Ticker: NGS CUSIP: 63886Q109 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 14,156 | $476 | $29.70 | $25.36 - $34.47 |
| Q3 2021 | 21,561 | $224 | $9.70 | $8.82 - $10.76 |
| Q2 2021 | 24,406 | $251 | $9.89 | $8.77 - $11.52 |
| Q1 2021 | 21,939 | $207 | $9.42 | $7.92 - $10.65 |
| Q4 2020 | 19,265 | $183 | $9.94 | $8.27 - $12.10 |
| Q3 2020 | 19,354 | $164 | $7.49 | $6.05 - $10.02 |
| Q2 2020 | 65,026 | $407 | $5.74 | $3.96 - $8.23 |
| Q1 2020 | 98,485 | $440 | $9.28 | $2.59 - $13.00 |
| Q4 2019 | 103,346 | $1,267 | $11.66 | $10.44 - $12.91 |
| Q3 2019 | 58,731 | $752 | $13.56 | $10.11 - $16.51 |
| Q2 2019 | 42,747 | $705 | $16.22 | $14.71 - $18.54 |
| Q1 2019 | 42,791 | $741 | $17.65 | $15.90 - $19.02 |
| Q4 2018 | 46,200 | $760 | $18.94 | $15.26 - $20.99 |
| Q3 2018 | 52,694 | $1,112 | $21.85 | $20.28 - $24.24 |
| Q2 2018 | 56,481 | $1,333 | $23.87 | $21.47 - $26.42 |
| Q1 2018 | 44,653 | $1,065 | $26.44 | $22.81 - $29.04 |
| Q4 2017 | 51,838 | $1,358 | $26.38 | $23.89 - $29.04 |
| Q3 2017 | 50,772 | $1,442 | $24.49 | $22.26 - $29.24 |
| Q2 2017 | 51,753 | $1,286 | $26.24 | $22.26 - $28.69 |
| Q1 2017 | 48,707 | $1,269 | $27.74 | $23.30 - $33.05 |
| Q4 2016 | 41,694 | $1,340 | $27.19 | $20.43 - $34.13 |
| Q3 2016 | 33,858 | $833 | $24.06 | $21.50 - $26.46 |
| Q2 2016 | 29,926 | $685 | $22.14 | $19.61 - $25.27 |
| Q1 2016 | 26,974 | $583 | $18.82 | $15.79 - $22.57 |
| Q4 2015 | 43,561 | $971 | $21.48 | $18.28 - $24.21 |
| Q3 2015 | 25,175 | $486 | $20.31 | $18.37 - $22.64 |
| Q2 2015 | 24,176 | $552 | $23.06 | $19.10 - $25.82 |
| Q1 2015 | 21,716 | $417 | $19.65 | $17.69 - $23.12 |
| Q4 2014 | 15,984 | $368 | $23.39 | $20.44 - $26.73 |
| Q3 2014 | 18,468 | $445 | $28.91 | $23.00 - $33.65 |
| Q2 2014 | 17,388 | $575 | $30.73 | $28.13 - $34.48 |
| Q1 2014 | 29,984 | $904 | $29.49 | $25.23 - $34.59 |
| Q4 2013 | 20,945 | $577 | $27.72 | $24.44 - $30.62 |
| Q3 2013 | 28,820 | $773 | $25.86 | $23.52 - $27.95 |
| Q2 2013 | 36,235 | $851 | $21.33 | $18.17 - $23.75 |