Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 9,123 | $974 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 9,123 | $1,023 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 20,778 | $2,035 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 14,472 | $1,272 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 14,472 | $1,424 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 8,070 | $606 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 8,309 | $624 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 2,452 | $205 | $79.07 | $73.97 - $84.29 |
| Q3 2022 | 3,258 | $211,933 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 3,258 | $213,856 | $70.97 | $59.99 - $79.31 |
| Q1 2022 | 3,258 | $250,703 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 3,258 | $267,254 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 3,258 | $267,417 | $89.68 | $79.78 - $103.69 |
| Q2 2021 | 5,411 | $550,027 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 5,035 | $513,922 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 2,921 | $258,305 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 2,921 | $239,113 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 2,921 | $255,267 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 3,661 | $259,235 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 2,827 | $249,879 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 2,813 | $250,610 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 15 | $1,399 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 15 | $1,628 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 15 | $1,754 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 15 | $1,945 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 15 | $1,860 | $107.98 | $92.00 - $136.65 |
| Q2 2016 | 2,200 | $208 | $87.97 | $81.96 - $94.35 |