Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2022 | 10,480 | $721 | $68.37 | $63.90 - $71.73 |
| Q2 2021 | 2,687 | $274 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 2,635 | $277 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 2,711 | $250 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 930 | $78 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 1,228 | $101 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 787 | $58 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 1,464 | $129 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 3,331 | $297 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 3,516 | $328 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 3,214 | $349 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 3,090 | $361 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 2,960 | $384 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 2,961 | $367 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 2,926 | $275 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 4,914 | $488 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 4,961 | $529 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 4,880 | $538 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 889 | $91 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 1,087 | $103 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 1,040 | $92 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 1,040 | $99 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 971 | $81 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 806 | $67 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 861 | $73 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 731 | $59 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 1,251 | $79 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 1,661 | $97 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 2,295 | $139 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 1,784 | $130 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 1,694 | $132 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 1,694 | $137 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 1,694 | $119 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 139 | $10 | $76.01 | $70.25 - $80.50 |