Ticker: NGS CUSIP: 63886Q109 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 12,735 | $429 | $29.70 | $25.36 - $34.47 |
| Q3 2025 | 16,105 | $451 | $25.41 | $22.48 - $28.73 |
| Q2 2025 | 18,516 | $478 | $22.21 | $16.55 - $27.54 |
| Q1 2025 | 18,488 | $406 | $25.04 | $20.01 - $29.42 |
| Q4 2024 | 18,350 | $492 | $23.22 | $18.21 - $28.20 |
| Q3 2024 | 38,954 | $744 | $19.78 | $16.52 - $22.59 |
| Q2 2024 | 42,748 | $860 | $21.72 | $17.81 - $24.97 |
| Q1 2024 | 26,335 | $512 | $15.93 | $13.55 - $19.94 |
| Q4 2023 | 28,622 | $460 | $14.30 | $12.61 - $16.27 |
| Q3 2023 | 65,915 | $960 | $10.78 | $9.52 - $15.23 |
| Q2 2023 | 58,112 | $575 | $10.23 | $9.45 - $11.09 |
| Q1 2023 | 55,049 | $568 | $10.89 | $9.31 - $12.54 |
| Q4 2022 | 58,133 | $666 | $10.80 | $9.88 - $12.25 |
| Q3 2022 | 43,308 | $435 | $10.16 | $9.01 - $12.32 |
| Q2 2022 | 42,832 | $471 | $12.63 | $10.83 - $14.84 |
| Q1 2022 | 54,900 | $654 | $11.42 | $9.74 - $13.89 |
| Q4 2021 | 48,238 | $505 | $11.19 | $9.41 - $12.83 |
| Q3 2021 | 48,238 | $501 | $9.70 | $8.82 - $10.76 |
| Q2 2021 | 55,823 | $574 | $9.89 | $8.77 - $11.52 |
| Q1 2021 | 99,863 | $943 | $9.42 | $7.92 - $10.65 |
| Q4 2020 | 99,863 | $947 | $9.94 | $8.27 - $12.10 |
| Q3 2020 | 144,470 | $1,221 | $7.49 | $6.05 - $10.02 |
| Q2 2020 | 144,470 | $906 | $5.74 | $3.96 - $8.23 |
| Q1 2020 | 199,457 | $890 | $9.28 | $2.59 - $13.00 |
| Q4 2019 | 203,261 | $2,492 | $11.66 | $10.44 - $12.91 |
| Q3 2019 | 120,466 | $1,543 | $13.56 | $10.11 - $16.51 |
| Q2 2019 | 92,607 | $1,528 | $16.22 | $14.71 - $18.54 |
| Q1 2019 | 78,727 | $1,363 | $17.65 | $15.90 - $19.02 |
| Q4 2018 | 92,200 | $1,516 | $18.94 | $15.26 - $20.99 |
| Q3 2018 | 111,209 | $2,347 | $21.85 | $20.28 - $24.24 |
| Q2 2018 | 92,909 | $2,193 | $23.87 | $21.47 - $26.42 |
| Q1 2018 | 61,709 | $1,472 | $26.44 | $22.81 - $29.04 |
| Q4 2017 | 66,400 | $1,740 | $26.38 | $23.89 - $29.04 |
| Q3 2017 | 57,464 | $1,632 | $24.49 | $22.26 - $29.24 |
| Q2 2017 | 44,000 | $1,093 | $26.24 | $22.26 - $28.69 |
| Q1 2017 | 46,703 | $1,217 | $27.74 | $23.30 - $33.05 |
| Q3 2016 | 69,210 | $1,702 | $24.06 | $21.50 - $26.46 |
| Q2 2016 | 75,070 | $1,719 | $22.14 | $19.61 - $25.27 |
| Q1 2016 | 80,344 | $1,738 | $18.82 | $15.79 - $22.57 |
| Q4 2015 | 89,420 | $1,994 | $21.48 | $18.28 - $24.21 |
| Q3 2015 | 85,769 | $1,655 | $20.31 | $18.37 - $22.64 |
| Q2 2015 | 52,990 | $1,209 | $23.06 | $19.10 - $25.82 |
| Q1 2015 | 55,860 | $1,074 | $19.65 | $17.69 - $23.12 |
| Q4 2014 | 55,610 | $1,281 | $23.39 | $20.44 - $26.73 |
| Q3 2014 | 57,900 | $1,394 | $28.91 | $23.00 - $33.65 |
| Q2 2014 | 34,209 | $1,131 | $30.73 | $28.13 - $34.48 |
| Q1 2014 | 60,600 | $1,826 | $29.49 | $25.23 - $34.59 |
| Q4 2013 | 13,300 | $367 | $27.72 | $24.44 - $30.62 |