NATIONAL RESH CORP

CUSIP: 637372301 Class: COMMON

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

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

Q3 2013
Shares 9,670 Value ($000) $289 Avg Close — Range —
Q2 2013
Shares 9,670 Value ($000) $338 Avg Close — Range —