REX ENERGY CORPORATION

CUSIP: 761565100 Class: CMN

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q1 2016
Shares 343,256 Value ($000) $264 Avg Close — Range —
Q4 2015
Shares 319,168 Value ($000) $335 Avg Close — Range —
Q3 2015
Shares 300,978 Value ($000) $623 Avg Close — Range —
Q2 2015
Shares 303,040 Value ($000) $1,694 Avg Close — Range —
Q1 2015
Shares 308,196 Value ($000) $1,147 Avg Close — Range —
Q4 2014
Shares 308,717 Value ($000) $1,574 Avg Close — Range —
Q3 2014
Shares 10,462 Value ($000) $133 Avg Close — Range —
Q2 2014
Shares 10,462 Value ($000) $185 Avg Close — Range —
Q1 2014
Shares 13,801 Value ($000) $258 Avg Close — Range —
Q4 2013
Shares 13,932 Value ($000) $275 Avg Close — Range —
Q3 2013
Shares 13,932 Value ($000) $311 Avg Close — Range —
Q2 2013
Shares 14,846 Value ($000) $261 Avg Close — Range —