| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 25 May 2021 | 23 May 2021 | 001-14157 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2021 | 22 Feb 2021 | 001-14157 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2020 | 21 May 2020 | 001-14157 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Feb 2020 | 18 Feb 2020 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2019 | 19 Jun 2019 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2019 | 22 May 2019 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2019 | 11 May 2019 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2019 | 06 May 2019 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2019 | 19 Feb 2019 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2018 | 23 May 2018 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2018 | 11 May 2018 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2018 | 11 May 2018 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Mar 2018 | 28 Mar 2018 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2017 | 24 May 2017 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2017 | 16 May 2017 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2016 | 15 Aug 2016 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jun 2016 | 28 Jun 2016 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2016 | 10 May 2016 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2015 | 11 May 2015 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2014 | 01 Dec 2014 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2014 | 16 May 2014 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2013 | 02 Dec 2013 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2013 | 10 May 2013 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Dec 2012 | 26 Dec 2012 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2012 | 15 Dec 2012 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2012 | 16 May 2012 | 001-14157 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2012 | 24 Jan 2012 | 001-14157 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2012 | 24 Jan 2012 | 001-14157 |