| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Oct 2023 | 18 Oct 2023 | 001-15751 |
| 4 | Open Document | Open Filing | 13 Jun 2023 | 09 Jun 2023 | 001-15751 | |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Jun 2022 | 09 Jun 2022 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 06 Jul 2021 | 01 Jul 2021 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 24 Mar 2021 | 22 Mar 2021 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Jul 2020 | 06 Jul 2020 | 001-15751 |
| 4 | Open Document | Open Filing | FORM 4 - | 17 Mar 2020 | 16 Mar 2020 | 001-15751 |
| 4 | Open Document | Open Filing | 03 Jul 2019 | 02 Jul 2019 | 001-15751 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jan 2019 | 03 Jan 2019 | 001-15751 |
| 4 | Open Document | Open Filing | 16 Oct 2018 | 12 Oct 2018 | 001-15751 | |
| 3 | Open Document | Open Filing | 16 Oct 2018 | 12 Oct 2018 | 001-15751 |