MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

SUSQUEHANNA INTERNATIONAL GROUP, LLP's Holding History (CIK: 0001446194)

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

Q2 2017
Shares 70,545 Value ($000) $87 Avg Close — Range —
Q1 2017
Shares 33,389 Value ($000) $103 Avg Close — Range —
Q4 2016
Shares 416,917 Value ($000) $1,701 Avg Close — Range —
Q3 2016
Shares 161,469 Value ($000) $1,025 Avg Close — Range —
Q1 2016
Shares 62,569 Value ($000) $524 Avg Close — Range —
Q4 2015
Shares 42,478 Value ($000) $336 Avg Close — Range —
Q3 2015
Shares 131,755 Value ($000) $1,121 Avg Close — Range —
Q2 2015
Shares 52,523 Value ($000) $649 Avg Close — Range —
Q1 2015
Shares 68,280 Value ($000) $811 Avg Close — Range —
Q4 2014
Shares 172,979 Value ($000) $1,955 Avg Close — Range —
Q3 2014
Shares 93,502 Value ($000) $821 Avg Close — Range —
Q2 2014
Shares 162,667 Value ($000) $1,186 Avg Close — Range —
Q1 2014
Shares 263,127 Value ($000) $1,327 Avg Close — Range —
Q4 2013
Shares 817,340 Value ($000) $4,364 Avg Close — Range —
Q3 2013
Shares 109,468 Value ($000) $416 Avg Close — Range —