| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | -28% | $469,076,647 | -$183,534,968 | 7,977,494 | -28% | BlackRock, Inc. | 31 Mar 2025 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 4.8% | -18% | $151,448,578 | -$33,749,295 | 2,952,214 | -18% | American Century Investment Management, Inc. | 30 Jun 2025 |
As of 31 Dec 2025, 267 institutional investors reported holding 44,172,754 shares of NorthWestern Energy Group, Inc. - Common Stock (NWE). This represents 72% of the company’s total 61,504,458 outstanding shares.
The largest institutional shareholders of NorthWestern Energy Group, Inc. - Common Stock (NWE) together control 59% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | 8,613,648 | +2.2% | 0.01% | $555,924,840 |
| VANGUARD GROUP INC | 11% | 6,667,340 | -0.42% | 0.01% | $430,310,123 |
| STATE STREET CORP | 4.3% | 2,637,718 | +0.56% | 0.01% | $170,238,320 |
| AMERICAN CENTURY COMPANIES INC | 3.3% | 2,039,629 | -31% | 0.07% | $131,637,849 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 1,628,750 | +0.18% | 0.01% | $105,140,923 |
| FRANKLIN RESOURCES INC | 2.3% | 1,436,750 | +7.4% | 0.02% | $92,727,846 |
| NEUBERGER BERMAN GROUP LLC | 2% | 1,259,921 | -0.67% | 0.06% | $81,324,308 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | 1.9% | 1,159,753 | -1.5% | 1.8% | $74,850,505 |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 1,017,415 | +0.7% | 0.01% | $65,664,423 |
| MORGAN STANLEY | 1.4% | 846,080 | +7.2% | 0% | $54,606,142 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3% | 807,138 | -3.8% | 0.01% | $52,092,687 |
| NORGES BANK | 1.3% | 778,958 | 0.01% | $50,273,949 | |
| Bank of New York Mellon Corp | 1.3% | 774,920 | -10% | 0.01% | $50,013,322 |
| UBS Group AG | 1.2% | 707,822 | +480% | 0.01% | $45,682,833 |
| GOLDMAN SACHS GROUP INC | 1.1% | 657,233 | +171% | 0.01% | $42,417,816 |
| FIRST TRUST ADVISORS LP | 1.1% | 650,323 | -22% | 0.03% | $41,971,850 |
| ProShare Advisors LLC | 1% | 645,335 | -19% | 0.07% | $41,649,920 |
| GW&K Investment Management, LLC | 0.97% | 593,888 | -1.9% | 0.33% | $38,330,000 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 0.93% | 569,334 | -12% | 0.01% | $36,744,816 |
| GABELLI FUNDS LLC | 0.89% | 548,700 | +0.46% | 0.24% | $35,413,098 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 0.82% | 503,220 | -8.6% | 0.11% | $32,477,831 |
| Nuveen, LLC | 0.82% | 502,742 | -23% | 0.01% | $32,446,969 |
| Hudson Bay Capital Management LP | 0.81% | 499,509 | 0.18% | $32,238,311 | |
| Thrivent Financial for Lutherans | 0.8% | 489,871 | +0.2% | 0.06% | $31,617,000 |
| CITIGROUP INC | 0.78% | 482,614 | +12% | 0.02% | $31,147,907 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 44,172,754 | $2,850,725,474 | -$42,076,585 | $64.54 | 267 |
| 2025 Q3 | 57,552,241 | $3,373,040,108 | -$156,391,743 | $58.61 | 325 |
| 2025 Q2 | 60,500,871 | $3,109,180,734 | +$101,943,694 | $51.30 | 333 |
| 2025 Q1 | 58,479,810 | $3,383,766,466 | -$107,982,991 | $57.87 | 343 |
| 2024 Q4 | 60,277,264 | $3,222,735,654 | +$60,001,648 | $53.46 | 320 |
