NorthWestern Corporation (NWE) Ownership
NWE ownership summary
as of October 18, 2026- Institutions
- 97.7% of shares outstanding
- Insiders
- 0.67% of shares outstanding
- Shares outstanding
- 61.5M
- Float
- 61.1M shares available to trade
- Short interest
- 4.23% 2.0M shares short
- Days to cover
- 4.17 short interest down 1.4% vs prior month
- Institutions 97.72%
- Insiders 0.67%
- Other investors 1.62%
NWE top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 14.74% | 9.1M | $677.8M | +789,222 (+9.5%) | June 30, 2026 |
| 2 | Vanguard Portfolio Management, LLC | 5.77% | 3.5M | $265.2M | +58,960 (+1.7%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 4.54% | 2.8M | $208.5M | +7,429 (+0.3%) | June 30, 2026 |
| 4 | State Street Corp | 3.95% | 2.4M | $181.7M | +96,465 (+4.1%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 2.91% | 1.8M | $133.7M | +94,546 (+5.6%) | June 30, 2026 |
| 6 | Franklin Templeton Inc | 2.57% | 1.6M | $118.2M | −40,442 (−2.5%) | June 30, 2026 |
| 7 | Neuberger Berman Group LLC | 2.21% | 1.4M | $101.4M | +82,960 (+6.5%) | June 30, 2026 |
| 8 | Balyasny Asset Management LLC | 2.09% | 1.3M | $96.1M | +375,337 (+41.2%) | June 30, 2026 |
| 9 | American Century Companies Inc | 2.01% | 1.2M | $92.5M | −319,599 (−20.5%) | June 30, 2026 |
| 10 | Systematic Financial Management LP | 1.82% | 1.1M | $83.8M | −10,109 (−0.9%) | June 30, 2026 |
| 11 | Cnh Partners, LLC | 1.78% | 1.1M | $81.8M | +12,885 (+1.2%) | June 30, 2026 |
| 12 | Millennium Management LLC | 1.73% | 1.1M | $79.5M | −250,369 (−19.0%) | June 30, 2026 |
| 13 | AllianceBernstein L.P. | 1.73% | 1.1M | $79.3M | +245,094 (+30.0%) | June 30, 2026 |
| 14 | The Goldman Sachs Group Inc | 1.71% | 1.1M | $78.6M | −299,520 (−22.2%) | June 30, 2026 |
| 15 | Dimensional Fund Advisors, Inc. | 1.68% | 1.0M | $77.4M | +12,403 (+1.2%) | June 30, 2026 |
| 16 | Citigroup Inc | 1.66% | 1.0M | $76.5M | +285,122 (+38.6%) | June 30, 2026 |
| 17 | Hudson Bay Capital Management LP | 1.47% | 903K | $67.5M | +278,017 (+44.5%) | June 30, 2026 |
| 18 | FMR Inc | 1.40% | 861K | $64.3M | +92,498 (+12.0%) | June 30, 2026 |
| 19 | Northern Trust Corp | 1.34% | 825K | $61.6M | +14,982 (+1.9%) | June 30, 2026 |
| 20 | Morgan Stanley - Brokerage Accounts | 1.34% | 822K | $61.4M | +48,525 (+6.3%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 15 holders added 2.5M shares and 5 cut 920K.
