Ticker: NGS CUSIP: 63886Q109 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 513,625 | $17,283 | $29.70 | $25.36 - $34.47 |
| Q3 2025 | 509,344 | $14,257 | $25.41 | $22.48 - $28.73 |
| Q2 2025 | 509,714 | $13,156 | $22.21 | $16.55 - $27.54 |
| Q1 2025 | 507,290 | $11,145 | $25.04 | $20.01 - $29.42 |
| Q4 2024 | 492,594 | $13,202 | $23.22 | $18.21 - $28.20 |
| Q3 2024 | 579,573 | $11,076 | $19.78 | $16.52 - $22.59 |
| Q2 2024 | 572,689 | $11,523 | $21.72 | $17.81 - $24.97 |
| Q1 2024 | 563,548 | $10,950 | $15.93 | $13.55 - $19.94 |
| Q4 2023 | 535,751 | $8,615 | $14.30 | $12.61 - $16.27 |
| Q3 2023 | 530,617 | $7,726 | $10.78 | $9.52 - $15.23 |
| Q2 2023 | 531,577 | $5,263 | $10.23 | $9.45 - $11.09 |
| Q1 2023 | 551,459 | $5,686 | $10.89 | $9.31 - $12.54 |
| Q4 2022 | 574,266 | $6,581 | $10.80 | $9.88 - $12.25 |
| Q3 2022 | 578,444 | $5,809 | $10.16 | $9.01 - $12.32 |
| Q2 2022 | 575,416 | $6,329 | $12.63 | $10.83 - $14.84 |
| Q1 2022 | 649,214 | $7,732 | $11.42 | $9.74 - $13.89 |
| Q4 2021 | 609,628 | $6,382 | $11.19 | $9.41 - $12.83 |
| Q3 2021 | 528,713 | $5,488 | $9.70 | $8.82 - $10.76 |
| Q2 2021 | 528,670 | $5,434 | $9.89 | $8.77 - $11.52 |
| Q1 2021 | 531,238 | $5,015 | $9.42 | $7.92 - $10.65 |
| Q4 2020 | 505,992 | $4,797 | $9.94 | $8.27 - $12.10 |
| Q3 2020 | 555,052 | $4,690 | $7.49 | $6.05 - $10.02 |
| Q2 2020 | 689,952 | $4,326 | $5.74 | $3.96 - $8.23 |
| Q1 2020 | 487,972 | $2,176 | $9.28 | $2.59 - $13.00 |
| Q4 2019 | 322,701 | $3,957 | $11.66 | $10.44 - $12.91 |
| Q3 2019 | 256,398 | $3,285 | $13.56 | $10.11 - $16.51 |
| Q2 2019 | 249,148 | $4,111 | $16.22 | $14.71 - $18.54 |
| Q1 2019 | 245,804 | $4,255 | $17.65 | $15.90 - $19.02 |
| Q4 2018 | 235,199 | $3,866 | $18.94 | $15.26 - $20.99 |
| Q3 2018 | 195,283 | $4,119 | $21.85 | $20.28 - $24.24 |
| Q2 2018 | 190,738 | $4,501 | $23.87 | $21.47 - $26.42 |
| Q1 2018 | 221,362 | $5,279 | $26.44 | $22.81 - $29.04 |
| Q4 2017 | 220,462 | $5,777 | $26.38 | $23.89 - $29.04 |
| Q3 2017 | 219,562 | $6,237 | $24.49 | $22.26 - $29.24 |
| Q2 2017 | 219,132 | $5,445 | $26.24 | $22.26 - $28.69 |
| Q1 2017 | 164,032 | $4,272 | $27.74 | $23.30 - $33.05 |
| Q4 2016 | 163,962 | $5,271 | $27.19 | $20.43 - $34.13 |
| Q3 2016 | 152,889 | $3,760 | $24.06 | $21.50 - $26.46 |
| Q2 2016 | 151,789 | $3,476 | $22.14 | $19.61 - $25.27 |
| Q1 2016 | 185,249 | $4,006 | $18.82 | $15.79 - $22.57 |
| Q4 2015 | 201,429 | $4,492 | $21.48 | $18.28 - $24.21 |
| Q3 2015 | 213,743 | $4,125 | $20.31 | $18.37 - $22.64 |
| Q2 2015 | 210,209 | $4,798 | $23.06 | $19.10 - $25.82 |
| Q1 2015 | 237,189 | $4,560 | $19.65 | $17.69 - $23.12 |
| Q4 2014 | 212,464 | $4,895 | $23.39 | $20.44 - $26.73 |
| Q3 2014 | 508 | $12 | $28.91 | $23.00 - $33.65 |
| Q2 2014 | 508 | $17 | $30.73 | $28.13 - $34.48 |
| Q1 2014 | 508 | $15 | $29.49 | $25.23 - $34.59 |
| Q4 2013 | 508 | $14 | $27.72 | $24.44 - $30.62 |
| Q3 2013 | 1,279 | $35 | $25.86 | $23.52 - $27.95 |
| Q2 2013 | 1,579 | $37 | $21.33 | $18.17 - $23.75 |