Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2024 | 258 | $22 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 339 | $27 | $76.85 | $70.86 - $83.00 |
| Q3 2023 | 339 | $25 | $75.50 | $70.24 - $81.40 |
| Q2 2023 | 251 | $18 | $73.54 | $66.83 - $82.59 |
| Q1 2023 | 251 | $18 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 333 | $23 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 333 | $22 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 333 | $22 | $70.97 | $59.99 - $79.31 |
| Q1 2022 | 333 | $26 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 1,209 | $99 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 1,737 | $143 | $89.68 | $79.78 - $103.69 |
| Q2 2021 | 1,737 | $177 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 1,737 | $177 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 1,737 | $154 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 1,737 | $142 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 1,737 | $152 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 1,737 | $123 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 1,737 | $154 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 1,737 | $155 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 1,737 | $162 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 1,737 | $189 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 1,737 | $203 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 1,737 | $225 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 1,737 | $215,388 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 1,737 | $162,844 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 1,737 | $173 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 3,674 | $391 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 3,674 | $406 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 3,668 | $375 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 3,668 | $390 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 3,827 | $336 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 3,668 | $346 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 3,668 | $307 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 3,819 | $316 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 3,819 | $322 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 3,831 | $308 | $68.50 | $61.65 - $80.34 |
| Q4 2014 | 4,034 | $234 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 4,034 | $245 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 4,034 | $294 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 4,034 | $315 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 4,032 | $325 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 4,018 | $283 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 4,019 | $289 | $76.01 | $70.25 - $80.50 |