REX ENERGY CORPORATION

CUSIP: 761565100 Class: CMN

Sterling Capital Management LLC's Holding History (CIK: 0001329883)

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

Q2 2013
Shares 620,860 Value ($000) $10,915 Avg Close — Range —
Q1 2013
Shares 1,916,650 Value ($000) $31,606 Avg Close — Range —