| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/14/20 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/14/20 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/14/20 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 11 | |
| 02/13/20 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/12/20 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/10/20 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/05/20 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 01/28/20 | 8-K | Form 8-K: Current report | 22 | |
| 12/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/03/19 | 8-K | Form 8-K: Current report | 9 |