NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

Swiss National Bank's Holding History (CIK: 0001582202)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 121,083 Value ($000) $7,815 Avg Close $62.82 Range $56.07 - $68.56

Q3 2025

Shares 118,983 Value ($000) $6,974 Avg Close $54.14 Range $49.85 - $58.24

Q2 2025

Shares 117,083 Value ($000) $6,006 Avg Close $53.53 Range $49.39 - $57.89

Q1 2025

Shares 118,783 Value ($000) $6,874 Avg Close $52.06 Range $48.49 - $56.12

Q4 2024

Shares 120,583 Value ($000) $6,446 Avg Close $51.38 Range $48.17 - $54.22

Q3 2024

Shares 119,683 Value ($000) $6,848 Avg Close $49.89 Range $45.22 - $54.21

Q2 2024

Shares 120,683 Value ($000) $6,044 Avg Close $46.58 Range $43.68 - $48.79

Q1 2024

Shares 120,683 Value ($000) $6,146 Avg Close $44.40 Range $41.90 - $47.03

Q4 2023

Shares 120,683 Value ($000) $6,142 Avg Close $44.88 Range $41.24 - $48.79

Q3 2023

Shares 131,383 Value ($000) $6,314 Avg Close $47.33 Range $42.66 - $51.72

Q2 2023

Shares 130,083 Value ($000) $7,384 Avg Close $51.34 Range $48.87 - $53.67

Q1 2023

Shares 124,783 Value ($000) $7,220 Avg Close $49.59 Range $46.79 - $52.43

Q4 2022

Shares 135,583 Value ($000) $8,045 Avg Close $46.84 Range $41.72 - $52.07

Q3 2022

Shares 128,383 Value ($000) $6,327 Avg Close $46.61 Range $42.04 - $51.24

Q2 2022

Shares 127,483 Value ($000) $7,513 Avg Close $49.98 Range $45.98 - $52.83

Q1 2022

Shares 129,983 Value ($000) $7,863 Avg Close $48.63 Range $46.08 - $51.75

Q4 2021

Shares 113,483 Value ($000) $6,487 Avg Close $46.70 Range $43.99 - $49.52

Q3 2021

Shares 111,983 Value ($000) $6,417 Avg Close $50.51 Range $46.92 - $53.26

Q2 2021

Shares 111,583 Value ($000) $6,720 Avg Close $52.44 Range $48.13 - $56.92

Q1 2021

Shares 115,583 Value ($000) $7,536 Avg Close $47.20 Range $42.31 - $53.28

Q4 2020

Shares 114,483 Value ($000) $6,676 Avg Close $43.87 Range $37.97 - $49.46

Q3 2020

Shares 114,483 Value ($000) $5,568 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 112,683 Value ($000) $6,143 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 97,883 Value ($000) $5,856 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 96,583 Value ($000) $6,922 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 94,983 Value ($000) $7,128 Avg Close $54.27 Range $50.60 - $58.08

