MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

JENNISON ASSOCIATES LLC's Holding History (CIK: 0000053417)

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

Q2 2014
Shares 4,837,582 Value ($000) $35,266 Avg Close — Range —
Q1 2014
Shares 5,839,260 Value ($000) $29,430 Avg Close — Range —
Q4 2013
Shares 6,536,656 Value ($000) $34,906 Avg Close — Range —
Q3 2013
Shares 5,451,374 Value ($000) $20,715 Avg Close — Range —
Q2 2013
Shares 3,140,392 Value ($000) $21,135 Avg Close — Range —