MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q2 2017
Shares 9,526 Value ($000) $12 Avg Close — Range —
Q1 2017
Shares 9,526 Value ($000) $29 Avg Close — Range —
Q4 2016
Shares 9,526 Value ($000) $39 Avg Close — Range —
Q3 2016
Shares 9,526 Value ($000) $60 Avg Close — Range —
Q2 2016
Shares 9,526 Value ($000) $51 Avg Close — Range —
Q1 2016
Shares 9,526 Value ($000) $80 Avg Close — Range —
Q4 2015
Shares 9,526 Value ($000) $75 Avg Close — Range —
Q3 2015
Shares 9,526 Value ($000) $81 Avg Close — Range —
Q2 2015
Shares 10,386 Value ($000) $129 Avg Close — Range —
Q1 2015
Shares 9,526 Value ($000) $113 Avg Close — Range —
Q4 2014
Shares 3,800 Value ($000) $43 Avg Close — Range —
Q3 2014
Shares 3,800 Value ($000) $33 Avg Close — Range —
Q2 2014
Shares 3,800 Value ($000) $28 Avg Close — Range —
Q1 2014
Shares 3,800 Value ($000) $19 Avg Close — Range —
Q4 2013
Shares 3,800 Value ($000) $20 Avg Close — Range —