| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Mar 2022 | 02 Mar 2022 | 001-04448 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Feb 2022 | 10 Feb 2022 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Sep 2021 | 01 Sep 2021 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2021 | 03 Mar 2021 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2021 | 16 Feb 2021 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jun 2020 | 19 Jun 2020 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2020 | 19 Mar 2020 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Mar 2020 | 17 Mar 2020 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2019 | 03 Sep 2019 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2019 | 18 Mar 2019 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2019 | 04 Mar 2019 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2019 | 28 Feb 2019 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2019 | 19 Feb 2019 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Sep 2018 | 17 Sep 2018 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2018 | 05 Mar 2018 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2018 | 01 Mar 2018 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2018 | 19 Feb 2018 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2018 | 02 Jan 2018 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2017 | 01 Sep 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Aug 2017 | 17 Aug 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jun 2017 | 02 Jun 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2017 | 06 Mar 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2017 | 03 Mar 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2017 | 02 Mar 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2017 | 21 Feb 2017 | 001-04448 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2016 | 01 Sep 2016 | 001-04448 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jun 2016 | 17 Jun 2016 | 001-04448 |