CUSIP: 637071101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2015 | 218,181 | $10,907 | — | — |
| Q4 2014 | 2,238,213 | $146,670 | — | — |
| Q3 2014 | 2,025,717 | $154,157 | — | — |
| Q2 2014 | 3,908,014 | $321,825 | — | — |
| Q1 2014 | 3,484,250 | $271,319 | — | — |
| Q4 2013 | 3,307,247 | $263,025 | — | — |
| Q3 2013 | 2,334,965 | $182,384 | — | — |