| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 14 Aug 2023 | 10 Aug 2023 | 001-14854 | |
| 4 | Open Document | Open Filing | 24 Mar 2023 | 22 Mar 2023 | 001-14854 | |
| 4 | Open Document | Open Filing | 08 Jun 2022 | 08 Jun 2022 | 001-14854 | |
| 4 | Open Document | Open Filing | 10 May 2022 | 09 May 2022 | 001-14854 | |
| 4 | Open Document | Open Filing | 31 Mar 2022 | 29 Mar 2022 | 001-14854 | |
| 4 | Open Document | Open Filing | 01 Mar 2022 | 28 Feb 2022 | 001-14854 | |
| 4 | Open Document | Open Filing | 30 Aug 2021 | 27 Aug 2021 | 001-14854 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 May 2021 | 19 May 2021 | 001-14854 |
| 4 | Open Document | Open Filing | 25 Nov 2020 | 24 Nov 2020 | 001-14854 | |
| 4 | Open Document | Open Filing | 02 Jun 2020 | 29 May 2020 | 001-14854 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Jun 2019 | 31 May 2019 | 001-14854 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 May 2018 | 25 May 2018 | 001-14854 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 May 2017 | 28 Apr 2017 | 001-14854 |
| 4 | Open Document | Open Filing | 02 Feb 2016 | 29 Jan 2016 | 001-14854 | |
| 3 | Open Document | Open Filing | 28 May 2015 | 20 May 2015 | 001-14854 |