GRAN TIERRA ENERGY INC

CUSIP: 38500T101 Class: COM

Grantham, Mayo, Van Otterloo & Co. LLC's Holding History (CIK: 0001352662)

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

Q4 2017
Shares 122,218 Value ($000) $330 Avg Close — Range —
Q3 2017
Shares 105,618 Value ($000) $241 Avg Close — Range —
Q2 2017
Shares 120,118 Value ($000) $269 Avg Close — Range —
Q1 2017
Shares 120,118 Value ($000) $317 Avg Close — Range —
Q4 2014
Shares 3,858,462 Value ($000) $14,858 Avg Close — Range —
Q3 2014
Shares 5,373,162 Value ($000) $29,761 Avg Close — Range —
Q2 2014
Shares 4,747,200 Value ($000) $38,641 Avg Close — Range —
Q1 2014
Shares 4,756,000 Value ($000) $35,764 Avg Close — Range —
Q4 2013
Shares 4,339,500 Value ($000) $31,653 Avg Close — Range —
Q3 2013
Shares 4,005,900 Value ($000) $28,488 Avg Close — Range —
Q2 2013
Shares 3,487,500 Value ($000) $21,224 Avg Close — Range —