In a filing with the stock exchange, UTI Investment Advisory Services said it has acquired eight per cent voting rights in the company in relation to pledged shares after notification of a default.
It said the shares itself have not been acquired as the pledge has not been invoked and these shares remain pledged to the acquirer.
United Breweries closed at Rs 922 a share on Wednesday with a market value of Rs 24,376 crore.
Vijay Mallya-owned UB Group is facing a liquidity crisis with banks seeking return of Rs 7,000 crore from the group. The group did not comment on the default.