| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 02 Jul 2021 | 30 Jun 2021 | 001-10986 | |
| 4 | Open Document | Open Filing | 02 Jul 2020 | 30 Jun 2020 | 001-10986 | |
| 4 | Open Document | Open Filing | 20 May 2020 | 20 May 2020 | 001-10986 | |
| 4 | Open Document | Open Filing | 20 May 2020 | 14 May 2020 | 001-10986 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Nov 2019 | 22 Nov 2019 | 001-10986 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Aug 2019 | 20 Aug 2019 | 001-10986 |
| 4 | Open Document | Open Filing | 17 Jun 2019 | 13 Jun 2019 | 001-10986 | |
| 4 | Open Document | Open Filing | FORM 4 | 05 Mar 2019 | 01 Mar 2019 | 001-10986 |
| 3 | Open Document | Open Filing | FORM 3 | 05 Mar 2019 | 01 Mar 2019 | 001-10986 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Oct 2018 | 08 Oct 2018 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2018 | 16 May 2018 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Sep 2017 | 17 Sep 2017 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Aug 2017 | 28 Aug 2017 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2017 | 15 Mar 2017 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jun 2016 | 15 Jun 2016 | 001-35569 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2014 | 26 Feb 2014 | 001-35569 |
| 3/A | Open Document | Open Filing | FORM 3/A | 24 May 2013 | 04 Sep 2012 | 001-35569 |
| 3 | Open Document | Open Filing | FORM 3 | 24 May 2013 | 04 Sep 2012 | 001-35569 |