| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2022 | 18 May 2022 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2022 | 01 Apr 2022 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2022 | 03 Jan 2022 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Oct 2021 | 01 Oct 2021 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2021 | 30 Jul 2021 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2021 | 19 May 2021 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2020 | 07 May 2020 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2019 | 15 May 2019 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2018 | 02 May 2018 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Apr 2017 | 26 Apr 2017 | 001-07882 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2016 | 12 May 2016 | 001-07882 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 May 2015 | 29 Apr 2015 | 001-07882 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2014 | 16 May 2014 | 001-07882 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2014 | 08 May 2014 | 001-07882 |