MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

BARCLAYS PLC's Holding History (CIK: 0000312069)

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

Q2 2017
Shares 1,000 Value ($000) $1 Avg Close — Range —
Q1 2017
Shares 6,795 Value ($000) $21 Avg Close — Range —
Q4 2016
Shares 58,915 Value ($000) $241 Avg Close — Range —
Q3 2016
Shares 120,091 Value ($000) $762 Avg Close — Range —
Q1 2016
Shares 5,926 Value ($000) $47 Avg Close — Range —
Q4 2015
Shares 1,852 Value ($000) $13 Avg Close — Range —
Q3 2015
Shares 30,480 Value ($000) $244 Avg Close — Range —
Q2 2015
Shares 11,196 Value ($000) $134 Avg Close — Range —
Q1 2015
Shares 135,044 Value ($000) $1,485 Avg Close — Range —
Q4 2014
Shares 8,192 Value ($000) $89 Avg Close — Range —
Q3 2014
Shares 16,099 Value ($000) $129 Avg Close — Range —
Q2 2014
Shares 48,076 Value ($000) $336 Avg Close — Range —
Q1 2014
Shares 48,988 Value ($000) $246 Avg Close — Range —
Q4 2013
Shares 55,496 Value ($000) $278 Avg Close — Range —
Q3 2013
Shares 5,611 Value ($000) $17 Avg Close — Range —
Q2 2013
Shares 6,105 Value ($000) $41 Avg Close — Range —