| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 7, 2021 | May 5, 2021 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2021 | Mar 9, 2021 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 8, 2021 | Mar 4, 2021 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2021 | Mar 3, 2021 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2021 | Feb 21, 2021 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 | Sep 11, 2020 | Sep 9, 2020 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 17, 2020 | Aug 13, 2020 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2020 | May 20, 2020 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 7, 2020 | May 5, 2020 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 31, 2020 | Feb 14, 2020 | 001-31321 | 
| 4/A | Open Document | Open Filing | Sep 19, 2019 | Sep 9, 2019 | 001-31321 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 10, 2019 | Sep 6, 2019 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 15, 2019 | May 14, 2019 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 8, 2019 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 1, 2018 | Apr 28, 2018 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2018 | Mar 6, 2018 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2018 | Feb 21, 2018 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 13, 2017 | Nov 10, 2017 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 5, 2017 | May 4, 2017 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 1, 2017 | Feb 27, 2017 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 16, 2017 | Feb 14, 2017 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 16, 2016 | May 12, 2016 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 29, 2016 | Feb 25, 2016 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 25, 2016 | Feb 25, 2016 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2016 | Feb 9, 2016 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2015 | May 15, 2015 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 30, 2015 | Apr 28, 2015 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2015 | Feb 26, 2015 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 14, 2014 | May 12, 2014 | 001-31321 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 18, 2014 | Feb 13, 2014 | 001-31321 |