, according to bloomberg, according to people familiar with the Synaptics will purchase agreement with a Chinese investment group, and on the touch screen chip maker's valuation of more than $110 a share.

On the news, Synaptics shares jumped 40% on Wednesday, to $86.76.

, according to people familiar with the deal for Synaptics valuation of about $4 billion, is expected to be completed in early march at the earliest. But the talks could still break.

Synaptics has yet to comment immediately.

, according to bloomberg headquarters is located in SAN jose, California, us Synaptics refused the last September has the state-backed Chinese group of $110 a share offer.