CUSIP: 638620104 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2011 | 1,000 | $41 | — | — |
| Q1 2011 | 1,000 | $43 | — | — |
| Q4 2010 | 500 | $18 | — | — |
| Q1 2010 | 500 | $18 | — | — |
| Q4 2009 | 500 | $18 | — | — |
| Q3 2009 | 500 | $15 | — | — |
| Q2 2009 | 500 | $13 | — | — |
| Q1 2009 | 500 | $11 | — | — |