NWE top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.56% | 2.2M | $163.8M | −780 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.18% | 2.0M | $146.3M | −3,475 (−0.2%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 2.65% | 1.6M | $121.9M | −18,816 (−1.1%) | September 30, 2026 |
| 4 | Franklin Utilities A1 | 2.28% | 1.4M | $104.6M | — | September 30, 2026 |
| 5 | Vanguard Small Cap Index | 2.25% | 1.4M | $103.3M | −33,406 (−2.4%) | September 30, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.46% | 901K | $67.3M | +2,321 (+0.3%) | September 30, 2026 |
| 7 | Fidelity Small Cap Index | 1.12% | 686K | $51.3M | +6,098 (+0.9%) | July 31, 2026 |
| 8 | Nomura Small Cap Core I | 1.10% | 679K | $50.7M | — | August 31, 2026 |
| 9 | Fidelity VIP Mid Cap Initial | 1.07% | 660K | $49.3M | — | August 31, 2026 |
| 10 | iShares Russell 2000 Value ETF | 0.96% | 591K | $44.2M | +896 (+0.2%) | September 30, 2026 |
| 11 | First Trust Value Line® Dividend ETF | 0.75% | 464K | $34.7M | — | September 30, 2026 |
| 12 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.74% | 455K | $34.0M | +5,043 (+1.1%) | September 30, 2026 |
| 13 | Vanguard Utilities ETF | 0.69% | 423K | $31.6M | −1,051 (−0.2%) | September 30, 2026 |
| 14 | Gabelli Utilities AAA | 0.68% | 417K | $31.2M | −7,000 (−1.7%) | June 30, 2026 |
| 15 | American Century Mid Cap Value Inv | 0.63% | 389K | $29.1M | −232,939 (−37.4%) | September 30, 2026 |
| 16 | ProShares S&P MidCap 400 Dividend Arst | 0.61% | 373K | $27.9M | — | September 30, 2026 |
| 17 | Undiscovered Managers Behavioral Val L | 0.60% | 366K | $27.4M | −8,300 (−2.2%) | August 31, 2026 |
| 18 | Vanguard Russell 2000 ETF | 0.59% | 364K | $27.2M | +4,035 (+1.1%) | September 30, 2026 |
| 19 | GMO Alternative Allocation VI | 0.59% | 364K | $27.2M | +87,714 (+31.7%) | May 31, 2026 |
| 20 | State Street SPDR Port S&P 400 Md CpETF | 0.53% | 325K | $24.3M | −456 (−0.1%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
NWE insider transactions
latest 11| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-03 | Gilbert Ray Cisneros, Jr. | Buy | $70.78 | — | — |
| 2025-06-17 | Lisa C. McClain | Sell | $50.87 | — | — |
| 2025-06-09 | Lisa C. McClain | Buy | $52.58 | — | — |
| 2025-02-25 | Britt E Ide | Sell | $54.32 | 702 | $38,133 |
| 2024-12-12 | Anthony Thomas Clark | Sell | $51.95 | 7,400 | $384,430 |
| 2024-12-09 | Britt E Ide | Sell | $53.57 | 700 | $37,499 |
| 2024-08-08 | Britt E Ide | Sell | $51.92 | 688 | $35,721 |
| 2024-05-07 | John D Hines | Sell | $51.15 | 1,565 | $80,050 |
| 2024-05-03 | Britt E Ide | Sell | $51.30 | 687 | $35,243 |
| 2024-05-01 | Bobbi L Schroeppel | Sell | $50.75 | 1,350 | $68,512 |
| 2023-05-16 | Britt E Ide | Sell | $58.65 | 1,200 | $70,380 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
NWE shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns NWE
Institutional investors own 97.7% of NorthWestern's shares and insiders 0.67%. The largest holder is BlackRock Inc with 14.74% of the shares (9.1M), as of June 30, 2026. Among the top 20 institutions, 15 added shares and 5 reduced their stake in the latest filings. Short interest is 4.23% of the float, or 4.17 days of average trading volume. The share count rose 42.9% since 2014.
Related: NWE analyst forecast, NWE key metrics, NWE dividend history. See the NWE stock overview for the latest quote and news.
NWE ownership FAQ
Who owns the most NorthWestern stock?
The largest shareholders of NorthWestern are BlackRock Inc (14.74%), Vanguard Portfolio Management, LLC (5.77%), Vanguard Capital Management, LLC (4.54%), State Street Corp (3.95%), Geode Capital Management, LLC (2.91%).
What percentage of NorthWestern is owned by institutions?
Institutions hold 97.7% of NorthWestern's shares outstanding; insiders hold 0.67%.
Which funds own NorthWestern?
The largest fund holders of NorthWestern are iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.18%), iShares Russell 2000 ETF (2.65%), Franklin Utilities A1 (2.28%), Vanguard Small Cap Index (2.25%).
What is NorthWestern's short interest?
2.0M shares of NorthWestern were sold short, 4.23% of the float; at the average daily volume it would take 4.17 days to cover.
Are insiders buying or selling NorthWestern?
Of the latest 11 reported insider transactions in NorthWestern (since May 16, 2023), 2 were purchases and 9 were sales.
How many shares of NorthWestern are outstanding?
NorthWestern has 61.5M shares outstanding, of which 61.1M are in the public float.
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