MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328209 Class: Common Stock

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q3 2018
Shares 18,889 Value ($000) $101 Avg Close — Range —
Q2 2018
Shares 29,089 Value ($000) $143 Avg Close — Range —