| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 144 | Open Document | Open Filing | 09 Jun 2023 | |||
| 144 | Open Document | Open Filing | 24 May 2023 | |||
| 4 | Open Document | Open Filing | 17 May 2022 | 13 May 2022 | 000-16244 | |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Nov 2021 | 08 Nov 2021 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 May 2021 | 07 May 2021 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 - | 08 May 2020 | 08 May 2020 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 - | 08 Nov 2019 | 06 Nov 2019 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Oct 2019 | 11 Oct 2019 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 May 2019 | 07 May 2019 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 - | 08 May 2019 | 06 May 2019 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 May 2018 | 08 May 2018 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2018 | 04 May 2018 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 May 2018 | 04 May 2018 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Jun 2017 | 30 May 2017 | 000-16244 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 19 May 2017 | 05 May 2017 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 May 2017 | 05 May 2017 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 May 2017 | 04 May 2017 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 May 2016 | 10 May 2016 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 - | 06 May 2016 | 06 May 2016 | 000-16244 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2016 | 29 Apr 2016 | 000-01649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2015 | 19 May 2015 | 000-01649 |
| 4 | Open Document | Open Filing | FORM 4 - | 15 May 2015 | 14 May 2015 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 May 2015 | 08 May 2015 | 001-33612 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2015 | 03 Mar 2015 | 000-01649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2015 | 13 Feb 2015 | 000-01649 |
| 4 | Open Document | Open Filing | FORM 4 - | 12 Dec 2014 | 12 Dec 2014 | 000-16244 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2014 | 28 Aug 2014 | 000-01649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2014 | 19 May 2014 | 000-01649 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 May 2014 | 08 May 2014 | 001-33612 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 May 2014 | 07 May 2014 | 000-16244 |
| 4 | Open Document | Open Filing | POWER OF ATTORNEY | 10 Feb 2014 | 10 Feb 2014 | 001-33612 |