GRAN TIERRA ENERGY INC

CUSIP: 38500T101 Class: COM

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2018
Shares 275,756 Value ($000) $598 Avg Close — Range —
Q3 2018
Shares 956,145 Value ($000) $3,652 Avg Close — Range —
Q2 2018
Shares 1,409,929 Value ($000) $4,864 Avg Close — Range —
Q4 2016
Shares 283,946 Value ($000) $858 Avg Close — Range —
Q3 2016
Shares 328,046 Value ($000) $987 Avg Close — Range —
Q2 2016
Shares 1,059,883 Value ($000) $3,582 Avg Close — Range —
Q1 2016
Shares 1,340,601 Value ($000) $3,311 Avg Close — Range —
Q3 2014
Shares 502,627 Value ($000) $2,785 Avg Close — Range —
Q2 2014
Shares 542,707 Value ($000) $4,407 Avg Close — Range —
Q1 2014
Shares 693,828 Value ($000) $5,190 Avg Close — Range —
Q4 2013
Shares 176,809 Value ($000) $1,292 Avg Close — Range —
Q3 2013
Shares 350,934 Value ($000) $2,488 Avg Close — Range —
Q2 2013
Shares 312,236 Value ($000) $1,877 Avg Close — Range —