| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 01 Dec 2021 | 30 Nov 2021 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Apr 2021 | 05 Apr 2021 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2020 | 30 Nov 2020 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Apr 2020 | 05 Apr 2020 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jan 2020 | 21 Jan 2020 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Apr 2019 | 05 Apr 2019 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Aug 2018 | 27 Aug 2018 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jul 2018 | 06 Jul 2018 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Apr 2018 | 05 Apr 2018 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Mar 2018 | 19 Mar 2018 | 001-07982 |
| 3 | Open Document | Open Filing | FORM 3 | 08 Jan 2018 | 01 Jan 2018 | 001-07982 |