NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

VIRGINIA RETIREMENT SYSTEMS ET AL's Holding History (CIK: 0001005354)

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

Q1 2021

Shares 4,200 Value ($000) $274 Avg Close $47.20 Range $42.31 - $53.28

Q4 2020

Shares 7,200 Value ($000) $420 Avg Close $43.87 Range $37.97 - $49.46

Q3 2020

Shares 10,200 Value ($000) $496 Avg Close $41.40 Range $37.35 - $45.52

Q2 2020

Shares 14,200 Value ($000) $774 Avg Close $44.67 Range $39.68 - $50.33

Q1 2020

Shares 17,300 Value ($000) $1,035 Avg Close $54.52 Range $34.68 - $61.46

Q4 2019

Shares 17,800 Value ($000) $1,276 Avg Close $54.65 Range $51.50 - $57.67

Q3 2019

Shares 17,900 Value ($000) $1,343 Avg Close $54.27 Range $50.60 - $58.08

Q2 2019

Shares 17,900 Value ($000) $1,291 Avg Close $53.01 Range $50.21 - $55.53

Q2 2017

Shares 20,600 Value ($000) $1,257 Avg Close $42.35 Range $40.29 - $44.62

Q1 2015

Shares 12,800 Value ($000) $689 Avg Close $35.30 Range $32.73 - $38.16

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	4,200	$274	$47.20	$42.31 - $53.28
Q4 2020	7,200	$420	$43.87	$37.97 - $49.46
Q3 2020	10,200	$496	$41.40	$37.35 - $45.52
Q2 2020	14,200	$774	$44.67	$39.68 - $50.33
Q1 2020	17,300	$1,035	$54.52	$34.68 - $61.46
Q4 2019	17,800	$1,276	$54.65	$51.50 - $57.67
Q3 2019	17,900	$1,343	$54.27	$50.60 - $58.08
Q2 2019	17,900	$1,291	$53.01	$50.21 - $55.53
Q2 2017	20,600	$1,257	$42.35	$40.29 - $44.62
Q1 2015	12,800	$689	$35.30	$32.73 - $38.16