| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 Feb 2023 | 17 Feb 2023 | 001-11848 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jan 2023 | 19 Jan 2023 | 001-11848 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2022 | 22 Mar 2022 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 11 Mar 2021 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2020 | 14 May 2020 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2020 | 06 Mar 2020 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2019 | 14 Nov 2019 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2019 | 02 May 2019 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2019 | 01 Mar 2019 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2018 | 30 Nov 2018 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2018 | 03 May 2018 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2018 | 02 Mar 2018 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2017 | 04 May 2017 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2017 | 03 Mar 2017 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2016 | 26 Aug 2016 | 001-11848 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jul 2016 | 11 Jul 2016 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2016 | 10 May 2016 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2016 | 04 Mar 2016 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2015 | 01 Dec 2015 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2015 | 07 May 2015 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2015 | 06 Mar 2015 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2014 | 08 May 2014 | 001-11848 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2014 | 07 Mar 2014 | 001-11848 |