** Shares of Somnomed SOM.AX rise as much as 9.9% to A$0.945, their highest level since February 13, 2023

** Stock posts biggest intraday pct rise since October 20

** Medical device maker reports first-quarter revenue of A$28.7 million ($18.65 million), up 13.5% vs pcp

** Stock up 90.2% YTD, including the session's moves

($1 = 1.5389 Australian dollars)

(Reporting by Anjali Singh in Bengaluru)

((anjali.singh2@thomsonreuters.com; ))