| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 04 Jan 2024 | 02 Jan 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 04 Oct 2023 | 02 Oct 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jul 2023 | 03 Jul 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 May 2023 | 03 May 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Apr 2023 | 03 Apr 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Feb 2023 | 01 Feb 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Jan 2023 | 03 Jan 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Oct 2022 | 03 Oct 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jul 2022 | 01 Jul 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 May 2022 | 03 May 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Apr 2022 | 01 Apr 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Feb 2022 | 01 Feb 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Jan 2022 | 03 Jan 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Oct 2021 | 01 Oct 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jul 2021 | 01 Jul 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 02 Jun 2021 | 28 May 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jan 2021 | 04 Jan 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Oct 2020 | 01 Oct 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 02 Jul 2020 | 01 Jul 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 May 2020 | 01 May 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Jan 2020 | 02 Jan 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Oct 2019 | 01 Oct 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Jul 2019 | 01 Jul 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 May 2019 | 01 May 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 04 Jan 2019 | 02 Jan 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Oct 2018 | 01 Oct 2018 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Jul 2018 | 02 Jul 2018 | 000-06253 | |
| 4 | Open Document | Open Filing | FORM 4 | 08 May 2018 | 07 May 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2018 | 01 May 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 May 2017 | 17 May 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2017 | 01 May 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Jun 2016 | 23 May 2016 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 May 2016 | 19 May 2016 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 23 Jul 2015 | 21 Jul 2015 | 000-06253 |
| 5/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Jul 2015 | 31 Dec 2014 | 000-06253 |
| 5 | Open Document | Open Filing | 21 Jan 2015 | 31 Dec 2014 | 000-06253 |