| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2025 | 20 May 2025 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 | 23 May 2024 | 21 May 2024 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2023 | 16 May 2023 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 19 May 2022 | 17 May 2022 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 20 May 2021 | 18 May 2021 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 Mar 2021 | 16 Mar 2021 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 Dec 2020 | 10 Dec 2020 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 Sep 2020 | 10 Sep 2020 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 12 Jun 2020 | 10 Jun 2020 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 May 2020 | 12 May 2020 | 000-20797 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 31 Mar 2020 | 17 Mar 2020 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 19 Mar 2020 | 29 Aug 2018 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 16 May 2019 | 14 May 2019 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 17 May 2018 | 15 May 2018 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 23 May 2017 | 16 May 2017 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 Mar 2017 | 10 Mar 2017 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 19 May 2016 | 17 May 2016 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Mar 2016 | 07 Mar 2016 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 21 May 2015 | 19 May 2015 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 19 Feb 2015 | 17 Feb 2015 | 000-20797 |
| 4 | Open Document | Open Filing | FORM 4 - | 22 May 2014 | 20 May 2014 | 000-20797 |