MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328209 Class: Common Stock

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

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

Q2 2019
Shares 19,587 Value ($000) $119 Avg Close — Range —
Q1 2019
Shares 106,643 Value ($000) $741 Avg Close — Range —
Q4 2018
Shares 55,124 Value ($000) $213 Avg Close — Range —
Q3 2018
Shares 30,951 Value ($000) $165 Avg Close — Range —