| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/13/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/10/18 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 04/06/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/29/18 | S-8 | Form S-8: Securities to be offered to employees in employee benefit plans | 12 |
