NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

MAIRS & POWER INC's Holding History (CIK: 0001070134)

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

Q4 2025

Shares 81,682 Value ($000) $5,272 Avg Close $62.82 Range $56.07 - $68.56

Q3 2025

Shares 89,037 Value ($000) $5,218 Avg Close $54.14 Range $49.85 - $58.24

Q2 2025

Shares 102,928 Value ($000) $5,280 Avg Close $53.53 Range $49.39 - $57.89

Q1 2025

Shares 123,885 Value ($000) $7,169 Avg Close $52.06 Range $48.49 - $56.12

Q4 2024

Shares 136,995 Value ($000) $7,324 Avg Close $51.38 Range $48.17 - $54.22

Q3 2024

Shares 137,075 Value ($000) $7,843 Avg Close $49.89 Range $45.22 - $54.21

Q2 2024

Shares 137,385 Value ($000) $6,880 Avg Close $46.58 Range $43.68 - $48.79

Q1 2024

Shares 137,280 Value ($000) $6,992 Avg Close $44.40 Range $41.90 - $47.03

Q4 2023

Shares 124,530 Value ($000) $6,337 Avg Close $44.88 Range $41.24 - $48.79

Q3 2023

Shares 127,140 Value ($000) $6,110 Avg Close $47.33 Range $42.66 - $51.72

Q2 2023

Shares 117,495 Value ($000) $6,669 Avg Close $51.34 Range $48.87 - $53.67

Q1 2023

Shares 111,120 Value ($000) $6,429 Avg Close $49.59 Range $46.79 - $52.43

Q4 2022

Shares 107,879 Value ($000) $6,402 Avg Close $46.84 Range $41.72 - $52.07

Q3 2022

Shares 121,858 Value ($000) $6,005 Avg Close $46.61 Range $42.04 - $51.24

Q2 2022

Shares 121,984 Value ($000) $7,189 Avg Close $49.98 Range $45.98 - $52.83

Q1 2022

Shares 122,047 Value ($000) $7,383 Avg Close $48.63 Range $46.08 - $51.75

Q4 2021

Shares 133,194 Value ($000) $7,613 Avg Close $46.70 Range $43.99 - $49.52

Q3 2021

Shares 141,133 Value ($000) $8,087 Avg Close $50.51 Range $46.92 - $53.26

Q2 2021

Shares 140,621 Value ($000) $8,468 Avg Close $52.44 Range $48.13 - $56.92

Q1 2021

Shares 138,725 Value ($000) $9,045 Avg Close $47.20 Range $42.31 - $53.28

Q4 2020

Shares 137,495 Value ($000) $8,017 Avg Close $43.87 Range $37.97 - $49.46

Q3 2020

Shares 132,710 Value ($000) $6,455 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 127,710 Value ($000) $6,963 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 60,120 Value ($000) $3,597 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 60,090 Value ($000) $4,307 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 47,990 Value ($000) $3,602 Avg Close $54.27 Range $50.60 - $58.08

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	81,682	$5,272	$62.82	$56.07 - $68.56
Q3 2025	89,037	$5,218	$54.14	$49.85 - $58.24
Q2 2025	102,928	$5,280	$53.53	$49.39 - $57.89
Q1 2025	123,885	$7,169	$52.06	$48.49 - $56.12
Q4 2024	136,995	$7,324	$51.38	$48.17 - $54.22
Q3 2024	137,075	$7,843	$49.89	$45.22 - $54.21
Q2 2024	137,385	$6,880	$46.58	$43.68 - $48.79
Q1 2024	137,280	$6,992	$44.40	$41.90 - $47.03
Q4 2023	124,530	$6,337	$44.88	$41.24 - $48.79
Q3 2023	127,140	$6,110	$47.33	$42.66 - $51.72
Q2 2023	117,495	$6,669	$51.34	$48.87 - $53.67
Q1 2023	111,120	$6,429	$49.59	$46.79 - $52.43
Q4 2022	107,879	$6,402	$46.84	$41.72 - $52.07
Q3 2022	121,858	$6,005	$46.61	$42.04 - $51.24
Q2 2022	121,984	$7,189	$49.98	$45.98 - $52.83
Q1 2022	122,047	$7,383	$48.63	$46.08 - $51.75
Q4 2021	133,194	$7,613	$46.70	$43.99 - $49.52
Q3 2021	141,133	$8,087	$50.51	$46.92 - $53.26
Q2 2021	140,621	$8,468	$52.44	$48.13 - $56.92
Q1 2021	138,725	$9,045	$47.20	$42.31 - $53.28
Q4 2020	137,495	$8,017	$43.87	$37.97 - $49.46
Q3 2020	132,710	$6,455	$41.40	$37.35 - $45.52
Q2 2020	127,710	$6,963	$44.67	$39.68 - $50.33
Q1 2020	60,120	$3,597	$54.52	$34.68 - $61.46
Q4 2019	60,090	$4,307	$54.65	$51.50 - $57.67
Q3 2019	47,990	$3,602	$54.27	$50.60 - $58.08