ImmunoGen, Inc.

NEW YORK STATE COMMON RETIREMENT FUND

Report date

12/31/2023

Quarter

2023 Q4

Filed

10/8/2025

Shares

146,489

Value ($000)

4,343

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	10/8/2025	4,343	0.0%	146,489	12/31/2023
2023 Q3	10/8/2025	5,157	0.0%	324,926	9/30/2023
2023 Q2	10/8/2025	5,366	0.0%	284,389	6/30/2023
2023 Q1	10/8/2025	928	0.0%	241,711	3/31/2023
2022 Q4	10/8/2025	1,084	0.0%	218,627	12/31/2022
2022 Q3	11/8/2022	990	0.0%	207,030	9/30/2022
2022 Q2	8/4/2022	935	0.0%	207,766	6/30/2022
2022 Q1	7/1/2022	987	0.0%	207,333	3/31/2022
2021 Q4	2/2/2022	1,480	0.0%	199,520	12/31/2021
2021 Q3	11/2/2021	728	0.0%	128,436	9/30/2021
2021 Q2	8/2/2021	1,066	0.0%	161,705	6/30/2021
2021 Q1	5/11/2021	1,297	0.0%	160,100	3/31/2021
2020 Q4	2/8/2021	1,005	0.0%	155,800	12/31/2020
2020 Q3	11/5/2020	567	0.0%	157,400	9/30/2020
2020 Q2	8/7/2020	724	0.0%	157,400	6/30/2020
2020 Q1	5/6/2020	444	0.0%	130,300	3/31/2020
2019 Q4	2/5/2020	665	0.0%	130,300	12/31/2019