Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2014 | 2,750 | $200 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 2,750 | $215 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 2,750 | $221 | $73.58 | $67.32 - $81.00 |