ImmunoGen, Inc.

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Report date

12/31/2023

Quarter

2023 Q4

Filed

2/6/2024

Shares

1,892,446

Value ($000)

56,111

Weight

0.0%

2013 Q4 - 2023 Q4 (20 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	2/6/2024	56,111	0.0%	1,892,446	12/31/2023
2023 Q3	11/8/2023	29,051	0.0%	1,830,575	9/30/2023
2023 Q2	8/10/2023	34,163	0.0%	1,810,462	6/30/2023
2023 Q1	5/12/2023	5,987	0.0%	1,559,021	3/31/2023
2022 Q4	2/13/2023	7,745	0.0%	1,561,584	12/31/2022
2022 Q3	11/14/2022	7,291	0.0%	1,525,106	9/30/2022
2022 Q2	8/15/2022	6,589	0.0%	1,464,219	6/30/2022
2022 Q1	5/13/2022	7,142	0.0%	1,500,219	3/31/2022
2021 Q4	2/11/2022	10,551	0.0%	1,421,923	12/31/2021
2021 Q3	11/16/2021	7,973	0.0%	1,406,002	9/30/2021
2021 Q2	8/16/2021	9,637	0.0%	1,462,235	6/30/2021
2021 Q1	5/17/2021	11,645	0.0%	1,437,600	3/31/2021
2020 Q4	2/16/2021	7,919	0.0%	1,227,636	12/31/2020
2020 Q3	11/13/2020	4,104	0.0%	1,139,973	9/30/2020
2020 Q2	8/20/2020	5,337	0.0%	1,160,095	6/30/2020
2020 Q1	5/15/2020	3,666	0.0%	1,074,940	3/31/2020
2019 Q4	2/7/2020	4,613	0.0%	903,495	12/31/2019
2014 Q2	7/30/2014	2,752	0.0%	232,205	6/30/2014
2014 Q1	4/29/2014	3,480	0.0%	233,055	3/31/2014
2013 Q4	2/14/2014	3,231	0.0%	220,224	12/31/2013