IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2023
Shares 1,507,809 Value ($000) $44,707 Avg Close — Range —
Q3 2023
Shares 300,514 Value ($000) $4,769 Avg Close — Range —
Q2 2023
Shares 300,514 Value ($000) $5,671 Avg Close — Range —
Q1 2023
Shares 288,664 Value ($000) $1,108 Avg Close — Range —
Q4 2022
Shares 288,664 Value ($000) $1,432 Avg Close — Range —
Q3 2022
Shares 324,073 Value ($000) $1,549 Avg Close — Range —
Q2 2022
Shares 480,321 Value ($000) $2,161 Avg Close — Range —
Q1 2022
Shares 288,664 Value ($000) $1,374 Avg Close — Range —
Q4 2021
Shares 287,864 Value ($000) $2,136 Avg Close — Range —
Q3 2021
Shares 414,471 Value ($000) $2,350 Avg Close — Range —
Q2 2021
Shares 287,864 Value ($000) $1,897 Avg Close — Range —
Q1 2021
Shares 287,864 Value ($000) $2,332 Avg Close — Range —
Q4 2020
Shares 287,864 Value ($000) $1,857 Avg Close — Range —
Q3 2020
Shares 287,864 Value ($000) $1,036 Avg Close — Range —
Q2 2020
Shares 297,564 Value ($000) $1,369 Avg Close — Range —
Q1 2020
Shares 290,964 Value ($000) $992 Avg Close — Range —
Q4 2019
Shares 290,964 Value ($000) $1,485 Avg Close — Range —
Q3 2019
Shares 318,664 Value ($000) $771 Avg Close — Range —
Q2 2019
Shares 330,264 Value ($000) $717 Avg Close — Range —
Q1 2019
Shares 221,664 Value ($000) $601 Avg Close — Range —
Q4 2018
Shares 337,444 Value ($000) $1,620 Avg Close — Range —
Q3 2018
Shares 215,203 Value ($000) $2,038 Avg Close — Range —
Q2 2018
Shares 215,517 Value ($000) $2,097 Avg Close — Range —
Q1 2018
Shares 120,164 Value ($000) $1,264 Avg Close — Range —
Q4 2017
Shares 120,764 Value ($000) $774 Avg Close — Range —
Q3 2017
Shares 118,264 Value ($000) $905 Avg Close — Range —
Q2 2017
Shares 118,264 Value ($000) $841 Avg Close — Range —
Q1 2017
Shares 118,264 Value ($000) $458 Avg Close — Range —
Q4 2016
Shares 152,964 Value ($000) $312 Avg Close — Range —
Q3 2016
Shares 152,964 Value ($000) $410 Avg Close — Range —
Q2 2016
Shares 181,864 Value ($000) $560 Avg Close — Range —
Q1 2016
Shares 145,964 Value ($000) $1,244 Avg Close — Range —
Q4 2015
Shares 146,244 Value ($000) $1,985 Avg Close — Range —
Q3 2015
Shares 158,548 Value ($000) $1,522 Avg Close — Range —
Q2 2015
Shares 175,734 Value ($000) $2,527 Avg Close — Range —
Q1 2015
Shares 164,734 Value ($000) $1,474 Avg Close — Range —
Q4 2014
Shares 164,734 Value ($000) $1,005 Avg Close — Range —
Q3 2014
Shares 167,440 Value ($000) $1,773 Avg Close — Range —
Q2 2014
Shares 167,440 Value ($000) $1,984 Avg Close — Range —
Q1 2014
Shares 167,451 Value ($000) $2,500 Avg Close — Range —
Q4 2013
Shares 167,484 Value ($000) $2,457 Avg Close — Range —
Q3 2013
Shares 173,906 Value ($000) $2,960 Avg Close — Range —
Q2 2013
Shares 182,234 Value ($000) $3,023 Avg Close — Range —