ImmunoGen, Inc.

VANGUARD GROUP INC

Report date

12/31/2023

Quarter

2023 Q4

Filed

3/11/2024

Shares

25,466,950

Value ($000)

755,095

Weight

0.0%

2013 Q4 - 2023 Q4 (20 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2023 Q4	3/11/2024	755,095	0.0%	25,466,950	12/31/2023
2023 Q3	12/18/2023	388,532	0.0%	24,482,155	9/30/2023
2023 Q2	8/14/2023	394,365	0.0%	20,899,026	6/30/2023
2023 Q1	7/14/2023	57,478	0.0%	14,968,322	3/31/2023
2022 Q4	2/10/2023	71,317	0.0%	14,378,435	12/31/2022
2022 Q3	11/14/2022	74,687	0.0%	15,624,848	9/30/2022
2022 Q2	8/12/2022	72,266	0.0%	16,059,020	6/30/2022
2022 Q1	5/13/2022	73,678	0.0%	15,478,516	3/31/2022
2021 Q4	2/14/2022	112,278	0.0%	15,131,752	12/31/2021
2021 Q3	11/12/2021	82,847	0.0%	14,611,623	9/30/2021
2021 Q2	8/13/2021	96,565	0.0%	14,653,190	6/30/2021
2021 Q1	5/14/2021	115,886	0.0%	14,307,139	3/31/2021
2020 Q4	2/12/2021	91,313	0.0%	14,157,000	12/31/2020
2020 Q3	11/16/2020	51,080	0.0%	14,188,530	9/30/2020
2020 Q2	8/14/2020	68,563	0.0%	14,904,994	6/30/2020
2020 Q1	5/15/2020	54,707	0.0%	16,042,784	3/31/2020
2019 Q4	2/14/2020	72,622	0.0%	14,225,670	12/31/2019
2014 Q2	8/11/2014	61,641	0.0%	5,201,812	6/30/2014
2014 Q1	5/13/2014	78,286	0.0%	5,243,545	3/31/2014
2013 Q4	2/12/2014	73,963	0.0%	5,041,738	12/31/2013