Share transfer intimation

Hello,

In a private limited company to shareholders Mr. A (holding 5% of share) Mr. B (holding 15% shares ). Both of them sent a letter to the company intending to sell of their stakes in the company. 

Now the company is supposed to inform its shareholders about the availability of the shares and its price.

Now my questions is that, the company need to inform the availability of the shares of Mr. A to Mr. B and vice versa? Technically saying they are also the members of the company until the transfer is complete, so each of them should be informed about the availability of the shares of the other person..right?

Please advice.

Thanks,

ArchAngel.