| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 11 May 2022 | 10 May 2022 | 001-04949 | |
| 4 | Open Document | Open Filing | 13 May 2021 | 11 May 2021 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jan 2021 | 07 Jan 2021 | 001-35322 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2020 | 21 May 2020 | 001-35322 |
| 4 | Open Document | Open Filing | 13 May 2020 | 12 May 2020 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Mar 2020 | 13 Mar 2020 | 001-35322 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2019 | 16 May 2019 | 001-35322 |
| 4 | Open Document | Open Filing | 16 May 2019 | 14 May 2019 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2018 | 17 May 2018 | 001-35322 |
| 4 | Open Document | Open Filing | 08 May 2018 | 08 May 2018 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2017 | 18 May 2017 | 001-35322 |
| 4 | Open Document | Open Filing | 09 May 2017 | 09 May 2017 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 | 30 Nov 2016 | 28 Nov 2016 | 001-04949 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 May 2016 | 19 May 2016 | 001-35322 |
| 4 | Open Document | Open Filing | 20 May 2016 | 19 May 2016 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2015 | 21 May 2015 | 001-35322 |
| 4 | Open Document | Open Filing | 21 May 2015 | 19 May 2015 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2015 | 29 Apr 2015 | 001-07436 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2015 | 29 Apr 2015 | 001-08198 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 May 2014 | 22 May 2014 | 001-35322 |
| 4 | Open Document | Open Filing | 22 May 2014 | 20 May 2014 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2013 | 22 May 2013 | 001-35322 |
| 4 | Open Document | Open Filing | 22 May 2013 | 20 May 2013 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2012 | 31 May 2012 | 001-35322 |
| 4 | Open Document | Open Filing | 14 May 2012 | 10 May 2012 | 001-04949 | |
| 5 | Open Document | Open Filing | 06 Feb 2012 | 31 Dec 2011 | 001-04949 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Jan 2012 | 19 Jan 2012 | 001-35322 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 03 Jan 2012 | 31 Dec 2011 | 001-35322 |