Fitbit says it has not received any bid offers from ABM Capital.

Fitbit has been forced to deny rumours of a takeover following a regulatory announcement purporting to describe a $2.8bn offer for the company.

The US Securities and Exchange Commission filing, made by ABM Capital, said that the Chinese fund had written a letter to the fitness tracker maker offering to buy all outstanding shares for $12.50 each.

As Fitbit s shares rose by more than 5% off the back of the filing, the company was forced to deny the takeover offer and said that no such letter had ever been received.

In a statement, Fitbit said:

Fitbit has not received any communication from ABM Capital, or any other firm, regarding a reported offer.