** Shares of medical devices maker Nanosonics NAN.AX fall 4.3% to A$4.64

** Bell Potter forecasts additional A$2.5 million ($1.59 million) to co's costs in FY26 due to U.S. tariffs on Australia

** Also sees co's new 'CORIS' devices to have minimal contribution to revenue in FY26

** Downgrades FY26 and FY27 earnings by 9%; reduces PT to A$4.05 from A$4.06

** Three analysts rate the stock "buy", 4 "hold" and 2 "sell"; their median PT is A$4.78 – LSEG data

** Stock trims YTD gains to 52.8%

($1 = 1.5726 Australian dollars)

(Reporting by Nichiket Sunil in Bengaluru)

((Nichiket.Sunil@thomsonreuters.com))