| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A | 17 Oct 2024 | 15 Oct 2024 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Oct 2024 | 15 Oct 2024 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Aug 2023 | 18 Aug 2023 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2023 | 10 May 2023 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2022 | 11 May 2022 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 24 May 2021 | 20 May 2021 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 14 May 2020 | 13 May 2020 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2019 | 08 May 2019 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2018 | 16 May 2018 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2017 | 10 May 2017 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 13 May 2016 | 11 May 2016 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Oct 2015 | 19 Oct 2015 | 000-22490 |
| 3 | Open Document | Open Filing | FORM 3 | 19 Oct 2015 | 19 Oct 2015 | 000-22490 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2014 | 28 Mar 2014 | 001-34940 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Mar 2014 | 27 Mar 2014 | 001-34940 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Mar 2013 | 20 Mar 2013 | 001-34940 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Sep 2012 | 20 Jun 2012 | 001-34940 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Mar 2012 | 21 Mar 2012 | 001-34940 |