| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Nov 2021 | 01 Nov 2021 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 | 14 May 2021 | 12 May 2021 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Mar 2021 | 04 Mar 2021 | 000-30739 |
| 4 | Open Document | Open Filing | 4 | 14 May 2020 | 12 May 2020 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2019 | 15 May 2019 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2018 | 01 Nov 2018 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2018 | 15 May 2018 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Feb 2018 | 05 Feb 2018 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Oct 2017 | 02 Oct 2017 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jul 2017 | 06 Jul 2017 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2017 | 17 May 2017 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 May 2017 | 08 May 2017 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Apr 2017 | 07 Apr 2017 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jun 2016 | 08 Jun 2016 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 May 2016 | 23 May 2016 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2016 | 19 May 2016 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 May 2016 | 19 May 2016 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 May 2015 | 15 May 2015 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2015 | 06 Mar 2015 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jan 2015 | 11 Jan 2015 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2015 | 08 Jan 2015 | 000-30739 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Nov 2014 | 18 Nov 2014 | 001-36593 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Nov 2014 | 12 Nov 2014 | 001-36593 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 12 Nov 2014 | 12 Nov 2014 | 001-36593 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2014 | 02 May 2014 | 000-30739 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2014 | 10 Jan 2014 | 000-30739 |