| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 30 May 2023 | 25 May 2023 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 13 May 2022 | 12 May 2022 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 24 May 2021 | 20 May 2021 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2020 | 22 May 2020 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 24 May 2019 | 23 May 2019 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 29 May 2018 | 24 May 2018 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2017 | 18 May 2017 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Nov 2016 | 08 Nov 2016 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2016 | 04 Aug 2016 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2016 | 19 May 2016 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2016 | 05 May 2016 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Feb 2016 | 26 Feb 2016 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Nov 2015 | 06 Nov 2015 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Aug 2015 | 07 Aug 2015 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2015 | 21 May 2015 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2015 | 08 May 2015 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Feb 2015 | 24 Feb 2015 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Nov 2014 | 31 Oct 2014 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2014 | 01 Aug 2014 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 27 May 2014 | 22 May 2014 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 01 May 2014 | 30 Apr 2014 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2014 | 25 Feb 2014 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Nov 2013 | 31 Oct 2013 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Jul 2013 | 31 Jul 2013 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 28 May 2013 | 23 May 2013 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 03 May 2013 | 01 May 2013 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2013 | 27 Feb 2013 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Nov 2012 | 05 Nov 2012 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Aug 2012 | 06 Aug 2012 | 001-13179 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 30 May 2012 | 17 May 2012 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 May 2012 | 17 May 2012 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 May 2012 | 07 May 2012 | 001-13179 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Feb 2012 | 28 Feb 2012 | 001-13179 |