ALKERMES INC

CUSIP: 01642T108 Class: COMMON STOCK

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

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

Q2 2011
Shares 12,000 Value ($000) $223 Avg Close — Range —
Q1 2011
Shares 17,200 Value ($000) $223 Avg Close — Range —
Q4 2010
Shares 17,200 Value ($000) $211 Avg Close — Range —