OM GROUP INC

CUSIP: 670872100 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q2 2015
Shares 200,000 Value ($000) $6,720 Avg Close — Range —
Q1 2015
Shares 200,000 Value ($000) $6,006 Avg Close — Range —