Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2020 | 1,540 | $109 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 1,540 | $136 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 1,500 | $134 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 1,500 | $140 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 1,470 | $160 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 1,450 | $170 | $125.24 | $109.50 - $133.95 |
| Q2 2018 | 1,420 | $176 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 2,650 | $248 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 2,650 | $264 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 2,610 | $278 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 1,910 | $211 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 7,760 | $793 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 7,760 | $825 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 7,660 | $673 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 7,650 | $722 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 3,220 | $270 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 980 | $81 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 970 | $82 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 930 | $75 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 900 | $57 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 1,300 | $75 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 1,300 | $79 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 1,200 | $87 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 1,200 | $94 | $78.13 | $73.04 - $84.00 |