| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2022 | 31 Dec 2021 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2021 | 24 Feb 2021 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Dec 2020 | 31 Dec 2020 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2020 | 20 May 2020 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Feb 2020 | 27 Feb 2020 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jan 2020 | 31 Dec 2019 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2019 | 20 May 2019 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jan 2019 | 31 Dec 2018 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Dec 2018 | 19 Dec 2018 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2018 | 20 May 2018 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2018 | 27 Feb 2018 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Dec 2017 | 19 Dec 2017 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2017 | 20 May 2017 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2017 | 20 May 2016 | 000-32897 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2017 | 20 May 2015 | 000-32897 |
| 3 | Open Document | Open Filing | FORM 3 | 01 Apr 2015 | 30 Mar 2015 | 000-32897 |