NorthWestern Energy Group, Inc.
US ˙ NasdaqGS ˙ US6680743050

SecurityNWE / NorthWestern Energy Group, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,023,230 shares
Latest Disclosed Value $ 67,471,854
Dimensional Fund Advisors Lp reports 0.57% increase in ownership of NWE / NorthWestern Energy Group, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,023,230 shares of NorthWestern Energy Group, Inc. (US:NWE) valued at $67,471,786 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,017,415 shares of NorthWestern Energy Group, Inc.. This represents a change in shares of 0.57% during the quarter. The current value of the position is $70,766,587 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,023,230 5,815 0.57 67,472 2.75 0.0140
2026-02-12 2025-12-31 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,017,415 7,056 0.70 65,664 10.89 0.0138
2025-11-12 2025-09-30 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,010,359 -3,681 -0.36 59,215 13.83 0.0127
2025-08-12 2025-06-30 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,014,040 -9,673 -0.94 52,019 -12.19 0.0120
2025-05-13 2025-03-31 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,023,713 -9,724 -0.94 59,239 7.23 0.0147
2025-02-13 2024-12-31 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,033,437 4,544 0.44 55,248 -6.16 0.0133
2024-11-07 2024-09-30 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,028,893 1,195 0.12 58,873 14.39 0.0143
2024-08-09 2024-06-30 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 1,027,698 61,216 6.33 51,467 4.56 0.0134
2024-05-10 2024-03-31 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 966,482 10,355 1.08 49,223 1.16 0.0133
2024-02-07 2023-12-31 13F NORTHWESTERN ENERGY GROUP IN COM NEW 668074305 956,127 3,849 0.40 48,658 6.32 0.0142
2023-11-09 2023-09-30 13F NORTHWESTERN COM NEW 668074305 952,278 -13,966 -1.45 45,766 -16.55 0.0150
2023-08-09 2023-06-30 13F NORTHWESTERN COM NEW 668074305 966,244 13,391 1.41 54,844 -0.52 0.0175
2023-05-12 2023-03-31 13F NORTHWESTERN COM NEW 668074305 952,853 -13,361 -1.38 55,131 96,621.05 0.0186
2023-02-09 2022-12-31 13F NORTHWESTERN COM NEW 668074305 966,214 28,036 2.99 57 -99.88 0.0169
2022-11-10 2022-09-30 13F NORTHWESTERN COM NEW 668074305 938,178 32,841 3.63 46,235 -13.34 0.0178
2022-08-12 2022-06-30 13F NORTHWESTERN COM NEW 668074305 905,337 14,632 1.64 53,350 -0.98 0.0191
2022-05-13 2022-03-31 13F NORTHWESTERN COM 668074305 890,705 13,040 1.49 53,878 7.40 0.0166
2022-02-09 2021-12-31 13F NORTHWESTERN COM 668074305 877,665 10,967 1.27 50,168 1.01 0.0152
2021-11-12 2021-09-30 13F NORTHWESTERN COM 668074305 866,698 41,972 5.09 49,664 0.00 0.0160
2021-08-12 2021-06-30 13F NORTHWESTERN COM 668074305 824,726 -64,475 -7.25 49,664 -14.52 0.0157
2021-05-14 2021-03-31 13F NORTHWESTERN COM 668074305 889,201 715 0.08 58,100 12.15 0.0192
2021-03-08 2020-12-31 13F/A-2 NORTHWESTERN COM 668074305 888,486 -11,114 -1.24 51,806 18.40 0.0187
2021-02-11 2020-12-31 13F NORTHWESTERN COM 668074305 888,486 -11,114 51,806 18,709.5736
