VERTEX ENERGY INC

CUSIP: 92534K107 Class: Common Stock

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

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

Q1 2014
Shares 16,000 Value ($000) $103 Avg Close — Range —
Q4 2013
Shares 16,000 Value ($000) $54 Avg Close — Range —
Q2 2013
Shares 16,000 Value ($000) $48 Avg Close — Range —