| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2023 | 09 May 2023 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Aug 2022 | 29 Jul 2022 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2022 | 10 May 2022 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Dec 2021 | 30 Nov 2021 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jun 2021 | 15 Jun 2021 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2021 | 13 May 2021 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2021 | 11 May 2021 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2021 | 04 May 2021 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2021 | 15 Mar 2021 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Dec 2020 | 15 Dec 2020 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Dec 2020 | 09 Dec 2020 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Sep 2020 | 15 Sep 2020 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jun 2020 | 15 Jun 2020 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2020 | 14 May 2020 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2020 | 12 May 2020 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 06 May 2020 | 04 May 2020 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2020 | 13 Mar 2020 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Dec 2019 | 13 Dec 2019 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Sep 2019 | 13 Sep 2019 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jun 2019 | 14 Jun 2019 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 13 May 2019 | 09 May 2019 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2019 | 06 May 2019 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2019 | 15 Mar 2019 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2018 | 15 Dec 2018 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Sep 2018 | 17 Sep 2018 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Jun 2018 | 15 Jun 2018 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2018 | 09 May 2018 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2018 | 07 May 2018 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2018 | 03 May 2018 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2018 | 15 Mar 2018 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Dec 2017 | 15 Dec 2017 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Sep 2017 | 15 Sep 2017 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Jun 2017 | 15 Jun 2017 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2017 | 03 May 2017 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 08 May 2017 | 04 May 2017 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2017 | 17 Jan 2017 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2016 | 08 Dec 2016 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 26 Aug 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2016 | 14 Jul 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2016 | 12 May 2016 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2016 | 05 May 2016 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2016 | 02 May 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2016 | 26 Apr 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Apr 2016 | 13 Apr 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2016 | 31 Mar 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2016 | 13 Jan 2016 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2016 | 08 Jan 2016 | 000-50404 |
| 4/A | Open Document | Open Filing | FORM 4/A | 15 Dec 2015 | 14 Dec 2015 | 001-06732 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Dec 2015 | 14 Dec 2015 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2015 | 14 Jul 2015 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2015 | 12 May 2015 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 08 May 2015 | 07 May 2015 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2015 | 14 Jan 2015 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jan 2015 | 09 Jan 2015 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2014 | 14 Jul 2014 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jul 2014 | 08 Jul 2014 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2014 | 12 May 2014 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2014 | 08 May 2014 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2014 | 10 Jan 2014 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Dec 2013 | 11 Dec 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2013 | 18 Jul 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2013 | 15 Jul 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2013 | 17 May 2013 | 000-50404 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2013 | 16 May 2013 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2013 | 13 May 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2013 | 07 May 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2013 | 16 Jan 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2013 | 14 Jan 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2013 | 11 Jan 2013 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2012 | 15 Oct 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Sep 2012 | 10 Sep 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Aug 2012 | 17 Aug 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2012 | 07 Aug 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2012 | 16 Jul 2012 | 000-50404 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2012 | 19 Jun 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2012 | 19 Jun 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2012 | 14 May 2012 | 000-50404 |
| 4 | Open Document | Open Filing | MAIN DOCUMENT DESCRIPTION | 11 May 2012 | 09 May 2012 | 001-06732 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2012 | 01 May 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2012 | 27 Apr 2012 | 000-50404 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jan 2012 | 13 Jan 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jan 2012 | 13 Jan 2012 | 000-50404 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2012 | 11 Jan 2012 | 000-50404 |