| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 25 May 2021 | 25 May 2021 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Apr 2021 | 13 Apr 2021 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jan 2021 | 07 Jan 2021 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Oct 2020 | 09 Oct 2020 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jul 2020 | 08 Jul 2020 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2020 | 20 May 2020 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Apr 2020 | 15 Apr 2020 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Jan 2020 | 14 Jan 2020 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Oct 2019 | 11 Oct 2019 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Oct 2019 | 03 Oct 2019 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jul 2019 | 11 Jul 2019 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2019 | 22 May 2019 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Apr 2019 | 22 Apr 2019 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jan 2019 | 09 Jan 2019 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Oct 2018 | 10 Oct 2018 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Oct 2018 | 05 Oct 2018 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jul 2018 | 10 Jul 2018 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 23 May 2018 | 23 May 2018 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Apr 2018 | 18 Apr 2018 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jan 2018 | 10 Jan 2018 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Oct 2017 | 10 Oct 2017 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Oct 2017 | 05 Oct 2017 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jul 2017 | 12 Jul 2017 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 31 May 2017 | 31 May 2017 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Oct 2016 | 05 Oct 2016 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2016 | 25 May 2016 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Oct 2015 | 05 Oct 2015 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 28 May 2015 | 27 May 2015 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Oct 2014 | 06 Oct 2014 | 001-16533 |
| 4 | Open Document | Open Filing | FORM 4 | 29 May 2014 | 28 May 2014 | 001-16533 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Oct 2013 | 07 Oct 2013 | 001-16533 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2013 | 22 May 2013 | 001-16533 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Oct 2012 | 05 Oct 2012 | 001-16533 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2012 | 16 May 2012 | 001-16533 |