REX ENERGY CORPORATION

CUSIP: 761565100 Class: CMN

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2014
Shares 466,592 Value ($000) $5,911 Avg Close — Range —
Q2 2014
Shares 520,222 Value ($000) $9,213 Avg Close — Range —
Q1 2014
Shares 584,992 Value ($000) $10,946 Avg Close — Range —
Q4 2013
Shares 2,048,505 Value ($000) $40,376 Avg Close — Range —
Q3 2013
Shares 4,040,061 Value ($000) $90,094 Avg Close — Range —
Q2 2013
Shares 4,433,115 Value ($000) $77,934 Avg Close — Range —