2020-11-12 2020-09-30 13F NORTHWESTERN COM 668074305 899,600 -82,178 -8.37 43,756 -18.25 0.0186
2020-08-13 2020-06-30 13F NORTHWESTERN COM 668074305 981,778 -25,628 -2.54 53,526 -11.20 0.0235
2020-05-14 2020-03-31 13F NORTHWESTERN COM 668074305 1,007,406 -19,939 -1.94 60,277 -18.14 0.0314
2020-02-14 2019-12-31 13F NORTHWESTERN COM 668074305 1,027,345 -38,529 -3.61 73,630 -7.96 0.0268
2019-11-12 2019-09-30 13F NORTHWESTERN COM 668074305 1,065,874 -3,129 -0.29 79,994 3.72 0.0311
2019-08-13 2019-06-30 13F NORTHWESTERN COM 668074305 1,069,003 -263 -0.02 77,128 2.45 0.0299
2019-08-12 2019-03-31 13F/A-2 NORTHWESTERN COM 668074305 1,069,266 5,702 0.54 75,286 19.09 0.0300
2019-05-10 2019-03-31 13F NORTHWESTERN COM 668074305 1,069,266 5,702 75,286
2019-02-26 2018-12-31 13F/A-1 NORTHWESTERN COM 668074305 1,063,564 18,787 1.80 63,218 3.15 0.0286
2019-02-13 2018-12-31 13F NORTHWESTERN COM 668074305 1,063,564 18,787 63,218
2018-11-13 2018-09-30 13F NORTHWESTERN COM 668074305 1,044,777 1,766 0.17 61,285 2.63 0.0233
2018-08-10 2018-06-30 13F NORTHWESTERN COM 668074305 1,043,011 30,163 2.98 59,712 9.58 0.0238
2018-05-11 2018-03-31 13F NORTHWESTERN COM 668074305 1,012,848 14,099 1.41 54,491 -8.61 0.0227
2018-02-12 2017-12-31 13F NORTHWESTERN COM 668074305 998,749 10,825 1.10 59,625 5.99 0.0247
2017-11-13 2017-09-30 13F NORTHWESTERN COM 668074305 987,924 7,630 0.78 56,253 -5.96 0.0246
2017-08-11 2017-06-30 13F NORTHWESTERN COM 668074305 980,294 3,762 0.39 59,818 4.35 0.0276
2017-05-12 2017-03-31 13F NORTHWESTERN COM 668074305 976,532 23,652 2.48 57,323 5.78 0.0274
2017-02-09 2016-12-31 13F NORTHWESTERN COM 668074305 952,880 6,130 0.65 54,191 -0.51 0.0271
2016-11-10 2016-09-30 13F NORTHWESTERN COM 668074305 946,750 6,313 0.67 54,467 -8.17 0.0294
2016-08-09 2016-06-30 13F NORTHWESTERN COM 668074305 940,437 4,026 0.43 59,312 2.58 0.0341
2016-05-13 2016-03-31 13F NORTHWESTERN COM 668074305 936,411 35,710 3.96 57,823 18.33 0.0346
2016-02-10 2015-12-31 13F NORTHWESTERN COM 668074305 900,701 72,673 8.78 48,865 9.63 0.0305
2015-11-13 2015-09-30 13F NORTHWESTERN COM 668074305 828,028 16,369 2.02 44,572 12.64 0.0293
2015-08-14 2015-06-30 13F NORTHWESTERN COM 668074305 811,659 40,162 5.21 39,569 -4.65 0.0242
2015-05-14 2015-03-31 13F NORTHWESTERN COM 668074305 771,497 118,404 18.13 41,498 12.30 0.0262
2015-02-06 2014-12-31 13F NORTHWESTERN COM 668074305 653,093 52,298 8.70 36,953 35.59 0.0243
2014-11-13 2014-09-30 13F NORTHWESTERN COM 668074305 600,795 18,474 3.17 27,253 -10.33 0.0193
2014-08-08 2014-06-30 13F NORTHWESTERN COM 668074305 582,321 55,753 10.59 30,391 21.69 0.0211
2014-05-14 2014-03-31 13F NORTHWESTERN COM 668074305 526,568 11,532 2.24 24,974 11.93 0.0187
2014-02-12 2013-12-31 13F NORTHWESTERN COM 668074305 515,036 18,175 3.66 22,312 -0.03 0.0174
2013-11-13 2013-09-30 13F NORTHWESTERN COM 668074305 496,861 24,884 5.27 22,319 18.52 0.0193
2013-08-15 2013-06-30 13F NORTHWESTERN COM 668074305 471,977 471,977 18,832 0.0177
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.