Q2 2019

Shares 93,683 Value ($000) $6,759 Avg Close $53.01 Range $50.21 - $55.53

Q1 2019

Shares 91,683 Value ($000) $6,455 Avg Close $48.59 Range $42.38 - $53.49

Q4 2018

Shares 88,983 Value ($000) $5,289 Avg Close $45.03 Range $41.21 - $48.18

Q3 2018

Shares 86,883 Value ($000) $5,097 Avg Close $43.15 Range $40.65 - $45.13

Q2 2018

Shares 86,883 Value ($000) $4,974 Avg Close $39.06 Range $37.03 - $41.93

Q1 2018

Shares 84,483 Value ($000) $4,545 Avg Close $37.69 Range $35.55 - $42.53

Q4 2017

Shares 82,583 Value ($000) $4,930 Avg Close $42.54 Range $39.78 - $45.45

Q3 2017

Shares 80,783 Value ($000) $4,600 Avg Close $41.74 Range $40.09 - $43.18

Q2 2017

Shares 80,783 Value ($000) $4,929 Avg Close $42.35 Range $40.29 - $44.62

Q1 2017

Shares 79,483 Value ($000) $4,666 Avg Close $39.52 Range $38.19 - $41.05

Q4 2016

Shares 79,483 Value ($000) $4,520 Avg Close $38.33 Range $36.64 - $40.23

Q3 2016

Shares 77,083 Value ($000) $4,435 Avg Close $40.31 Range $38.22 - $43.00

Q2 2016

Shares 79,883 Value ($000) $5,038 Avg Close $39.68 Range $37.02 - $42.70

Q1 2016

Shares 79,383 Value ($000) $4,732 Avg Close $38.33 Range $34.60 - $41.62

Q4 2015

Shares 62,583 Value ($000) $3,395 Avg Close $35.84 Range $33.71 - $37.52

Q3 2015

Shares 60,100 Value ($000) $3,235 Avg Close $34.01 Range $31.66 - $36.90

Q2 2015

Shares 52,100 Value ($000) $2,540 Avg Close $33.40 Range $31.54 - $35.25

Q1 2015

Shares 50,200 Value ($000) $2,700 Avg Close $35.30 Range $32.73 - $38.16

Q4 2014

Shares 52,000 Value ($000) $2,942 Avg Close $33.16 Range $28.63 - $37.51

Q3 2014

Shares 42,700 Value ($000) $1,937 Avg Close $30.29 Range $28.46 - $33.15

Q2 2014

Shares 43,400 Value ($000) $2,265 Avg Close $30.04 Range $28.38 - $33.02

Q1 2014

Shares 43,400 Value ($000) $2,058 Avg Close $27.98 Range $26.36 - $29.86

Q4 2013

Shares 37,500 Value ($000) $1,625 Avg Close $27.40 Range $25.54 - $28.91

Q3 2013

Shares 36,400 Value ($000) $1,635 Avg Close $25.46 Range $23.73 - $28.10

Q2 2013

Shares 34,700 Value ($000) $1,385 Avg Close $24.78 Range $23.14 - $25.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	121,083	$7,815	$62.82	$56.07 - $68.56
Q3 2025	118,983	$6,974	$54.14	$49.85 - $58.24
Q2 2025	117,083	$6,006	$53.53	$49.39 - $57.89
Q1 2025	118,783	$6,874	$52.06	$48.49 - $56.12
Q4 2024	120,583	$6,446	$51.38	$48.17 - $54.22
Q3 2024	119,683	$6,848	$49.89	$45.22 - $54.21
Q2 2024	120,683	$6,044	$46.58	$43.68 - $48.79
Q1 2024	120,683	$6,146	$44.40	$41.90 - $47.03
Q4 2023	120,683	$6,142	$44.88	$41.24 - $48.79
Q3 2023	131,383	$6,314	$47.33	$42.66 - $51.72
Q2 2023	130,083	$7,384	$51.34	$48.87 - $53.67
Q1 2023	124,783	$7,220	$49.59	$46.79 - $52.43
Q4 2022	135,583	$8,045	$46.84	$41.72 - $52.07
Q3 2022	128,383	$6,327	$46.61	$42.04 - $51.24
Q2 2022	127,483	$7,513	$49.98	$45.98 - $52.83
Q1 2022	129,983	$7,863	$48.63	$46.08 - $51.75
Q4 2021	113,483	$6,487	$46.70	$43.99 - $49.52
Q3 2021	111,983	$6,417	$50.51	$46.92 - $53.26
Q2 2021	111,583	$6,720	$52.44	$48.13 - $56.92
Q1 2021	115,583	$7,536	$47.20	$42.31 - $53.28
Q4 2020	114,483	$6,676	$43.87	$37.97 - $49.46
Q3 2020	114,483	$5,568	$41.40	$37.35 - $45.52
Q2 2020	112,683	$6,143	$44.67	$39.68 - $50.33
Q1 2020	97,883	$5,856	$54.52	$34.68 - $61.46
Q4 2019	96,583	$6,922	$54.65	$51.50 - $57.67
Q3 2019	94,983	$7,128	$54.27	$50.60 - $58.08
Q2 2019	93,683	$6,759	$53.01	$50.21 - $55.53
Q1 2019	91,683	$6,455	$48.59	$42.38 - $53.49
Q4 2018	88,983	$5,289	$45.03	$41.21 - $48.18
Q3 2018	86,883	$5,097	$43.15	$40.65 - $45.13
Q2 2018	86,883	$4,974	$39.06	$37.03 - $41.93
Q1 2018	84,483	$4,545	$37.69	$35.55 - $42.53
Q4 2017	82,583	$4,930	$42.54	$39.78 - $45.45
Q3 2017	80,783	$4,600	$41.74	$40.09 - $43.18
Q2 2017	80,783	$4,929	$42.35	$40.29 - $44.62
Q1 2017	79,483	$4,666	$39.52	$38.19 - $41.05
Q4 2016	79,483	$4,520	$38.33	$36.64 - $40.23
Q3 2016	77,083	$4,435	$40.31	$38.22 - $43.00
Q2 2016	79,883	$5,038	$39.68	$37.02 - $42.70
Q1 2016	79,383	$4,732	$38.33	$34.60 - $41.62
Q4 2015	62,583	$3,395	$35.84	$33.71 - $37.52
Q3 2015	60,100	$3,235	$34.01	$31.66 - $36.90
Q2 2015	52,100	$2,540	$33.40	$31.54 - $35.25
Q1 2015	50,200	$2,700	$35.30	$32.73 - $38.16
Q4 2014	52,000	$2,942	$33.16	$28.63 - $37.51
Q3 2014	42,700	$1,937	$30.29	$28.46 - $33.15
Q2 2014	43,400	$2,265	$30.04	$28.38 - $33.02
Q1 2014	43,400	$2,058	$27.98	$26.36 - $29.86
Q4 2013	37,500	$1,625	$27.40	$25.54 - $28.91
Q3 2013	36,400	$1,635	$25.46	$23.73 - $28.10
Q2 2013	34,700	$1,385	$24.78	$23.14 - $25.97