MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

KEYBANK NATIONAL ASSOCIATION/OH's Holding History (CIK: 0001089877)

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

Q1 2015
Shares 10,770 Value ($000) $128 Avg Close — Range —
Q4 2014
Shares 11,288 Value ($000) $128 Avg Close — Range —
Q3 2014
Shares 20,571 Value ($000) $181 Avg Close — Range —
Q2 2014
Shares 20,571 Value ($000) $150 Avg Close — Range —
Q1 2014
Shares 20,571 Value ($000) $104 Avg Close — Range —
Q4 2013
Shares 20,571 Value ($000) $110 Avg Close — Range —
Q3 2013
Shares 20,571 Value ($000) $78 Avg Close — Range —
Q2 2013
Shares 20,571 Value ($000) $139 Avg Close — Range —
Q1 2013
Shares 20,571 Value ($000) $125 Avg Close — Range —
Q4 2012
Shares 28,571 Value ($000) $174 Avg Close — Range —