OM GROUP INC

CUSIP: 670872100 Class: COM

SCHRODER INVESTMENT MANAGEMENT GROUP's Holding History (CIK: 0001086619)

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

Q4 2013
Shares 487,500 Value ($000) $17,749,875 Avg Close — Range —
Q3 2013
Shares 418,800 Value ($000) $14,147,064 Avg Close — Range —