| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2022 | Jun 28, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 11, 2022 | May 10, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2022 | Apr 11, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2022 | Mar 22, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2022 | Mar 1, 2022 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2022 | Dec 31, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2021 | Feb 3, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 19, 2021 | Oct 18, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 10, 2021 | Sep 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2021 | Aug 24, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 12, 2021 | May 11, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 13, 2021 | Apr 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2021 | Mar 22, 2021 | 000-19364 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 15, 2021 | Mar 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2021 | Mar 9, 2021 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 12, 2020 | Nov 10, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 19, 2020 | Oct 16, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 25, 2020 | Aug 24, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 13, 2020 | May 11, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 10, 2020 | Apr 9, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2020 | Mar 9, 2020 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 18, 2019 | Oct 17, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | May 7, 2019 | Apr 11, 2019 | 000-19364 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 18, 2018 | Oct 17, 2018 | 000-19364 |
| 3 | Open Document | Open Filing | FORM 3 | Oct 18, 2018 | Oct 15, 2018 | 000-19364 |