Ticker: NGS CUSIP: 63886Q109 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 32,030 | $1,078 | $29.70 | $25.36 - $34.47 |
| Q3 2025 | 30,130 | $843 | $25.41 | $22.48 - $28.73 |
| Q2 2025 | 9,130 | $236 | $22.21 | $16.55 - $27.54 |
| Q1 2025 | 10,830 | $238 | $25.04 | $20.01 - $29.42 |
| Q4 2024 | 9,830 | $263 | $23.22 | $18.21 - $28.20 |
| Q3 2024 | 10,530 | $201 | $19.78 | $16.52 - $22.59 |
| Q2 2024 | 17,130 | $345 | $21.72 | $17.81 - $24.97 |
| Q4 2022 | 10,577 | $121 | $10.80 | $9.88 - $12.25 |
| Q3 2022 | 10,777 | $108 | $10.16 | $9.01 - $12.32 |
| Q2 2022 | 10,877 | $120 | $12.63 | $10.83 - $14.84 |
| Q1 2022 | 10,877 | $130 | $11.42 | $9.74 - $13.89 |
| Q4 2021 | 12,633 | $132 | $11.19 | $9.41 - $12.83 |
| Q3 2021 | 20,177 | $209 | $9.70 | $8.82 - $10.76 |
| Q2 2021 | 36,577 | $376 | $9.89 | $8.77 - $11.52 |
| Q1 2021 | 23,377 | $221 | $9.42 | $7.92 - $10.65 |
| Q4 2020 | 16,077 | $152 | $9.94 | $8.27 - $12.10 |
| Q3 2020 | 30,770 | $260 | $7.49 | $6.05 - $10.02 |
| Q2 2020 | 39,611 | $248 | $5.74 | $3.96 - $8.23 |
| Q1 2020 | 39,111 | $174 | $9.28 | $2.59 - $13.00 |
| Q4 2019 | 40,611 | $498 | $11.66 | $10.44 - $12.91 |
| Q3 2019 | 34,811 | $446 | $13.56 | $10.11 - $16.51 |
| Q2 2019 | 34,911 | $576 | $16.22 | $14.71 - $18.54 |
| Q1 2019 | 34,011 | $589 | $17.65 | $15.90 - $19.02 |
| Q4 2018 | 32,711 | $538 | $18.94 | $15.26 - $20.99 |
| Q3 2018 | 34,511 | $728 | $21.85 | $20.28 - $24.24 |
| Q2 2018 | 38,811 | $916 | $23.87 | $21.47 - $26.42 |
| Q1 2018 | 42,611 | $1,016 | $26.44 | $22.81 - $29.04 |
| Q4 2017 | 42,711 | $1,119 | $26.38 | $23.89 - $29.04 |
| Q3 2017 | 45,111 | $1,281 | $24.49 | $22.26 - $29.24 |
| Q2 2017 | 59,918 | $1,489 | $26.24 | $22.26 - $28.69 |
| Q1 2017 | 32,011 | $834 | $27.74 | $23.30 - $33.05 |
| Q4 2016 | 34,711 | $1,116 | $27.19 | $20.43 - $34.13 |
| Q3 2016 | 30,311 | $745 | $24.06 | $21.50 - $26.46 |
| Q2 2016 | 35,111 | $804 | $22.14 | $19.61 - $25.27 |
| Q1 2016 | 39,211 | $848 | $18.82 | $15.79 - $22.57 |
| Q4 2015 | 31,711 | $707 | $21.48 | $18.28 - $24.21 |
| Q3 2015 | 29,969 | $586 | $20.31 | $18.37 - $22.64 |
| Q2 2015 | 34,369 | $784 | $23.06 | $19.10 - $25.82 |
| Q1 2015 | 25,769 | $495 | $19.65 | $17.69 - $23.12 |
| Q4 2014 | 25,669 | $591 | $23.39 | $20.44 - $26.73 |
| Q3 2014 | 24,869 | $599 | $28.91 | $23.00 - $33.65 |
| Q2 2014 | 31,769 | $1,050 | $30.73 | $28.13 - $34.48 |
| Q1 2014 | 32,069 | $966 | $29.49 | $25.23 - $34.59 |
| Q4 2013 | 32,069 | $885 | $27.72 | $24.44 - $30.62 |
| Q3 2013 | 38,369 | $1,030 | $25.86 | $23.52 - $27.95 |
| Q2 2013 | 37,669 | $885 | $21.33 | $18.17 - $23.75 |