| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 14 Mar 2022 | 31 Dec 2021 | 001-08429 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Apr 2018 | 24 Apr 2018 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2017 | 28 Mar 2017 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2017 | 23 Mar 2017 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Jun 2016 | 10 Jun 2016 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Jun 2016 | 07 Jun 2016 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Apr 2016 | 31 Mar 2016 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2015 | 15 May 2015 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2014 | 20 May 2014 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2014 | 16 May 2014 | 001-34023 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Apr 2014 | 02 Apr 2014 | 001-34023 |