Historical shareholding details of MassMutual Mid Cap Growth Fund holdings in Biogen Inc (BIIB)

Monthly changes of MassMutual Mid Cap Growth Fund shareholding in Biogen Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Massmutual Mid Cap Growth Fund	57,800	0.04%

Mar 31, 2025	Massmutual Mid Cap Growth Fund	133,600	0.09%

Dec 31, 2024	Massmutual Mid Cap Growth Fund	158,600	0.11%

Sep 30, 2024	Massmutual Mid Cap Growth Fund	162,000	0.11%

Jun 30, 2024	Massmutual Mid Cap Growth Fund	166,500	0.11%

Mar 31, 2024	Massmutual Mid Cap Growth Fund	157,100	0.11%

Dec 31, 2023	Massmutual Mid Cap Growth Fund	120,400	0.08%

Sep 30, 2023	Massmutual Mid Cap Growth Fund	123,000	0.08%

Jun 30, 2023	Massmutual Mid Cap Growth Fund	89,000	0.06%