NG Insider Transactions
234 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.
NG insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|
| Muniz Quintanilla Daniel | Director | 2026-02-06 | Purchase | 22,470.0 | $8.94 |
|---|
| Whittaker Dawn Patricia | Director | 2026-02-04 | Purchase | 4,000.0 | $9.36 |
|---|
| Dorward-King Elaine J | Director | 2026-01-27 | Sale | 11.0 | $10.42 |
|---|
| Schutt Ethan | Director | 2025-07-28 | Purchase | 3,824.0 | $5.23 |
|---|
| KYLE HUME D. | Director | 2025-06-30 | Purchase | 10,000.0 | $4.1 |
|---|
| KAPLAN THOMAS SCOTT | Director,TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| Electrum Strategic Resources L.P. | TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| ELECTRUM GLOBAL HOLDINGS L.P. | TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| Electrum Group LLC | TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| Leopard Holdings LLC | TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| GRAT Holdings LLC | TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| TEG Global GP Ltd. | TenPercentOwner | 2025-05-09 | Purchase | 13,333,334.0 | $3.75 |
|---|
| MADHAVPEDDI KALIDAS V | Director | 2023-11-30 | Sale | 10,947.0 | $4.17 |
|---|
| Lang Gregory A. | President and CEO | 2023-11-30 | Sale | 42,519.0 | $4.16 |
|---|
| Lang Gregory A. | President and CEO | 2023-11-29 | Sale | 46,335.0 | $4.21 |
|---|
| Lang Gregory A. | President and CEO | 2023-11-28 | Sale | 10,868.0 | $4.07 |
|---|
| GARRETT DIANE R | Director | 2023-11-28 | Sale | 9,972.0 | $4.11 |
|---|
| Schutt Ethan | Director | 2023-11-09 | Purchase | 23,676.92 | $3.59 |
|---|
| Walsh Anthony P. | Director | 2023-11-03 | Sale | 1,813.0 | $3.78 |
|---|
| GARRETT DIANE R | Director | 2023-05-03 | Sale | 14,950.0 | $5.58 |
|---|
| Dowdall Sharon | Director | 2023-04-13 | Sale | 39,799.0 | $6.41 |
|---|
| Walsh Anthony P. | Director | 2023-01-31 | Sale | 12,479.0 | $6.27 |
|---|
| Ottewell David A. | Vice President & CFO | 2022-12-07 | Sale | 71,186.0 | $5.96 |
|---|
| Ottewell David A. | Vice President & CFO | 2022-12-06 | Sale | 57,592.0 | $5.97 |
|---|
| Walsh Anthony P. | Director | 2022-12-02 | Sale | 11,896.0 | $6.01 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-29 | Sale | 22,925.0 | $5.57 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-28 | Sale | 22,356.0 | $5.47 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-25 | Sale | 24,956.0 | $5.76 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-22 | Sale | 23,483.0 | $5.6 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-21 | Sale | 21,626.0 | $5.4 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-18 | Sale | 27,639.0 | $5.32 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-10 | Sale | 45,382.0 | $5.57 |
|---|
| MADHAVPEDDI KALIDAS V | Director | 2022-11-08 | Sale | 22.0 | $4.95 |
|---|
| MADHAVPEDDI KALIDAS V | Director | 2022-11-07 | Sale | 17.0 | $4.84 |
|---|
| Nauman Clynton R. | Director | 2022-11-07 | Sale | 9,566.0 | $4.97 |
|---|
| Lang Gregory A. | President and CEO | 2022-11-04 | Sale | 20,454.0 | $4.8 |
|---|
| Dowdall Sharon | Director | 2022-10-21 | Sale | 25,666.0 | $4.82 |
|---|
| Walsh Anthony P. | Director | 2022-10-20 | Sale | 4,027.0 | $4.58 |
|---|
| Lang Gregory A. | President and CEO | 2022-04-14 | Sale | 54,280.0 | $8.15 |
|---|
| Lang Gregory A. | President and CEO | 2022-03-11 | Sale | 51,104.0 | $7.67 |
|---|
| Walsh Anthony P. | Director | 2022-02-23 | Sale | 22,406.0 | $7.1 |
|---|
| Lang Gregory A. | President and CEO | 2022-02-16 | Sale | 22,060.0 | $6.89 |
|---|
| Lang Gregory A. | President and CEO | 2022-02-15 | Sale | 22,193.0 | $6.63 |
|---|
| Lang Gregory A. | President and CEO | 2021-12-16 | Sale | 88,960.0 | $6.89 |
|---|
| Ottewell David A. | Vice President & CFO | 2021-12-13 | Sale | 16,143.0 | $7.14 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-29 | Sale | 29,611.0 | $6.94 |
|---|
