ImmunoGen, Inc.

Russell Investments Group, Ltd.

Report date

12/31/2023

Quarter

2023 Q4

Filed

2/5/2024

Shares

15,134

Value ($000)

449

Weight

0.0%

2019 Q4 - 2023 Q4 (17 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	2/5/2024	449	0.0%	15,134	12/31/2023
2023 Q3	11/13/2023	279	0.0%	17,593	9/30/2023
2023 Q2	8/10/2023	283	0.0%	14,986	6/30/2023
2023 Q1	5/9/2023	172	0.0%	44,800	3/31/2023
2022 Q4	2/8/2023	259	0.0%	52,200	12/31/2022
2022 Q3	11/4/2022	71	0.0%	14,900	9/30/2022
2022 Q2	7/29/2022	67	0.0%	14,900	6/30/2022
2022 Q1	5/5/2022	70	0.0%	14,900	3/31/2022
2021 Q4	1/21/2022	110	0.0%	14,900	12/31/2021
2021 Q3	11/8/2021	84	0.0%	14,900	9/30/2021
2021 Q2	8/4/2021	98	0.0%	14,900	6/30/2021
2021 Q1	5/10/2021	120	0.0%	14,900	3/31/2021
2020 Q4	2/8/2021	728	0.0%	113,019	12/31/2020
2020 Q3	11/9/2020	424	0.0%	118,290	9/30/2020
2020 Q2	8/5/2020	329	0.0%	72,312	6/30/2020
2020 Q1	5/6/2020	519	0.0%	151,937	3/31/2020
2019 Q4	1/29/2020	368	0.0%	72,100	12/31/2019