CUSIP: 63934E108 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2017 | 1,233,268 | $54,350 | — | — |
| Q2 2017 | 1,350,368 | $35,420 | — | — |
| Q1 2017 | 1,408,368 | $34,674 | — | — |
| Q4 2016 | 1,574,468 | $49,391 | — | — |