| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2023 | May 19, 2023 | 001-06780 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2022 | May 20, 2022 | 001-06780 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2021 | May 21, 2021 | 001-06780 |
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2020 | May 15, 2020 | 001-06780 |
| 4 | Open Document | Open Filing | May 21, 2019 | May 17, 2019 | 001-06780 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2018 | Jul 3, 2018 | 001-36098 |
| 4 | Open Document | Open Filing | May 22, 2018 | May 18, 2018 | 001-06780 | |
| 4 | Open Document | Open Filing | May 22, 2017 | May 19, 2017 | 001-06780 | |
| 4 | Open Document | Open Filing | May 25, 2016 | May 24, 2016 | 001-06780 | |
| 4 | Open Document | Open Filing | May 18, 2015 | May 15, 2015 | 001-06780 | |
| 4 | Open Document | Open Filing | Jul 16, 2014 | Jul 15, 2014 | 001-06780 | |
| 3 | Open Document | Open Filing | Jun 30, 2014 | Jun 27, 2014 | 001-06780 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2014 | May 7, 2014 | 001-13515 |
| 3 | Open Document | Open Filing | FRASER F3 | Feb 26, 2014 | Nov 19, 2013 | 001-36098 |