Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2021 | 2,541 | $258 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 10,400 | $1,062 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 11,347 | $1,003 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 11,547 | $945 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 11,247 | $983 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 11,047 | $782 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 9,547 | $844 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 9,795 | $873 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 8,540 | $797 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 5,792 | $629 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 8,499 | $994 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 9,420 | $1,221 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 6,212 | $770 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 6,100 | $572 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 6,100 | $607 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 6,100 | $649 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 6,600 | $729 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 6,600 | $675 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 13,600 | $1,447 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 18,300 | $1,607 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 19,200 | $1,812 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 21,200 | $1,775 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 23,000 | $1,906 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 24,200 | $2,039 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 20,100 | $1,614 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 23,400 | $1,489 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 23,400 | $1,489 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 22,200 | $1,348 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 20,700 | $1,508 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 18,100 | $1,355 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 19,500 | $1,577 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 17,301 | $1,218 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 13,901 | $1,001 | $76.01 | $70.25 - $80.50 |