Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2023 | 4,800 | $346 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 4,800 | $329 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 5,200 | $335 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 5,200 | $341 | $70.97 | $59.99 - $79.31 |
| Q1 2022 | 10,100 | $777 | $81.17 | $76.40 - $89.05 |
| Q4 2021 | 18,100 | $1,485 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 18,100 | $1,486 | $89.68 | $79.78 - $103.69 |
| Q2 2021 | 18,100 | $1,746 | $103.08 | $97.03 - $107.89 |
| Q1 2021 | 18,100 | $1,847 | $98.38 | $86.66 - $117.87 |
| Q4 2020 | 18,100 | $1,601 | $85.92 | $79.49 - $94.30 |
| Q3 2020 | 20,600 | $1,686 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 20,600 | $1,800 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 18,900 | $1,338 | $84.26 | $66.60 - $93.99 |
| Q4 2019 | 18,900 | $1,671 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 18,900 | $1,684 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 18,900 | $1,763 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 23,100 | $2,508 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 31,700 | $3,706 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 37,300 | $4,836 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 38,300 | $4,749 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 21,800 | $2,044 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 21,800 | $2,168 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 21,800 | $2,321 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 21,800 | $2,409 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 21,800 | $2,228 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 21,800 | $2,320 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 21,800 | $1,914 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 18,300 | $1,727 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 12,000 | $1,005 | $80.09 | $72.30 - $88.00 |