| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2023 | 07 Jun 2023 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2022 | 01 Jul 2022 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2022 | 08 Jun 2022 | 001-06395 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2021 | 01 Jul 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2021 | 01 Jul 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jun 2021 | 09 Jun 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Dec 2020 | 07 Dec 2020 | 001-06395 |
| 4 | Open Document | Open Filing | 05 Nov 2020 | 05 Nov 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | 05 Nov 2020 | 05 Nov 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | 30 Jul 2020 | 29 Jul 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2020 | 01 Jul 2020 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2020 | 10 Jun 2020 | 001-06395 |
| 4 | Open Document | Open Filing | 06 May 2020 | 05 May 2020 | 001-16027 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2020 | 16 Mar 2020 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2020 | 24 Feb 2020 | 001-06395 |
| 4 | Open Document | Open Filing | 15 Nov 2019 | 13 Nov 2019 | 001-16027 | |
| 4 | Open Document | Open Filing | 06 Nov 2019 | 02 Oct 2019 | 001-16027 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2019 | 01 Jul 2019 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2019 | 12 Jun 2019 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2019 | 31 May 2019 | 001-06395 |
| 4 | Open Document | Open Filing | 14 May 2019 | 13 May 2019 | 001-16027 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 08 May 2019 | 001-06395 |
| 4 | Open Document | Open Filing | 15 Nov 2018 | 13 Nov 2018 | 001-16027 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jul 2018 | 11 Jul 2018 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2018 | 01 Jul 2018 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2018 | 13 Jun 2018 | 001-06395 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 May 2018 | 14 May 2018 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2017 | 04 Dec 2017 | 001-06395 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Nov 2017 | 16 Nov 2017 | 001-16027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Nov 2017 | 14 Nov 2017 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2017 | 01 Jul 2017 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2017 | 14 Jun 2017 | 001-06395 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 May 2017 | 16 May 2017 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2017 | 05 Apr 2017 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2016 | 20 Dec 2016 | 001-06395 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Nov 2016 | 19 Nov 2016 | 001-16027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Nov 2016 | 16 Nov 2016 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2016 | 01 Jul 2016 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jun 2016 | 28 Jun 2016 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jun 2016 | 15 Jun 2016 | 001-06395 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 May 2016 | 19 May 2016 | 001-16027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 24 Feb 2016 | 22 Feb 2016 | 001-16027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Nov 2015 | 19 Nov 2015 | 001-16027 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Aug 2015 | 25 Aug 2015 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2015 | 01 Jul 2015 | 001-06395 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jun 2015 | 01 Jun 2015 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2015 | 05 May 2015 | 001-31353 |
| 4 | Open Document | Open Filing | FORM 4 | 06 May 2015 | 05 May 2015 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2015 | 09 Mar 2015 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2015 | 18 Feb 2015 | 001-31353 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2015 | 06 Feb 2015 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2015 | 01 Jan 2015 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2014 | 03 Dec 2014 | 001-06395 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Nov 2014 | 21 Nov 2014 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2014 | 01 Jul 2014 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2014 | 06 May 2014 | 001-31353 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 May 2014 | 05 May 2014 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2014 | 10 Mar 2014 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2014 | 14 Feb 2014 | 001-31353 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2014 | 06 Feb 2014 | 001-16027 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2014 | 01 Jan 2014 | 001-06395 |