** Shares of Spacetalk SPA.AX rise as much as 26.9% to A$0.165, marking their biggest intraday pct gain since August 28, 2024

** Shares hit their highest since mid-July

** Tech firm posts narrower full-year loss attributable of A$4.5 million ($2.92 million) vs loss of A$6.2 million a year ago

** Says FY revenue from other activities jumps 12.2% y/y to A$19.6 million

** About 543,511 mln shares traded, 9.4x the 30-day average

** YTD, stock up 6.5%, including session's move

($1 = 1.5389 Australian dollars)

(Reporting by Ananya Verma in Bengaluru)

((ananya.verma@thomsonreuters.com;))