ORION ENGINEERED CARBONS S A

Ticker: OEC CUSIP: L72967109 Class: Common Stock

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q4 2017

Shares 150,000 Value ($000) $3,840 Avg Close $23.63 Range $22.25 - $25.70

Q1 2017

Shares 200,000 Value ($000) $4,100 Avg Close $20.55 Range $18.50 - $22.20

Q3 2015

Shares 16,700 Value ($000) $241 Avg Close $17.19 Range $13.47 - $19.68

Q4 2014

Shares 811,900 Value ($000) $13,794 Avg Close $16.03 Range $12.60 - $18.09

Q3 2014

Shares 987,169 Value ($000) $17,394 Avg Close $17.44 Range $15.87 - $18.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	150,000	$3,840	$23.63	$22.25 - $25.70
Q1 2017	200,000	$4,100	$20.55	$18.50 - $22.20
Q3 2015	16,700	$241	$17.19	$13.47 - $19.68
Q4 2014	811,900	$13,794	$16.03	$12.60 - $18.09
Q3 2014	987,169	$17,394	$17.44	$15.87 - $18.40