ZIOPHARM ONCOLOGY INC

CUSIP: 98973P101 Class: COMMON

VIRGINIA RETIREMENT SYSTEMS ET AL's Holding History (CIK: 0001005354)

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

Q3 2014
Shares 15,800 Value ($000) $42 Avg Close — Range —
Q2 2014
Shares 16,700 Value ($000) $67 Avg Close — Range —
Q1 2014
Shares 17,900 Value ($000) $82 Avg Close — Range —
Q4 2013
Shares 17,900 Value ($000) $78 Avg Close — Range —