ImmunoGen, Inc.

Magnetar Financial LLC

Report date

12/31/2023

Quarter

2023 Q4

Filed

2/13/2024

Shares

1,629,285

Value ($000)

48,308

Weight

1.2%

2023 Q4 - 2023 Q4 (1 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	48,308	1.2%	1,629,285	12/31/2023