Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2021 | 800 | $81 | $103.08 | $97.03 - $107.89 |
| Q4 2020 | 800 | $71 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 800 | $65 | $87.32 | $81.09 - $95.66 |
| Q1 2020 | 809 | $58 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 709 | $63 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 800 | $75 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 800 | $75 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 1,000 | $109 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 1,000 | $117 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 1,000 | $130 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 1,000 | $122 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 1,078 | $101 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 1,078 | $107 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 1,141 | $121 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 1,141 | $126 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 1,063 | $109 | $103.21 | $91.75 - $112.00 |
| Q3 2016 | 463 | $41 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 463 | $44 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 463 | $39 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 400 | $33 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 400 | $34 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 400 | $32 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 400 | $26 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 400 | $24 | $59.42 | $54.07 - $63.69 |
| Q4 2013 | 400 | $32 | $73.58 | $67.32 - $81.00 |