NGS Insider Transactions
371 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
NGS insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| Taylor Stephen Charles | Director | 2026-03-06 | Sale | 30,000.0 | $37.23 |
| Taylor Stephen Charles | Director | 2026-03-05 | Sale | 70,000.0 | $37.58 |
| Taylor Stephen Charles | Director | 2025-12-11 | Sale | 10,000.0 | $33.54 |
| Taylor Stephen Charles | Director | 2025-12-10 | Sale | 10,000.0 | $33.16 |
| HOLLEY JEAN K | Director | 2025-12-08 | Purchase | 2,190.0 | $32.04 |
| HOLLEY JEAN K | Director | 2025-12-08 | Purchase | 935.0 | $32.0 |
| Taylor Stephen Charles | Director | 2025-12-04 | Sale | 20,000.0 | $32.12 |
| Taylor Stephen Charles | Director | 2025-11-20 | Sale | 10,000.0 | $31.37 |
| Taylor Stephen Charles | Director | 2025-11-19 | Sale | 10,000.0 | $30.31 |
| Taylor Stephen Charles | Director | 2025-11-17 | Sale | 10,000.0 | $31.01 |
| Taylor Stephen Charles | Director | 2025-11-10 | Sale | 10,000.0 | $30.0 |
| Taylor Stephen Charles | Director | 2025-11-10 | Sale | 8,748.0 | $29.5 |
| Taylor Stephen Charles | Director | 2025-11-07 | Sale | 1,252.0 | $29.5 |
| Taylor Stephen Charles | Director | 2025-11-07 | Sale | 9,900.0 | $29.0 |
| Taylor Stephen Charles | Director | 2025-11-06 | Sale | 100.0 | $29.0 |
| Taylor Stephen Charles | Director | 2025-09-26 | Sale | 7,915.0 | $28.5 |
| Taylor Stephen Charles | Director | 2025-09-25 | Sale | 759.0 | $28.5 |
| Taylor Stephen Charles | Director | 2025-09-24 | Sale | 1,326.0 | $28.5 |
| Taylor Stephen Charles | Director | 2025-09-23 | Sale | 10,000.0 | $28.01 |
| Taylor Stephen Charles | Director | 2025-09-23 | Sale | 1,457.0 | $27.5 |
| Taylor Stephen Charles | Director | 2025-09-19 | Sale | 63.0 | $27.5 |
| Taylor Stephen Charles | Director | 2025-09-18 | Sale | 1,638.0 | $27.5 |
| Taylor Stephen Charles | Director | 2025-09-17 | Sale | 6,553.0 | $27.51 |
| Taylor Stephen Charles | Director | 2025-09-16 | Sale | 289.0 | $27.5 |
| Taylor Stephen Charles | Director | 2025-09-04 | Sale | 10,000.0 | $27.0 |
| HOLLEY JEAN K | Director | 2025-09-04 | Purchase | 3,752.0 | $26.58 |
| Taylor Stephen Charles | Director | 2025-08-22 | Sale | 10,000.0 | $26.0 |
| Taylor Stephen Charles | Director | 2025-08-22 | Sale | 10,000.0 | $26.5 |
| HOLLEY JEAN K | Director | 2025-08-14 | Purchase | 4,048.0 | $24.49 |
| Taylor Stephen Charles | Director | 2025-05-15 | Sale | 25,000.0 | $24.9 |
| Taylor Stephen Charles | Director | 2025-01-21 | Sale | 10,000.0 | $29.01 |
| Taylor Stephen Charles | Director | 2025-01-21 | Sale | 9,400.0 | $28.57 |
| Taylor Stephen Charles | Director | 2024-12-12 | Sale | 10,000.0 | $27.15 |
| Taylor Stephen Charles | Director | 2024-11-25 | Sale | 600.0 | $28.5 |
| Taylor Stephen Charles | Director | 2024-11-22 | Sale | 10,000.0 | $28.0 |
| Taylor Stephen Charles | Director | 2024-11-21 | Sale | 38,479.0 | $26.89 |
| Taylor Stephen Charles | Director | 2024-11-20 | Sale | 1,521.0 | $26.0 |
| Taylor Stephen Charles | Director | 2024-11-19 | Sale | 6,516.0 | $25.5 |
| Taylor Stephen Charles | Director | 2024-11-18 | Sale | 3,442.0 | $25.51 |
| Taylor Stephen Charles | Director | 2024-11-15 | Sale | 10,042.0 | $25.01 |
| Taylor Stephen Charles | Director | 2024-11-13 | Sale | 2,191.0 | $24.5 |
| Taylor Stephen Charles | Director | 2024-11-12 | Sale | 4,713.0 | $24.51 |
| Taylor Stephen Charles | Director | 2024-11-11 | Sale | 3,096.0 | $24.5 |
| Taylor Stephen Charles | Director | 2024-08-26 | Sale | 3,181.0 | $22.0 |
| Taylor Stephen Charles | Director | 2024-08-20 | Sale | 4,690.0 | $22.14 |
| Taylor Stephen Charles | Director | 2024-08-20 | Sale | 4,690.0 | $22.14 |
| Jacobs Justin | Chief Executive Officer | 2024-06-14 | Purchase | 2,500.0 | $19.08 |
| Beyer Leslie Ann | Director | 2022-12-01 | Sale | 3,000.0 | $11.05 |
| Taylor Stephen Charles | Chief Executive Officer | 2022-06-07 | Sale | 3,918.0 | $15.0 |
