OM GROUP INC

CUSIP: 670872100 Class: COM

PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO's Holding History (CIK: 0000315297)

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

Q3 2015
Shares 9,498 Value ($000) $312 Avg Close — Range —
Q2 2015
Shares 9,498 Value ($000) $319 Avg Close — Range —
Q1 2015
Shares 9,498 Value ($000) $285 Avg Close — Range —
Q4 2014
Shares 9,498 Value ($000) $283 Avg Close — Range —
Q3 2014
Shares 9,498 Value ($000) $246 Avg Close — Range —
Q2 2014
Shares 9,498 Value ($000) $308 Avg Close — Range —
Q1 2014
Shares 9,498 Value ($000) $316 Avg Close — Range —
Q4 2013
Shares 9,498 Value ($000) $346 Avg Close — Range —
Q3 2013
Shares 9,498 Value ($000) $321 Avg Close — Range —
Q2 2013
Shares 9,498 Value ($000) $294 Avg Close — Range —