| 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 | 16 May 2024 | 14 May 2024 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2024 | 06 Mar 2024 | 001-04121 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 May 2023 | 16 May 2023 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2023 | 01 Mar 2023 | 001-04121 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 19 May 2022 | 17 May 2022 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2022 | 02 Mar 2022 | 001-04121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2021 | 18 May 2021 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2021 | 03 Mar 2021 | 001-04121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2020 | 11 May 2020 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2020 | 04 Mar 2020 | 001-04121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2019 | 13 May 2019 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2019 | 06 Mar 2019 | 001-04121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2018 | 14 May 2018 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2018 | 07 Mar 2018 | 001-04121 |
| 4/A | Open Document | Open Filing | FORM 4/A | 16 Nov 2017 | 08 May 2017 | 001-11373 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Nov 2017 | 08 Nov 2017 | 001-11373 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2017 | 16 May 2017 | 001-07221 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2017 | 08 May 2017 | 001-11373 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2017 | 01 Mar 2017 | 001-04121 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Nov 2016 | 03 Nov 2016 | 001-11373 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2016 | 16 May 2016 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2016 | 02 Mar 2016 | 001-04121 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Nov 2015 | 04 Nov 2015 | 001-11373 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2015 | 18 May 2015 | 001-07221 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2015 | 18 May 2015 | 001-07221 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2015 | 04 Mar 2015 | 001-04121 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Nov 2014 | 05 Nov 2014 | 001-11373 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2014 | 05 Mar 2014 | 001-04121 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 14 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 14 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 14 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2014 | 06 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2014 | 03 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2014 | 03 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2014 | 03 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2014 | 03 Feb 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2014 | 06 Jan 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2014 | 06 Jan 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2014 | 02 Jan 2014 | 001-16445 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2014 | 02 Jan 2014 | 001-16445 |