** Shares of insurance broker Brown & Brown BRO.N down 4.89% at $62.87
** "We anticipate relatively flat organic growth, excluding contingents in Q2 due to heavy weighting of CAT property placements," CEO J Powell Brown says
** BRO reports flat organic revenue growth for the first quarter, with the metric rising 1% in retail and increasing 2% in specialty distribution
** Co posts Q4 revenue of $1.90 billion, below analysts' estimates of $1.91 billion - data compiled by LSEG
** Three of 21 analysts rate stock "buy" and 18 "hold"; their median PT is $78.50 - data compiled by LSEG
** Including session's move, stock down 20.8%
(Reporting by Pragyan Kalita in Bengaluru)
((Pragyan.Kalita@thomsonreuters.com;))