| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 07/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 07/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 07/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 07/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 06/11/18 | 8-K/A | Form 8-K/A: Current report filing | 6 | |
| 05/30/18 | 8-K | Form 8-K: Current report filing | 255 | |
| 05/29/18 | S-8 | Form S-8: Initial registration statement for securities to be offered to employees pursuant to employee benefit plans | 9 | |
| 05/29/18 | 8-K | Form 8-K: Current report filing | 247 | |
| 05/23/18 | SD | Form SD: Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1) | 36 | |
| 05/22/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |