ORION ENGINEERED CARBONS S A

Ticker: OEC CUSIP: L72967109 Class: Common Stock

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

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

Q4 2018

Shares 10,684 Value ($000) $270 Avg Close $26.08 Range $23.12 - $33.36

Q3 2018

Shares 10,684 Value ($000) $342 Avg Close $33.17 Range $30.20 - $36.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	10,684	$270	$26.08	$23.12 - $33.36
Q3 2018	10,684	$342	$33.17	$30.20 - $36.55