NORTHWEST NAT HLDG CO

Ticker: NWN CUSIP: 66765N105 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q3 2020

Shares 2,234 Value ($000) $101 Avg Close $51.04 Range $43.34 - $56.58

Q2 2020

Shares 148,485 Value ($000) $8,285 Avg Close $61.09 Range $52.39 - $67.24

Q1 2020

Shares 150,645 Value ($000) $9,302 Avg Close $69.90 Range $50.50 - $77.26

Q4 2019

Shares 170,884 Value ($000) $12,600 Avg Close $69.05 Range $62.87 - $74.13

Q3 2019

Shares 203,665 Value ($000) $14,530 Avg Close $70.88 Range $68.42 - $73.50

Q2 2019

Shares 203,665 Value ($000) $14,155 Avg Close $67.64 Range $63.48 - $70.22

Q1 2019

Shares 228,006 Value ($000) $14,963 Avg Close $62.69 Range $57.20 - $66.97

Q4 2018

Shares 231,478 Value ($000) $13,994 Avg Close $66.85 Range $57.94 - $71.81

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	2,234	$101	$51.04	$43.34 - $56.58
Q2 2020	148,485	$8,285	$61.09	$52.39 - $67.24
Q1 2020	150,645	$9,302	$69.90	$50.50 - $77.26
Q4 2019	170,884	$12,600	$69.05	$62.87 - $74.13
Q3 2019	203,665	$14,530	$70.88	$68.42 - $73.50
Q2 2019	203,665	$14,155	$67.64	$63.48 - $70.22
Q1 2019	228,006	$14,963	$62.69	$57.20 - $66.97
Q4 2018	231,478	$13,994	$66.85	$57.94 - $71.81