| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Mar 2022 | 02 Mar 2022 | 000-11412 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Mar 2021 | 23 Mar 2021 | 000-11412 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Mar 2020 | 04 Mar 2020 | 000-11412 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Mar 2019 | 06 Mar 2019 | 000-11412 |
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2018 | 11 May 2018 | 000-11412 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Mar 2017 | 17 Mar 2017 | 000-11412 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Nov 2015 | 17 Nov 2015 | 000-11412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2015 | 09 Apr 2015 | 000-11412 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2015 | 09 Apr 2015 | 000-11412 |