| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 WM | 01 Sep 2022 | 30 Aug 2022 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 WM | 20 Oct 2021 | 18 Oct 2021 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 WM | 25 Nov 2020 | 23 Nov 2020 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 WM | 31 Aug 2020 | 27 Aug 2020 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Feb 2020 | 18 Feb 2020 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Aug 2018 | 27 Aug 2018 | 000-14602 |
| 4/A | Open Document | Open Filing | FORM 4/A | 06 Nov 2017 | 24 Aug 2017 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2017 | 24 Aug 2017 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Aug 2016 | 25 Aug 2016 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Oct 2015 | 15 Oct 2015 | 000-14602 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Sep 2014 | 19 Sep 2014 | 000-14602 |