ImmunoGen, Inc.

RENAISSANCE TECHNOLOGIES LLC

Report date

12/31/2023

Quarter

2023 Q4

Filed

2/13/2024

Shares

1,631,240

Value ($000)

48,366

Weight

0.1%

2019 Q4 - 2023 Q4 (16 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	2/13/2024	48,366	0.1%	1,631,240	12/31/2023
2023 Q3	11/14/2023	11,659	0.0%	734,640	9/30/2023
2023 Q2	8/11/2023	22,984	0.0%	1,218,040	6/30/2023
2023 Q1	5/12/2023	304	0.0%	79,140	3/31/2023
2022 Q3	11/14/2022	8,151	0.0%	1,705,140	9/30/2022
2022 Q2	8/12/2022	6,519	0.0%	1,448,740	6/30/2022
2022 Q1	5/13/2022	6,961	0.0%	1,462,340	3/31/2022
2021 Q4	2/11/2022	9,033	0.0%	1,217,387	12/31/2021
2021 Q3	11/12/2021	6,474	0.0%	1,141,840	9/30/2021
2021 Q2	8/13/2021	13,734	0.0%	2,084,090	6/30/2021
2021 Q1	5/13/2021	15,093	0.0%	1,863,340	3/31/2021
2020 Q4	2/10/2021	27,322	0.0%	4,235,966	12/31/2020
2020 Q3	11/13/2020	23,361	0.0%	6,489,139	9/30/2020
2020 Q2	8/13/2020	44,460	0.0%	9,665,139	6/30/2020
2020 Q1	5/14/2020	37,565	0.0%	11,016,129	3/31/2020
2019 Q4	2/13/2020	54,660	0.0%	10,707,139	12/31/2019