Historical shareholding details of Artisan International Small-Mid Fund holdings in Immunogen, Inc. (IMGN)

Monthly changes of Artisan International Small-Mid Fund shareholding in Immunogen, Inc. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Dec 31, 2023	Artisan International Small-Mid Fund	737,364	0.26%

Sep 30, 2023	Artisan International Small-Mid Fund	2,298,733	0.86%

Jun 30, 2023	Artisan International Small-Mid Fund	2,298,733	0.92%

Mar 31, 2023	Artisan International Small-Mid Fund	1,981,793	0.77%