| X | Filing Date | Trade Date | Ticker | Insider Name | Title | Trade Type | Price | Qty | Owned | ΔOwn | Value | 1d | 1w | 1m | 6m | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-09-26 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $28.50 | -7,915 | 489,645 | -2% | -$225,586 | |||||
| D | 2025-09-25 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $28.50 | -759 | 497,560 | 0% | -$21,632 | |||||
| D | 2025-09-24 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $28.50 | -1,326 | 498,319 | 0% | -$37,791 | |||||
| D | 2025-09-23 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.95 | -11,457 | 499,645 | -2% | -$320,216 | |||||
| D | 2025-09-19 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.50 | -63 | 511,102 | 0% | -$1,733 | |||||
| D | 2025-09-18 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.50 | -1,638 | 511,165 | 0% | -$45,046 | |||||
| D | 2025-09-17 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.51 | -6,553 | 512,803 | -1% | -$180,253 | |||||
| D | 2025-09-16 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.50 | -289 | 519,356 | 0% | -$7,948 | |||||
| D | 2025-09-04 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.00 | -10,000 | 517,547 | -2% | -$270,018 | |||||
| D | 2025-08-22 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $26.25 | -20,000 | 547,035 | -4% | -$525,060 | |||||
| D | 2025-05-15 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $24.90 | -25,000 | 547,088 | -4% | -$622,500 | |||||
| D | 2025-01-21 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $28.80 | -19,400 | 572,088 | -3% | -$558,649 | |||||
| D | 2024-12-12 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $27.15 | -10,000 | 591,488 | -2% | -$271,500 | |||||
| DM | 2024-11-22 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $28.03 | -10,600 | 601,488 | -2% | -$297,100 | |||||
| DM | 2024-11-19 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $26.67 | -46,516 | 612,088 | -7% | -$1,240,481 | |||||
| DM | 2024-11-15 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $25.13 | -13,484 | 658,604 | -2% | -$338,919 | |||||
| A | 2024-08-20 | NGS | Taylor Stephen Charles | Dir | S - Sale | $22.14 | -4,690 | 685,269 | -1% | -$103,837 | |||||
| DM | 2024-11-11 | NGS | Taylor Stephen Charles | Dir | S - Sale+OE | $24.50 | -10,000 | 538,387 | -2% | -$245,039 | |||||
| 2024-08-26 | NGS | Taylor Stephen Charles | Dir | S - Sale | $22.00 | -3,181 | 682,088 | 0% | -$69,982 | ||||||
| 2024-08-20 | NGS | Taylor Stephen Charles | Dir | S - Sale | $22.14 | -4,690 | 685,269 | -1% | -$103,837 | 
| A | Amended filing | 
| D | Derivative transaction in filing (usually option exercise) | 
| E | Error detected in filing | 
| M | Multiple transactions in filing; earliest reported transaction date and weighted average transaction price | 
| S - Sale | Sale of securities on an exchange or to another person | 
| S - Sale+OE | Sale of securities on an exchange or to another person (after option exercise) | 
| F - Tax | Payment of exercise price or tax liability using portion of securities received from the company | 
| P - Purchase | Purchase of securities on an exchange or from another person |