Sell-off comes just a week after troubled firm reveals its first annual loss in six years

Lenovo Group Ltd's shares dropped 4 percent on Thursday, after it was revealed that Google Inc was looking to offload about 371 million shares in the Hong Kong-listed company.

The shares are being offered at HK$4.58 (59 cents) per share, a discount of 3.6 percent on Wednesday's close, and Google is expected to raise about $219 million, Bloomberg reported.