| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Dec 2021 | 07 Dec 2021 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Oct 2021 | 20 Oct 2021 | 001-16317 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 12 May 2021 | 29 Apr 2021 | 001-16317 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Mar 2019 | 01 Mar 2019 | 001-34464 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Feb 2018 | 13 Feb 2018 | 001-34464 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2017 | 01 Aug 2017 | 001-34464 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Aug 2017 | 01 Aug 2017 | 001-34464 |