Bulgarian hotel operator Sv. Sv. Konstantin i Elena Holding said that diversified group Holding Varna has increased its stake by acquiring 245,750 shares in the company at a weighted average price of 13.44 levs ($7.72/6.87 euro) apiece.The number of shares is equal to a 10.64% stake in Sv. Sv. Konstantin i Elena Holding, according to bourse data.Holding Varna acquired the shares in three deals on March 29 outside the Bulgarian Stock Exchange regulated market, the hotel operator said in a bourse filing on Tuesday.Holding Varna held a 51.58% stake in Sv. Sv. Konstantin i Elena Holding at the end of 2018.Holding Varna’s portfolio includes companies in the tourism, media, real estate, and financial sectors.