Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2018 | 5,302 | $657 | $107.98 | $92.00 - $136.65 |
| Q1 2018 | 5,302 | $497 | $99.25 | $88.80 - $108.45 |
| Q3 2017 | 9,603 | $1,022 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 9,603 | $1,061 | $105.57 | $98.05 - $112.45 |
| Q1 2017 | 9,603 | $981 | $103.21 | $91.75 - $112.00 |
| Q4 2016 | 9,603 | $1,022 | $93.06 | $83.53 - $108.75 |
| Q3 2016 | 9,603 | $843 | $90.73 | $85.13 - $96.25 |
| Q2 2016 | 9,603 | $906 | $87.97 | $81.96 - $94.35 |
| Q1 2016 | 6,704 | $561 | $80.09 | $72.30 - $88.00 |
| Q4 2015 | 6,703 | $555 | $86.71 | $78.13 - $94.18 |
| Q3 2015 | 6,703 | $599 | $81.19 | $74.57 - $88.00 |
| Q2 2015 | 6,403 | $519 | $68.50 | $61.65 - $80.34 |