MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328209 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q3 2022
Shares 8,692 Value ($000) $32 Avg Close — Range —
Q2 2022
Shares 36,468 Value ($000) $216 Avg Close — Range —
Q1 2022
Shares 37,819 Value ($000) $239 Avg Close — Range —
Q4 2019
Shares 2,512 Value ($000) $7 Avg Close — Range —
Q3 2019
Shares 3,384 Value ($000) $15 Avg Close — Range —
Q2 2019
Shares 950 Value ($000) $5 Avg Close — Range —
Q1 2019
Shares 93 Value ($000) $0 Avg Close — Range —
Q3 2018
Shares 516 Value ($000) $2 Avg Close — Range —
Q2 2018
Shares 907 Value ($000) $4 Avg Close — Range —
Q4 2017
Shares 793 Value ($000) $8 Avg Close — Range —
Q3 2017
Shares 4,211 Value ($000) $61 Avg Close — Range —