Historical shareholding details of American Century Companies Inc holdings in Immunogen, Inc. (IMGN)

Monthly changes of American Century Companies Inc 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	American Century Companies Inc	699,116	0.25%

Jun 30, 2023	American Century Companies Inc	700,323	0.28%