Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2019 | 2,457 | $218 | $87.02 | $80.39 - $92.37 |
| Q3 2019 | 2,408 | $214 | $90.44 | $82.38 - $97.82 |
| Q1 2019 | 2,569 | $279 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 2,569 | $301 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 2,637 | $342 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 2,635 | $327 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 2,661 | $250 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 2,660 | $265 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 2,594 | $277 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 2,594 | $287 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 2,611 | $266 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 3,417 | $364 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 2,587 | $228 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 2,587 | $245 | $87.97 | $81.96 - $94.35 |