Russian telecom operator VimpelCom (VEON 0.55%) will receive $1.4 billion from the conversion of a set of preferred shares into common stock by one of its leading shareholders, the company announced in a press release.

The shareholder, Altimo, is the telecom's wing of Alfa Group, one of Russia's largest and most long-standing conglomerates. Following the one-to-one conversion, which is to take place next April, Altimo's holding in VimpelCom common stock will increase by 3.5 percentage points to just over 56%. Its voting stake, however, will remain the same at 47.9%.

The $1.4 billion is the conversion premium Altimo is obligated to pay to modify its shareholding.