| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 01 May 2023 | 27 Apr 2023 | 000-20388 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 May 2022 | 10 May 2022 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 02 May 2022 | 28 Apr 2022 | 000-20388 |
| 5 | Open Document | Open Filing | FORM 5 | 14 Jan 2022 | 01 Jan 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2021 | 07 May 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 May 2021 | 04 May 2021 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Apr 2021 | 22 Apr 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Feb 2021 | 08 Feb 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Nov 2020 | 10 Nov 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Aug 2020 | 12 Aug 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2020 | 05 May 2020 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Apr 2020 | 23 Apr 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2020 | 05 Feb 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2019 | 30 Apr 2019 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Apr 2019 | 26 Apr 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Feb 2019 | 12 Feb 2019 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 01 May 2018 | 27 Apr 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Apr 2018 | 17 Apr 2018 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Feb 2018 | 20 Feb 2018 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 | 01 May 2017 | 28 Apr 2017 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Apr 2017 | 19 Apr 2017 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Dec 2016 | 05 Dec 2016 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Apr 2016 | 26 Apr 2016 | 001-33458 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Apr 2016 | 22 Apr 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Apr 2015 | 28 Apr 2015 | 001-33458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2015 | 24 Apr 2015 | 000-20388 |
| 4 | Open Document | Open Filing | 30 Apr 2014 | 29 Apr 2014 | 001-33458 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Apr 2014 | 25 Apr 2014 | 000-20388 |