MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

RENAISSANCE TECHNOLOGIES LLC's Holding History (CIK: 0001037389)

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

Q2 2016
Shares 744,813 Value ($000) $4,015 Avg Close — Range —
Q1 2016
Shares 636,613 Value ($000) $5,328 Avg Close — Range —
Q2 2015
Shares 17,113 Value ($000) $212 Avg Close — Range —
Q4 2014
Shares 255,413 Value ($000) $2,886 Avg Close — Range —
Q3 2014
Shares 321,213 Value ($000) $2,820 Avg Close — Range —
Q2 2014
Shares 569,413 Value ($000) $4,151 Avg Close — Range —