| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | FORM 3 | 18 Apr 2022 | 08 Apr 2022 | 811-22716 |
| 3 | Open Document | Open Filing | FORM 3 | 18 Apr 2022 | 08 Apr 2022 | 811-22473 |
| 3/A | Open Document | Open Filing | FORM 3/A | 08 Jan 2020 | 01 Jan 2020 | 811-22958 |
| 3 | Open Document | Open Filing | FORM 3 | 07 Jan 2020 | 01 Jan 2020 | 811-05620 |
| 3 | Open Document | Open Filing | FORM 3 | 07 Jan 2020 | 01 Jan 2020 | 811-22608 |
| 3 | Open Document | Open Filing | FORM 3 | 07 Jan 2020 | 01 Jan 2020 | 811-22958 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Sep 2019 | 17 Sep 2019 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Sep 2019 | 30 Aug 2019 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2019 | 03 May 2019 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 May 2018 | 27 Apr 2018 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Sep 2017 | 08 Sep 2017 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2017 | 10 May 2017 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2017 | 27 Jan 2017 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Nov 2016 | 10 Nov 2016 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2016 | 11 May 2016 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2016 | 01 Feb 2016 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2015 | 09 Nov 2015 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 11 May 2015 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Nov 2014 | 14 Nov 2014 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2014 | 01 May 2014 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Sep 2013 | 21 Aug 2013 | 811-22301 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Sep 2013 | 21 Aug 2013 | 811-22302 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Sep 2013 | 21 Aug 2013 | 811-22300 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2013 | 01 May 2013 | 001-10254 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2012 | 31 May 2012 | 001-10254 |