| 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 | May 11, 2022 | May 10, 2022 | 001-14461 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Nov 19, 2021 | Nov 18, 2021 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 14, 2021 | May 14, 2021 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2021 | Mar 12, 2021 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2021 | Feb 16, 2021 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2020 | Nov 18, 2020 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2020 | Mar 16, 2020 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2020 | Mar 1, 2020 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2020 | Feb 10, 2020 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2019 | Nov 18, 2019 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2019 | Mar 12, 2019 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2019 | Mar 1, 2019 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2019 | Mar 1, 2019 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2019 | Feb 19, 2019 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2019 | Feb 10, 2019 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 14, 2018 | Nov 14, 2018 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2018 | Feb 19, 2018 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2018 | Feb 10, 2018 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 30, 2017 | Nov 28, 2017 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2017 | May 16, 2017 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2017 | Feb 19, 2017 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2017 | Feb 11, 2017 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2017 | Feb 8, 2017 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2016 | Dec 7, 2016 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 21, 2016 | Nov 17, 2016 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2016 | May 16, 2016 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 28, 2016 | Mar 27, 2016 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2016 | Feb 10, 2016 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2016 | Feb 8, 2016 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2015 | May 16, 2015 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 24, 2015 | Apr 23, 2015 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 30, 2015 | Mar 27, 2015 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2015 | Feb 19, 2015 | 001-14461 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2015 | Feb 11, 2015 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2015 | Feb 10, 2015 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2015 | Feb 8, 2015 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 27, 2014 | Mar 27, 2014 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2014 | Feb 8, 2014 | 001-14461 |