| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 5, 2022 | Feb 4, 2022 | 001-32501 | |
| 4 | Open Document | Open Filing | Feb 1, 2021 | Jan 26, 2021 | 001-32501 | |
| 4 | Open Document | Open Filing | Nov 30, 2020 | Nov 24, 2020 | 001-32501 | |
| 4 | Open Document | Open Filing | Nov 3, 2020 | Nov 2, 2020 | 001-32501 | |
| 4 | Open Document | Open Filing | Oct 20, 2020 | Oct 16, 2020 | 000-52369 | |
| 4 | Open Document | Open Filing | Apr 23, 2020 | Apr 22, 2020 | 001-32501 | |
| 4 | Open Document | Open Filing | Oct 29, 2019 | Oct 25, 2019 | 001-32501 | |
| 4 | Open Document | Open Filing | Jun 3, 2019 | Feb 1, 2019 | 001-32501 | |
| 4 | Open Document | Open Filing | Apr 15, 2019 | Apr 10, 2019 | 001-32501 | |
| 4 | Open Document | Open Filing | Jan 14, 2019 | Dec 31, 2018 | 000-52369 | |
| 4 | Open Document | Open Filing | Oct 3, 2018 | Oct 1, 2018 | 000-52369 | |
| 4 | Open Document | Open Filing | Jul 19, 2018 | Jul 18, 2018 | 000-52369 | |
| 4 | Open Document | Open Filing | May 8, 2018 | May 4, 2018 | 000-52369 | |
| 4 | Open Document | Open Filing | Mar 22, 2018 | Mar 21, 2018 | 000-52369 | |
| 5 | Open Document | Open Filing | Feb 14, 2018 | Dec 31, 2017 | 000-52369 | |
| 4/A | Open Document | Open Filing | Jan 22, 2018 | Jan 10, 2018 | 001-32501 | |
| 4 | Open Document | Open Filing | Jan 18, 2018 | Jan 10, 2018 | 001-32501 | |
| 4 | Open Document | Open Filing | Jan 2, 2018 | Dec 28, 2017 | 001-32501 | |
| 4 | Open Document | Open Filing | Oct 11, 2017 | Oct 10, 2017 | 000-52369 | |
| 4 | Open Document | Open Filing | Aug 28, 2017 | Aug 23, 2017 | 001-32501 | |
| 4/A | Open Document | Open Filing | Aug 15, 2017 | May 17, 2016 | 000-52369 | |
| 4 | Open Document | Open Filing | Jul 24, 2017 | May 17, 2016 | 000-52369 | |
| 3 | Open Document | Open Filing | Oct 24, 2016 | Oct 19, 2016 | 001-32501 | |
| 4 | Open Document | Open Filing | Feb 25, 2015 | Feb 23, 2015 | 000-52369 |