OM GROUP INC

CUSIP: 670872100 Class: COM

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q3 2015
Shares 52,226 Value ($000) $1,718 Avg Close — Range —
Q2 2015
Shares 50,516 Value ($000) $1,697 Avg Close — Range —
Q1 2015
Shares 55,351 Value ($000) $1,662 Avg Close — Range —
Q4 2014
Shares 54,501 Value ($000) $1,624 Avg Close — Range —
Q3 2014
Shares 53,126 Value ($000) $1,379 Avg Close — Range —
Q2 2014
Shares 52,476 Value ($000) $1,702 Avg Close — Range —
Q1 2014
Shares 53,476 Value ($000) $1,776 Avg Close — Range —
Q4 2013
Shares 54,926 Value ($000) $2,000 Avg Close — Range —
Q3 2013
Shares 57,626 Value ($000) $1,947 Avg Close — Range —
Q2 2013
Shares 58,162 Value ($000) $1,798 Avg Close — Range —