Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2016 | 200 | $16,748 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 225 | $18,644 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 225 | $18,959 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 275 | $22,088 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 275 | $17,432 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 275 | $15,961 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 275 | $16,695 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 275 | $20,031 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 275 | $21,461 | $78.13 | $73.04 - $84.00 |