| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A | 10 Jan 2022 | 31 Dec 2021 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2022 | 31 Dec 2021 | 001-13471 |
| 4/A | Open Document | Open Filing | FORM 4/A | 09 Sep 2021 | 10 Aug 2021 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Sep 2021 | 10 Aug 2021 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2021 | 13 May 2021 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Dec 2020 | 22 Dec 2020 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Jun 2020 | 13 Jun 2020 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2020 | 13 May 2020 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Sep 2019 | 19 Sep 2019 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 14 May 2019 | 13 May 2019 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Aug 2018 | 10 Aug 2018 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Jun 2018 | 13 Jun 2018 | 001-13471 |
| 4/A | Open Document | Open Filing | FORM 4/A | 14 Jun 2018 | 08 Jun 2018 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jun 2018 | 08 Jun 2018 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2018 | 11 May 2018 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Sep 2017 | 19 Sep 2017 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2017 | 12 May 2017 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 - | 17 May 2016 | 13 May 2016 | 001-13471 |
| 3 | Open Document | Open Filing | FORM 3 - | 10 May 2016 | 09 May 2016 | 001-13471 |