IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2023
Shares 1,187,027 Value ($000) $35,195 Avg Close — Range —
Q1 2023
Shares 114,355 Value ($000) $439 Avg Close — Range —
Q4 2022
Shares 228,415 Value ($000) $1,133 Avg Close — Range —
Q3 2022
Shares 236,200 Value ($000) $1,129 Avg Close — Range —
Q1 2021
Shares 523,087 Value ($000) $4,237 Avg Close — Range —
Q1 2020
Shares 174,919 Value ($000) $597 Avg Close — Range —
Q4 2019
Shares 113,932 Value ($000) $582 Avg Close — Range —
Q2 2019
Shares 144,493 Value ($000) $314 Avg Close — Range —
Q4 2018
Shares 261,608 Value ($000) $1,256 Avg Close — Range —