Interestingly when Don left...
...There appears to have been a bit of 'market panic'. However it says indirectly he still works for Gems.
Google "Don Kogan" and you get this statement on the 'marketchatter board' website.
CIMB
29 Octobert 2007
Gems TV Holding Limited (GEMS SP / GEMS.SI, OUTPERFORM - Maintained, S$0.55 - Target: S$1.32)
Quick takes - Unwarranted concerns over Don’s resignation
by Kasem PRUNRATANAMALA
We believe that the market over-reacted to the company’s recent announcement of the resignation of Mr Don Kogan, President of Gemstones & Manufacturing of Gems TV. Management and Mr Kogan himself confirmed that his departure is due to health reasons. While Mr Kogan has resigned, he will remain on the board of directors in a strategic role, spending more time on R&D to help the company identify new business opportunities. All in, we view this transition positively. Maintain Outperform and end-CY08 target price of S$1.32, based on 15x CY09 P/E and 7x CY09 EV/EBITDA. Unwarranted selling pressure should be taken as an opportunity to buy into Gems TV, in our view. -