| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 May 2022 | 16 May 2022 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2021 | 17 May 2021 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2020 | 15 May 2020 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2019 | 21 May 2019 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2019 | 06 May 2019 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2018 | 14 May 2018 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2018 | 08 May 2018 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2017 | 15 May 2017 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2016 | 17 May 2016 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2016 | 22 Mar 2016 | 001-16537 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2016 | 22 Mar 2016 | 001-16537 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Jul 2015 | 22 Jun 2015 | 001-32302 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 29 Jun 2015 | 28 May 2015 | 001-32302 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2015 | 28 May 2015 | 001-32302 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Mar 2015 | 10 Mar 2015 | 001-32302 |
| 4 | Open Document | Open Filing | HOBBS SEPT 11 | 12 Sep 2014 | 10 Sep 2014 | 001-32302 |
| 4 | Open Document | Open Filing | HOBBS JUNE 2014 | 25 Jun 2014 | 23 Jun 2014 | 001-32302 |
| 4 | Open Document | Open Filing | HOBBS MAY 29 | 02 Jun 2014 | 29 May 2014 | 001-32302 |