Ticker: NAT CUSIP: G65773106 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2015 | 4,230 | $64 | $14.89 | $12.21 - $17.31 |
| Q2 2015 | 40,790 | $580 | $12.81 | $11.11 - $14.88 |
| Q1 2015 | 44,430 | $529 | $10.57 | $9.08 - $11.98 |
| Q4 2014 | 44,430 | $447 | $8.58 | $6.89 - $10.34 |
| Q3 2014 | 22,405 | $178 | $8.73 | $7.89 - $9.44 |