MITCHAM INDS INC

CUSIP: 606501104 Class: COM

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q1 2015
Shares 549,645 Value ($000) $2,528 Avg Close — Range —
Q4 2014
Shares 857,799 Value ($000) $5,087 Avg Close — Range —
Q3 2014
Shares 1,025,940 Value ($000) $11,337 Avg Close — Range —
Q2 2014
Shares 680,337 Value ($000) $9,511 Avg Close — Range —