NorthWestern Corporation

Historical 13F Holders

Symbol
NWE
CUSIP
668074305
All holders as of
Q2 2026
Type
Equity
Class
COM NEW
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 668074305 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 13.0% 4/3/2025
Event 3/31/2025
Vanguard Portfolio Management LLC 13G 5.7% 4/29/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.3% 4/30/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
American Century Investment Management, Inc. 13G/A
4.8% 8/14/2025
Event 6/30/2025
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 27 315 k $21.6 M
2026 Q2 381 63.8 M $4.28 B
2026 Q1 377 59.8 M $3.94 B
2025 Q4 363 60.3 M $3.89 B
2025 Q3 333 57.9 M $3.39 B
2025 Q2 342 60.5 M $3.11 B
2025 Q1 353 59.5 M $3.44 B
2024 Q4 331 60.4 M $3.23 B
2024 Q3 320 59.7 M $3.41 B
2024 Q2 307 60.1 M $3.01 B
2024 Q1 314 61.3 M $3.12 B
2023 Q4 286 62.3 M $3.17 B
2023 Q3 280 59.3 M $2.85 B
2023 Q2 296 58.5 M $3.31 B
2023 Q1 300 58.5 M $3.39 B
2022 Q4 310 59.6 M $3.54 B
2022 Q3 295 56.6 M $2.79 B
2022 Q2 285 57.1 M $3.37 B
2022 Q1 285 57.6 M $3.48 B
2021 Q4 290 57.2 M $3.27 B
2021 Q3 268 49.2 M $2.82 B
2021 Q2 267 48.1 M $2.90 B
2021 Q1 257 48.1 M $3.13 B
2020 Q4 266 49.0 M $2.86 B
2020 Q3 271 48.9 M $2.38 B
2020 Q2 279 48.8 M $2.66 B
2020 Q1 278 50.2 M $3.00 B
2019 Q4 293 49.9 M $3.58 B
2019 Q3 294 49.6 M $3.72 B
2019 Q2 295 51.8 M $3.77 B
2019 Q1 295 49.1 M $3.46 B
2018 Q4 270 49.9 M $2.96 B
2018 Q3 272 51.6 M $3.03 B
2018 Q2 263 49.6 M $2.84 B
2018 Q1 252 47.0 M $2.53 B
2017 Q4 254 46.6 M $2.78 B
2017 Q3 244 46.0 M $2.62 B
2017 Q2 239 48.3 M $2.95 B
2017 Q1 247 47.2 M $2.77 B
2016 Q4 249 47.7 M $2.71 B
2016 Q3 226 46.9 M $2.70 B
2016 Q2 228 49.6 M $3.11 B
2016 Q1 223 49.5 M $3.06 B
2015 Q4 219 49.3 M $2.67 B
2015 Q3 208 49.0 M $2.64 B
2015 Q2 201 49.3 M $2.40 B
2015 Q1 204 46.2 M $2.49 B
2014 Q4 210 46.9 M $2.65 B
2014 Q3 194 38.8 M $1.76 B
2014 Q2 199 39.8 M $2.08 B
2014 Q1 197 37.7 M $1.79 B