| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 18 Dec 2024 | 18 Dec 2024 | 000-50350 |
| 144 | Open Document | Open Filing | 18 Dec 2024 | |||
| 4 | Open Document | Open Filing | 4 | 12 Nov 2024 | 11 Nov 2024 | 000-50350 |
| 144 | Open Document | Open Filing | 12 Nov 2024 | |||
| 4 | Open Document | Open Filing | 4 | 13 Sep 2024 | 12 Sep 2024 | 000-50350 |
| 4 | Open Document | Open Filing | 4 | 31 May 2024 | 30 May 2024 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jun 2023 | 01 Jun 2023 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2022 | 02 Jun 2022 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Jun 2021 | 08 Jun 2021 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2021 | 27 May 2021 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Jan 2021 | 27 Jan 2021 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Dec 2020 | 28 Dec 2020 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Oct 2020 | 20 Oct 2020 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Jul 2020 | 21 Jul 2020 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 May 2020 | 28 May 2020 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 31 May 2019 | 30 May 2019 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jun 2018 | 31 May 2018 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2017 | 05 Jun 2017 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jun 2017 | 01 Jun 2017 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Dec 2016 | 23 Dec 2016 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2016 | 03 Jun 2016 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Dec 2015 | 23 Dec 2015 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Dec 2015 | 28 Dec 2015 | 000-16617 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2015 | 21 Aug 2015 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2015 | 02 Jun 2015 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 27 May 2015 | 22 May 2015 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2015 | 20 May 2015 | 000-22874 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2015 | 13 May 2015 | 000-16617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 11 May 2015 | 000-16617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2015 | 30 Apr 2015 | 000-16617 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2015 | 20 Feb 2015 | 000-22874 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 23 Dec 2014 | 22 Dec 2014 | 000-50350 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Nov 2014 | 20 Nov 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Sep 2014 | 25 Sep 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Aug 2014 | 22 Aug 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Aug 2014 | 20 Aug 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Aug 2014 | 15 Aug 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 27 May 2014 | 22 May 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2014 | 15 May 2014 | 000-22874 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2014 | 12 May 2014 | 000-16617 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2014 | 22 Feb 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Feb 2014 | 15 Feb 2014 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Nov 2013 | 22 Nov 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Nov 2013 | 15 Nov 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Oct 2013 | 21 Oct 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Sep 2013 | 25 Sep 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Sep 2013 | 09 Sep 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Aug 2013 | 22 Aug 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Aug 2013 | 20 Aug 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Aug 2013 | 15 Aug 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2013 | 15 May 2013 | 000-22874 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2013 | 13 May 2013 | 000-16617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2013 | 06 May 2013 | 000-16617 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Feb 2013 | 15 Feb 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Feb 2013 | 14 Feb 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Feb 2013 | 31 Jan 2013 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Nov 2012 | 15 Nov 2012 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Sep 2012 | 25 Sep 2012 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Aug 2012 | 22 Aug 2012 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Aug 2012 | 15 Aug 2012 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2012 | 15 May 2012 | 000-22874 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2012 | 08 May 2012 | 000-16617 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Mar 2012 | 27 Mar 2012 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2012 | 24 Feb 2012 | 000-22874 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Feb 2012 | 15 Feb 2012 | 000-22874 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jan 2012 | 26 Jan 2012 | 000-16617 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2012 | 26 Jan 2012 | 000-16617 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2012 | 01 Jan 2012 | 000-22874 |