| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 26 May 2021 | 26 May 2021 | 000-31127 | |
| 4 | Open Document | Open Filing | 03 Mar 2021 | 01 Mar 2021 | 000-31127 | |
| 4/A | Open Document | Open Filing | 03 Mar 2021 | 21 Oct 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 30 Nov 2020 | 17 Nov 2020 | 000-31127 | |
| 4/A | Open Document | Open Filing | 26 Oct 2020 | 21 Oct 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 22 Oct 2020 | 21 Oct 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 08 Oct 2020 | 07 Oct 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 08 Sep 2020 | 08 Sep 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 10 Aug 2020 | 06 Aug 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 08 May 2020 | 07 May 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 02 Apr 2020 | 01 Apr 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 03 Mar 2020 | 01 Mar 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 06 Feb 2020 | 06 Feb 2020 | 000-31127 | |
| 4 | Open Document | Open Filing | 13 Dec 2019 | 07 Nov 2019 | 000-31127 | |
| 4 | Open Document | Open Filing | 04 Oct 2019 | 04 Oct 2019 | 000-31127 | |
| 4 | Open Document | Open Filing | 02 Apr 2019 | 01 Apr 2019 | 000-31127 | |
| 4 | Open Document | Open Filing | 05 Mar 2019 | 01 Mar 2019 | 000-31127 | |
| 4/A | Open Document | Open Filing | 08 Feb 2019 | 01 Apr 2018 | 000-31127 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jun 2018 | 04 Jun 2018 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Apr 2018 | 01 Apr 2018 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Mar 2018 | 01 Mar 2018 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Feb 2018 | 01 Feb 2018 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Dec 2017 | 22 Nov 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Aug 2017 | 22 Aug 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 May 2017 | 15 May 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2017 | 01 May 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Apr 2017 | 17 Apr 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Apr 2017 | 10 Apr 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Apr 2017 | 01 Apr 2017 | 000-31127 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Mar 2017 | 08 Mar 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Mar 2017 | 08 Mar 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Mar 2017 | 07 Mar 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Mar 2017 | 01 Mar 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Feb 2017 | 01 Feb 2017 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Jun 2016 | 07 Jun 2016 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2016 | 01 May 2016 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Mar 2016 | 18 Mar 2016 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Mar 2016 | 15 Mar 2016 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Mar 2016 | 01 Mar 2016 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Feb 2016 | 01 Feb 2016 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Aug 2015 | 24 Aug 2015 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 May 2015 | 05 May 2015 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 May 2015 | 01 May 2015 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 Feb 2015 | 25 Feb 2015 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Feb 2015 | 01 Feb 2015 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Sep 2014 | 04 Sep 2014 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 May 2014 | 07 May 2014 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 May 2014 | 01 May 2014 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Mar 2014 | 10 Mar 2014 | 000-31127 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Mar 2014 | 27 Feb 2014 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2013 | 14 May 2013 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2013 | 09 May 2013 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2013 | 06 May 2013 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2013 | 01 May 2013 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2012 | 21 Aug 2012 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 May 2012 | 24 May 2012 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2012 | 18 May 2012 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2012 | 15 May 2012 | 000-31127 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2012 | 01 May 2012 | 000-31127 |