Just bothered to look it up. OHHH what a surprise.
It should be illegal, this kind of back scratching. Just appalling even though it happens every day.
''Disclosure: In February 2008, Taylor Collison was appointed to act as broker for the Biota on-market buy back of up to 5% of the issued capital, or 9.17m shares.''
http://www.biota.com.au/uploaded/154/1021479_35taylorcollisonbta0902-2.pdf
In disclaimers