NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q4 2025

Shares 132,400 Value ($000) $8,545 Avg Close $62.82 Range $56.07 - $68.56

Q3 2023

Shares 12,000 Value ($000) $577 Avg Close $47.33 Range $42.66 - $51.72

Q2 2023

Shares 19,000 Value ($000) $1,078 Avg Close $51.34 Range $48.87 - $53.67

Q1 2023

Shares 19,000 Value ($000) $1,099 Avg Close $49.59 Range $46.79 - $52.43

Q4 2022

Shares 19,000 Value ($000) $1,127 Avg Close $46.84 Range $41.72 - $52.07

Q3 2022

Shares 30,000 Value ($000) $1,478 Avg Close $46.61 Range $42.04 - $51.24

Q2 2022

Shares 22,500 Value ($000) $1,326 Avg Close $49.98 Range $45.98 - $52.83

Q1 2022

Shares 46,500 Value ($000) $2,813 Avg Close $48.63 Range $46.08 - $51.75

Q3 2021

Shares 26,000 Value ($000) $1,490 Avg Close $50.51 Range $46.92 - $53.26

Q2 2020

Shares 73,778 Value ($000) $4,022 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 96,900 Value ($000) $5,798 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 29,978 Value ($000) $2,149 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 26,565 Value ($000) $1,994 Avg Close $54.27 Range $50.60 - $58.08

Q2 2019

Shares 208,200 Value ($000) $15,022 Avg Close $53.01 Range $50.21 - $55.53

Q1 2019

Shares 729,900 Value ($000) $51,392 Avg Close $48.59 Range $42.38 - $53.49

Q4 2018

Shares 712,500 Value ($000) $42,347 Avg Close $45.03 Range $41.21 - $48.18

Q3 2018

Shares 718,900 Value ($000) $42,171 Avg Close $43.15 Range $40.65 - $45.13

Q2 2018

Shares 715,800 Value ($000) $40,980 Avg Close $39.06 Range $37.03 - $41.93

Q1 2018

Shares 356,000 Value ($000) $19,153 Avg Close $37.69 Range $35.55 - $42.53

Q2 2017

Shares 7,200 Value ($000) $439 Avg Close $42.35 Range $40.29 - $44.62

Q1 2017

Shares 92,000 Value ($000) $5,400 Avg Close $39.52 Range $38.19 - $41.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	132,400	$8,545	$62.82	$56.07 - $68.56
Q3 2023	12,000	$577	$47.33	$42.66 - $51.72
Q2 2023	19,000	$1,078	$51.34	$48.87 - $53.67
Q1 2023	19,000	$1,099	$49.59	$46.79 - $52.43
Q4 2022	19,000	$1,127	$46.84	$41.72 - $52.07
Q3 2022	30,000	$1,478	$46.61	$42.04 - $51.24
Q2 2022	22,500	$1,326	$49.98	$45.98 - $52.83
Q1 2022	46,500	$2,813	$48.63	$46.08 - $51.75
Q3 2021	26,000	$1,490	$50.51	$46.92 - $53.26
Q2 2020	73,778	$4,022	$44.67	$39.68 - $50.33
Q1 2020	96,900	$5,798	$54.52	$34.68 - $61.46
Q4 2019	29,978	$2,149	$54.65	$51.50 - $57.67
Q3 2019	26,565	$1,994	$54.27	$50.60 - $58.08
Q2 2019	208,200	$15,022	$53.01	$50.21 - $55.53
Q1 2019	729,900	$51,392	$48.59	$42.38 - $53.49
Q4 2018	712,500	$42,347	$45.03	$41.21 - $48.18
Q3 2018	718,900	$42,171	$43.15	$40.65 - $45.13
Q2 2018	715,800	$40,980	$39.06	$37.03 - $41.93
Q1 2018	356,000	$19,153	$37.69	$35.55 - $42.53
Q2 2017	7,200	$439	$42.35	$40.29 - $44.62
Q1 2017	92,000	$5,400	$39.52	$38.19 - $41.05