From Longman Business Dictionary
shareholdingshare·hold·ing /ˈʃeəˌhəʊldɪŋˈʃerˌhoʊ-/ noun [countableC]FINANCE a quantity of shares in a company held by a particular person or organizationSYN STAKEShareholders can protect themselves from hostile takeovers by not agreeing to sell their shareholdings at a discount.
shareholding inHe has now acquired a 51% shareholding in the group.
→ majority shareholding → minority shareholding