OYO GEOSPACE CORP

CUSIP: 671074102 Class: COM

MUFG Americas Holdings Corp's Holding History (CIK: 0001011659)

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

Q3 2012
Shares 1,800 Value ($000) $220 Avg Close — Range —
Q2 2012
Shares 1,800 Value ($000) $162 Avg Close — Range —
Q1 2012
Shares 1,800 Value ($000) $190 Avg Close — Range —
Q4 2011
Shares 1,900 Value ($000) $147 Avg Close — Range —
Q3 2011
Shares 1,900 Value ($000) $107 Avg Close — Range —
Q2 2011
Shares 2,700 Value ($000) $270 Avg Close — Range —
Q1 2011
Shares 2,700 Value ($000) $266 Avg Close — Range —
Q4 2010
Shares 4,200 Value ($000) $416 Avg Close — Range —