** Shares of Intelligent Monitoring Group IMB.AX rise 12.1% to A$0.555, posting their biggest intraday percentage gain since Nov. 8, 2024
** Stock hits its highest level since Jan. 2
** Security firm announces new debt facility with National Australia Bank NAB.AX
** Says facility provides up to A$122.5 mln ($76.15 mln) of debt
** Stock down 3.6% this year, including day's move
($1 = 1.6088 Australian dollars)
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))