Societe Generale is considering buying 26% of Poland’s Alior Bank from its biggest shareholder, Carlo Tassara. Polish billionaire Leszek Czarnecki is also weighing a bid, according to sources. The stake held by Carlo Tassara is worth about 1.43 billion zloty ($390 million). Societe Generale CEO Frederic Oudea has said he may invest in European consumer or private banking, and has as much as 4 billion euros ($4.7 billion) to spend on acquisitions through 2016. Alior, which owns the fourth-biggest branch network in Poland, has been among the fastest-growing banks since its creation in 2008.