NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

Bank of New York Mellon Corp's Holding History (CIK: 0001390777)

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

Q4 2025

Shares 774,920 Value ($000) $50,013 Avg Close $62.82 Range $56.07 - $68.56

Q3 2025

Shares 861,330 Value ($000) $50,483 Avg Close $54.14 Range $49.85 - $58.24

Q2 2025

Shares 873,172 Value ($000) $44,794 Avg Close $53.53 Range $49.39 - $57.89

Q1 2025

Shares 865,807 Value ($000) $50,104 Avg Close $52.06 Range $48.49 - $56.12

Q4 2024

Shares 886,066 Value ($000) $47,369 Avg Close $51.38 Range $48.17 - $54.22

Q3 2024

Shares 750,455 Value ($000) $42,941 Avg Close $49.89 Range $45.22 - $54.21

Q2 2024

Shares 849,064 Value ($000) $42,521 Avg Close $46.58 Range $43.68 - $48.79

Q1 2024

Shares 836,973 Value ($000) $42,627 Avg Close $44.40 Range $41.90 - $47.03

Q4 2023

Shares 1,060,483 Value ($000) $53,968 Avg Close $44.88 Range $41.24 - $48.79

Q3 2023

Shares 1,045,538 Value ($000) $50,249 Avg Close $47.33 Range $42.66 - $51.72

Q2 2023

Shares 1,173,302 Value ($000) $66,597 Avg Close $51.34 Range $48.87 - $53.67

Q1 2023

Shares 1,107,737 Value ($000) $64,094 Avg Close $49.59 Range $46.79 - $52.43

Q4 2022

Shares 1,147,905 Value ($000) $68,117 Avg Close $46.84 Range $41.72 - $52.07

Q3 2022

Shares 1,232,053 Value ($000) $60,715 Avg Close $46.61 Range $42.04 - $51.24

Q2 2022

Shares 1,240,959 Value ($000) $73,128 Avg Close $49.98 Range $45.98 - $52.83

Q1 2022

Shares 1,310,395 Value ($000) $79,266 Avg Close $48.63 Range $46.08 - $51.75

Q4 2021

Shares 1,220,018 Value ($000) $69,737 Avg Close $46.70 Range $43.99 - $49.52

Q3 2021

Shares 1,140,044 Value ($000) $65,324 Avg Close $50.51 Range $46.92 - $53.26

Q2 2021

Shares 1,138,693 Value ($000) $68,573 Avg Close $52.44 Range $48.13 - $56.92

Q1 2021

Shares 1,077,787 Value ($000) $70,272 Avg Close $47.20 Range $42.31 - $53.28

Q4 2020

Shares 1,099,415 Value ($000) $64,106 Avg Close $43.87 Range $37.97 - $49.46

Q3 2020

Shares 988,087 Value ($000) $48,061 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 1,006,926 Value ($000) $54,898 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 893,572 Value ($000) $53,463 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 742,183 Value ($000) $53,193 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 799,368 Value ($000) $59,993 Avg Close $54.27 Range $50.60 - $58.08

