GRAN TIERRA ENERGY INC

CUSIP: 38500T101 Class: COM

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2014
Shares 953,232 Value ($000) $3,659 Avg Close — Range —
Q3 2014
Shares 612,276 Value ($000) $3,384 Avg Close — Range —
Q2 2014
Shares 297,468 Value ($000) $2,417 Avg Close — Range —