Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 53,971 | $5,516 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 121,363 | $12,913 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 122,886 | $10,788 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 124,818 | $11,777 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 127,513 | $10,678 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 128,428 | $10,642 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 131,306 | $11,064 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 132,639 | $10,654 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 134,329 | $8,515 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 127,732 | $7,414 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 130,416 | $7,917,555 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 124,751 | $9,087 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 123,098 | $9,607 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 122,590 | $9,868 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 122,288 | $8,610 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 122,796 | $8,845 | $76.01 | $70.25 - $80.50 |