| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 14 Mar 2022 | 10 Mar 2022 | 001-13219 | |
| 4 | Open Document | Open Filing | 04 Mar 2022 | 02 Mar 2022 | 001-13219 | |
| 4 | Open Document | Open Filing | 04 Mar 2021 | 02 Mar 2021 | 001-13219 | |
| 4 | Open Document | Open Filing | 14 Sep 2020 | 10 Sep 2020 | 001-13219 | |
| 4 | Open Document | Open Filing | 11 Aug 2020 | 10 Aug 2020 | 001-13219 | |
| 3 | Open Document | Open Filing | 05 Jun 2020 | 27 May 2020 | 001-13219 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Nov 2012 | 26 Nov 2012 | 001-35533 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 02 May 2012 | 02 May 2012 | 001-35533 |