Danish pharmaceutical giant Novo Nordisk, maker of weight-loss drugs Ozempic and Wegovy, announced Thursday an unsolicited bid to acquire obesity treatment maker Metsera, topping an offer from US rival Pfizer which called the move "reckless".

Novo Nordisk's bid valued the US biotech firm at $6 billion.

"Under the terms of the proposal, Novo Nordisk would acquire all outstanding shares of Metsera's common stock at a price of $56.50 per share in cash," Novo Nordisk said in a statement.

It added that the bid was "currently subject to review by the Metsera board of directors."

In September, Pfizer said it would pay $47.50 per share to acquire Metsera, valuing the company at $4.9 billion.

Following the announcement, Metsera said the offer from Novo Nordisk was "superior", as defined in its

See Full Page