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By my estimation CBA were holding as much as 16.8 million shares following their last announced sell down on 4/10/07.

If correct, and they have not sold any more then they could be holding as much as 8.7 million shares* after today. On the other hand if they have continued to sell then this could possibly be the last of their holdings.

This is on the assumption that they were the ones that sold the 8.1 million shares at noon today, although I think that is a very safe bet.