If you have a look at the course of sales half of those 300k orders went through before the big dump and half got caught at the tail end of the dump.
I wouldn't say there are too many holders with a holding over 200m?
HSBC Custody Nominees (Australia) Limited 284,756,302 6.125%
2 Alimold Pty Ltd 276,920,000 5.956%
3 Mrs P J Bligh 164,603,755 3.540%