Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2018 | 5,551 | $520 | $99.25 | $88.80 - $108.45 |
| Q4 2017 | 4,956 | $493 | $109.11 | $95.50 - $121.40 |
| Q3 2017 | 4,676 | $498 | $105.66 | $95.65 - $114.70 |
| Q2 2017 | 4,655 | $514 | $105.57 | $98.05 - $112.45 |