IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q4 2023
Shares 1,127,402 Value ($000) $33,427 Avg Close — Range —
Q3 2023
Shares 984,664 Value ($000) $15,627 Avg Close — Range —
Q2 2023
Shares 987,886 Value ($000) $18,641 Avg Close — Range —
Q1 2023
Shares 55,996 Value ($000) $215 Avg Close — Range —
Q4 2022
Shares 53,783 Value ($000) $267 Avg Close — Range —
Q3 2022
Shares 52,167 Value ($000) $249 Avg Close — Range —
Q2 2022
Shares 46,883 Value ($000) $211 Avg Close — Range —
Q1 2022
Shares 164,004 Value ($000) $781 Avg Close — Range —
Q4 2021
Shares 219,341 Value ($000) $1,627 Avg Close — Range —
Q3 2021
Shares 248,959 Value ($000) $1,411 Avg Close — Range —
Q2 2021
Shares 253,289 Value ($000) $1,670 Avg Close — Range —
Q1 2021
Shares 259,564 Value ($000) $2,102 Avg Close — Range —
Q4 2020
Shares 240,719 Value ($000) $1,553 Avg Close — Range —
Q3 2020
Shares 281,497 Value ($000) $1,013 Avg Close — Range —
Q2 2020
Shares 180,299 Value ($000) $830 Avg Close — Range —
Q1 2020
Shares 41,508 Value ($000) $141 Avg Close — Range —
Q4 2019
Shares 37,790 Value ($000) $193 Avg Close — Range —
Q3 2019
Shares 41,262 Value ($000) $100 Avg Close — Range —
Q2 2019
Shares 37,439 Value ($000) $82 Avg Close — Range —
Q1 2019
Shares 114,380 Value ($000) $310 Avg Close — Range —
Q4 2018
Shares 114,173 Value ($000) $548 Avg Close — Range —
Q3 2018
Shares 110,477 Value ($000) $1,046 Avg Close — Range —
Q2 2018
Shares 103,173 Value ($000) $1,004 Avg Close — Range —
Q1 2018
Shares 87,202 Value ($000) $918 Avg Close — Range —
Q4 2017
Shares 76,762 Value ($000) $492 Avg Close — Range —
Q3 2017
Shares 13,054 Value ($000) $100 Avg Close — Range —
Q2 2017
Shares 15,101 Value ($000) $107 Avg Close — Range —
Q1 2017
Shares 15,101 Value ($000) $58 Avg Close — Range —
Q4 2016
Shares 15,101 Value ($000) $31 Avg Close — Range —
Q3 2016
Shares 15,101 Value ($000) $40 Avg Close — Range —
Q2 2016
Shares 15,101 Value ($000) $47 Avg Close — Range —
Q1 2016
Shares 15,101 Value ($000) $129 Avg Close — Range —
Q4 2015
Shares 14,963 Value ($000) $203 Avg Close — Range —
Q3 2015
Shares 14,581 Value ($000) $140 Avg Close — Range —
Q2 2015
Shares 12,995 Value ($000) $187 Avg Close — Range —
Q4 2014
Shares 15,975 Value ($000) $97 Avg Close — Range —
Q3 2014
Shares 17,860 Value ($000) $189 Avg Close — Range —
Q2 2014
Shares 17,860 Value ($000) $212 Avg Close — Range —
Q1 2014
Shares 20,457 Value ($000) $305 Avg Close — Range —
Q4 2013
Shares 29,071 Value ($000) $426 Avg Close — Range —
Q3 2013
Shares 29,227 Value ($000) $497 Avg Close — Range —
Q2 2013
Shares 19,329 Value ($000) $321 Avg Close — Range —