| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | 24 Sep 2021 | 23 Sep 2021 | 000-14678 |
| 4 | Open Document | Open Filing | FORM 4 - | 21 May 2021 | 19 May 2021 | 000-14678 |
| 4 | Open Document | Open Filing | FORM 4 - | 22 May 2020 | 20 May 2020 | 000-14678 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 May 2020 | 07 May 2020 | 001-32729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2020 | 01 Apr 2020 | 001-31892 |
| 4 | Open Document | Open Filing | FORM 4 - | 24 May 2019 | 22 May 2019 | 000-14678 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2019 | 09 May 2019 | 001-32729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Apr 2019 | 04 Apr 2019 | 001-31892 |
| 4 | Open Document | Open Filing | FORM 4 - | 25 May 2018 | 23 May 2018 | 000-14678 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 May 2018 | 09 May 2018 | 001-32729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Apr 2018 | 09 Apr 2018 | 001-31892 |
| 4 | Open Document | Open Filing | 05 Dec 2017 | 01 Dec 2017 | 001-32729 | |
| 4 | Open Document | Open Filing | FORM 4 - | 19 May 2017 | 17 May 2017 | 000-14678 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2017 | 04 Apr 2017 | 001-31892 |
| 4 | Open Document | Open Filing | 06 Dec 2016 | 02 Dec 2016 | 001-32729 | |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Oct 2016 | 03 Oct 2016 | 000-14678 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Oct 2016 | 04 Oct 2016 | 001-31892 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2016 | 03 Oct 2016 | 001-31892 |
| 4 | Open Document | Open Filing | FORM 4 - | 20 May 2016 | 18 May 2016 | 000-14678 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Apr 2016 | 05 Apr 2016 | 001-31892 |
| 4 | Open Document | Open Filing | 08 Dec 2015 | 04 Dec 2015 | 001-32729 | |
| 4 | Open Document | Open Filing | FORM 4 - | 22 May 2015 | 20 May 2015 | 000-14678 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2015 | 09 Apr 2015 | 001-31892 |
| 5 | Open Document | Open Filing | FORM 5 - | 02 Mar 2015 | 31 Jan 2015 | 000-14678 |
| 4 | Open Document | Open Filing | 08 Dec 2014 | 05 Dec 2014 | 001-32729 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Oct 2014 | 03 Oct 2014 | 001-31892 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2014 | 08 Jul 2014 | 001-31892 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2014 | 08 Jul 2014 | 001-31892 |
| 4 | Open Document | Open Filing | FORM 4 - | 22 May 2014 | 21 May 2014 | 000-14678 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2014 | 11 Apr 2014 | 001-31892 |