Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 264 | $28 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 219 | $25 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 940 | $92 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 118 | $10 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 220 | $22 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 1,218 | $92 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 2,604 | $196 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 112 | $9 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 223 | $18 | $76.85 | $70.86 - $83.00 |
| Q3 2023 | 526 | $38 | $75.50 | $70.24 - $81.40 |
| Q2 2023 | 1,106 | $81 | $73.54 | $66.83 - $82.59 |
| Q1 2023 | 139 | $0 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 343 | $0 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 131 | $9 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 190 | $12 | $70.97 | $59.99 - $79.31 |
| Q1 2022 | 5,289 | $407 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 244 | $20 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 230 | $19 | $89.68 | $79.78 - $103.69 |
| Q2 2021 | 208 | $22 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 231 | $24 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 2,057 | $182 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 3,366 | $276 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 4,084 | $356 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 102 | $7 | $84.26 | $66.60 - $93.99 |
| Q3 2019 | 259 | $23 | $90.44 | $82.38 - $97.82 |
| Q1 2019 | 686 | $74 | $116.40 | $99.24 - $133.12 |
| Q3 2018 | 676 | $88 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 601 | $75 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 1,062 | $100 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 1,470 | $146 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 369 | $39 | $105.66 | $95.65 - $114.70 |
| Q4 2016 | 256 | $27 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 80 | $7 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 218 | $21 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 100 | $8 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 710 | $59 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 100 | $8 | $81.19 | $74.57 - $88.00 |
| Q4 2014 | 699 | $41 | $59.42 | $54.07 - $63.69 |
| Q3 2014 | 843 | $51 | $66.40 | $60.68 - $75.50 |
| Q2 2014 | 200 | $15 | $71.81 | $67.09 - $77.75 |
| Q1 2014 | 100 | $8 | $78.13 | $73.04 - $84.00 |
| Q4 2013 | 200 | $16 | $73.58 | $67.32 - $81.00 |
| Q3 2013 | 377 | $27 | $72.80 | $68.50 - $77.50 |
| Q2 2013 | 300 | $22 | $76.01 | $70.25 - $80.50 |