11/26/18 | SC 13D/A | Form SC 13D/A: General Statement of Acquisition of Beneficial Ownership | 4 | |
| 11/23/18 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 8 |