| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2023 | 28 Feb 2023 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2023 | 21 Feb 2023 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Feb 2023 | 15 Feb 2023 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Mar 2022 | 25 Mar 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Mar 2022 | 07 Mar 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2022 | 28 Feb 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Feb 2022 | 15 Feb 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jan 2022 | 21 Jan 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Mar 2021 | 26 Mar 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2021 | 18 Mar 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2021 | 26 Feb 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2021 | 22 Feb 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Feb 2021 | 15 Feb 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Aug 2020 | 10 Aug 2020 | 000-20288 |
| 4/A | Open Document | Open Filing | FORM 4/A | 12 Mar 2020 | 27 Feb 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2020 | 28 Feb 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2020 | 27 Feb 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2020 | 24 Feb 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2020 | 21 Feb 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jan 2020 | 22 Jan 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jun 2019 | 11 Jun 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Mar 2019 | 27 Mar 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Mar 2019 | 25 Mar 2019 | 000-20288 |
| 4/A | Open Document | Open Filing | FORM 4/A | 14 Mar 2019 | 27 Feb 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2019 | 27 Feb 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2019 | 22 Feb 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Nov 2018 | 20 Nov 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jul 2018 | 05 Jul 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Mar 2018 | 23 Mar 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2018 | 28 Feb 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2018 | 28 Feb 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2018 | 26 Feb 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Feb 2018 | 23 Feb 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jan 2018 | 08 Jan 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jul 2017 | 03 Jul 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2017 | 24 Mar 2017 | 000-20288 |
| 4/A | Open Document | Open Filing | FORM 4/A | 09 Mar 2017 | 08 Mar 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2017 | 27 Feb 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2017 | 24 Feb 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2017 | 22 Feb 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2017 | 22 Feb 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jan 2017 | 06 Jan 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jul 2016 | 01 Jul 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Feb 2016 | 26 Feb 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2016 | 24 Feb 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2016 | 22 Feb 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2016 | 14 Jan 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2015 | 02 Jul 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Mar 2015 | 25 Mar 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2015 | 27 Feb 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Feb 2015 | 20 Feb 2015 | 000-20288 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 05 Feb 2015 | 31 Dec 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jan 2015 | 06 Jan 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jul 2014 | 01 Jul 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2014 | 26 Feb 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2014 | 21 Feb 2014 | 000-20288 |
| 5 | Open Document | Open Filing | FORM 5 | 07 Feb 2014 | 31 Dec 2013 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2014 | 09 Jan 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FROM 4 | 17 Jul 2013 | 15 Jul 2013 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2013 | 27 Feb 2013 | 000-20288 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2013 | 31 Dec 2012 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2013 | 03 Jan 2013 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2012 | 03 Jul 2012 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2012 | 22 Feb 2012 | 000-20288 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2012 | 31 Dec 2011 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2012 | 05 Jan 2012 | 000-20288 |