From today's AFR, it says that there was speculation of corporate activity for Kagara, from yesterday's big trading. However, it was an insto selling down its stake:
http://www.afr.com/p/opinion/kagara_climbs_on_speculation_nVJfHIBDyR2STrrOBMU77J
(the article should be in today's AFR hard copy- Street Talk section).