Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2014 | 5,530 | $335,726 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 5,630 | $410,089 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 6,350 | $495,554 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 6,720 | $540,960 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 6,570 | $462,594 | $72.80 | $68.50 - $77.50 |