** Shares of U.S. fintech firm Fiserv FI.N up 3.05% at $220.46 premarket

** Co reports Q4 revenue of $4.90 bln, above analysts' average estimate of $4.96 bln, according to data compiled by LSEG

** Also reports Q4 adj. profit of $2.51 per share vs estimates of $2.48

** Forecasts FY organic revenue growth of 10% to 12%, above estimates of 8.71%

** Also expects FY adj profit between $10.10 and $10.30 per share vs estimates of $10.21 per share

** Shares rose ~54.64% in 2024

(Reporting by Megha Kumari in Bengaluru)

((Megha.Kumari@thomsonreuters.com;))