| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2022 | May 6, 2022 | 001-38911 |
| 4 | Open Document | Open Filing | FORM 4 | May 10, 2021 | May 6, 2021 | 001-38911 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 31, 2020 | Dec 30, 2020 | 001-38911 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 2, 2015 | Nov 30, 2015 | 000-53654 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 2, 2015 | Nov 30, 2015 | 000-53653 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2015 | Jun 1, 2015 | 000-53654 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2015 | Jun 1, 2015 | 000-53653 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2015 | Feb 19, 2015 | 000-53654 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2015 | Feb 19, 2015 | 000-53653 |
| 4 | Open Document | Open Filing | NERAL.FORM4.SCC2014 | Oct 30, 2014 | Mar 31, 2014 | 000-53653 |
| 4 | Open Document | Open Filing | NERAL.FORM4.SCCII2014 | Oct 30, 2014 | Mar 31, 2014 | 000-53654 |
| 4 | Open Document | Open Filing | NERAL.FORM4.SCC | Jun 3, 2014 | Jun 1, 2014 | 000-53653 |
| 4 | Open Document | Open Filing | NERAL.FORM4.SCCII | Jun 3, 2014 | Jun 1, 2014 | 000-53654 |