DOUGLAS DYNAMICS INC

Ticker: PLOW CUSIP: 25960R105 Class: Common Stock

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

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

Q1 2020

Shares 34,364 Value ($000) $1,220 Avg Close $46.87 Range $24.12 - $56.89

Q1 2017

Shares 77,299 Value ($000) $2,369 Avg Close $32.45 Range $28.55 - $35.90

Q4 2016

Shares 160,974 Value ($000) $5,417 Avg Close $31.78 Range $25.23 - $34.75

Q3 2016

Shares 33,385 Value ($000) $1,066 Avg Close $29.94 Range $24.05 - $32.80

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	34,364	$1,220	$46.87	$24.12 - $56.89
Q1 2017	77,299	$2,369	$32.45	$28.55 - $35.90
Q4 2016	160,974	$5,417	$31.78	$25.23 - $34.75
Q3 2016	33,385	$1,066	$29.94	$24.05 - $32.80