| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/10/20 | 8-K | Form 8-K: Current report | 7 | |
| 01/09/20 | SC 13D/A | Form SC 13D/A: General Statement of Acquisition of Beneficial Ownership | 5 | |
| 01/08/20 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/07/20 | 8-K | Form 8-K: Current report | 3 | |
| 12/27/19 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 12/26/19 | 8-K | Form 8-K: Current report | 3 | |
| 12/23/19 | DEF 14A | Form DEF 14A: Definitive proxy statements | 29 | |
| 12/18/19 | 8-K | Form 8-K: Current report | 3 | |
| 12/13/19 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | 32 | |
| 12/10/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |