Branson does very well out of SIA.
In 1999, Branson sold 49% of Virgin Atlantic to SIA for SGD1.8 bil. In 2012, SIA sold its stake for SGD446 mil - writedown of 75%. In 2000, Branson started Virgin Australia for A$30 mil. In 2013, SIA buys part of Branson's stake of Virgin Australia valuing his stake at A$250 mil.
Anyhow, quite a few interesting articles on this. Eg
Cookies must be enabled. | The Australian
How this transaction would unnerve Etihad
Virgin deal a headache for Borghetti, and for Qantas
Now for the Borghetti juggling act
Borghetti's juggling act dealing with NZ, EY and SQ as shareholders
I still think QF is getting more out of EK for free, than SQ is getting out of VA for however much it is they paid for them altogether ($250 mil?)