| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Feb 8, 2024 | Feb 6, 2024 | 000-14719 | |
| 4 | Open Document | Open Filing | Dec 1, 2023 | Nov 7, 2023 | 000-14719 | |
| 4 | Open Document | Open Filing | Mar 31, 2023 | Mar 29, 2023 | 000-14719 | |
| 4 | Open Document | Open Filing | Feb 24, 2023 | Nov 10, 2022 | 000-14719 | |
| 4 | Open Document | Open Filing | Feb 9, 2023 | Feb 7, 2023 | 000-14719 | |
| 4/A | Open Document | Open Filing | Mar 21, 2022 | Mar 11, 2022 | 000-14719 | |
| 4 | Open Document | Open Filing | Mar 15, 2022 | Mar 11, 2022 | 000-14719 | |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 14, 2022 | Feb 10, 2022 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 16, 2021 | Feb 11, 2021 | 000-14719 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 8, 2021 | Dec 31, 2020 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2020 | May 1, 2020 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 13, 2020 | Mar 12, 2020 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 9, 2020 | Mar 9, 2020 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 6, 2020 | Feb 4, 2020 | 000-14719 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 5, 2020 | Dec 31, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 5, 2020 | May 24, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Sep 13, 2019 | Sep 12, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 14, 2019 | Jun 13, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2019 | May 31, 2019 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | May 14, 2019 | May 10, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | May 8, 2019 | May 6, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | May 2, 2019 | Apr 30, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 27, 2019 | Feb 25, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 22, 2019 | Feb 20, 2019 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 7, 2019 | Feb 5, 2019 | 000-14719 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 7, 2019 | Dec 31, 2018 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 2, 2018 | Nov 1, 2018 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2018 | Jun 1, 2018 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 21, 2018 | Feb 17, 2018 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 9, 2018 | Feb 7, 2018 | 000-14719 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 9, 2018 | Dec 31, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 8, 2018 | Feb 6, 2018 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 5, 2017 | Dec 1, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 20, 2017 | Nov 16, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Sep 21, 2017 | Sep 19, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Jul 31, 2017 | Jul 27, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2017 | Jun 2, 2017 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | May 26, 2017 | May 25, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | May 22, 2017 | May 19, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 28, 2017 | Feb 18, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 13, 2017 | Feb 9, 2017 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 17, 2016 | Nov 16, 2016 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 23, 2016 | Aug 19, 2016 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 17, 2016 | Apr 4, 2016 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 26, 2016 | Jul 22, 2016 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 24, 2016 | Jun 24, 2016 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 14, 2016 | Jun 14, 2016 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 12, 2016 | Feb 10, 2016 | 000-14719 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 11, 2016 | Dec 31, 2015 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 12, 2015 | Nov 10, 2015 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 3, 2015 | Oct 30, 2015 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 | May 27, 2015 | May 26, 2015 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | May 6, 2015 | May 5, 2015 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 24, 2015 | Feb 23, 2015 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 18, 2015 | Feb 17, 2015 | 000-14719 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 13, 2015 | Dec 31, 2014 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 12, 2014 | Nov 10, 2014 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 16, 2014 | Jun 13, 2014 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 16, 2014 | Jun 12, 2014 | 000-14719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2014 | Jun 2, 2014 | 001-12307 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 20, 2014 | Feb 18, 2014 | 000-14719 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2014 | Apr 30, 2013 | 001-12307 |
| 5 | Open Document | Open Filing | FORM 5 - | Feb 10, 2014 | Dec 31, 2013 | 000-14719 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 4, 2014 | Feb 3, 2014 | 000-14719 |
| 4/A | Open Document | Open Filing | FORM 4/A - | Feb 4, 2014 | Feb 4, 2014 | 000-14719 |