ImmunoGen, Inc.

NISA INVESTMENT ADVISORS, LLC

Report date

12/31/2023

Quarter

2023 Q4

Filed

1/25/2024

Shares

6,970

Value ($000)

207

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	1/25/2024	207	0.0%	6,970	12/31/2023
2023 Q3	11/2/2023	102	0.0%	6,430	9/30/2023
2023 Q2	8/11/2023	122	0.0%	6,448	6/30/2023
2023 Q1	5/2/2023	22	0.0%	5,600	3/31/2023
2022 Q4	2/2/2023	52	0.0%	10,490	12/31/2022
2022 Q3	11/7/2022	63	0.0%	10,554	9/30/2022
2022 Q2	8/3/2022	47	0.0%	10,390	6/30/2022
2022 Q1	4/29/2022	23	0.0%	4,790	3/31/2022
2021 Q4	2/3/2022	52	0.0%	9,260	12/31/2021
2021 Q3	10/18/2021	72	0.0%	12,730	9/30/2021
2021 Q2	8/6/2021	84	0.0%	12,730	6/30/2021
2021 Q1	4/26/2021	103	0.0%	12,730	3/31/2021
2020 Q4	1/25/2021	82	0.0%	12,730	12/31/2020
2020 Q3	10/20/2020	11	0.0%	3,030	9/30/2020
2020 Q2	7/27/2020	9	0.0%	2,040	6/30/2020
2020 Q1	4/17/2020	5	0.0%	1,600	3/31/2020
2019 Q4	1/17/2020	8	0.0%	1,600	12/31/2019