It does need to be remembered that the new shares issued to the senior lenders are in escrow - see item 2 of schedule 2 to the variety of 'Becoming a substantial shareholder' announcements at:
http://www.asx.com.au/asx/statistics/announcements.do?by=asxCode&asxCode=SGH&timeframe=R&dateReleased=22/12/2017
The new shareholders are prevented from trading their shares until:
"...from 24 hours after the earlier of: the date on which the Company's half year results for the period ended 31 December 2018 are released to ASX; and 28 February 2019"
Presumably this escrow period was included to provide some sort of stability to the restructuring to avoid existing shareholders being wary of a potential dumping of shares on the market in the imminent future.
Late February 2019 however will be an interesting time I imagine.
