NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000922127)

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

Q4 2025

Shares 122,803 Value ($000) $7,926 Avg Close $62.82 Range $56.07 - $68.56

Q3 2025

Shares 130,287 Value ($000) $7,636 Avg Close $54.14 Range $49.85 - $58.24

Q2 2025

Shares 137,020 Value ($000) $7,029 Avg Close $53.53 Range $49.39 - $57.89

Q1 2025

Shares 116,089 Value ($000) $6,718 Avg Close $52.06 Range $48.49 - $56.12

Q4 2024

Shares 102,144 Value ($000) $5,461 Avg Close $51.38 Range $48.17 - $54.22

Q3 2024

Shares 103,208 Value ($000) $5,906 Avg Close $49.89 Range $45.22 - $54.21

Q2 2024

Shares 106,722 Value ($000) $5,345 Avg Close $46.58 Range $43.68 - $48.79

Q1 2024

Shares 108,749 Value ($000) $5,539 Avg Close $44.40 Range $41.90 - $47.03

Q4 2023

Shares 113,001 Value ($000) $5,751 Avg Close $44.88 Range $41.24 - $48.79

Q3 2023

Shares 115,484 Value ($000) $5,550 Avg Close $47.33 Range $42.66 - $51.72

Q2 2023

Shares 117,992 Value ($000) $6,697 Avg Close $51.34 Range $48.87 - $53.67

Q1 2023

Shares 119,378 Value ($000) $6,907 Avg Close $49.59 Range $46.79 - $52.43

Q4 2022

Shares 122,638 Value ($000) $7,277 Avg Close $46.84 Range $41.72 - $52.07

Q3 2022

Shares 124,505 Value ($000) $6,136 Avg Close $46.61 Range $42.04 - $51.24

Q2 2022

Shares 124,048 Value ($000) $7,310 Avg Close $49.98 Range $45.98 - $52.83

Q1 2022

Shares 129,546 Value ($000) $7,836 Avg Close $48.63 Range $46.08 - $51.75

Q4 2021

Shares 127,801 Value ($000) $7,305 Avg Close $46.70 Range $43.99 - $49.52

Q3 2021

Shares 119,473 Value ($000) $6,846 Avg Close $50.51 Range $46.92 - $53.26

Q2 2021

Shares 119,252 Value ($000) $7,181 Avg Close $52.44 Range $48.13 - $56.92

Q1 2021

Shares 121,196 Value ($000) $7,902 Avg Close $47.20 Range $42.31 - $53.28

Q4 2020

Shares 111,281 Value ($000) $6,489 Avg Close $43.87 Range $37.97 - $49.46

Q3 2020

Shares 111,910 Value ($000) $5,443 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 113,746 Value ($000) $6,201 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 113,999 Value ($000) $6,821 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 129,535 Value ($000) $9,284 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 127,362 Value ($000) $9,559 Avg Close $54.27 Range $50.60 - $58.08

