NorthWestern Corporation (NWE)
Who owns NorthWestern Corporation (NWE)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.3% of the shares are freely tradable; institutional investors hold 100.6%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.46 | 8,281,530 | -3.9 | 03/31/2026 |
| Vanguard Group Inc | 10.84 | 6,667,340 | -0.4 | 12/31/2025 |
| Vanguard Portfolio Management, LLC | 5.67 | 3,489,737 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.52 | 2,782,707 | +0.0 | 03/31/2026 |
| State Street Corp | 3.80 | 2,335,081 | -11.5 | 03/31/2026 |
| Geode Capital Management, LLC | 2.75 | 1,694,354 | +4.0 | 03/31/2026 |
| Franklin Resources Inc | 2.64 | 1,621,967 | +12.9 | 03/31/2026 |
| American Century Companies Inc | 2.53 | 1,557,867 | -23.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.39 | 2,084,608 | +0.0 | 05/29/2026 |
| Vanguard Total Stock Mkt Idx Inv | 3.20 | 1,969,902 | +0.4 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 9. Jul 2026 | Edwards Sherina M. | Director | Other | 524 | 71.62 | 37,529 |
| 9. Jul 2026 | Ide Britt E | Director | Other | 524 | 71.62 | 37,529 |
| 9. Jul 2026 | Larson Kent T | Director | Other | 524 | 71.62 | 37,529 |
| 9. Jul 2026 | Goodin David L | Director | Other | 524 | 71.62 | 37,529 |
| 9. Jul 2026 | Sullivan Linda G | Director | Other | 768 | 71.62 | 55,004 |
| 6. Jul 2026 | Yazdi Mahvash | Director | Other | 524 | 71.62 | 37,529 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.