Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2016 | 23,415 | $1,960 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 23,415 | $1,940 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 46,330 | $3,903 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 47,455 | $3,811 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 47,455 | $3,008 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 47,455 | $2,754 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 57,950 | $3,518 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 57,950 | $4,221 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 57,950 | $4,522 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 57,900 | $4,660 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 57,900 | $4,076 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 57,900 | $4,170 | $76.01 | $70.25 - $80.50 |