ImmunoGen, Inc.

PANAGORA ASSET MANAGEMENT INC

Report date

12/31/2023

Quarter

2023 Q4

Filed

2/8/2024

Shares

409,658

Value ($000)

12,146

Weight

0.1%

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	2/8/2024	12,146	0.1%	409,658	12/31/2023
2023 Q3	10/31/2023	17,432	0.1%	1,098,417	9/30/2023
2023 Q2	8/11/2023	21,096	0.1%	1,117,969	6/30/2023
2023 Q1	5/12/2023	4,674	0.0%	1,217,142	3/31/2023
2022 Q4	2/13/2023	5,314	0.0%	1,071,351	12/31/2022
2022 Q3	11/14/2022	5,167	0.0%	1,081,008	9/30/2022
2022 Q2	8/15/2022	5,225	0.0%	1,161,213	6/30/2022
2022 Q1	5/12/2022	5,588	0.0%	1,173,855	3/31/2022
2021 Q4	2/10/2022	8,418	0.0%	1,134,470	12/31/2021
2021 Q3	11/10/2021	6,505	0.0%	1,147,194	9/30/2021
2021 Q2	8/11/2021	7,421	0.0%	1,126,085	6/30/2021
2021 Q1	5/12/2021	9,825	0.1%	1,212,909	3/31/2021
2020 Q4	2/10/2021	8,469	0.1%	1,313,077	12/31/2020
2020 Q3	11/13/2020	4,178	0.0%	1,160,512	9/30/2020
2020 Q2	8/12/2020	8,412	0.1%	1,828,760	6/30/2020
2020 Q1	5/14/2020	5,456	0.0%	1,600,078	3/31/2020
2019 Q4	2/12/2020	10,742	0.0%	2,104,217	12/31/2019