ORION ENGINEERED CARBONS S A

Ticker: OEC CUSIP: L72967109 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q3 2018

Shares 83,252 Value ($000) $2,672 Avg Close $33.17 Range $30.20 - $36.55

Q2 2018

Shares 68,675 Value ($000) $2,119 Avg Close $29.09 Range $26.10 - $33.95

Q1 2018

Shares 40,043 Value ($000) $1,085 Avg Close $27.91 Range $25.40 - $30.25

Q1 2017

Shares 75,373 Value ($000) $1,545 Avg Close $20.55 Range $18.50 - $22.20

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	83,252	$2,672	$33.17	$30.20 - $36.55
Q2 2018	68,675	$2,119	$29.09	$26.10 - $33.95
Q1 2018	40,043	$1,085	$27.91	$25.40 - $30.25
Q1 2017	75,373	$1,545	$20.55	$18.50 - $22.20