MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q1 2016
Shares 13,554 Value ($000) $113 Avg Close — Range —
Q2 2015
Shares 251,065 Value ($000) $3,104 Avg Close — Range —
Q1 2015
Shares 156,973 Value ($000) $1,865 Avg Close — Range —
Q3 2014
Shares 74,852 Value ($000) $657 Avg Close — Range —
Q2 2014
Shares 49,352 Value ($000) $360 Avg Close — Range —