Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 19,010 | $2,030 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 19,095 | $2,142 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 19,120 | $1,873 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 19,395 | $1,705 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 19,795 | $1,948 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 19,915 | $1,496 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 20,670 | $1,553 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 20,530 | $1,720 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 20,585 | $1,653 | $76.85 | $70.86 - $83.00 |
| Q3 2023 | 21,165 | $1,534 | $75.50 | $70.24 - $81.40 |
| Q2 2023 | 21,442 | $1,570 | $73.54 | $66.83 - $82.59 |
| Q1 2023 | 21,492 | $1,549 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 21,482 | $1,471 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 22,817 | $1,484 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 23,605 | $1,549 | $70.97 | $59.99 - $79.31 |
| Q1 2022 | 22,720 | $1,748 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 20,640 | $1,693 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 20,750 | $1,703 | $89.68 | $79.78 - $103.69 |
| Q2 2021 | 20,030 | $2,036 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 20,080 | $2,050 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 21,125 | $1,868 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 20,745 | $1,698 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 22,765 | $1,989 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 23,035 | $1,631 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 24,020 | $2,123 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 25,655 | $2,286 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 26,275 | $2,451 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 26,375 | $2,863 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 20,050 | $2,344 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 19,570 | $2,537 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 19,955 | $2,474 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 18,500 | $1,734 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 15,920 | $1,583 | $109.11 | $95.50 - $121.40 |