| Hazlett James R | VP - Technical Services | 2022-06-07 | Sale | 972.0 | $15.0 |
| Hazlett James R | VP - Technical Services | 2022-05-31 | Sale | 2,405.0 | $14.01 |
| Hazlett James R | VP - Technical Services | 2022-05-27 | Sale | 595.0 | $14.05 |
| CHISHOLM JOHN | Director | 2022-04-11 | Sale | 500.0 | $11.79 |
| CHISHOLM JOHN | Director | 2022-04-01 | Sale | 1,500.0 | $10.68 |
| CHISHOLM JOHN | Director | 2022-03-30 | Sale | 700.0 | $11.61 |
| CHISHOLM JOHN | Director | 2022-03-29 | Sale | 2,300.0 | $12.01 |
| Hazlett James R | VP - Technical Services | 2022-03-02 | Sale | 300.0 | $14.0 |
| Hazlett James R | VP - Technical Services | 2022-03-01 | Sale | 2,750.0 | $13.13 |
| Hazlett James R | VP - Technical Services | 2021-10-06 | Sale | 2,750.0 | $12.08 |
| CHISHOLM JOHN | Director | 2021-09-14 | Sale | 7,000.0 | $9.97 |
| CHISHOLM JOHN | Director | 2021-08-27 | Sale | 2,515.0 | $9.56 |
| CHISHOLM JOHN | Director | 2021-08-26 | Sale | 3,485.0 | $9.24 |
| Hazlett James R | VP -- Technical Services | 2020-12-10 | Sale | 2,500.0 | $12.0 |
| BRADSHAW DAVID L | Director | 2019-06-04 | Sale | 1,600.0 | $14.98 |
| BRADSHAW DAVID L | Director | 2019-06-04 | Sale | 1,756.0 | $15.2 |
| Hazlett James R | VP -- Technical Services | 2019-04-23 | Sale | 1,413.0 | $17.77 |
| Hazlett James R | VP -- Technical Services | 2019-04-22 | Sale | 1,687.0 | $17.79 |
| Lawrence G Larry | Chief Financial Officer | 2019-04-10 | Sale | 701.0 | $18.25 |
| Lawrence G Larry | Chief Financial Officer | 2019-04-08 | Sale | 3,299.0 | $18.42 |
| Hazlett James R | VP -- Technical Services | 2019-04-01 | Sale | 1,000.0 | $17.57 |
| Hazlett James R | VP -- Technical Services | 2019-03-29 | Sale | 1,000.0 | $17.07 |
| Hazlett James R | VP -- Technical Services | 2019-03-28 | Sale | 1,000.0 | $17.14 |
| Hazlett James R | VP -- Technical Services | 2019-03-27 | Sale | 1,000.0 | $17.33 |
| Hazlett James R | VP -- Technical Services | 2019-03-26 | Sale | 1,000.0 | $17.26 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-02-05 | Sale | 2,720.0 | $17.0 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-02-04 | Sale | 12,771.0 | $17.06 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-31 | Sale | 18.0 | $17.0 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-30 | Sale | 348.0 | $17.0 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-29 | Sale | 4,905.0 | $17.05 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-28 | Sale | 1,110.0 | $17.0 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-25 | Sale | 1,980.0 | $17.14 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-25 | Sale | 2,994.0 | $17.14 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-24 | Sale | 1,205.0 | $17.0 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-23 | Sale | 1,846.0 | $17.21 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-22 | Sale | 1,200.0 | $17.48 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-18 | Sale | 12,444.0 | $17.89 |
| Taylor Stephen Charles | Chief Executive Officer | 2019-01-17 | Sale | 10,311.0 | $17.5 |
| CHISHOLM JOHN | Director | 2019-01-08 | Sale | 2,500.0 | $18.2 |
| Taylor Stephen Charles | CEO | 2018-08-29 | Sale | 13,776.0 | $22.01 |
| Taylor Stephen Charles | CEO | 2018-08-27 | Sale | 514.0 | $22.04 |
| Taylor Stephen Charles | CEO | 2018-08-24 | Sale | 1,500.0 | $22.45 |
| Taylor Stephen Charles | CEO | 2018-08-23 | Sale | 1,306.0 | $22.51 |
| Taylor Stephen Charles | CEO | 2018-08-21 | Sale | 2,704.0 | $22.02 |
| CHISHOLM JOHN | Director | 2018-03-28 | Sale | 4,511.0 | $23.2 |
| CHISHOLM JOHN | Director | 2018-03-27 | Sale | 9,569.0 | $24.07 |
| CHISHOLM JOHN | Director | 2018-03-26 | Sale | 4,110.0 | $24.13 |
| CHISHOLM JOHN | Director | 2018-03-23 | Sale | 2,750.0 | $24.35 |
| BRADSHAW DAVID L | Director | 2018-03-13 | Sale | 1,853.0 | $27.35 |
| BRADSHAW DAVID L | Director | 2018-03-13 | Sale | 647.0 | $27.11 |
| Hazlett James R | VP -- Technical Services | 2018-01-25 | Sale | 102.0 | $28.9 |