MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328209 Class: Common Stock

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q1 2019
Shares 10,100 Value ($000) $70 Avg Close — Range —
Q4 2018
Shares 48,909 Value ($000) $188 Avg Close — Range —
Q3 2018
Shares 70,489 Value ($000) $375 Avg Close — Range —
Q2 2018
Shares 60,848 Value ($000) $298 Avg Close — Range —
Q1 2018
Shares 58,700 Value ($000) $472 Avg Close — Range —
Q4 2017
Shares 10,700 Value ($000) $109 Avg Close — Range —