Q2 2019

Shares 123,604 Value ($000) $8,918 Avg Close $53.01 Range $50.21 - $55.53

Q1 2019

Shares 124,789 Value ($000) $8,786 Avg Close $48.59 Range $42.38 - $53.49

Q4 2018

Shares 113,283 Value ($000) $6,734 Avg Close $45.03 Range $41.21 - $48.18

Q3 2018

Shares 115,187 Value ($000) $6,757 Avg Close $43.15 Range $40.65 - $45.13

Q2 2018

Shares 112,176 Value ($000) $6,422 Avg Close $39.06 Range $37.03 - $41.93

Q1 2018

Shares 110,899 Value ($000) $5,966 Avg Close $37.69 Range $35.55 - $42.53

Q4 2017

Shares 110,367 Value ($000) $6,589 Avg Close $42.54 Range $39.78 - $45.45

Q3 2017

Shares 107,136 Value ($000) $6,100 Avg Close $41.74 Range $40.09 - $43.18

Q2 2017

Shares 101,997 Value ($000) $6,224 Avg Close $42.35 Range $40.29 - $44.62

Q1 2017

Shares 102,253 Value ($000) $6,002 Avg Close $39.52 Range $38.19 - $41.05

Q4 2016

Shares 100,477 Value ($000) $5,714 Avg Close $38.33 Range $36.64 - $40.23

Q3 2016

Shares 100,774 Value ($000) $5,798 Avg Close $40.31 Range $38.22 - $43.00

Q2 2016

Shares 63,612 Value ($000) $4,012 Avg Close $39.68 Range $37.02 - $42.70

Q1 2016

Shares 61,914 Value ($000) $3,823 Avg Close $38.33 Range $34.60 - $41.62

Q4 2015

Shares 61,958 Value ($000) $3,361 Avg Close $35.84 Range $33.71 - $37.52

Q3 2015

Shares 56,701 Value ($000) $3,052 Avg Close $34.01 Range $31.66 - $36.90

Q2 2015

Shares 115,136 Value ($000) $5,613 Avg Close $33.40 Range $31.54 - $35.25

Q1 2015

Shares 115,136 Value ($000) $6,193 Avg Close $35.30 Range $32.73 - $38.16

Q4 2014

Shares 114,341 Value ($000) $6,469 Avg Close $33.16 Range $28.63 - $37.51

Q3 2014

Shares 111,200 Value ($000) $5,044 Avg Close $30.29 Range $28.46 - $33.15

Q2 2014

Shares 94,613 Value ($000) $4,938 Avg Close $30.04 Range $28.38 - $33.02

Q1 2014

Shares 80,346 Value ($000) $3,811 Avg Close $27.98 Range $26.36 - $29.86

Q4 2013

Shares 80,346 Value ($000) $3,481 Avg Close $27.40 Range $25.54 - $28.91

Q3 2013

Shares 54,180 Value ($000) $2,434 Avg Close $25.46 Range $23.73 - $28.10

Q2 2013

Shares 52,811 Value ($000) $2,107 Avg Close $24.78 Range $23.14 - $25.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	122,803	$7,926	$62.82	$56.07 - $68.56
Q3 2025	130,287	$7,636	$54.14	$49.85 - $58.24
Q2 2025	137,020	$7,029	$53.53	$49.39 - $57.89
Q1 2025	116,089	$6,718	$52.06	$48.49 - $56.12
Q4 2024	102,144	$5,461	$51.38	$48.17 - $54.22
Q3 2024	103,208	$5,906	$49.89	$45.22 - $54.21
Q2 2024	106,722	$5,345	$46.58	$43.68 - $48.79
Q1 2024	108,749	$5,539	$44.40	$41.90 - $47.03
Q4 2023	113,001	$5,751	$44.88	$41.24 - $48.79
Q3 2023	115,484	$5,550	$47.33	$42.66 - $51.72
Q2 2023	117,992	$6,697	$51.34	$48.87 - $53.67
Q1 2023	119,378	$6,907	$49.59	$46.79 - $52.43
Q4 2022	122,638	$7,277	$46.84	$41.72 - $52.07
Q3 2022	124,505	$6,136	$46.61	$42.04 - $51.24
Q2 2022	124,048	$7,310	$49.98	$45.98 - $52.83
Q1 2022	129,546	$7,836	$48.63	$46.08 - $51.75
Q4 2021	127,801	$7,305	$46.70	$43.99 - $49.52
Q3 2021	119,473	$6,846	$50.51	$46.92 - $53.26
Q2 2021	119,252	$7,181	$52.44	$48.13 - $56.92
Q1 2021	121,196	$7,902	$47.20	$42.31 - $53.28
Q4 2020	111,281	$6,489	$43.87	$37.97 - $49.46
Q3 2020	111,910	$5,443	$41.40	$37.35 - $45.52
Q2 2020	113,746	$6,201	$44.67	$39.68 - $50.33
Q1 2020	113,999	$6,821	$54.52	$34.68 - $61.46
Q4 2019	129,535	$9,284	$54.65	$51.50 - $57.67
Q3 2019	127,362	$9,559	$54.27	$50.60 - $58.08
Q2 2019	123,604	$8,918	$53.01	$50.21 - $55.53
Q1 2019	124,789	$8,786	$48.59	$42.38 - $53.49
Q4 2018	113,283	$6,734	$45.03	$41.21 - $48.18
Q3 2018	115,187	$6,757	$43.15	$40.65 - $45.13
Q2 2018	112,176	$6,422	$39.06	$37.03 - $41.93
Q1 2018	110,899	$5,966	$37.69	$35.55 - $42.53
Q4 2017	110,367	$6,589	$42.54	$39.78 - $45.45
Q3 2017	107,136	$6,100	$41.74	$40.09 - $43.18
Q2 2017	101,997	$6,224	$42.35	$40.29 - $44.62
Q1 2017	102,253	$6,002	$39.52	$38.19 - $41.05
Q4 2016	100,477	$5,714	$38.33	$36.64 - $40.23
Q3 2016	100,774	$5,798	$40.31	$38.22 - $43.00
Q2 2016	63,612	$4,012	$39.68	$37.02 - $42.70
Q1 2016	61,914	$3,823	$38.33	$34.60 - $41.62
Q4 2015	61,958	$3,361	$35.84	$33.71 - $37.52
Q3 2015	56,701	$3,052	$34.01	$31.66 - $36.90
Q2 2015	115,136	$5,613	$33.40	$31.54 - $35.25
Q1 2015	115,136	$6,193	$35.30	$32.73 - $38.16
Q4 2014	114,341	$6,469	$33.16	$28.63 - $37.51
Q3 2014	111,200	$5,044	$30.29	$28.46 - $33.15
Q2 2014	94,613	$4,938	$30.04	$28.38 - $33.02
Q1 2014	80,346	$3,811	$27.98	$26.36 - $29.86
Q4 2013	80,346	$3,481	$27.40	$25.54 - $28.91
Q3 2013	54,180	$2,434	$25.46	$23.73 - $28.10
Q2 2013	52,811	$2,107	$24.78	$23.14 - $25.97