| 2024 Q3 | 59,078,804 | $3,377,822,104 | -$12,522,745 | $57.22 | 309 |
| 2024 Q2 | 58,857,084 | $2,947,580,560 | -$17,639,177 | $50.08 | 296 |
| 2024 Q1 | 58,919,637 | $3,000,717,278 | -$52,481,558 | $50.93 | 301 |
| 2023 Q4 | 59,905,670 | $3,048,633,203 | +$31,568,166 | $50.89 | 276 |
| 2023 Q3 | 59,314,129 | $2,850,614,212 | +$36,341,719 | $48.06 | 270 |
| 2023 Q2 | 58,374,507 | $3,313,790,008 | +$8,310,582 | $56.76 | 286 |
| 2023 Q1 | 58,240,720 | $3,369,760,118 | +$88,300,727 | $57.86 | 286 |
| 2022 Q4 | 56,983,544 | $3,381,194,232 | +$32,990,785 | $59.34 | 296 |
| 2022 Q3 | 56,503,247 | $2,784,849,699 | -$72,709,677 | $49.28 | 279 |
| 2022 Q2 | 57,113,039 | $3,365,749,414 | -$10,637,057 | $58.93 | 269 |
| 2022 Q1 | 57,483,768 | $3,476,564,199 | +$26,764,146 | $60.49 | 264 |
| 2021 Q4 | 57,215,515 | $3,270,577,358 | +$256,084,897 | $57.16 | 268 |
| 2021 Q3 | 49,186,984 | $2,818,546,207 | +$104,524,200 | $57.30 | 257 |
| 2021 Q2 | 48,081,488 | $2,895,881,387 | +$1,073,889 | $60.22 | 257 |
| 2021 Q1 | 48,058,104 | $3,133,792,611 | +$1,352,124 | $65.20 | 246 |
| 2020 Q4 | 48,065,609 | $2,802,177,165 | -$22,772,683 | $58.31 | 247 |
| 2020 Q3 | 48,790,085 | $2,373,320,566 | -$7,655,873 | $48.64 | 257 |
| 2020 Q2 | 48,777,843 | $2,658,977,510 | +$5,522,071 | $54.52 | 266 |
| 2020 Q1 | 48,628,606 | $2,909,550,872 | -$34,561,620 | $59.83 | 262 |
| 2019 Q4 | 49,202,442 | $3,525,002,097 | -$29,984,294 | $71.67 | 281 |
| 2019 Q3 | 49,518,833 | $3,715,168,060 | +$50,344,094 | $75.05 | 285 |
| 2019 Q2 | 48,868,913 | $3,523,352,283 | +$41,505,356 | $72.15 | 281 |
| 2019 Q1 | 48,991,697 | $3,449,055,143 | -$17,671,584 | $70.41 | 283 |
| 2018 Q4 | 49,210,231 | $2,924,936,594 | +$5,887,055 | $59.44 | 258 |
| 2018 Q3 | 49,039,206 | $2,876,610,119 | +$65,009,240 | $58.66 | 259 |
| 2018 Q2 | 47,942,360 | $2,744,732,298 | +$138,995,500 | $57.25 | 255 |
| 2018 Q1 | 45,827,261 | $2,465,398,856 | -$36,210,219 | $53.80 | 243 |
| 2017 Q4 | 46,365,303 | $2,768,514,538 | +$15,360,327 | $59.70 | 245 |
| 2017 Q3 | 45,984,294 | $2,620,004,976 | -$131,599,144 | $56.94 | 238 |
| 2017 Q2 | 48,267,380 | $2,945,013,326 | +$83,653,695 | $61.02 | 236 |
| 2017 Q1 | 46,955,377 | $2,756,536,660 | +$469,155,390 | $58.70 | 240 |
| 2016 Q4 | 47,354,758 | $2,693,078,564 | -$523,540 | $56.87 | 241 |
| 2016 Q3 | 46,888,776 | $2,696,795,730 | -$21,512,689 | $57.53 | 217 |
| 2016 Q2 | 47,384,780 | $2,988,221,159 | -$58,188,433 | $63.07 | 216 |
| 2016 Q1 | 48,763,685 | $3,010,597,349 | -$5,156,173 | $61.75 | 213 |
| 2015 Q4 | 48,978,568 | $2,657,398,526 | +$5,617,620 | $54.25 | 205 |
| 2015 Q3 | 48,996,426 | $2,637,174,159 | -$7,670,066 | $53.83 | 197 |
| 2015 Q2 | 49,319,679 | $2,404,758,113 | +$148,278,048 | $48.75 | 191 |
| 2015 Q1 | 46,244,770 | $2,486,937,503 | -$17,211,608 | $53.79 | 196 |
| 2014 Q4 | 46,468,368 | $2,629,649,267 | +$479,484,164 | $56.58 | 201 |
| 2014 Q3 | 38,836,949 | $1,761,637,721 | +$10,113,639 | $45.36 | 189 |
| 2014 Q2 | 38,387,983 | $2,002,121,323 | +$32,434,406 | $52.19 | 193 |
| 2014 Q1 | 37,731,233 | $1,789,495,557 | +$28,442,916 | $47.43 | 191 |