OPTIMER PHARMACEUTICALS INC

CUSIP: 68401H104 Class: CMN

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

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

Q2 2013
Shares 4,500 Value ($000) $65 Avg Close — Range —
Q1 2013
Shares 4,500 Value ($000) $41 Avg Close — Range —
Q4 2012
Shares 4,500 Value ($000) $41 Avg Close — Range —
Q3 2012
Shares 7,500 Value ($000) $106 Avg Close — Range —
Q2 2012
Shares 12,000 Value ($000) $186 Avg Close — Range —
Q1 2012
Shares 12,000 Value ($000) $167 Avg Close — Range —
Q2 2011
Shares 28,008 Value ($000) $333 Avg Close — Range —
Q1 2011
Shares 48,008 Value ($000) $568 Avg Close — Range —
Q4 2010
Shares 48,008 Value ($000) $543 Avg Close — Range —