MITCHAM INDS INC

CUSIP: 606501104 Class: COM

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

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

Q4 2017
Shares 15,200 Value ($000) $48 Avg Close — Range —
Q3 2017
Shares 16,900 Value ($000) $59 Avg Close — Range —
Q2 2017
Shares 19,600 Value ($000) $76 Avg Close — Range —
Q1 2017
Shares 20,500 Value ($000) $100 Avg Close — Range —
Q4 2016
Shares 20,500 Value ($000) $85 Avg Close — Range —
Q3 2016
Shares 20,500 Value ($000) $68 Avg Close — Range —
Q2 2016
Shares 20,500 Value ($000) $77 Avg Close — Range —
Q4 2015
Shares 20,500 Value ($000) $62 Avg Close — Range —
Q3 2015
Shares 20,700 Value ($000) $78 Avg Close — Range —
Q2 2015
Shares 20,700 Value ($000) $87 Avg Close — Range —
Q1 2015
Shares 21,000 Value ($000) $97 Avg Close — Range —
Q4 2014
Shares 20,900 Value ($000) $124 Avg Close — Range —
Q3 2014
Shares 28,600 Value ($000) $316 Avg Close — Range —
Q2 2014
Shares 28,700 Value ($000) $401 Avg Close — Range —
Q1 2014
Shares 28,900 Value ($000) $403 Avg Close — Range —
Q4 2013
Shares 28,900 Value ($000) $512 Avg Close — Range —
Q3 2013
Shares 28,900 Value ($000) $442 Avg Close — Range —
Q2 2013
Shares 28,900 Value ($000) $485 Avg Close — Range —