Looks like the shares Mr Xu have sold off market may have been...

Looks like the shares Mr Xu have sold off market may have been going to Mr Natarajan Chandrasekaran. This shareholder is also the chairman of a multibillion dollar Indian conglomerate (owns Tetleys Teas and various other companies) and was listed as a 2.5% shareholder from last year onwards. Xu and his associates still have a majority stake so the sale is likely to be strategic.
-If Xu plans to buyout minority shareholders (most likely) he is getting paid now then buying back these shares anyway with companys cash.
-Xu may be trying to create business ties with Mr Chandrasekaran and if Xu does buyback the company at least this holder will probably make a reasonable profit at these prices.