| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 27 Mar 2023 | 24 Mar 2023 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2023 | 01 Mar 2023 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2022 | 01 Mar 2022 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2021 | 01 Mar 2021 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2020 | 15 May 2020 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Apr 2020 | 16 Apr 2020 | 001-16751 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Apr 2020 | 03 Apr 2020 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2020 | 02 Mar 2020 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Oct 2019 | 03 Oct 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2019 | 03 Apr 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2019 | 01 Mar 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2019 | 04 Feb 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2019 | 18 Jan 2019 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2018 | 03 Oct 2018 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2018 | 03 Apr 2018 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2018 | 01 Mar 2018 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2018 | 04 Jan 2018 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2017 | 03 Oct 2017 | 001-16751 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2017 | 03 Apr 2017 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2017 | 03 Apr 2017 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2017 | 03 Mar 2017 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2017 | 01 Mar 2017 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Oct 2016 | 03 Oct 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2016 | 12 Aug 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2016 | 01 Aug 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2016 | 01 Jul 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jun 2016 | 03 Jun 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2016 | 01 Jun 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2016 | 02 May 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2016 | 14 Apr 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2016 | 11 Mar 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2016 | 03 Mar 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2016 | 01 Mar 2016 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jun 2015 | 03 Jun 2015 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2015 | 13 Apr 2015 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2015 | 02 Mar 2015 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2014 | 20 Aug 2014 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jun 2014 | 03 Jun 2014 | 001-16751 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2014 | 03 Mar 2014 | 001-16751 |