OM GROUP INC

CUSIP: 670872100 Class: COM

STEPHENS INC /AR/'s Holding History (CIK: 0000757657)

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

Q3 2014
Shares 10,300 Value ($000) $267 Avg Close — Range —
Q2 2014
Shares 10,300 Value ($000) $334 Avg Close — Range —
Q1 2014
Shares 17,945 Value ($000) $596 Avg Close — Range —
Q4 2013
Shares 17,250 Value ($000) $628 Avg Close — Range —