Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 30,530 | $3,259 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 30,530 | $3,424 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 40,743 | $3,991 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 52,823 | $4,644 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 93,418 | $9,194 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 81,058 | $6,091 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 77,558 | $5,827 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 74,718 | $6,261 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 112,428 | $9,026 | $76.85 | $70.86 - $83.00 |
| Q3 2023 | 112,608 | $8,160 | $75.50 | $70.24 - $81.40 |
| Q2 2023 | 112,608 | $8,243 | $73.54 | $66.83 - $82.59 |
| Q1 2023 | 117,838 | $8,495 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 114,938 | $7,869 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 116,788 | $7,597 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 133,638 | $8,772 | $70.97 | $59.99 - $79.31 |
| Q1 2022 | 130,168 | $10,016 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 113,573 | $9,316 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 80,463 | $6,604 | $89.68 | $79.78 - $103.69 |
| Q2 2021 | 70,048 | $7,120 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 63,313 | $6,462 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 56,225 | $4,972 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 42,295 | $3,462 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 57,025 | $4,983 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 61,035 | $4,322 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 80,565 | $7,121 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 62,215 | $5,543 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 60,305 | $5,626 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 49,835 | $5,410 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 25,825 | $3,019 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 30,674 | $3,977 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 22,129 | $2,744 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 12,330 | $1,156 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 12,212 | $1,214 | $109.11 | $95.50 - $121.40 |