| 27 Feb 2026 | TAX_WITHHOLDING | NorthWestern Energy Group, Inc. | 7,341 | 0.00 USD | |
| 27 Feb 2026 | GRANT_AWARD | NorthWestern Energy Group, Inc. | 20,864 | 68.45 USD | |
| 24 Feb 2026 | GRANT_AWARD | NorthWestern Energy Group, Inc. | 2,587 | 68.45 USD | |
| 24 Feb 2026 | TAX_WITHHOLDING | NorthWestern Energy Group, Inc. | 60 | 0.00 USD | |
| 22 Jan 2026 | TAX_WITHHOLDING | NorthWestern Energy Group, Inc. | 2,397 | 64.54 USD | |
| 19 Dec 2025 | TAX_WITHHOLDING | NorthWestern Energy Group, Inc. | 3,129 | 67.84 USD | |
| 03 Mar 2025 | GRANT_AWARD | NorthWestern Energy Group, Inc. | 17,334 | 0.00 USD | |
| 03 Mar 2025 | GRANT_AWARD | NorthWestern Energy Group, Inc. | 7,540 | 54.12 USD | |
| 13 Mar 2024 | GRANT_AWARD | NorthWestern Energy Group, Inc. | 17,652 | 0.00 USD | |
| 05 Mar 2024 | GRANT_AWARD | NorthWestern Energy Group, Inc. | 2,837 | 46.70 USD | |
| 07 Mar 2023 | GRANT_AWARD | NORTHWESTERN CORP | 9,355 | 0.00 USD | |
| 03 Mar 2023 | GRANT_AWARD | NORTHWESTERN CORP | 1,982 | 56.92 USD | |
| 03 Mar 2023 | GRANT_AWARD | NORTHWESTERN CORP | 894 | 56.92 USD | |
| 13 Dec 2022 | GRANT_AWARD | NORTHWESTERN CORP | 15,905 | 0.00 USD | |
| 13 Dec 2022 | GRANT_AWARD | NORTHWESTERN CORP | 4,927 | 0.00 USD | |
| 03 Nov 2022 | SALE | NORTHWESTERN CORP | 6,800 | 52.51 USD | |
| 28 Feb 2022 | GRANT_AWARD | NORTHWESTERN CORP | 3,894 | 56.52 USD | |
| 24 Feb 2022 | GRANT_AWARD | NORTHWESTERN CORP | 2,198 | 56.52 USD | |
| 24 Feb 2021 | GRANT_AWARD | NORTHWESTERN CORP | 2,181 | 57.47 USD | |
| 24 Feb 2021 | GRANT_AWARD | NORTHWESTERN CORP | 3,952 | 57.47 USD | |
| 26 Feb 2020 | GRANT_AWARD | NORTHWESTERN CORP | 7,896 | 77.46 USD | |
| 24 Feb 2020 | GRANT_AWARD | NORTHWESTERN CORP | 2,054 | 77.46 USD | |
| 25 Feb 2019 | GRANT_AWARD | NORTHWESTERN CORP | 1,191 | 64.98 USD | |
| 25 Feb 2019 | GRANT_AWARD | NORTHWESTERN CORP | 5,677 | 64.98 USD | |
| 08 Mar 2018 | GRANT_AWARD | NORTHWESTERN CORP | 47 | 52.22 USD | |