OM GROUP INC

CUSIP: 670872100 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q3 2014
Shares 471 Value ($000) $12 Avg Close — Range —
Q2 2014
Shares 227 Value ($000) $7 Avg Close — Range —
Q2 2013
Shares 2,147 Value ($000) $66 Avg Close — Range —