** Argent Biopharma RGT.AX surges as much as 272.1% to A$0.32; marks biggest intra-day pct gain since August 21, 2024
** Stocks hits highest since October 24, 2024; eyes fourth straight session of gains
** Drug discovery firm signs binding term sheet to acquire cannabinoid-based therapeutics co AusCann Group for $15 million
** Co to secure Neuvis patented drug-delivery tech, FDA-facing epilepsy pre-clinical data, others under deal
** About 1.8 mln shares traded in stock's busiest day ever
** RGT last up 74.4%, trimming YTD losses to 26.5%
(Reporting by Ananya Verma in Bengaluru)
((ananya.verma@thomsonreuters.com;))