They have been releasing them every two months, so next is due 1 Dec.
As far as I am aware James Sullivan is not in the T20... in fact i just looked in the 2017 Annual Report and as of 31 December 2017 - the Head Geo - James Sullivan did not hold any shares - Refer page 19.
All he holds according to this is 2,000,000 options which were gifted as entitlements.
So i guess based on that, your right he hasnt sold any.