| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2023 | Apr 3, 2023 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2023 | Mar 15, 2023 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2022 | Dec 15, 2022 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 4, 2022 | Nov 4, 2022 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2022 | Mar 15, 2022 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2022 | Feb 22, 2022 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2021 | Dec 15, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2021 | Jun 2, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2021 | May 4, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2021 | Mar 15, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2021 | Feb 25, 2021 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2020 | Dec 15, 2020 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2020 | Mar 16, 2020 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2020 | Mar 10, 2020 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2020 | Feb 26, 2020 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 6, 2019 | Nov 4, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2019 | Mar 27, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2019 | Mar 15, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2019 | Mar 11, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2019 | Feb 27, 2019 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2018 | Jun 10, 2018 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 16, 2018 | Feb 28, 2018 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 13, 2018 | Mar 10, 2018 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2018 | Feb 28, 2018 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2017 | Jun 10, 2017 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 13, 2017 | Mar 10, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 24, 2017 | Feb 23, 2017 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2016 | Jun 10, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 29, 2016 | Feb 25, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2016 | Feb 16, 2016 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 31, 2015 | Jul 31, 2015 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2015 | Jun 25, 2015 | 000-29480 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2015 | Jun 10, 2015 | 000-29480 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 28, 2015 | Apr 22, 2015 | 000-29480 |