| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | -28% | $444,107,091 | -$173,765,165 | 7,977,494 | -28% | BlackRock, Inc. | 31 Mar 2025 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 4.8% | -18% | $163,523,133 | -$36,440,029 | 2,952,214 | -18% | American Century Investment Management, Inc. | 30 Jun 2025 |
As of 30 Sep 2025, 324 institutional investors reported holding 57,550,250 shares of NorthWestern Energy Group, Inc. - Common Stock (NWE). This represents 94% of the company’s total 61,504,458 outstanding shares.
The largest institutional shareholders of NorthWestern Energy Group, Inc. - Common Stock (NWE) together control 69% 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% | 8,427,244 | -3.6% | 0.01% | $493,920,773 |
| VANGUARD GROUP INC | 11% | 6,695,664 | -3.7% | 0.01% | $392,432,867 |
| AMERICAN CENTURY COMPANIES INC | 4.8% | 2,968,816 | +0.56% | 0.09% | $174,002,435 |
| STATE STREET CORP | 4.3% | 2,622,967 | +1.1% | 0.01% | $153,732,096 |
| River Road Asset Management, LLC | 3.7% | 2,291,490 | -0.33% | 1.5% | $134,304,229 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 1,625,762 | +3.1% | 0.01% | $95,303,886 |
| FRANKLIN RESOURCES INC | 2.2% | 1,338,278 | +0.32% | 0.02% | $78,436,474 |
| NEUBERGER BERMAN GROUP LLC | 2.1% | 1,268,440 | -0.44% | 0.05% | $74,314,358 |
| MACQUARIE GROUP LTD | 1.9% | 1,185,751 | -9.4% | 0.08% | $69,496,599 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | 1.9% | 1,176,980 | +2.8% | 1.7% | $68,982,851 |
| AQR CAPITAL MANAGEMENT LLC | 1.9% | 1,147,269 | +70% | 0.04% | $67,241,432 |
| FMR LLC | 1.8% | 1,123,183 | -7% | 0% | $65,829,750 |
| DIMENSIONAL FUND ADVISORS LP | 1.6% | 1,010,359 | -0.36% | 0.01% | $59,215,451 |
| WESTWOOD HOLDINGS GROUP INC | 1.6% | 981,250 | -12% | 0.41% | $57,511,000 |
| Bank of New York Mellon Corp | 1.4% | 861,330 | -1.4% | 0.01% | $50,482,528 |
| BANK OF AMERICA CORP /DE/ | 1.4% | 855,585 | -30% | 0% | $50,145,829 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4% | 838,789 | -1.9% | 0.01% | $49,161,423 |
| FIRST TRUST ADVISORS LP | 1.4% | 832,389 | -8.9% | 0.04% | $48,786,312 |
| Invesco Ltd. | 1.3% | 817,838 | +2.7% | 0.01% | $47,933,486 |
| NORTHERN TRUST CORP | 1.3% | 811,749 | -0.59% | 0.01% | $47,576,609 |
| ProShare Advisors LLC | 1.3% | 794,913 | +14% | 0.1% | $46,589,852 |
| MORGAN STANLEY | 1.3% | 788,961 | -8.8% | 0% | $46,241,126 |
| Nuveen, LLC | 1.1% | 654,536 | -6% | 0.01% | $38,362,354 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.1% | 646,893 | -24% | 0.01% | $37,914,399 |
| VICTORY CAPITAL MANAGEMENT INC | 1% | 641,440 | -19% | 0.02% | $37,594,799 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 227,174 | $14,675,949 | +$2,167,776 | $64.54 | 15 |
| 2025 Q3 | 57,550,250 | $3,372,924,930 | -$157,551,296 | $58.61 | 324 |
| 2025 Q2 | 60,500,871 | $3,109,180,734 | +$101,943,662 | $51.30 | 333 |
| 2025 Q1 | 58,479,810 | $3,383,765,992 | -$107,982,997 | $57.87 | 343 |
| 2024 Q4 | 60,245,149 | $3,221,022,577 | +$108,419,383 | $53.46 | 318 |
