| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 23 Feb 2023 | 21 Feb 2023 | 000-10537 | |
| 4 | Open Document | Open Filing | 17 Feb 2022 | 15 Feb 2022 | 000-10537 | |
| 4 | Open Document | Open Filing | 10 Dec 2021 | 10 Dec 2021 | 000-10537 | |
| 4 | Open Document | Open Filing | FORM 4 - | 20 Aug 2021 | 19 Aug 2021 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Mar 2021 | 08 Mar 2021 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 Feb 2021 | 16 Feb 2021 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 25 Sep 2020 | 23 Sep 2020 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Mar 2020 | 04 Mar 2020 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 19 Feb 2020 | 18 Feb 2020 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Jun 2019 | 03 Jun 2019 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 Dec 2018 | 18 Dec 2018 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 Sep 2018 | 12 Sep 2018 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 18 Apr 2018 | 17 Apr 2018 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 22 Feb 2018 | 20 Feb 2018 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 06 Feb 2018 | 06 Feb 2018 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Feb 2018 | 01 Feb 2018 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 17 Aug 2017 | 16 Aug 2017 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 24 Feb 2017 | 23 Feb 2017 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 22 Feb 2017 | 21 Feb 2017 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 08 Feb 2017 | 08 Feb 2017 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Feb 2017 | 31 Jan 2017 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 May 2016 | 12 May 2016 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 17 Feb 2016 | 16 Feb 2016 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 25 Jan 2016 | 25 Jan 2016 | 000-10537 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 Oct 2015 | 29 Oct 2015 | 000-10537 |
| 3 | Open Document | Open Filing | FORM 3 - | 15 Oct 2015 | 14 Oct 2015 | 000-10537 |