MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328209 Class: Common Stock

BALDWIN BROTHERS LLC/MA's Holding History (CIK: 0001021258)

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

Q1 2023
Shares 500 Value ($000) $6 Avg Close — Range —
Q4 2022
Shares 500 Value ($000) $6 Avg Close — Range —
Q3 2022
Shares 500 Value ($000) $2 Avg Close — Range —
Q2 2022
Shares 500 Value ($000) $3 Avg Close — Range —
Q1 2022
Shares 500 Value ($000) $3 Avg Close — Range —
Q4 2021
Shares 500 Value ($000) $2 Avg Close — Range —
Q3 2021
Shares 500 Value ($000) $2 Avg Close — Range —
Q2 2021
Shares 500 Value ($000) $3 Avg Close — Range —
Q1 2021
Shares 500 Value ($000) $3 Avg Close — Range —
Q4 2020
Shares 500 Value ($000) $3 Avg Close — Range —
Q3 2020
Shares 500 Value ($000) $2 Avg Close — Range —
Q2 2020
Shares 500 Value ($000) $2 Avg Close — Range —
Q1 2020
Shares 500 Value ($000) $1 Avg Close — Range —
Q4 2019
Shares 500 Value ($000) $2 Avg Close — Range —
Q3 2019
Shares 500 Value ($000) $2 Avg Close — Range —
Q2 2019
Shares 500 Value ($000) $3 Avg Close — Range —
Q1 2019
Shares 500 Value ($000) $3 Avg Close — Range —
Q4 2018
Shares 500 Value ($000) $2 Avg Close — Range —
Q3 2018
Shares 500 Value ($000) $3 Avg Close — Range —
Q2 2018
Shares 500 Value ($000) $2 Avg Close — Range —
Q1 2018
Shares 500 Value ($000) $4 Avg Close — Range —