Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2016 | 1,740 | $146 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 1,740 | $144 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 1,740 | $147 | $81.19 | $74.57 - $88.00 |