MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

D.A. DAVIDSON & CO.'s Holding History (CIK: 0001080107)

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

Q2 2017
Shares 1,600 Value ($000) $1 Avg Close — Range —
Q1 2017
Shares 1,600 Value ($000) $4 Avg Close — Range —
Q4 2016
Shares 1,600 Value ($000) $6 Avg Close — Range —
Q3 2016
Shares 2,300 Value ($000) $14 Avg Close — Range —
Q2 2016
Shares 2,300 Value ($000) $12 Avg Close — Range —
Q1 2016
Shares 2,300 Value ($000) $19 Avg Close — Range —
Q4 2015
Shares 2,050 Value ($000) $16 Avg Close — Range —
Q3 2015
Shares 1,850 Value ($000) $15 Avg Close — Range —
Q2 2015
Shares 1,850 Value ($000) $22 Avg Close — Range —
Q1 2015
Shares 1,850 Value ($000) $21 Avg Close — Range —
Q4 2014
Shares 1,550 Value ($000) $17 Avg Close — Range —
Q3 2014
Shares 200 Value ($000) $1 Avg Close — Range —
Q2 2014
Shares 200 Value ($000) $1 Avg Close — Range —