| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Jun 2022 | 07 Jun 2022 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2022 | 16 May 2022 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2022 | 12 May 2022 | 001-34630 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Sep 2021 | 01 Sep 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Sep 2021 | 01 Sep 2021 | 001-34630 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 11 Aug 2021 | 11 Aug 2021 | 001-40737 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2021 | 19 May 2021 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Dec 2020 | 28 Dec 2020 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 May 2020 | 22 May 2020 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2019 | 03 Sep 2019 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2019 | 30 May 2019 | 000-15386 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Apr 2019 | 29 Apr 2019 | 000-15386 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 17 Apr 2019 | 08 Apr 2019 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2018 | 04 Sep 2018 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 - | 27 Aug 2018 | 27 Aug 2018 | 001-37787 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Jun 2018 | 01 Jun 2018 | 001-37787 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 May 2018 | 24 May 2018 | 001-37787 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Jan 2018 | 01 Jan 2018 | 001-37787 |
| 3 | Open Document | Open Filing | FORM 3 - | 04 Dec 2017 | 01 Dec 2017 | 001-37787 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2017 | 01 Sep 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Dec 2016 | 07 Oct 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2016 | 21 Jul 2016 | 001-34630 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2016 | 21 Jul 2016 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jan 2016 | 27 Jan 2016 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Dec 2015 | 14 Dec 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Mar 2015 | 19 Mar 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Mar 2015 | 06 Mar 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2015 | 19 Feb 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2014 | 12 May 2014 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2014 | 02 May 2014 | 001-33881 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 14 Mar 2014 | 07 Mar 2014 | 001-33881 |