OM GROUP INC

CUSIP: 670872100 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q3 2015
Shares 367,647 Value ($000) $12,092 Avg Close — Range —
Q2 2015
Shares 367,647 Value ($000) $12,353 Avg Close — Range —