| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2021 | 10 May 2021 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 May 2021 | 07 May 2021 | 001-13879 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 02 Mar 2021 | 22 Feb 2021 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Feb 2021 | 22 Feb 2021 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2020 | 02 Jun 2020 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Feb 2020 | 24 Feb 2020 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Nov 2019 | 12 Nov 2019 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2019 | 04 Jun 2019 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Feb 2019 | 25 Feb 2019 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Feb 2019 | 22 Feb 2019 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2018 | 05 Jun 2018 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Feb 2018 | 26 Feb 2018 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2018 | 20 Feb 2018 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Nov 2017 | 28 Nov 2017 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Mar 2017 | 17 Mar 2017 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2017 | 21 Feb 2017 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Feb 2017 | 17 Feb 2017 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Nov 2016 | 18 Nov 2016 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2016 | 02 Mar 2016 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Feb 2016 | 22 Feb 2016 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 May 2015 | 11 May 2015 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Feb 2015 | 24 Feb 2015 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Feb 2015 | 23 Feb 2015 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 - CATHY HESSNER | 27 Feb 2014 | 27 Feb 2014 | 001-13879 |
| 4 | Open Document | Open Filing | FORM 4 - CATHY HESSNER | 18 Feb 2014 | 18 Feb 2014 | 001-13879 |