ImmunoGen, Inc.

Rafferty Asset Management, LLC

Report date

12/31/2023

Quarter

2023 Q4

Filed

2/13/2024

Shares

307,369

Value ($000)

9,113

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	2/13/2024	9,113	0.0%	307,369	12/31/2023
2023 Q3	11/13/2023	8,998	0.1%	566,985	9/30/2023
2023 Q2	8/11/2023	6,365	0.0%	337,286	6/30/2023
2023 Q1	5/11/2023	5,253	0.0%	1,367,970	3/31/2023
2022 Q4	2/13/2023	6,786	0.1%	1,368,213	12/31/2022
2022 Q3	11/14/2022	4,529	0.0%	947,451	9/30/2022
2022 Q2	8/12/2022	3,366	0.0%	748,016	6/30/2022
2022 Q1	5/13/2022	4,060	0.0%	852,884	3/31/2022
2021 Q4	2/10/2022	3,065	0.0%	413,034	12/31/2021
2021 Q3	11/10/2021	1,720	0.0%	303,293	9/30/2021
2021 Q2	8/10/2021	2,653	0.0%	402,546	6/30/2021
2021 Q1	5/10/2021	3,060	0.0%	377,762	3/31/2021
2020 Q4	2/10/2021	513	0.0%	79,515	12/31/2020
2020 Q3	11/13/2020	825	0.0%	229,120	9/30/2020
2020 Q2	8/7/2020	465	0.0%	101,187	6/30/2020
2020 Q1	5/15/2020	50	0.0%	14,641	3/31/2020
2019 Q4	2/10/2020	635	0.0%	124,313	12/31/2019