| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 10, 2024 | Jan 8, 2024 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 9, 2024 | Jan 5, 2024 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 6, 2023 | Dec 4, 2023 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 26, 2023 | May 24, 2023 | 000-19961 |
| 144 | Open Document | Open Filing | May 24, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 12, 2023 | Apr 11, 2023 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 5, 2023 | Apr 3, 2023 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 3, 2023 | Feb 1, 2023 | 000-19961 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jan 23, 2023 | Jan 5, 2023 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 9, 2023 | Jan 5, 2023 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 5, 2022 | Dec 5, 2022 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 13, 2022 | Apr 11, 2022 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 5, 2022 | Apr 1, 2022 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 3, 2022 | Feb 1, 2022 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 7, 2021 | Dec 4, 2021 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 5, 2021 | Apr 1, 2021 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 7, 2020 | Dec 4, 2020 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2020 | Jun 8, 2020 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 3, 2020 | Apr 1, 2020 | 000-19961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 5, 2019 | Dec 4, 2019 | 000-19961 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Dec 5, 2019 | Dec 4, 2019 | 000-19961 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 17, 2017 | Aug 15, 2017 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 9, 2017 | Aug 7, 2017 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2017 | Feb 17, 2017 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2016 | Nov 15, 2016 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2016 | Aug 26, 2016 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2016 | Aug 22, 2016 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2016 | Aug 8, 2016 | 000-52082 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 9, 2015 | Aug 27, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2015 | Sep 1, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2015 | Aug 27, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 19, 2015 | Aug 17, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 12, 2015 | Aug 10, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2015 | Feb 27, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2015 | Feb 25, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2015 | Feb 23, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2015 | Jan 29, 2015 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 20, 2014 | Nov 18, 2014 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2014 | Sep 3, 2014 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 25, 2014 | Aug 21, 2014 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 20, 2014 | Aug 18, 2014 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 18, 2014 | Jul 16, 2014 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2014 | Apr 24, 2014 | 000-52082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2014 | Feb 19, 2014 | 000-52082 |