| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/12/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 02/07/20 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/04/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 4 | |
| 01/28/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 | |
| 01/27/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 01/22/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 01/22/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 59 | |
| 01/22/20 | SUPPL | Form SUPPL: Voluntary Supplemental Material by Foreign Issuers [Section 11(a)] | 61 | |
| 01/21/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 01/21/20 | SUPPL | Form SUPPL: Voluntary Supplemental Material by Foreign Issuers [Section 11(a)] | 61 |