Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,944 | $421 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 4,419 | $496 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 5,154 | $505 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 6,958 | $612 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 12,104 | $1 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 11,894 | $1 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 12,064 | $1 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 5,750 | $0 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 5,204 | $0 | $76.85 | $70.86 - $83.00 |
| Q3 2023 | 5,769 | $0 | $75.50 | $70.24 - $81.40 |
| Q2 2023 | 6,047 | $0 | $73.54 | $66.83 - $82.59 |
| Q1 2023 | 5,857 | $0 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 3,965 | $0 | $68.37 | $63.90 - $71.73 |
| Q2 2016 | 682 | $64 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 599 | $50 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 454 | $38 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 595 | $50 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 188 | $15 | $68.50 | $61.65 - $80.34 |
| Q1 2015 | 147 | $9 | $61.65 | $56.04 - $67.90 |
| Q4 2014 | 145 | $8 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 174 | $11 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 180 | $13 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 180 | $14 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 180 | $14 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 629 | $44 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 329 | $24 | $76.01 | $70.25 - $80.50 |