| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2024 | 01 Oct 2024 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Oct 2023 | 01 Oct 2023 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Oct 2022 | 01 Oct 2022 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2022 | 28 Feb 2022 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Feb 2022 | 09 Feb 2022 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Oct 2021 | 01 Oct 2021 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jun 2021 | 08 Jun 2021 | 001-37939 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2021 | 18 May 2021 | 001-37939 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Apr 2021 | 05 Apr 2021 | 000-31051 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 12 Feb 2021 | 31 Dec 2020 | 001-37939 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Oct 2020 | 01 Oct 2020 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2019 | 10 Dec 2019 | 000-31051 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Nov 2019 | 07 Nov 2019 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Oct 2019 | 21 Oct 2019 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Oct 2019 | 15 Oct 2019 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Oct 2019 | 02 Oct 2019 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jul 2019 | 08 Jul 2019 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Jun 2019 | 20 Jun 2019 | 000-31051 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 May 2019 | 09 May 2019 | 001-37939 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Apr 2019 | 03 Apr 2019 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2019 | 02 Jan 2019 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Dec 2018 | 19 Dec 2018 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2018 | 12 Dec 2018 | 000-31051 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Nov 2018 | 09 Nov 2018 | 000-18492 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Oct 2018 | 16 Oct 2018 | 001-37939 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2018 | 01 Oct 2018 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Aug 2018 | 29 Aug 2018 | 000-31051 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jul 2018 | 05 Jul 2018 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jun 2018 | 06 Jun 2018 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 30 May 2018 | 25 May 2018 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2018 | 16 May 2018 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Apr 2018 | 05 Apr 2018 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jan 2018 | 05 Jan 2018 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2017 | 12 Dec 2017 | 000-31051 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Nov 2017 | 09 Nov 2017 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Oct 2017 | 03 Oct 2017 | 001-35918 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 30 Aug 2017 | 29 Aug 2017 | 001-37939 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Jul 2017 | 06 Jul 2017 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Apr 2017 | 06 Apr 2017 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2017 | 27 Feb 2017 | 000-31051 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jan 2017 | 09 Jan 2017 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Nov 2016 | 10 Nov 2016 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Oct 2016 | 10 Oct 2016 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Oct 2016 | 29 Sep 2016 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Sep 2016 | 12 Sep 2016 | 001-12629 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jul 2016 | 01 Jul 2016 | 001-35918 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Apr 2016 | 01 Apr 2016 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Mar 2016 | 26 Feb 2016 | 000-31051 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Jan 2016 | 26 Jan 2016 | 000-27239 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 28 Jan 2016 | 26 Jan 2016 | 000-27239 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Jan 2016 | 07 Jan 2016 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jan 2016 | 04 Jan 2016 | 001-07872 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Dec 2015 | 22 Dec 2015 | 000-18492 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Dec 2015 | 14 Dec 2015 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2015 | 11 Dec 2015 | 000-31051 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Oct 2015 | 05 Oct 2015 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Sep 2015 | 16 Sep 2015 | 001-07872 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Jul 2015 | 02 Jul 2015 | 001-35918 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Apr 2015 | 01 Apr 2015 | 001-35918 |
| 3 | Open Document | Open Filing | FORM 3 | 04 Feb 2015 | 04 Feb 2015 | 000-31051 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Jan 2015 | 07 Jan 2015 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2014 | 13 Nov 2014 | 000-18492 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Oct 2014 | 07 Oct 2014 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Sep 2014 | 16 Sep 2014 | 001-07872 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Jul 2014 | 15 Jul 2014 | 001-12629 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Jul 2014 | 11 Jul 2014 | 001-35918 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Apr 2014 | 02 Apr 2014 | 001-35918 |
| 4 | Open Document | Open Filing | MAIN DOCUMENT DESCRIPTION | 31 Jan 2014 | 12 Sep 2013 | 001-07872 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jan 2014 | 03 Jan 2014 | 001-35918 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Nov 2013 | 25 Nov 2013 | 000-18492 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Oct 2013 | 15 Oct 2013 | 001-12629 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Oct 2013 | 15 Oct 2013 | 000-22996 |
| 3 | Open Document | Open Filing | FORM 3 | 17 Oct 2013 | 15 Oct 2013 | 001-12629 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Oct 2013 | 07 Oct 2013 | 001-35918 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jul 2013 | 05 Jul 2013 | 001-35918 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Apr 2013 | 08 Apr 2013 | 000-27083 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jan 2013 | 03 Jan 2013 | 000-27083 |
| 4 | Open Document | Open Filing | 4 | 19 Nov 2012 | 15 Nov 2012 | 000-18492 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Nov 2012 | 31 Oct 2012 | 000-22996 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Oct 2012 | 02 Oct 2012 | 000-27083 |
| 4 | Open Document | Open Filing | MAIN DOCUMENT DESCRIPTION | 28 Sep 2012 | 14 Sep 2012 | 001-07872 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Jul 2012 | 11 Jul 2012 | 000-27083 |
| 4 | Open Document | Open Filing | 4 | 19 Jun 2012 | 15 Jun 2012 | 000-18492 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Apr 2012 | 16 Apr 2012 | 000-27083 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Jan 2012 | 10 Jan 2012 | 000-27083 |