| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 May 2022 | 19 May 2022 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2022 | 18 Feb 2022 | 001-39696 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 May 2021 | 20 May 2021 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Apr 2021 | 27 Apr 2021 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Apr 2021 | 19 Apr 2021 | 001-38807 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Apr 2021 | 14 Apr 2021 | 001-39044 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 Mar 2021 | 16 Mar 2021 | 001-38807 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Aug 2020 | 06 Aug 2020 | 000-55939 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jun 2020 | 17 Jun 2020 | 000-55939 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2020 | 20 May 2020 | 001-39044 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Mar 2020 | 12 Mar 2020 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2020 | 27 Feb 2020 | 001-39231 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 27 Feb 2020 | 27 Feb 2020 | 001-39231 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Sep 2019 | 17 Sep 2019 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Sep 2019 | 29 Mar 2019 | 001-39044 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Sep 2019 | 12 Sep 2019 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Oct 2017 | 08 Oct 2017 | 001-37833 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Aug 2016 | 24 Aug 2016 | 001-37833 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 19 Jul 2016 | 19 Jul 2016 | 001-37833 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Oct 2014 | 27 Oct 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Oct 2014 | 03 Oct 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2014 | 24 Sep 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Aug 2014 | 04 Aug 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Mar 2014 | 28 Feb 2014 | 000-27756 |
| 5 | Open Document | Open Filing | FORM 5 | 14 Feb 2014 | 31 Dec 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Feb 2014 | 06 Feb 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Feb 2014 | 03 Feb 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Jan 2014 | 29 Jan 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Nov 2013 | 04 Nov 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Oct 2013 | 28 Oct 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2013 | 24 Sep 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Sep 2013 | 13 Sep 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Aug 2013 | 05 Aug 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2013 | 02 Aug 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Aug 2013 | 30 Jul 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Jul 2013 | 12 Jul 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jul 2013 | 01 Jul 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 01 May 2013 | 29 Apr 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Mar 2013 | 08 Mar 2013 | 000-27756 |
| 5 | Open Document | Open Filing | FORM 5 | 15 Feb 2013 | 31 Dec 2012 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Feb 2013 | 06 Feb 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2013 | 04 Feb 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Jan 2013 | 28 Jan 2013 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2012 | 27 Jul 2012 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jul 2012 | 09 Jul 2012 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2012 | 06 Jun 2012 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2012 | 17 Feb 2012 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2012 | 03 Feb 2012 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2012 | 27 Jan 2012 | 000-27756 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jan 2012 | 10 Jan 2012 | 000-27756 |