Historical shareholding details of The Vanguard - Russell 2000 Grwth Idx CF holdings in Immunogen, Inc. (IMGN)

Monthly changes of The Vanguard - Russell 2000 Grwth Idx CF 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	The Vanguard - Russell 2000 Grwth Idx Cf	227,388	0.08%

Jun 30, 2023	The Vanguard - Russell 2000 Grwth Idx Cf	227,008	0.09%

Apr 30, 2023	The Vanguard - Russell 2000 Grwth Idx Cf	158,709	0.06%