| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2022 | 01 Mar 2022 | 001-15393 |
| 4/A | Open Document | Open Filing | FORM 4/A | 10 Jan 2022 | 23 Dec 2021 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Dec 2021 | 20 Dec 2021 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Mar 2021 | 16 Mar 2021 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Mar 2021 | 16 Mar 2021 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Mar 2021 | 05 Mar 2021 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2021 | 25 Feb 2021 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2020 | 17 Mar 2020 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2020 | 19 Mar 2020 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Mar 2020 | 12 Mar 2020 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jan 2020 | 23 Jan 2020 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Apr 2019 | 15 Apr 2019 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Mar 2019 | 19 Mar 2019 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Mar 2019 | 11 Mar 2019 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Mar 2019 | 06 Mar 2019 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Jan 2019 | 22 Jan 2019 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Mar 2018 | 11 Mar 2018 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Mar 2018 | 13 Mar 2018 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jan 2018 | 19 Jan 2018 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jan 2018 | 18 Jan 2018 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Mar 2017 | 11 Mar 2017 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Mar 2017 | 08 Mar 2017 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jan 2017 | 19 Jan 2017 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Jan 2017 | 15 Dec 2016 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Mar 2016 | 08 Mar 2016 | 001-15393 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Jan 2016 | 19 Jan 2016 | 001-15393 |
| 3 | Open Document | Open Filing | FORM 3 | 05 Jun 2015 | 20 May 2015 | 001-15393 |