| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2022 | 01 Mar 2022 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2021 | 01 Mar 2021 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2020 | 01 Mar 2020 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Mar 2019 | 01 Mar 2019 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2018 | 01 Mar 2018 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2017 | 01 Mar 2017 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2016 | 01 Mar 2016 | 001-12691 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2015 | 01 Mar 2015 | 001-12691 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2014 | 22 Dec 2014 | 000-51638 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 May 2014 | 06 May 2014 | 001-33147 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Mar 2014 | 01 Mar 2014 | 001-12691 |
| SC 13D | Open Document | Open Filing | 14 Feb 2014 | |||
| 4 | Open Document | Open Filing | FORM 4 | 06 Jan 2014 | 02 Jan 2014 | 001-32212 |