MISSION WEST PROPERTIES

CUSIP: 605203108 Class: COMMON STOCK

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

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

Q4 2012
Shares 45,500 Value ($000) $415 Avg Close — Range —
Q3 2012
Shares 45,500 Value ($000) $396 Avg Close — Range —
Q2 2012
Shares 62,700 Value ($000) $540 Avg Close — Range —
Q1 2012
Shares 62,700 Value ($000) $618 Avg Close — Range —
Q4 2011
Shares 81,600 Value ($000) $736 Avg Close — Range —
Q3 2011
Shares 81,600 Value ($000) $619 Avg Close — Range —
Q4 2010
Shares 62,200 Value ($000) $416 Avg Close — Range —