| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 Jun 2022 | 26 May 2022 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jun 2022 | 26 May 2022 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Mar 2022 | 30 Mar 2022 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Sep 2021 | 01 Sep 2021 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Mar 2021 | 22 Mar 2021 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Oct 2020 | 09 Oct 2020 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Apr 2020 | 07 Apr 2020 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2019 | 21 Mar 2019 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Apr 2018 | 12 Apr 2018 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Mar 2018 | 27 Mar 2018 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Feb 2018 | 13 Feb 2018 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Mar 2017 | 14 Mar 2017 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2016 | 13 Dec 2016 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jul 2016 | 11 Jul 2016 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2016 | 15 Mar 2016 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Dec 2015 | 09 Dec 2015 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2015 | 17 Mar 2015 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Mar 2014 | 18 Mar 2014 | 000-20969 |