| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 14 May 2021 | 13 May 2021 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Jun 2020 | 28 May 2020 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2020 | 21 May 2020 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2020 | 20 May 2020 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2019 | 22 May 2019 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2018 | 13 Jun 2018 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Mar 2018 | 13 Mar 2018 | 001-38034 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2017 | 24 Mar 2017 | 001-38034 |
| 3 | Open Document | Open Filing | FORM 3 | 23 Mar 2017 | 23 Mar 2017 | 001-38034 |