LONDON : Mariano Belinky, former chief executive officer of Banco Santander's asset management arm, has joined financial technology-focused private equity firm Motive Partners, the investment company will announce Monday. Belinky joins the company in London as industry partner to help Motive build, buy and invest in financial technology companies. Belinky was appointed CEO of Santander Asset Management in 2018 after it was re-acquired from Warburg Pincus and General Atlantic. Founded in 2016, Motive Partners makes growth equity and buyout investments in software and information service companies focused on the financial industry.