OM GROUP INC

CUSIP: 670872100 Class: COM

ACADIAN ASSET MANAGEMENT LLC's Holding History (CIK: 0000916542)

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

Q1 2015
Shares 4,676 Value ($000) $140 Avg Close — Range —
Q4 2014
Shares 84,120 Value ($000) $2,507 Avg Close — Range —
Q3 2014
Shares 53,028 Value ($000) $1,376 Avg Close — Range —
Q4 2013
Shares 2,620 Value ($000) $95 Avg Close — Range —
Q3 2013
Shares 2,631 Value ($000) $89 Avg Close — Range —