| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 12 Dec 2024 | 10 Dec 2024 | 001-06227 | |
| 4 | Open Document | Open Filing | 14 Dec 2023 | 12 Dec 2023 | 001-06227 | |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2022 | 09 Dec 2022 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2021 | 10 Dec 2021 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Dec 2020 | 11 Dec 2020 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Dec 2019 | 13 Dec 2019 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Oct 2019 | 27 Sep 2019 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2018 | 11 Dec 2018 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Dec 2018 | 07 Dec 2018 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Aug 2018 | 08 Aug 2018 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Dec 2017 | 22 Dec 2017 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2017 | 15 Dec 2017 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2016 | 09 Dec 2016 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Nov 2016 | 27 Nov 2016 | 001-06227 |
| 4/A | Open Document | Open Filing | FORM 4/A | 18 Dec 2015 | 11 Dec 2015 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2015 | 11 Dec 2015 | 001-06227 |
| 4/A | Open Document | Open Filing | FORM 4/A | 04 Dec 2015 | 15 Dec 2014 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Jul 2015 | 23 Jul 2015 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Dec 2014 | 12 Dec 2014 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2013 | 27 Nov 2013 | 001-06227 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jul 2012 | 23 Jul 2012 | 001-06227 |