Q2 2019

Shares 806,769 Value ($000) $58,208 Avg Close $53.01 Range $50.21 - $55.53

Q1 2019

Shares 764,270 Value ($000) $53,814 Avg Close $48.59 Range $42.38 - $53.49

Q4 2018

Shares 971,334 Value ($000) $57,736 Avg Close $45.03 Range $41.21 - $48.18

Q3 2018

Shares 1,414,720 Value ($000) $82,987 Avg Close $43.15 Range $40.65 - $45.13

Q2 2018

Shares 1,393,956 Value ($000) $79,803 Avg Close $39.06 Range $37.03 - $41.93

Q1 2018

Shares 1,344,065 Value ($000) $72,312 Avg Close $37.69 Range $35.55 - $42.53

Q4 2017

Shares 907,005 Value ($000) $54,149 Avg Close $42.54 Range $39.78 - $45.45

Q3 2017

Shares 935,155 Value ($000) $53,249 Avg Close $41.74 Range $40.09 - $43.18

Q2 2017

Shares 939,202 Value ($000) $57,310 Avg Close $42.35 Range $40.29 - $44.62

Q1 2017

Shares 940,291 Value ($000) $55,194 Avg Close $39.52 Range $38.19 - $41.05

Q4 2016

Shares 905,595 Value ($000) $51,502 Avg Close $38.33 Range $36.64 - $40.23

Q3 2016

Shares 645,487 Value ($000) $37,134 Avg Close $40.31 Range $38.22 - $43.00

Q2 2016

Shares 679,527 Value ($000) $42,857 Avg Close $39.68 Range $37.02 - $42.70

Q1 2016

Shares 1,051,812 Value ($000) $64,950 Avg Close $38.33 Range $34.60 - $41.62

Q4 2015

Shares 1,304,575 Value ($000) $70,773 Avg Close $35.84 Range $33.71 - $37.52

Q3 2015

Shares 1,465,808 Value ($000) $78,905 Avg Close $34.01 Range $31.66 - $36.90

Q2 2015

Shares 1,320,709 Value ($000) $64,386 Avg Close $33.40 Range $31.54 - $35.25

Q1 2015

Shares 1,289,127 Value ($000) $69,343 Avg Close $35.30 Range $32.73 - $38.16

Q4 2014

Shares 1,090,883 Value ($000) $61,723 Avg Close $33.16 Range $28.63 - $37.51

Q3 2014

Shares 1,071,969 Value ($000) $48,623 Avg Close $30.29 Range $28.46 - $33.15

Q2 2014

Shares 1,074,826 Value ($000) $56,096 Avg Close $30.04 Range $28.38 - $33.02

Q1 2014

Shares 1,044,118 Value ($000) $49,522 Avg Close $27.98 Range $26.36 - $29.86

Q4 2013

Shares 1,039,862 Value ($000) $45,047 Avg Close $27.40 Range $25.54 - $28.91

Q3 2013

Shares 1,029,894 Value ($000) $46,263 Avg Close $25.46 Range $23.73 - $28.10

Q2 2013

Shares 986,845 Value ($000) $39,376 Avg Close $24.78 Range $23.14 - $25.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	774,920	$50,013	$62.82	$56.07 - $68.56
Q3 2025	861,330	$50,483	$54.14	$49.85 - $58.24
Q2 2025	873,172	$44,794	$53.53	$49.39 - $57.89
Q1 2025	865,807	$50,104	$52.06	$48.49 - $56.12
Q4 2024	886,066	$47,369	$51.38	$48.17 - $54.22
Q3 2024	750,455	$42,941	$49.89	$45.22 - $54.21
Q2 2024	849,064	$42,521	$46.58	$43.68 - $48.79
Q1 2024	836,973	$42,627	$44.40	$41.90 - $47.03
Q4 2023	1,060,483	$53,968	$44.88	$41.24 - $48.79
Q3 2023	1,045,538	$50,249	$47.33	$42.66 - $51.72
Q2 2023	1,173,302	$66,597	$51.34	$48.87 - $53.67
Q1 2023	1,107,737	$64,094	$49.59	$46.79 - $52.43
Q4 2022	1,147,905	$68,117	$46.84	$41.72 - $52.07
Q3 2022	1,232,053	$60,715	$46.61	$42.04 - $51.24
Q2 2022	1,240,959	$73,128	$49.98	$45.98 - $52.83
Q1 2022	1,310,395	$79,266	$48.63	$46.08 - $51.75
Q4 2021	1,220,018	$69,737	$46.70	$43.99 - $49.52
Q3 2021	1,140,044	$65,324	$50.51	$46.92 - $53.26
Q2 2021	1,138,693	$68,573	$52.44	$48.13 - $56.92
Q1 2021	1,077,787	$70,272	$47.20	$42.31 - $53.28
Q4 2020	1,099,415	$64,106	$43.87	$37.97 - $49.46
Q3 2020	988,087	$48,061	$41.40	$37.35 - $45.52
Q2 2020	1,006,926	$54,898	$44.67	$39.68 - $50.33
Q1 2020	893,572	$53,463	$54.52	$34.68 - $61.46
Q4 2019	742,183	$53,193	$54.65	$51.50 - $57.67
Q3 2019	799,368	$59,993	$54.27	$50.60 - $58.08
Q2 2019	806,769	$58,208	$53.01	$50.21 - $55.53
Q1 2019	764,270	$53,814	$48.59	$42.38 - $53.49
Q4 2018	971,334	$57,736	$45.03	$41.21 - $48.18
Q3 2018	1,414,720	$82,987	$43.15	$40.65 - $45.13
Q2 2018	1,393,956	$79,803	$39.06	$37.03 - $41.93
Q1 2018	1,344,065	$72,312	$37.69	$35.55 - $42.53
Q4 2017	907,005	$54,149	$42.54	$39.78 - $45.45
Q3 2017	935,155	$53,249	$41.74	$40.09 - $43.18
Q2 2017	939,202	$57,310	$42.35	$40.29 - $44.62
Q1 2017	940,291	$55,194	$39.52	$38.19 - $41.05
Q4 2016	905,595	$51,502	$38.33	$36.64 - $40.23
Q3 2016	645,487	$37,134	$40.31	$38.22 - $43.00
Q2 2016	679,527	$42,857	$39.68	$37.02 - $42.70
Q1 2016	1,051,812	$64,950	$38.33	$34.60 - $41.62
Q4 2015	1,304,575	$70,773	$35.84	$33.71 - $37.52
Q3 2015	1,465,808	$78,905	$34.01	$31.66 - $36.90
Q2 2015	1,320,709	$64,386	$33.40	$31.54 - $35.25
Q1 2015	1,289,127	$69,343	$35.30	$32.73 - $38.16
Q4 2014	1,090,883	$61,723	$33.16	$28.63 - $37.51
Q3 2014	1,071,969	$48,623	$30.29	$28.46 - $33.15
Q2 2014	1,074,826	$56,096	$30.04	$28.38 - $33.02
Q1 2014	1,044,118	$49,522	$27.98	$26.36 - $29.86
Q4 2013	1,039,862	$45,047	$27.40	$25.54 - $28.91
Q3 2013	1,029,894	$46,263	$25.46	$23.73 - $28.10
Q2 2013	986,845	$39,376	$24.78	$23.14 - $25.97