| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Jan 2024 | 30 Jan 2024 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Dec 2022 | 15 Dec 2022 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jan 2021 | 12 Jan 2021 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Mar 2018 | 01 Mar 2018 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 May 2017 | 02 May 2017 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Feb 2017 | 16 Feb 2017 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Mar 2016 | 16 Mar 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Mar 2016 | 11 Mar 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Mar 2016 | 08 Mar 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Mar 2016 | 03 Mar 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2016 | 29 Feb 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Feb 2016 | 24 Feb 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2016 | 19 Feb 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Feb 2016 | 16 Feb 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Feb 2016 | 11 Feb 2016 | 000-22873 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2016 | 10 Feb 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Feb 2016 | 05 Feb 2016 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jul 2015 | 09 Jul 2015 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Feb 2015 | 12 Feb 2015 | 000-22873 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 15 Jul 2014 | 08 Jul 2014 | 001-35642 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Jul 2014 | 08 Jul 2014 | 001-35642 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 01 Jul 2014 | 01 Jul 2014 | 001-35642 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 13 Feb 2014 | 11 Feb 2014 | 000-22873 |