Ann: Appendix 3B - Exercise of Unlisted Options, page-3

Maybe, but don't forget market would have anticipated these last 11.825m options would be claimed. Consider the alternative if not exercised, wouldn't the market see this as a negative considering the relative prices (SP to option price).
Also revealed today new top 10 as at 2 January (which do not include these options) reflecting the change in top10 positions participating in underwritten options uptake December.
Changes:
Increases
CS Third 10.1m
Carpe Diem 15m (doubles to holding 30m and is now largest SH at 11.56%)
HSBC 0.613m
JPMorgan 0.84m
JPMSAL 3.617m (New ??)
Decrease
HSBC No.2 a/c 8.34m
Over and above these changes an additional 2.05m were taken up by top 10 holder/s since December update.