MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

Private Advisor Group, LLC's Holding History (CIK: 0001567755)

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

Q2 2017
Shares 68,918 Value ($000) $99 Avg Close — Range —
Q1 2017
Shares 72,568 Value ($000) $227 Avg Close — Range —
Q4 2016
Shares 73,156 Value ($000) $241 Avg Close — Range —
Q3 2016
Shares 91,802 Value ($000) $547 Avg Close — Range —
Q2 2016
Shares 84,652 Value ($000) $483 Avg Close — Range —
Q1 2016
Shares 97,152 Value ($000) $813 Avg Close — Range —
Q4 2015
Shares 83,102 Value ($000) $657 Avg Close — Range —
Q3 2015
Shares 69,513 Value ($000) $592 Avg Close — Range —
Q2 2015
Shares 66,240 Value ($000) $819 Avg Close — Range —
Q1 2015
Shares 57,750 Value ($000) $686 Avg Close — Range —