REX ENERGY CORPORATION

CUSIP: 761565100 Class: CMN

Board of Trustees of The Leland Stanford Junior University's Holding History (CIK: 0001315828)

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

Q1 2015
Shares 796,468 Value ($000) $2,963 Avg Close — Range —
Q4 2014
Shares 1,619,764 Value ($000) $8,261 Avg Close — Range —
Q3 2014
Shares 1,220,009 Value ($000) $15,458 Avg Close — Range —