** Business support services provider ALS rises as much as 6.2% to A$15.565; biggest intraday pct gain since mid-November 2023

** Stock hits highest since Sept. 3

** Co reports half-year FY25 underlying rev of A$1.46 bln ($949 mln) vs A$1.28 bln a year ago

** Attributes result to strong growth in its life sciences segment, which assists engineering firms

** Says it is targeting mid-single-digit organic rev growth for full year 2025

** Stock up 17.6% YTD

($1 = A$1.5385)

(Reporting by Nikita Maria Jino in Bengaluru)

((Nikita.Jino@thomsonreuters.com;))