MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

SG Americas Securities, LLC's Holding History (CIK: 0001313360)

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

Q2 2017
Shares 76,217 Value ($000) $95 Avg Close — Range —
Q1 2017
Shares 26,473 Value ($000) $82 Avg Close — Range —
Q4 2016
Shares 63,191 Value ($000) $258 Avg Close — Range —
Q3 2016
Shares 19,938 Value ($000) $127 Avg Close — Range —
Q2 2015
Shares 10,248 Value ($000) $127 Avg Close — Range —
Q1 2015
Shares 17,040 Value ($000) $202 Avg Close — Range —
Q4 2014
Shares 14,241 Value ($000) $161 Avg Close — Range —
Q1 2014
Shares 13,326 Value ($000) $67 Avg Close — Range —
Q3 2013
Shares 18,331 Value ($000) $70 Avg Close — Range —