Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 7 | $1 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 7 | $1 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 7 | $1 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 1 | $0 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 1 | $0 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 1 | $0 | $74.60 | $69.58 - $79.26 |
| Q2 2024 | 1 | $0 | $78.76 | $72.07 - $86.08 |
| Q1 2024 | 1 | $0 | $79.07 | $73.97 - $84.29 |
| Q4 2023 | 1 | $0 | $76.85 | $70.86 - $83.00 |
| Q3 2023 | 16 | $1 | $75.50 | $70.24 - $81.40 |
| Q2 2023 | 24 | $2 | $73.54 | $66.83 - $82.59 |
| Q1 2023 | 24 | $2 | $72.97 | $67.77 - $81.50 |
| Q4 2022 | 24 | $2 | $68.37 | $63.90 - $71.73 |
| Q3 2022 | 24 | $2 | $69.19 | $63.06 - $78.78 |
| Q2 2022 | 5 | $0 | $70.97 | $59.99 - $79.31 |
| Q4 2021 | 1 | $0 | $83.82 | $78.33 - $89.50 |
| Q2 2021 | 1 | $0 | $103.08 | $97.03 - $107.89 |
| Q1 2020 | 5 | $0 | $84.26 | $66.60 - $93.99 |
| Q3 2019 | 5 | $0 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 5 | $0 | $101.82 | $89.24 - $112.50 |
| Q4 2018 | 3 | $0 | $125.24 | $109.50 - $133.95 |