Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 54,741 | $5,844 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 51,336 | $5,757 | $106.18 | $94.71 - $117.46 |
| Q1 2025 | 5,072 | $446 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 16,359 | $1,610 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 47,936 | $3,602 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 29,604 | $2,224 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 10,801 | $905 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 5,465 | $439 | $76.85 | $70.86 - $83.00 |
| Q2 2023 | 16,184 | $1,185 | $73.54 | $66.83 - $82.59 |
| Q4 2022 | 3,075 | $0 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 8,924 | $581 | $69.19 | $63.06 - $78.78 |
| Q1 2022 | 2,757 | $212 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 3,418 | $280 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 6,626 | $544 | $89.68 | $79.78 - $103.69 |
| Q4 2019 | 6,799 | $601 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 14,010 | $1,248 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 3,062 | $286 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 14,777 | $1,604 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 4,640 | $543 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 7,159 | $928 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 8,800 | $1,091 | $107.98 | $92.00 - $136.65 |
| Q4 2017 | 3,060 | $304 | $109.11 | $95.50 - $121.40 |
| Q2 2017 | 3,014 | $333 | $105.57 | $98.05 - $112.45 |
| Q4 2016 | 4,414 | $470 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 4,560 | $400 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 4,560 | $430 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 5,738 | $481 | $80.09 | $72.30 - $88.00 |
| Q3 2015 | 3,326 | $280 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 6,259 | $503 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 7,078 | $449 | $61.65 | $56.04 - $67.90 |
| Q3 2014 | 4,351 | $264 | $66.40 | $60.68 - $75.50 |
| Q1 2014 | 10,269 | $801 | $78.13 | $73.04 - $84.00 |