DOUGLAS DYNAMICS INC

Ticker: PLOW CUSIP: 25960R105 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q4 2025

Shares 134 Value ($000) $4 Avg Close $31.63 Range $28.52 - $34.41

Q3 2025

Shares 134 Value ($000) $4 Avg Close $31.30 Range $27.62 - $34.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	134	$4	$31.63	$28.52 - $34.41
Q3 2025	134	$4	$31.30	$27.62 - $34.25