| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 04 Oct 2022 | 03 Oct 2022 | 001-35727 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Sep 2022 | 01 Sep 2022 | 001-35727 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2022 | 01 Aug 2022 | 001-35727 |
| 3 | Open Document | Open Filing | FORM 3 | 27 Jun 2022 | 27 Jun 2022 | 001-35727 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2021 | 13 Aug 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2021 | 16 Jun 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2021 | 18 May 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2021 | 16 May 2021 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2021 | 03 Apr 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2020 | 17 Nov 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Aug 2020 | 18 Aug 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2020 | 16 Jun 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2020 | 16 May 2020 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2020 | 28 Mar 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2019 | 18 Nov 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jun 2019 | 17 Jun 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2019 | 16 May 2019 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 30 Mar 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2018 | 18 Jun 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2018 | 21 May 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2018 | 16 May 2018 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2018 | 31 Mar 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2017 | 16 Jun 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2017 | 23 May 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2017 | 16 May 2017 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2017 | 01 Apr 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Aug 2016 | 19 Aug 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2016 | 16 Jun 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2016 | 16 May 2016 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2016 | 02 Apr 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2015 | 16 Nov 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2015 | 05 Nov 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2015 | 16 Jun 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2015 | 16 May 2015 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 28 Mar 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2015 | 29 Jan 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2014 | 06 Nov 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2014 | 16 Jun 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2014 | 16 May 2014 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2014 | 29 Mar 2014 | 000-17948 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2014 | 16 Feb 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 16 Feb 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2014 | 07 Feb 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2013 | 17 Jun 2013 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2013 | 30 May 2013 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2013 | 16 May 2013 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2013 | 30 Mar 2013 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2013 | 05 Feb 2013 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2012 | 16 Jun 2012 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2012 | 16 May 2012 | 000-17948 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2012 | 31 Mar 2012 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2012 | 16 Feb 2012 | 000-17948 |