MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

THOMPSON DAVIS & CO., INC.'s Holding History (CIK: 0001017284)

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

Q2 2015
Shares 10,000 Value ($000) $124 Avg Close — Range —
Q1 2015
Shares 10,000 Value ($000) $119 Avg Close — Range —
Q4 2014
Shares 10,000 Value ($000) $113 Avg Close — Range —
Q3 2014
Shares 5,000 Value ($000) $44 Avg Close — Range —