NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

Aigen Investment Management, LP's Holding History (CIK: 0001741224)

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

Q4 2025

Shares 5,729 Value ($000) $370 Avg Close $62.82 Range $56.07 - $68.56

Q1 2025

Shares 4,883 Value ($000) $283 Avg Close $52.06 Range $48.49 - $56.12

Q1 2022

Shares 4,551 Value ($000) $275 Avg Close $48.63 Range $46.08 - $51.75

Q4 2021

Shares 6,663 Value ($000) $373 Avg Close $46.70 Range $43.99 - $49.52

Q3 2020

Shares 39,213 Value ($000) $1,907 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 15,045 Value ($000) $820 Avg Close $44.67 Range $39.68 - $50.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,729	$370	$62.82	$56.07 - $68.56
Q1 2025	4,883	$283	$52.06	$48.49 - $56.12
Q1 2022	4,551	$275	$48.63	$46.08 - $51.75
Q4 2021	6,663	$373	$46.70	$43.99 - $49.52
Q3 2020	39,213	$1,907	$41.40	$37.35 - $45.52
Q2 2020	15,045	$820	$44.67	$39.68 - $50.33