| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 08 May 2025 | 06 May 2025 | 000-19969 | |
| 4 | Open Document | Open Filing | 09 May 2024 | 07 May 2024 | 000-19969 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Sep 2023 | 01 Sep 2023 | 000-19969 |
| 144 | Open Document | Open Filing | 01 Sep 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 May 2023 | 05 May 2023 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 May 2022 | 06 May 2022 | 000-19969 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jun 2021 | 11 May 2021 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2021 | 11 May 2021 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Mar 2021 | 15 Mar 2021 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Aug 2020 | 17 Aug 2020 | 001-38253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2020 | 12 May 2020 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 May 2019 | 29 May 2019 | 001-38253 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 31 May 2019 | 29 May 2019 | 001-38253 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2019 | 30 May 2019 | 001-13252 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 May 2019 | 24 May 2019 | 001-13252 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2019 | 21 May 2019 | 001-13252 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2019 | 09 May 2019 | 000-19969 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 06 Feb 2019 | 01 Aug 2018 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Aug 2018 | 01 Aug 2018 | 000-19969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2018 | 30 May 2018 | 001-13252 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2017 | 01 Nov 2017 | 001-13252 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2017 | 23 May 2017 | 001-13252 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 May 2017 | 12 May 2017 | 000-19969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2016 | 01 Nov 2016 | 001-13252 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2016 | 24 May 2016 | 001-13252 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 May 2016 | 06 May 2016 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Aug 2015 | 10 Aug 2015 | 000-19969 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 06 Aug 2015 | 28 Jul 2015 | 000-19969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Aug 2015 | 03 Aug 2015 | 001-13252 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jul 2015 | 20 Jul 2015 | 001-13252 |