| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2023 | Feb 28, 2023 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2023 | Feb 21, 2023 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2023 | Feb 15, 2023 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2022 | Mar 25, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 9, 2022 | Mar 7, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2022 | Feb 28, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2022 | Feb 15, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 25, 2022 | Jan 21, 2022 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 30, 2021 | Mar 26, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2021 | Mar 18, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2021 | Feb 26, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2021 | Feb 22, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2021 | Feb 15, 2021 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2020 | Aug 10, 2020 | 000-20288 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 12, 2020 | Feb 27, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2020 | Feb 28, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2020 | Feb 27, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 25, 2020 | Feb 24, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2020 | Feb 21, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 23, 2020 | Jan 22, 2020 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 12, 2019 | Jun 11, 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2019 | Mar 27, 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 27, 2019 | Mar 25, 2019 | 000-20288 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 14, 2019 | Feb 27, 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2019 | Feb 27, 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 25, 2019 | Feb 22, 2019 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 21, 2018 | Nov 20, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2018 | Jul 5, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 27, 2018 | Mar 23, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2018 | Feb 28, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2018 | Feb 28, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2018 | Feb 26, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2018 | Feb 23, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 8, 2018 | Jan 8, 2018 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 3, 2017 | Jul 3, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 28, 2017 | Mar 24, 2017 | 000-20288 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 9, 2017 | Mar 8, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2017 | Feb 27, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2017 | Feb 24, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2017 | Feb 22, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2017 | Feb 22, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 9, 2017 | Jan 6, 2017 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2016 | Jul 1, 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 29, 2016 | Feb 26, 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2016 | Feb 24, 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2016 | Feb 22, 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2016 | Jan 14, 2016 | 000-20288 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2015 | Jul 2, 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 27, 2015 | Mar 25, 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2015 | Feb 27, 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 24, 2015 | Feb 20, 2015 | 000-20288 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 5, 2015 | Dec 31, 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 7, 2015 | Jan 6, 2015 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 2, 2014 | Jul 1, 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2014 | Feb 26, 2014 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2014 | Feb 21, 2014 | 000-20288 |
| 5 | Open Document | Open Filing | FORM 5 | Feb 7, 2014 | Dec 31, 2013 | 000-20288 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2014 | Jan 9, 2014 | 000-20288 |