NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO's Holding History (CIK: 0001007280)

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

Q4 2025

Shares 29,695 Value ($000) $1,917 Avg Close $62.82 Range $56.07 - $68.56

Q3 2025

Shares 35,771 Value ($000) $2,097 Avg Close $54.14 Range $49.85 - $58.24

Q2 2025

Shares 38,886 Value ($000) $1,995 Avg Close $53.53 Range $49.39 - $57.89

Q1 2025

Shares 34,956 Value ($000) $2,023 Avg Close $52.06 Range $48.49 - $56.12

Q4 2024

Shares 50,862 Value ($000) $2,719 Avg Close $51.38 Range $48.17 - $54.22

Q3 2024

Shares 62,580 Value ($000) $3,581 Avg Close $49.89 Range $45.22 - $54.21

Q2 2024

Shares 67,749 Value ($000) $3,393 Avg Close $46.58 Range $43.68 - $48.79

Q1 2024

Shares 72,573 Value ($000) $3,696 Avg Close $44.40 Range $41.90 - $47.03

Q4 2023

Shares 78,136 Value ($000) $3,976 Avg Close $44.88 Range $41.24 - $48.79

Q3 2023

Shares 72,284 Value ($000) $3,474 Avg Close $47.33 Range $42.66 - $51.72

Q2 2023

Shares 62,329 Value ($000) $3,538 Avg Close $51.34 Range $48.87 - $53.67

Q1 2023

Shares 62,186 Value ($000) $3,598 Avg Close $49.59 Range $46.79 - $52.43

Q4 2022

Shares 61,793 Value ($000) $3,667 Avg Close $46.84 Range $41.72 - $52.07

Q3 2022

Shares 78,393 Value ($000) $3,863 Avg Close $46.61 Range $42.04 - $51.24

Q2 2022

Shares 64,297 Value ($000) $3,789 Avg Close $49.98 Range $45.98 - $52.83

Q1 2022

Shares 75,479 Value ($000) $4,566 Avg Close $48.63 Range $46.08 - $51.75

Q4 2021

Shares 84,314 Value ($000) $4,819 Avg Close $46.70 Range $43.99 - $49.52

Q3 2021

Shares 70,458 Value ($000) $4,037 Avg Close $50.51 Range $46.92 - $53.26

Q2 2021

Shares 71,814 Value ($000) $4,325 Avg Close $52.44 Range $48.13 - $56.92

Q1 2021

Shares 66,403 Value ($000) $4,329 Avg Close $47.20 Range $42.31 - $53.28

Q4 2020

Shares 63,590 Value ($000) $3,708 Avg Close $43.87 Range $37.97 - $49.46

Q3 2020

Shares 62,081 Value ($000) $3,020 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 52,278 Value ($000) $2,850 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 45,396 Value ($000) $2,716 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 45,134 Value ($000) $3,235 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 71,352 Value ($000) $5,355 Avg Close $54.27 Range $50.60 - $58.08

