** Shares of Nu Holdings NU.N fall 2% to $13.39 premarket
** The listed-entity, which runs Brazilian digital lender Nubank, said that Youssef Lahrech stepped down as president and chief operating officer
** Lahrech's functions will be absorbed by CEO David Velez, while Lahrech will counsel the audit and risk committee of Nu Holdings' board of directors and advise the company in strategic credit-related initiatives, co says in filing
** Filing last week showed Warren Buffett's Berkshire Hathaway had dissolved a stake in NU as of March 31
** NU reported a 37% increase in its quarterly adjusted net profit from a year earlier, slightly missing analysts' estimates on May 13
** NU stock up 23.3% so far this year versus S&P 500 banks' index .SPXBK
(Reporting by Medha Singh)