Explore NorthWestern's complete collection of publicly available corporate disclosures, including annual reports, sustainability reports, financial statements, ESG data spreadsheets, and related web publications. Each document is sourced directly from NorthWestern's official channels and fully traceable to its official company sources.
The table below lists all of NorthWestern's' corporate disclosure by name and reporting period, ensuring full transparency and easy access.
If you want to search across NorthWestern's' disclosures for specific data or insights, use our Disclosure Search.
| Name | Reporting Period | |
|---|---|---|
Annual Report | 2024 | |
Sustainability Report | 2023 | |
ESG Data Spreadsheet | 2023 | |
EEI/AGA Template | 2023 | |
10-K | 2022 | |
ESG Data Spreadsheet | 2022 | |
Financial & Extra-Financial Disclosure | 2022 | |
EEI/AGA Template | 2022 | |
EEI/AGA Template | 2022 | |
ESG Data Spreadsheet | 2022 | |
10-K | 2021 | |
Financial & Extra-Financial Disclosure | 2021 | |
10-K | 2020 | |
Annual Report | 2020 | |
Environmental Report | 2020 | |
ESG Data Spreadsheet | 2020 | |
ESG Data Spreadsheet | 2020 | |
10-K | 2019 | |
10-K | 2018 | |
10-K | 2017 | |
10-K | 2016 | |
10-K | 2015 | |
10-K | 2014 | |
10-K | 2013 | |
10-K | 2012 | |
10-K | 2011 | |
10-K | 2010 | |
10-K | 2010 |