| 2024 Q3 | 58,134,860 | $3,323,809,558 | -$59,528,422 | $57.22 | 307 |
| 2024 Q2 | 58,819,468 | $2,945,696,737 | +$18,974,037 | $50.08 | 293 |
| 2024 Q1 | 58,139,564 | $2,960,988,113 | -$77,082,478 | $50.93 | 297 |
| 2023 Q4 | 653,702 | $33,279,245 | +$25,196,074 | $50.89 | 4 |
| 2023 Q3 | 58,575,399 | $2,815,111,558 | +$28,764,326 | $48.06 | 267 |
| 2023 Q2 | 57,665,294 | $3,273,535,184 | -$15,633,704 | $56.76 | 283 |
| 2023 Q1 | 58,163,945 | $3,365,318,491 | +$89,278,625 | $57.86 | 284 |
| 2022 Q4 | 56,931,609 | $3,378,112,243 | +$32,146,661 | $59.34 | 295 |
| 2022 Q3 | 52,954,366 | $2,609,959,757 | -$81,152,776 | $49.28 | 271 |
| 2022 Q2 | 55,472,279 | $3,269,058,877 | -$14,821,390 | $58.93 | 263 |
| 2022 Q1 | 55,377,603 | $3,349,161,909 | +$47,996,375 | $60.49 | 259 |
| 2021 Q4 | 56,877,393 | $3,251,252,615 | +$446,190,079 | $57.16 | 263 |
| 2021 Q3 | 49,187,096 | $2,818,552,462 | +$103,158,208 | $57.30 | 257 |
| 2021 Q2 | 48,043,210 | $2,893,797,604 | -$2,783,666 | $60.22 | 254 |
| 2021 Q1 | 47,055,141 | $3,068,311,611 | +$5,498,138 | $65.20 | 247 |
| 2020 Q4 | 48,065,609 | $2,801,071,272 | -$22,728,319 | $58.31 | 247 |
| 2020 Q3 | 48,021,265 | $2,335,926,253 | -$6,516,227 | $48.64 | 253 |
| 2020 Q2 | 48,777,816 | $2,658,976,038 | +$1,786,129 | $54.52 | 265 |
| 2020 Q1 | 48,609,955 | $2,908,437,257 | -$28,777,224 | $59.83 | 260 |
| 2019 Q4 | 48,837,329 | $3,498,838,387 | -$27,932,414 | $71.67 | 275 |
| 2019 Q3 | 49,122,865 | $3,685,450,561 | +$51,920,999 | $75.05 | 281 |
| 2019 Q2 | 48,378,282 | $3,487,955,505 | +$95,172,900 | $72.15 | 275 |
| 2019 Q1 | 48,457,008 | $3,411,409,862 | -$28,938,689 | $70.41 | 277 |
| 2018 Q4 | 48,827,551 | $2,902,192,136 | +$734,525 | $59.44 | 254 |
| 2018 Q3 | 48,725,483 | $2,858,208,719 | +$69,161,621 | $58.66 | 254 |
| 2018 Q2 | 47,562,012 | $2,722,959,298 | +$174,447,639 | $57.25 | 252 |
| 2018 Q1 | 45,784,900 | $2,463,120,856 | -$37,130,937 | $53.80 | 241 |
| 2017 Q4 | 44,752,099 | $2,672,205,538 | +$15,663,197 | $59.70 | 242 |
| 2017 Q3 | 45,654,717 | $2,601,240,976 | -$133,217,227 | $56.94 | 237 |
| 2017 Q2 | 48,218,165 | $2,942,013,835 | +$80,409,635 | $61.02 | 233 |
| 2017 Q1 | 35,135,827 | $2,062,727,660 | -$76,495,104 | $58.70 | 238 |
| 2016 Q4 | 44,803,510 | $2,547,990,564 | -$39,615,306 | $56.87 | 238 |
| 2016 Q3 | 46,810,570 | $2,692,296,730 | -$22,570,134 | $57.53 | 215 |
| 2016 Q2 | 47,384,726 | $2,988,218,159 | -$58,296,462 | $63.07 | 215 |
| 2016 Q1 | 48,763,631 | $3,010,594,349 | -$4,723,487 | $61.75 | 212 |
| 2015 Q4 | 48,649,321 | $2,639,536,526 | -$6,422,718 | $54.25 | 202 |
| 2015 Q3 | 48,990,973 | $2,636,880,159 | +$18,592,047 | $53.83 | 196 |
| 2015 Q2 | 47,812,830 | $2,331,300,113 | +$125,046,890 | $48.75 | 189 |
| 2015 Q1 | 46,212,202 | $2,485,185,503 | -$21,180,408 | $53.79 | 193 |
| 2014 Q4 | 46,248,947 | $2,617,234,267 | +$477,403,734 | $56.58 | 198 |
| 2014 Q3 | 38,836,949 | $1,761,637,721 | +$10,113,666 | $45.36 | 189 |
| 2014 Q2 | 38,387,983 | $2,002,121,323 | +$33,035,803 | $52.19 | 193 |
| 2014 Q1 | 37,166,152 | $1,762,693,557 | +$25,326,852 | $47.43 | 189 |