IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2023
Shares 25,466,950 Value ($000) $755,095 Avg Close — Range —
Q3 2023
Shares 24,482,155 Value ($000) $388,532 Avg Close — Range —
Q2 2023
Shares 20,899,026 Value ($000) $394,365 Avg Close — Range —
Q1 2023
Shares 14,968,322 Value ($000) $57,478 Avg Close — Range —
Q4 2022
Shares 14,378,435 Value ($000) $71,317 Avg Close — Range —
Q3 2022
Shares 15,624,848 Value ($000) $74,687 Avg Close — Range —
Q2 2022
Shares 16,059,020 Value ($000) $72,266 Avg Close — Range —
Q1 2022
Shares 15,478,516 Value ($000) $73,678 Avg Close — Range —
Q4 2021
Shares 15,131,752 Value ($000) $112,278 Avg Close — Range —
Q3 2021
Shares 14,611,623 Value ($000) $82,847 Avg Close — Range —
Q2 2021
Shares 14,653,190 Value ($000) $96,565 Avg Close — Range —
Q1 2021
Shares 14,307,139 Value ($000) $115,886 Avg Close — Range —
Q4 2020
Shares 14,157,000 Value ($000) $91,313 Avg Close — Range —
Q3 2020
Shares 14,188,530 Value ($000) $51,080 Avg Close — Range —
Q2 2020
Shares 14,904,994 Value ($000) $68,563 Avg Close — Range —
Q1 2020
Shares 16,042,784 Value ($000) $54,707 Avg Close — Range —
Q4 2019
Shares 14,225,670 Value ($000) $72,622 Avg Close — Range —
Q3 2019
Shares 13,939,556 Value ($000) $33,733 Avg Close — Range —
Q2 2019
Shares 10,659,479 Value ($000) $23,131 Avg Close — Range —
Q1 2019
Shares 10,529,150 Value ($000) $28,534 Avg Close — Range —
Q4 2018
Shares 10,492,223 Value ($000) $50,362 Avg Close — Range —
Q3 2018
Shares 10,158,434 Value ($000) $96,201 Avg Close — Range —
Q2 2018
Shares 9,767,517 Value ($000) $95,038 Avg Close — Range —
Q1 2018
Shares 8,888,608 Value ($000) $93,507 Avg Close — Range —
Q4 2017
Shares 9,655,527 Value ($000) $61,892 Avg Close — Range —
Q3 2017
Shares 7,279,254 Value ($000) $55,686 Avg Close — Range —
Q2 2017
Shares 4,248,688 Value ($000) $30,209 Avg Close — Range —
Q1 2017
Shares 4,110,431 Value ($000) $15,907 Avg Close — Range —
Q4 2016
Shares 4,083,290 Value ($000) $8,331 Avg Close — Range —
Q3 2016
Shares 5,896,321 Value ($000) $15,802 Avg Close — Range —
Q2 2016
Shares 7,017,710 Value ($000) $21,615 Avg Close — Range —
Q1 2016
Shares 6,708,705 Value ($000) $57,159 Avg Close — Range —
Q4 2015
Shares 6,385,382 Value ($000) $86,650 Avg Close — Range —
Q3 2015
Shares 5,925,425 Value ($000) $56,884 Avg Close — Range —
Q2 2015
Shares 5,724,157 Value ($000) $82,314 Avg Close — Range —
Q1 2015
Shares 5,578,691 Value ($000) $49,929 Avg Close — Range —
Q4 2014
Shares 5,310,180 Value ($000) $32,392 Avg Close — Range —
Q3 2014
Shares 5,175,126 Value ($000) $54,805 Avg Close — Range —
Q2 2014
Shares 5,201,812 Value ($000) $61,641 Avg Close — Range —
Q1 2014
Shares 5,243,545 Value ($000) $78,286 Avg Close — Range —
Q4 2013
Shares 5,041,738 Value ($000) $73,963 Avg Close — Range —
Q3 2013
Shares 4,831,726 Value ($000) $82,236 Avg Close — Range —
Q2 2013
Shares 4,675,560 Value ($000) $77,567 Avg Close — Range —