ZIOPHARM ONCOLOGY INC

CUSIP: 98973P101 Class: COMMON

BAKER BROS. ADVISORS LP's Holding History (CIK: 0001263508)

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

Q2 2015
Shares 189,259 Value ($000) $2,271 Avg Close — Range —
Q1 2015
Shares 189,259 Value ($000) $2,038 Avg Close — Range —
Q4 2014
Shares 193,640 Value ($000) $982 Avg Close — Range —
Q3 2014
Shares 244,619 Value ($000) $646 Avg Close — Range —
Q2 2014
Shares 244,619 Value ($000) $986 Avg Close — Range —
Q1 2014
Shares 244,619 Value ($000) $1,120 Avg Close — Range —
Q4 2013
Shares 254,199 Value ($000) $1,103 Avg Close — Range —
Q3 2013
Shares 254,199 Value ($000) $1,002 Avg Close — Range —
Q2 2013
Shares 254,199 Value ($000) $536 Avg Close — Range —