Ticker: NPK CUSIP: 637215104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 7,167 | $1 | $104.80 | $91.28 - $120.49 |
| Q3 2025 | 8,680 | $1 | $106.18 | $94.71 - $117.46 |
| Q2 2025 | 5,728 | $1 | $87.38 | $77.63 - $100.17 |
| Q1 2025 | 1,223 | $0 | $95.29 | $85.21 - $103.93 |
| Q4 2024 | 1,269 | $0 | $80.38 | $69.80 - $99.07 |
| Q3 2024 | 2,568 | $0 | $74.60 | $69.58 - $79.26 |
| Q1 2024 | 1,634 | $0 | $79.07 | $73.97 - $84.29 |
| Q4 2022 | 2,866 | $0 | $68.37 | $63.90 - $71.73 |
| Q4 2021 | 3,598 | $295 | $83.82 | $78.33 - $89.50 |
| Q3 2021 | 6,439 | $529 | $89.68 | $79.78 - $103.69 |
| Q3 2020 | 5,002 | $409 | $87.32 | $81.09 - $95.66 |
| Q2 2020 | 2,593 | $227 | $85.05 | $68.17 - $97.90 |
| Q1 2020 | 3,403 | $241 | $84.26 | $66.60 - $93.99 |
| Q3 2019 | 27,534 | $2,453 | $90.44 | $82.38 - $97.82 |
| Q2 2019 | 3,693 | $345 | $101.82 | $89.24 - $112.50 |
| Q1 2019 | 3,953 | $429 | $116.40 | $99.24 - $133.12 |
| Q4 2018 | 2,628 | $307 | $125.24 | $109.50 - $133.95 |
| Q3 2018 | 2,381 | $309 | $126.95 | $115.25 - $140.32 |
| Q2 2018 | 1,949 | $242 | $107.98 | $92.00 - $136.65 |
| Q3 2017 | 1,008 | $107 | $105.66 | $95.65 - $114.70 |
| Q3 2016 | 1,302 | $114 | $90.73 | $85.13 - $96.25 |
| Q1 2016 | 1,268 | $106 | $80.09 | $72.30 - $88.00 |