Ticker: NAT CUSIP: G65773106 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2018 | 18,574 | $37 | $2.60 | $1.96 - $3.47 |
| Q3 2018 | 10,179 | $21 | $2.30 | $1.95 - $2.99 |
| Q2 2018 | 10,079 | $27 | $2.21 | $1.82 - $3.00 |
| Q1 2018 | 12,297 | $24 | $2.29 | $1.82 - $2.68 |
| Q4 2017 | 44,197 | $109 | $4.14 | $2.45 - $5.84 |
| Q2 2017 | 9,350 | $59 | $7.03 | $5.43 - $8.61 |
| Q1 2017 | 31,950 | $261 | $8.27 | $7.65 - $9.32 |
| Q4 2016 | 62,902 | $528 | $8.89 | $7.51 - $10.07 |
| Q3 2016 | 24,295 | $246 | $11.62 | $9.77 - $14.30 |
| Q2 2016 | 1,500 | $21 | $14.56 | $13.04 - $16.05 |
| Q1 2016 | 8,096 | $114 | $13.31 | $9.86 - $15.45 |
| Q4 2015 | 500 | $8 | $15.16 | $13.64 - $16.88 |
| Q3 2015 | 1,000 | $15 | $14.89 | $12.21 - $17.31 |
| Q2 2015 | 3,000 | $43 | $12.81 | $11.11 - $14.88 |
| Q1 2015 | 3,000 | $36 | $10.57 | $9.08 - $11.98 |
| Q4 2014 | 500 | $5 | $8.58 | $6.89 - $10.34 |