| Filed On | Filing |
|---|---|
| 14 Feb 2019 | SC 13G/A |
| 14 Feb 2018 | SC 13G/A |
| 07 Feb 2017 | SC 13G/A |
| 10 Feb 2016 | NAUH AS OF 01/31/2016 |
| 08 Feb 2016 | NAUH AS OF 12/31/2015 |
| 10 Feb 2015 | NAUH AS OF 12/31/2014 |
| 10 Feb 2014 | SCHEDULE 13G AMENDMENT NO. 3 |
| 10 Feb 2014 | NAUH AS OF 12/31/2013 |
| 30 Oct 2013 | NAUH BELOW 5% |
| 14 Feb 2013 | AMENDMENT #3 |
| 13 Feb 2013 | SC 13G/A |
| 11 Feb 2013 | SCHEDULE 13G AMENDMENT NO. 2 |
| 08 Feb 2013 | NAUH AS OF 12/31/12 |
| 22 Jan 2013 | NAUH ANNUAL FILING 2012 |
| 22 Feb 2012 | NAUH ANNUAL REPORT |
| 14 Feb 2012 | AMENDMENT #2 |
| 10 Feb 2012 | SC 13G/A |
| 09 Feb 2012 | NAUH AS OF 12/31/11 |
| 08 Feb 2012 | SCHEDULE 13G AMENDMENT NO. 1 |
| 10 Feb 2011 | NAUH AS OF 12/31/10 |
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