| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2022 | 31 Dec 2021 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2021 | 26 Apr 2021 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Apr 2021 | 21 Apr 2021 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Mar 2021 | 23 Mar 2021 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Mar 2021 | 18 Mar 2021 | 001-33147 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 05 Feb 2021 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Apr 2020 | 06 Apr 2020 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 04 Mar 2020 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2019 | 02 Aug 2019 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2019 | 03 May 2019 | 001-33147 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Apr 2019 | 08 Apr 2019 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Apr 2019 | 08 Apr 2019 | 001-33147 |
| SC 13D | Open Document | Open Filing | SC 13D | 14 Mar 2019 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2019 | 01 Mar 2019 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2018 | 10 Sep 2018 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 31 May 2018 | 31 May 2018 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 06 Apr 2018 | 05 Apr 2018 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 04 Apr 2018 | 02 Apr 2018 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 06 Mar 2018 | 02 Mar 2018 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 01 Dec 2017 | 09 Aug 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 14 Nov 2017 | 10 Nov 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 09 Nov 2017 | 07 Nov 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 12 May 2017 | 10 May 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 10 May 2017 | 24 Feb 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 05 Apr 2017 | 03 Apr 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 23 Mar 2017 | 21 Mar 2017 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 12 Aug 2016 | 10 Aug 2016 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 18 May 2016 | 16 May 2016 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 22 Apr 2016 | 20 Apr 2016 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 02 Mar 2016 | 29 Feb 2016 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Dec 2015 | 16 Dec 2015 | 001-33147 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2015 | 01 Dec 2015 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 02 Apr 2015 | 31 Mar 2015 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 23 Mar 2015 | 19 Mar 2015 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 06 Mar 2015 | 06 Mar 2015 | 001-33147 |
| 4 | Open Document | Open Filing | 4 | 21 May 2014 | 06 May 2014 | 001-33147 |