See this announcement by Steve Chambers:
https://www.atik-cameras.com/news/qsi-now-part-group-atik/
Interesting...
Sounds like a garage sale (fixed assets, stock, designs and trademarks...).
http://www.livecharts.co.uk/share_prices/Scientific-Digital-Imaging-acquires-Quantum-a-news27016852.html
Sorry to see QSI go, but I couldn't afford them anyway, good news for Atik I suppose.