MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q2 2017
Shares 59,053 Value ($000) $73 Avg Close — Range —
Q1 2017
Shares 299,100 Value ($000) $918 Avg Close — Range —
Q4 2016
Shares 306,600 Value ($000) $1,251 Avg Close — Range —
Q3 2016
Shares 309,100 Value ($000) $1,963 Avg Close — Range —
Q2 2016
Shares 286,850 Value ($000) $1,546 Avg Close — Range —
Q1 2016
Shares 304,350 Value ($000) $2,547 Avg Close — Range —
Q4 2015
Shares 307,100 Value ($000) $2,426 Avg Close — Range —
Q3 2015
Shares 311,100 Value ($000) $2,647 Avg Close — Range —
Q2 2015
Shares 361,850 Value ($000) $4,474 Avg Close — Range —
Q1 2015
Shares 345,500 Value ($000) $4,104 Avg Close — Range —
Q4 2014
Shares 384,750 Value ($000) $4,347 Avg Close — Range —
Q3 2014
Shares 423,700 Value ($000) $3,720 Avg Close — Range —
Q2 2014
Shares 422,300 Value ($000) $3,078 Avg Close — Range —
Q1 2014
Shares 379,575 Value ($000) $1,913 Avg Close — Range —
Q4 2013
Shares 278,100 Value ($000) $1,485 Avg Close — Range —