| Nauman Clynton R. | Director | 2021-11-29 | Sale | 30,561.0 | $7.04 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-24 | Sale | 18,821.0 | $7.32 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-23 | Sale | 19,054.0 | $7.4 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-22 | Sale | 37,329.0 | $7.55 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-19 | Sale | 30,734.0 | $7.74 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-18 | Sale | 30,933.0 | $7.79 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-17 | Sale | 32,169.0 | $7.97 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-12 | Sale | 33,489.0 | $8.23 |
|---|
| Walsh Anthony P. | Director | 2021-11-11 | Sale | 17,843.0 | $8.11 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-09 | Sale | 30,039.0 | $7.81 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-08 | Sale | 30,848.0 | $7.75 |
|---|
| Levental Igor | Director | 2021-11-05 | Sale | 35,750.0 | $7.65 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-04 | Sale | 19,539.0 | $7.48 |
|---|
| Lang Gregory A. | President and CEO | 2021-11-03 | Sale | 29,071.0 | $7.31 |
|---|
| MADHAVPEDDI KALIDAS V | Director | 2021-11-03 | Sale | 11.0 | $7.48 |
|---|
| Dowdall Sharon | Director | 2021-10-05 | Sale | 26,052.0 | $7.2 |
|---|
| Lang Gregory A. | President and CEO | 2021-07-29 | Sale | 25,089.0 | $8.11 |
|---|
| Lang Gregory A. | President and CEO | 2021-06-11 | Sale | 95,392.0 | $9.75 |
|---|
| Walsh Anthony P. | Director | 2021-04-06 | Sale | 19,655.0 | $9.33 |
|---|
| Lang Gregory A. | President and CEO | 2020-12-08 | Sale | 123,071.0 | $10.4 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-12-07 | Sale | 167,308.0 | $10.49 |
|---|
| Lang Gregory A. | President and CEO | 2020-11-27 | Sale | 90,177.0 | $9.73 |
|---|
| Lang Gregory A. | President and CEO | 2020-11-05 | Sale | 95,641.0 | $11.3 |
|---|
| MADHAVPEDDI KALIDAS V | Director | 2020-11-02 | Sale | 69,938.0 | $10.45 |
|---|
| Lang Gregory A. | President and CEO | 2020-10-15 | Sale | 91,723.0 | $11.0 |
|---|
| Dowdall Sharon | Director | 2020-10-06 | Sale | 72,465.0 | $11.18 |
|---|
| Lang Gregory A. | President and CEO | 2020-10-02 | Sale | 89,214.0 | $11.11 |
|---|
| Lang Gregory A. | President and CEO | 2020-09-11 | Sale | 89,894.0 | $10.65 |
|---|
| Lang Gregory A. | President and CEO | 2020-08-31 | Sale | 88,800.0 | $10.55 |
|---|
| Lang Gregory A. | President and CEO | 2020-05-01 | Sale | 81,032.0 | $11.05 |
|---|
| Walsh Anthony P. | Director | 2020-04-16 | Sale | 24,984.0 | $11.6 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-04-16 | Sale | 34,525.0 | $12.44 |
|---|
| Levental Igor | Director | 2020-04-15 | Sale | 59,561.0 | $11.39 |
|---|
| Nauman Clynton R. | Director | 2020-04-14 | Sale | 75,195.0 | $11.42 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-04-09 | Sale | 13,492.0 | $9.95 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-04-08 | Sale | 12,621.0 | $9.26 |
|---|
| Walsh Anthony P. | Director | 2020-04-08 | Sale | 18,459.0 | $9.28 |
|---|
| Lang Gregory A. | President and CEO | 2020-04-03 | Sale | 69,645.0 | $8.46 |
|---|
| Lang Gregory A. | President and CEO | 2020-02-28 | Sale | 62,512.0 | $7.68 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-02-24 | Sale | 13,208.0 | $9.72 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-02-18 | Sale | 15,289.0 | $9.34 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-02-10 | Sale | 12,583.0 | $9.05 |
|---|
| Ottewell David A. | Vice President & CFO | 2020-02-06 | Sale | 12,940.0 | $9.15 |
|---|
| Lang Gregory A. | President and CEO | 2020-01-31 | Sale | 53,887.0 | $9.09 |
|---|
| Walsh Anthony P. | Director | 2020-01-24 | Sale | 46,824.0 | $9.25 |
|---|
| Lang Gregory A. | President and CEO | 2020-01-02 | Sale | 62,768.0 | $8.79 |
|---|
| Ottewell David A. | Vice President & CFO | 2019-12-05 | Sale | 78,611.0 | $7.19 |
|---|
| Lang Gregory A. | President and CEO | 2019-11-22 | Sale | 60,916.0 | $6.67 |
|---|
| Lang Gregory A. | President and CEO | 2019-11-15 | Sale | 60,855.0 | $6.66 |
|---|
| Lang Gregory A. | President and CEO | 2019-11-08 | Sale | 58,649.0 | $6.27 |
|---|
| Lang Gregory A. | President and CEO | 2019-11-01 | Sale | 62,720.0 | $7.13 |
|---|
| Dowdall Sharon | Director | 2019-10-31 | Sale | 64,063.0 | $7.19 |
|---|
| Lang Gregory A. | President and CEO | 2019-10-15 | Sale | 57,782.0 | $6.13 |
|---|
| Lang Gregory A. | President and CEO | 2019-10-03 | Sale | 67,641.0 | $6.43 |
|---|