Q2 2019

Shares 75,429 Value ($000) $5,442 Avg Close $53.01 Range $50.21 - $55.53

Q1 2019

Shares 71,119 Value ($000) $5,007 Avg Close $48.59 Range $42.38 - $53.49

Q4 2018

Shares 36,499 Value ($000) $2,170 Avg Close $45.03 Range $41.21 - $48.18

Q3 2018

Shares 49,405 Value ($000) $2,898 Avg Close $43.15 Range $40.65 - $45.13

Q2 2018

Shares 49,293 Value ($000) $2,822 Avg Close $39.06 Range $37.03 - $41.93

Q1 2018

Shares 57,638 Value ($000) $3,101 Avg Close $37.69 Range $35.55 - $42.53

Q4 2017

Shares 52,309 Value ($000) $3,123 Avg Close $42.54 Range $39.78 - $45.45

Q3 2017

Shares 56,939 Value ($000) $3,242 Avg Close $41.74 Range $40.09 - $43.18

Q2 2017

Shares 48,196 Value ($000) $2,941 Avg Close $42.35 Range $40.29 - $44.62

Q1 2017

Shares 35,812 Value ($000) $2,102 Avg Close $39.52 Range $38.19 - $41.05

Q4 2016

Shares 11,738 Value ($000) $675 Avg Close $38.33 Range $36.64 - $40.23

Q3 2016

Shares 2,502 Value ($000) $144 Avg Close $40.31 Range $38.22 - $43.00

Q2 2016

Shares 2,599 Value ($000) $164 Avg Close $39.68 Range $37.02 - $42.70

Q1 2016

Shares 2,541 Value ($000) $157 Avg Close $38.33 Range $34.60 - $41.62

Q4 2015

Shares 2,803 Value ($000) $152 Avg Close $35.84 Range $33.71 - $37.52

Q3 2015

Shares 3,604 Value ($000) $194 Avg Close $34.01 Range $31.66 - $36.90

Q2 2015

Shares 3,750 Value ($000) $183 Avg Close $33.40 Range $31.54 - $35.25

Q1 2015

Shares 3,663 Value ($000) $197 Avg Close $35.30 Range $32.73 - $38.16

Q4 2014

Shares 3,652 Value ($000) $207 Avg Close $33.16 Range $28.63 - $37.51

Q3 2014

Shares 3,757 Value ($000) $170 Avg Close $30.29 Range $28.46 - $33.15

Q2 2014

Shares 4,966 Value ($000) $259 Avg Close $30.04 Range $28.38 - $33.02

Q1 2014

Shares 4,631 Value ($000) $220 Avg Close $27.98 Range $26.36 - $29.86

Q4 2013

Shares 5,696 Value ($000) $247 Avg Close $27.40 Range $25.54 - $28.91

Q3 2013

Shares 2,846 Value ($000) $128 Avg Close $25.46 Range $23.73 - $28.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29,695	$1,917	$62.82	$56.07 - $68.56
Q3 2025	35,771	$2,097	$54.14	$49.85 - $58.24
Q2 2025	38,886	$1,995	$53.53	$49.39 - $57.89
Q1 2025	34,956	$2,023	$52.06	$48.49 - $56.12
Q4 2024	50,862	$2,719	$51.38	$48.17 - $54.22
Q3 2024	62,580	$3,581	$49.89	$45.22 - $54.21
Q2 2024	67,749	$3,393	$46.58	$43.68 - $48.79
Q1 2024	72,573	$3,696	$44.40	$41.90 - $47.03
Q4 2023	78,136	$3,976	$44.88	$41.24 - $48.79
Q3 2023	72,284	$3,474	$47.33	$42.66 - $51.72
Q2 2023	62,329	$3,538	$51.34	$48.87 - $53.67
Q1 2023	62,186	$3,598	$49.59	$46.79 - $52.43
Q4 2022	61,793	$3,667	$46.84	$41.72 - $52.07
Q3 2022	78,393	$3,863	$46.61	$42.04 - $51.24
Q2 2022	64,297	$3,789	$49.98	$45.98 - $52.83
Q1 2022	75,479	$4,566	$48.63	$46.08 - $51.75
Q4 2021	84,314	$4,819	$46.70	$43.99 - $49.52
Q3 2021	70,458	$4,037	$50.51	$46.92 - $53.26
Q2 2021	71,814	$4,325	$52.44	$48.13 - $56.92
Q1 2021	66,403	$4,329	$47.20	$42.31 - $53.28
Q4 2020	63,590	$3,708	$43.87	$37.97 - $49.46
Q3 2020	62,081	$3,020	$41.40	$37.35 - $45.52
Q2 2020	52,278	$2,850	$44.67	$39.68 - $50.33
Q1 2020	45,396	$2,716	$54.52	$34.68 - $61.46
Q4 2019	45,134	$3,235	$54.65	$51.50 - $57.67
Q3 2019	71,352	$5,355	$54.27	$50.60 - $58.08
Q2 2019	75,429	$5,442	$53.01	$50.21 - $55.53
Q1 2019	71,119	$5,007	$48.59	$42.38 - $53.49
Q4 2018	36,499	$2,170	$45.03	$41.21 - $48.18
Q3 2018	49,405	$2,898	$43.15	$40.65 - $45.13
Q2 2018	49,293	$2,822	$39.06	$37.03 - $41.93
Q1 2018	57,638	$3,101	$37.69	$35.55 - $42.53
Q4 2017	52,309	$3,123	$42.54	$39.78 - $45.45
Q3 2017	56,939	$3,242	$41.74	$40.09 - $43.18
Q2 2017	48,196	$2,941	$42.35	$40.29 - $44.62
Q1 2017	35,812	$2,102	$39.52	$38.19 - $41.05
Q4 2016	11,738	$675	$38.33	$36.64 - $40.23
Q3 2016	2,502	$144	$40.31	$38.22 - $43.00
Q2 2016	2,599	$164	$39.68	$37.02 - $42.70
Q1 2016	2,541	$157	$38.33	$34.60 - $41.62
Q4 2015	2,803	$152	$35.84	$33.71 - $37.52
Q3 2015	3,604	$194	$34.01	$31.66 - $36.90
Q2 2015	3,750	$183	$33.40	$31.54 - $35.25
Q1 2015	3,663	$197	$35.30	$32.73 - $38.16
Q4 2014	3,652	$207	$33.16	$28.63 - $37.51
Q3 2014	3,757	$170	$30.29	$28.46 - $33.15
Q2 2014	4,966	$259	$30.04	$28.38 - $33.02
Q1 2014	4,631	$220	$27.98	$26.36 - $29.86
Q4 2013	5,696	$247	$27.40	$25.54 - $28.91
Q3 2013	2,846	$128	$25.46	$23.73 - $28.10