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CUSIP: 629491101 Class: COM

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

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

Q3 2013
Shares 49,628 Value ($000) $2,083 Avg Close — Range —
Q2 2013
Shares 49,480 Value ($000) $2,048 Avg Close — Range —