IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q4 2023
Shares 126 Value ($000) $4 Avg Close Range
Q3 2023
Shares 126 Value ($000) $2 Avg Close Range
Q2 2023
Shares 126 Value ($000) $2 Avg Close Range
Q1 2023
Shares 126 Value ($000) $0 Avg Close Range
Q4 2022
Shares 126 Value ($000) $1 Avg Close Range
Q3 2022
Shares 126 Value ($000) $1 Avg Close Range
Q2 2022
Shares 126 Value ($000) $1 Avg Close Range
Q1 2022
Shares 268 Value ($000) $1 Avg Close Range
Q4 2021
Shares 22,768 Value ($000) $169 Avg Close Range
Q3 2021
Shares 22,768 Value ($000) $129 Avg Close Range
Q2 2021
Shares 22,768 Value ($000) $150 Avg Close Range
Q1 2021
Shares 22,768 Value ($000) $184 Avg Close Range
Q4 2020
Shares 25,268 Value ($000) $163 Avg Close Range
Q1 2020
Shares 275 Value ($000) $1 Avg Close Range
Q2 2019
Shares 134 Value ($000) $0 Avg Close Range
Q1 2019
Shares 98 Value ($000) $0 Avg Close Range
Q3 2018
Shares 141 Value ($000) $1 Avg Close Range
Q1 2014
Shares 22 Value ($000) $0 Avg Close Range