** Shares of EBR Systems, Inc. EBR.AX rise as much as 13.3% to A$0.595, on track to log their strongest intraday trading session since September 17, 2025
** Wireless cardiac pacing system provider secured a purchasing agreement with HCA Healthcare in the U.S.
** Co says deal marks significant step in commercial rollout of its WiSE CRT System
** Deal to streamline procurement and contracting pathways for WiSE System across HCA Healthcare hospitals
** Around 1.1 mln shares traded so far, almost 2x 30-day avg volume
** Day's gains cut stock's YTD losses to 36.3%
(Reporting by Shivangi Lahiri in Bengaluru)
((shivangi.lahiri@thomsonreuters.com))