Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2025 | 2,181 | $214 | $87.38 | $77.63 - $100.17 |
| Q4 2024 | 2,468 | $243 | $80.38 | $69.80 - $99.07 |
| Q2 2021 | 51,456 | $5,231 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 40,865 | $4,171 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 31,187 | $2,758 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 22,367 | $1,831 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 19,149 | $1,673 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 20,027 | $1,418 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 18,635 | $1,647 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 16,175 | $1,441 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 10,472 | $977 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 11,287 | $1,225 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 9,418 | $1,101 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 8,632 | $1,119 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 9,224 | $1,144 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 9,041 | $848 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 8,671 | $862 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 8,145 | $867 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 8,062 | $891 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 7,459 | $762 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 5,622 | $598 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 6,007 | $527 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 5,082 | $479 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 4,323 | $362 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 4,976 | $412 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 3,204 | $270 | $81.19 | $74.57 - $88.00 |