GRAN TIERRA ENERGY INC

CUSIP: 38500T101 Class: COM

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

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

Q4 2018
Shares 24,400 Value ($000) $53 Avg Close — Range —
Q3 2018
Shares 58,400 Value ($000) $223 Avg Close — Range —
Q2 2018
Shares 116,200 Value ($000) $401 Avg Close — Range —
Q1 2018
Shares 116,000 Value ($000) $324 Avg Close — Range —
Q4 2017
Shares 154,905 Value ($000) $418 Avg Close — Range —
Q3 2017
Shares 180,205 Value ($000) $411 Avg Close — Range —
Q2 2017
Shares 215,131 Value ($000) $482 Avg Close — Range —
Q1 2017
Shares 215,131 Value ($000) $568 Avg Close — Range —
Q4 2016
Shares 188,700 Value ($000) $570 Avg Close — Range —
Q3 2016
Shares 58,800 Value ($000) $177 Avg Close — Range —
Q2 2016
Shares 45,800 Value ($000) $155 Avg Close — Range —