ACME PACKET INC

CUSIP: 004764106 Class: COMMON STOCK

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q1 2011
Shares 28,700 Value ($000) $2,037 Avg Close — Range —
Q4 2010
Shares 17,500 Value ($000) $930 Avg Close — Range —