| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2021 | 16 Jun 2021 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2021 | 04 Mar 2021 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2021 | 15 Feb 2021 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2021 | 10 Feb 2021 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jun 2020 | 03 Jun 2020 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2020 | 20 Mar 2020 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 04 Mar 2020 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2020 | 15 Feb 2020 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2019 | 04 Mar 2019 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2019 | 22 Feb 2019 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2019 | 15 Feb 2019 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2019 | 09 Feb 2019 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2018 | 15 Aug 2018 | 001-12421 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2018 | 08 Mar 2018 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2018 | 08 Mar 2018 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2018 | 02 Mar 2018 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2018 | 28 Feb 2018 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Nov 2017 | 15 Nov 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2017 | 31 Aug 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jun 2017 | 28 Jun 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2017 | 02 Mar 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2017 | 27 Feb 2017 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2016 | 08 Mar 2016 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2016 | 02 Mar 2016 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Dec 2015 | 18 Dec 2015 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2015 | 10 Mar 2015 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2015 | 02 Mar 2015 | 001-12421 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2015 | 31 Dec 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Dec 2014 | 17 Dec 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Dec 2014 | 26 Nov 2014 | 001-12421 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2014 | 12 May 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2014 | 12 May 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2014 | 12 May 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2014 | 31 Mar 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2014 | 13 Mar 2014 | 001-12421 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2014 | 02 Mar 2014 | 001-12421 |