Historical shareholding details of JANE STREET GROUP, LLC holdings in Immunogen, Inc. (IMGN)

Monthly changes of JANE STREET GROUP, LLC shareholding in Immunogen, Inc. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Sep 30, 2023	Jane Street Group, Llc	917,764	0.33%

Jun 30, 2023	Jane Street Group, Llc	879,700	0.35%

Mar 31, 2023	Jane Street Group, Llc	16,631	0.01%

Dec 31, 2022	Jane Street Group, Llc	68,887	0.03%