** Shares of Australian Clinical Labs ACL.AX rise as much as 5.1% to A$2.66, marking their highest level since September 4** Pathology services provider announces a new 12-month on-market share buyback programme of up to 19.5 million shares** Stock last up nearly 2% at A$2.58, on track for best day since October 16** YTD, ACL down 25.3%
(Reporting by Jasmeen Ara Shaikh)
((Jasmeenaraislam.shaikh@thomsonreuters.com))