Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 9 | $1 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 8 | $1 | $106.18 | $94.71 - $117.46 |
| Q4 2017 | 2 | $0 | $109.11 | $95.50 - $121.40 |